AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST   , 2002
                                                  REGISTRATION NO. 333-
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                              ---------------------
                                    FORM N-14

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933                      [X]

                              ---------------------

                        PRE-EFFECTIVE AMENDMENT NO.                        [ ]
                        POST-EFFECTIVE AMENDMENT NO.                       [ ]

                              ---------------------

                                 MORGAN STANLEY
                           HIGH YIELD SECURITIES INC.
               (Exact Name of Registrant as Specified in Charter)
     (formerly named Morgan Stanley Dean Witter High Yield Securities Inc.)

                           1221 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10020
                    (Address of Principal Executive Offices)


                              ---------------------

                         (Registrant's Telephone Number)

                                BARRY FINK, ESQ.
                           1221 Avenue of the Americas
                            New York, New York 10020
                     (Name and Address of Agent for Service)

                              ---------------------

                                    COPY TO:
                             STUART M. STRAUSS, ESQ.
                            Mayer, Brown, Rowe & Maw
                                 1675 Broadway
                            New York, New York 10019

                              ---------------------

                  APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
As soon as practicable after the effective date of this Registration statement.

     REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL REGISTRANT SHALL FILE A
FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(a), MAY DETERMINE.

                    The Exhibit Index is located on page [ ].

     PURSUANT TO RULE 429, THIS REGISTRATION STATEMENT RELATES TO SHARES
PREVIOUSLY REGISTERED BY THE REGISTRANT ON FORM N-1A (REGISTRATION NOS. 2-64782;
811-2932).
================================================================================



                                   FORM N-14

                   MORGAN STANLEY HIGH YIELD SECURITIES INC.
                             CROSS REFERENCE SHEET

            PURSUANT TO RULE 481(a) UNDER THE SECURITIES ACT OF 1933



PART A OF FORM N-14 ITEM NO.                PROXY STATEMENT AND PROSPECTUS HEADING
- ------------------------------   ------------------------------------------------------------
                              
1  (a) .......................   Cross Reference Sheet
   (b) .......................   Front Cover Page
   (c) .......................                                *
2  (a) .......................   Available Information -- Back Cover Page
   (b) .......................   Table of Contents
3  (a) .......................   Fee Table
   (b) .......................   Synopsis
   (c) .......................   Principal Risk Factors
4  (a) .......................   The Reorganization
   (b) .......................   The Reorganization -- Capitalization Table (Unaudited)
5  (a) .......................   Registrant's Prospectus
   (b) .......................                                *
   (c) .......................                                *
   (d) .......................                                *
   (e) .......................   Available Information
   (f) .......................   Available Information
6  (a) .......................   Front Cover Page, Introduction Synopsis, Principal Risk
                                  Factors, Comparison of Investment Objectives, Policies and
                                  Restrictions, Additional Matters Regarding Morgan Stanley
                                  High Income Advantage Trust III, Additional Information
                                  About Morgan Stanley High Income Advantage Trust III
                                  and Morgan Stanley High Yield Securities Inc., Available
                                  Information
   (b) .......................   Available Information
   (c) .......................                                *
   (d) .......................                                *
7  (a) .......................   Introduction -- General, Record Date; Share Information,
                                 Expenses of Solicitation, Proxies, Vote Required
   (b) .......................                                *
   (c) .......................   Introduction; The Reorganization -- Appraisal Rights
8  (a) .......................   The Reorganization
   (b) .......................                                *
9    .........................                                *

PART B OF FORM N-14 ITEM NO.             STATEMENT OF ADDITIONAL INFORMATION HEADING
- -------------------------------  ------------------------------------------------------------
10(a) ........................   Cover Page
  (b) ........................                                *
11   .........................   Table of Contents
12(a) ........................   Additional Information about Morgan Stanley High Yield --
                                  Securities Inc.
  (b) ........................                                *
  (c) ........................                                *
13(a) ........................                                *
  (b) ........................   Additional Information about Morgan Stanley High Income
                                  Advantage Trust III
  (c) ........................                                *
14  ..........................   Registrant's Annual Report for the fiscal year ended
                                  August 31, 2002 and Registrant's Semi-Annual Report for
                                  the six months ended February 28, 2002. Morgan Stanley
                                  High Income Advantage Trust III's Annual Report for the
                                  fiscal year ended January 31, 2002 and Semi-Annual Report
                                  for the six months ended July 31, 2002.

PART C OF FORM N-14 ITEM NO.                      OTHER INFORMATION HEADING
- -------------------------------  ------------------------------------------------------------
15  ..........................   Indemnification
16  ..........................   Exhibits
17  ..........................   Undertakings


- ----------
* Not Applicable or negative answer


                 MORGAN STANLEY HIGH INCOME ADVANTAGE TRUST III

                           1221 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10020
                                 (800) 869-NEWS

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                         TO BE HELD DECEMBER 10, 2002


TO THE SHAREHOLDERS OF MORGAN STANLEY HIGH INCOME ADVANTAGE TRUST III

     Notice is hereby given of a Special Meeting of the Shareholders of Morgan
Stanley High Income Advantage Trust III ("HIAT III"), to be held at 1221 Avenue
of the Americas, New York, New York 10020, at        A.M., Eastern time, on
December 10, 2002, and any adjournments thereof (the "Meeting"), for the
following purposes:

1.   To consider and vote upon an Agreement and Plan of Reorganization, dated
     July 25, 2002 (the "Reorganization Agreement"), between HIAT III and Morgan
     Stanley High Yield Securities Inc. ("High Yield"), pursuant to which
     substantially all of the assets of HIAT III would be combined with those of
     High Yield and shareholders of HIAT III would become shareholders of High
     Yield receiving Class D shares of High Yield with a value equal to the net
     asset value of their holdings in HIAT III (the "Reorganization"); and

2.   To act upon such other matters as may properly come before the Meeting.

     The Reorganization is more fully described in the accompanying Proxy
Statement and Prospectus and a copy of the Reorganization Agreement is attached
as Exhibit A thereto. Shareholders of record at the close of business on
September 9, 2002 are entitled to notice of, and to vote at, the Meeting. Please
read the Proxy Statement and Prospectus carefully before telling us, through
your proxy or in person, how you wish your shares to be voted. Alternatively, if
you are eligible to vote telephonically by touchtone telephone or electronically
on the Internet (as discussed in the enclosed Proxy Statement) you may do so in
lieu of attending the Meeting in person. THE BOARD OF TRUSTEES OF HIAT III
RECOMMENDS YOU VOTE IN FAVOR OF THE REORGANIZATION. WE URGE YOU TO SIGN, DATE
AND MAIL THE ENCLOSED PROXY PROMPTLY.


                                     By Order of the Board of Trustees,


                                     BARRY FINK
                                     Secretary

       , 2002

- --------------------------------------------------------------------------------
 YOU CAN HELP AVOID THE NECESSITY AND EXPENSE OF SENDING FOLLOW-UP LETTERS TO
 ENSURE A QUORUM BY PROMPTLY RETURNING THE ENCLOSED PROXY. IF YOU ARE UNABLE TO
 BE PRESENT IN PERSON, PLEASE FILL IN, SIGN AND RETURN THE ENCLOSED PROXY IN
 ORDER THAT THE NECESSARY QUORUM BE REPRESENTED AT THE MEETING. THE ENCLOSED
 ENVELOPE REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. AS DISCUSSED IN
 THE ENCLOSED PROXY STATEMENT CERTAIN SHAREHOLDERS WILL BE ABLE TO VOTE
 TELEPHONICALLY BY TOUCHTONE TELEPHONE OR ELECTRONICALLY ON THE INTERNET BY
 FOLLOWING INSTRUCTIONS ON THEIR PROXY CARDS OR ON THE ENCLOSED VOTING
 INFORMATION CARD.
- --------------------------------------------------------------------------------


                    MORGAN STANLEY HIGH YIELD SECURITIES INC.

                           1221 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10020
                                 (800) 869-NEWS

                          ACQUISITION OF THE ASSETS OF
                 MORGAN STANLEY HIGH INCOME ADVANTAGE TRUST III

                    BY AND IN EXCHANGE FOR CLASS D SHARES OF
                    MORGAN STANLEY HIGH YIELD SECURITIES INC.

     This Proxy Statement and Prospectus is being furnished to shareholders of
Morgan Stanley High Income Advantage Trust III ("HIAT III"), in connection with
an Agreement and Plan of Reorganization, dated July 25, 2002 (the
"Reorganization Agreement"), pursuant to which substantially all the assets of
HIAT III, a closed-end management investment company, will be combined with
those of Morgan Stanley High Yield Securities Inc. ("High Yield"), an open-end
management investment company, in exchange for Class D shares of High Yield (the
"Reorganization"). As a result of this transaction, shareholders of HIAT III
will become shareholders of High Yield and will receive Class D shares of High
Yield with a value equal to the net asset value of their holdings in HIAT III.
The terms and conditions of this transaction are more fully described in this
Proxy Statement and Prospectus and in the Reorganization Agreement between HIAT
III and High Yield, attached hereto as Exhibit A. The address of HIAT III is
that of High Yield set forth above. This Proxy Statement also constitutes a
Prospectus of High Yield, which is dated             , 2002, filed by High Yield
with the Securities and Exchange Commission (the "Commission") as part of its
Registration Statement on Form N-14 (the "Registration Statement").

     High Yield is an open-end diversified management investment company whose
primary investment objective is to earn a high level of current income. As a
secondary objective, the fund seeks capital appreciation but only to the extent
consistent with its primary objective. The fund seeks to achieve its objective
by investing at least 80% of its assets in fixed-income securities rated lower
than Baa by Moody's Investors Service or lower than BBB by Standard & Poor's
Corporation or in non-rated securities considered by the fund's investment
manager, Morgan Stanley Investment Advisors Inc., to be appropriate investments
for the fund.

     This Proxy Statement and Prospectus sets forth concisely information about
High Yield that shareholders of HIAT III should know before voting on the
Reorganization Agreement. A copy of the Prospectus for High Yield dated        ,
is attached as Exhibit B and incorporated herein by reference. Also enclosed and
incorporated herein by reference is High Yield's Annual Report for the fiscal
year ended August 31, 2002 and the preceding Semi-Annual Report for the six
months ended February 28, 2002. A Statement of Additional Information relating
to the Reorganization, described in this Proxy Statement and Prospectus (the
"Additional Statement"), dated September   , 2002, has been filed with the
Commission and is also incorporated herein by reference. Also incorporated
herein by reference is HIAT III's Annual Report for its fiscal year ended
January 31, 2002 and the succeeding Semi-Annual Report for the six months ended
July 31, 2002. Such documents are available without charge by calling (800)
869-NEWS (toll free).

Investors are advised to read and retain this Proxy Statement and Prospectus
for future reference.

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED ON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.

        THIS PROXY STATEMENT AND PROSPECTUS IS DATED SEPTEMBER   , 2002.



                               TABLE OF CONTENTS

                        PROXY STATEMENT AND PROSPECTUS



                                                                                             PAGE
                                                                                             ----
                                                                                          
INTRODUCTION .............................................................................     1
   General ...............................................................................     1
   Record Date; Share Information ........................................................     1
   Proxies ...............................................................................     2
   Expenses of Solicitation ..............................................................     3
   Vote Required .........................................................................     3

SYNOPSIS .................................................................................     4
   The Reorganization ....................................................................     4
   Fee Table .............................................................................     4
   Example ...............................................................................     5
   Tax Consequences of the Reorganization ................................................     6
   Reasons for the Reorganization ........................................................     6
   Comparison of HIAT III and High Yield .................................................     6

PRINCIPAL RISK FACTORS ...................................................................     8

THE REORGANIZATION .......................................................................    10
   The Board's Consideration .............................................................    10
   The Reorganization Agreement ..........................................................    11
   Tax Aspects of the Reorganization .....................................................    13
   Tax Consequences of the Reorganization to HIAT III and High Yield......................    14
   Description of Shares of High Yield and HIAT III and the Organization of the Two Funds     14
   Capitalization Table (unaudited) ......................................................    15
   Appraisal Rights ......................................................................    16

COMPARISON OF INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS ...........................    16
   Investment Objectives and Policies ....................................................    16
   Investment Restrictions ...............................................................    17

ADDITIONAL MATTERS REGARDING HIAT III ....................................................    19
   History of Public Trading of HIAT III's Shares ........................................    19
   Investment Manager ....................................................................    19
   Portfolio Management ..................................................................    20
   Expenses Borne by HIAT III ............................................................    20

ADDITIONAL INFORMATION ABOUT HIAT III AND HIGH YIELD .....................................    21
   General ...............................................................................    21
   Litigation ............................................................................    21
   Financial Information .................................................................    21
   Management ............................................................................    22
   Description of Securities and Shareholder Inquiries ...................................    22
   Custodian and Transfer Agent and Dividend Paying Agent ................................    22
   Dividends, Distributions and Taxes ....................................................    22
   Purchases and Redemptions .............................................................    22

MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE ..............................................    22

FINANCIAL STATEMENTS AND EXPERTS .........................................................    22

LEGAL MATTERS ............................................................................    23

AVAILABLE INFORMATION ....................................................................    23

OTHER BUSINESS ...........................................................................    23
Exhibit A -- Agreement and Plan of Reorganization, dated July 25, 2002, by and between
  HIAT III and High Yield
Exhibit B -- Prospectus of High Yield dated




                 MORGAN STANLEY HIGH INCOME ADVANTAGE TRUST III
                           1221 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10020
                                 (800) 869-NEWS

                              --------------------

                         PROXY STATEMENT AND PROSPECTUS

                              --------------------

                         SPECIAL MEETING OF SHAREHOLDERS
                          TO BE HELD DECEMBER 10, 2002


                                  INTRODUCTION


GENERAL

     This Proxy Statement and Prospectus is being furnished to the shareholders
of the Morgan Stanley High Income Advantage Trust III ("HIAT III"), a
closed-end diversified management investment company, in connection with the
solicitation by the Board of Trustees of HIAT III (the "Board") of proxies to
be used at the Special Meeting of Shareholders of HIAT III to be held at 1221
Avenue of the Americas, New York, New York 10020 at       A.M., Eastern time,
on December 10, 2002, and any adjournments thereof (the "Meeting"). It is
expected that the mailing of this Proxy Statement and Prospectus will be made
on or about September   , 2002.

     At the Meeting, HIAT III shareholders ("Shareholders") will consider and
vote upon an Agreement and Plan of Reorganization, dated July 25, 2002 (the
"Reorganization Agreement"), between HIAT III and Morgan Stanley High Yield
Securities Inc. ("High Yield") pursuant to which substantially all of the assets
of HIAT III will be combined with those of High Yield in exchange for Class D
shares of High Yield. As a result of this transaction, Shareholders will become
shareholders of High Yield and will receive Class D shares of High Yield equal
to the net asset value of their holdings in HIAT III on the closing date of such
transaction (the "Reorganization"). The Class D shares to be issued by High
Yield pursuant to the Reorganization (the "High Yield Shares") will be issued at
net asset value and will not be subject to any sales charge. Further information
relating to High Yield is set forth herein and in High Yield's current
Prospectus, dated ("High Yield's Prospectus"), attached to this Proxy Statement
and Prospectus and incorporated herein by reference.

     The information concerning HIAT III contained herein has been supplied by
HIAT III and the information concerning High Yield contained herein has been
supplied by High Yield.

RECORD DATE; SHARE INFORMATION

     The Board has fixed the close of business on September 9, 2002 as the
record date (the "Record Date") for the determination of the Shareholders
entitled to notice of, and to vote at, the Meeting. As of the Record Date,
there were    shares of HIAT III issued and outstanding. There are no HIAT III
shares held by HIAT III. Shareholders on the Record Date are entitled to one
vote per share on each matter submitted to a vote at the Meeting. A majority of
the outstanding shares entitled to vote, represented in person or by proxy,
will constitute a quorum at the Meeting.


                                       1


     [No persons were known to own of record or beneficially 5% or more of the
outstanding shares of HIAT III as of the Record Date although from time to
time, the number of shares held in "street name" accounts of various securities
dealers for the benefit of their clients or in centralized securities
depositories may exceed 5% of the total outstanding shares of HIAT III. As of
the Record Date, the trustees and officers of HIAT III, as a group, owned less
than 1% of the outstanding shares of HIAT III.]

     [The following persons were known to own of record or beneficially 5% or
more of the outstanding shares of a Class of High Yield as of the Record Date:
Class A --      . Class B --      . Class C --      . Class D --      . As of
the Record Date, the trustees and officers of High Yield, as a group, owned
less than 1% of the outstanding shares of High Yield.]


PROXIES

     The enclosed form of proxy, if properly executed and returned, will be
voted in accordance with the choice specified thereon. The proxy will be voted
in favor of the Reorganization Agreement unless a choice is indicated to vote
against or to abstain from voting on the Reorganization Agreement. The Board
knows of no business, other than that set forth in the Notice of Special
Meeting of Shareholders, to be presented for consideration at the Meeting.
However, the proxy confers discretionary authority upon the persons named
therein to vote as they determine on other business, not currently
contemplated, which may come before the Meeting. Abstentions and, if
applicable, broker "non-votes" will not count as votes in favor of the
Reorganization Agreement, and broker "non-votes" will not be deemed to be
present at the meeting for purposes of determining whether the Reorganization
Agreement has been approved. Broker "non-votes" are shares held in street name
for which the broker indicates that instructions have not been received from
the beneficial owners or other persons entitled to vote and for which the
broker does not have discretionary voting authority. If a Shareholder executes
and returns a proxy but fails to indicate how the votes should be cast, the
proxy will be voted in favor of the Reorganization Agreement. The proxy may be
revoked at any time prior to the voting thereof by: (i) delivering written
notice of revocation to the Secretary of HIAT III at 1221 Avenue of the
Americas, New York, New York 10020; (ii) attending the Meeting and voting in
person; or (iii) completing and returning a new proxy (whether by mail or, as
discussed below, by touchtone telephone or the Internet) (if returned and
received in time to be voted). Attendance at the Meeting will not in and of
itself revoke a proxy.

     In the event that the necessary quorum to transact business or the vote
required to approve or reject the Reorganization Agreement is not obtained at
the Meeting, the persons named as proxies may propose one or more adjournments
of the Meeting to permit further solicitation of proxies. Any such adjournment
will require the affirmative vote of the holders of a majority of shares of
HIAT III present in person or by proxy at the Meeting. The persons named as
proxies will vote in favor of such adjournment those proxies which they are
entitled to vote in favor of the Reorganization Agreement and will vote against
any such adjournment those proxies required to be voted against the
Reorganization Agreement.

     Shareholders will be able to vote their shares by touchtone telephone or
by Internet by following the instructions on the proxy card or on the Voting
Information Card accompanying this Proxy Statement and Prospectus. To vote by
Internet or by telephone, Shareholders can access the website or call the
toll-free number listed on the proxy card or noted in the enclosed voting
instructions. To vote by Internet or by telephone, Shareholders will need the
"control number" that appears on the proxy card.



                                       2


     In certain instances, Morgan Stanley Trust ("MS Trust"), an affiliate of
Morgan Stanley Investment Advisors Inc. ("MS Advisors" or the "Investment
Manager"), Alamo Direct Mail Services Inc. ("Alamo") or D.F. King & Co. Inc.
("D.F. King") may call Shareholders to ask if they would be willing to have
their votes recorded by telephone. The telephone voting procedure is designed
to authenticate Shareholders' identities, to allow Shareholders to authorize
the voting of their shares in accordance with their instructions and to confirm
that their instructions have been recorded properly. No recommendation will be
made as to how a Shareholder should vote on the Reorganization Agreement other
than to refer to the recommendation of the Board. HIAT III has been advised by
counsel that these procedures are consistent with the requirements of
applicable law. Shareholders voting by telephone in this manner will be asked
for their social security number or other identifying information and will be
given an opportunity to authorize proxies to vote their shares in accordance
with their instructions. To ensure that the Shareholders' instructions have
been recorded correctly, they will receive a confirmation of their instructions
in the mail. A special toll-free number set forth in the confirmation will be
available in case the information contained in the confirmation is incorrect.
Although a Shareholder's vote may be taken by telephone, each Shareholder will
receive a copy of this Proxy Statement and Prospectus and may vote by mail
using the enclosed proxy card or by touchtone telephone or the Internet as set
forth above. The last proxy vote received in time to be voted, whether by proxy
card, touchtone telephone or Internet, will be the last vote that is counted
and will revoke all previous votes by the Shareholder.

EXPENSES OF SOLICITATION

     The expenses of this solicitation, including the cost of preparing and
mailing this Proxy Statement and Prospectus, are expected to approximate
$        and will be borne by HIAT III. HIAT III and High Yield will bear all
of their respective other expenses associated with the Reorganization. In
addition to the solicitation of proxies by mail, proxies may be solicited by
officers of HIAT III, and officers and regular employees of MS Advisors and MS
Trust, Morgan Stanley Services Company Inc. ("MS Services") and/or Morgan
Stanley DW Inc. ("Morgan Stanley DW"), affiliates of MS Advisors, personally or
by mail, telephone, telegraph or otherwise, without compensation therefor. In
addition, HIAT III may retain D.F. King as proxy solicitor, at a cost to HIAT
III of approximately $        plus reimbursement of reasonable expenses. In
addition, HIAT III will employ Alamo to make telephone calls to Shareholders to
remind them to vote. Brokerage houses, banks and other fiduciaries may be
requested to forward soliciting material to the beneficial owners of shares and
to obtain authorization for the execution of proxies. With respect to the
solicitation of a telephonic vote by D.F. King, additional expenses would
include [$7.00] per telephone vote transacted, [$3.00] per outbound telephone
contact and costs relating to obtaining Shareholders' telephone numbers, and,
with respect to Alamo, expenses would be approximately $1.00 per outbound
telephone contact, which would be borne by HIAT III.

VOTE REQUIRED

     Approval of the Reorganization Agreement by the Shareholders requires the
vote of a majority of the outstanding shares of HIAT III which means an
affirmative vote of the lesser of (1) a majority of the outstanding shares of
HIAT III, or (2) 67% or more of the shares of HIAT III represented at the
Meeting if more than 50% of the outstanding shares of HIAT III are present or
represented by proxy. If the Reorganization Agreement is not approved by
Shareholders, HIAT III will continue in existence and the Board will consider
alternative actions.


                                       3


                                    SYNOPSIS

     The following is a synopsis of certain information contained in or
incorporated by reference in this Proxy Statement and Prospectus. This synopsis
is only a summary and is qualified in its entirety by the more detailed
information contained or incorporated by reference in this Proxy Statement and
Prospectus and the Reorganization Agreement. Shareholders should carefully
review this Proxy Statement and Prospectus and Reorganization Agreement in
their entirety and, in particular, High Yield's Prospectus, which is attached
to this Proxy Statement and incorporated herein by reference.

THE REORGANIZATION

     The Reorganization Agreement provides for the transfer of substantially
all the assets of HIAT III, subject to stated liabilities, to High Yield in
exchange for the High Yield Shares. The aggregate net asset value of the High
Yield Shares issued in the exchange will equal the aggregate value of the net
assets of HIAT III received by High Yield. On or after the closing date of the
Reorganization, currently anticipated to be December  , 2002, (the "Closing
Date"), HIAT III will distribute the High Yield Shares received by HIAT III to
Shareholders as of the Valuation Date (as defined below under "The
Reorganization Agreement") in complete liquidation of HIAT III and HIAT III
will thereafter be de-registered as an investment company under the Investment
Company Act of 1940, as amended (the "1940 Act") and dissolved under
Massachusetts law. As a result of the Reorganization, each Shareholder will
receive that number of full and fractional High Yield Shares equal in value to
such Shareholder's pro rata interest in the net assets of HIAT III transferred
to High Yield. Accordingly, as a result of the Reorganization, each Shareholder
of HIAT III will become a holder of Class D shares of High Yield. Shareholders
holding their shares of HIAT III in certificate form will be asked to surrender
their certificates in connection with the Reorganization. Shareholders who do
not surrender their certificates prior to the Closing Date will still receive
their shares of High Yield; however, such Shareholders will not be able to
redeem, transfer or exchange the High Yield Shares received until the old
certificates have been surrendered. The Board has determined that the interests
of Shareholders will not be diluted as a result of the Reorganization.

     FOR THE REASONS SET FORTH BELOW UNDER "THE REORGANIZATION -- THE BOARD'S
CONSIDERATION," THE BOARD, INCLUDING THE TRUSTEES WHO ARE NOT "INTERESTED
PERSONS" OF HIAT III ("INDEPENDENT TRUSTEES"), AS THAT TERM IS DEFINED IN THE
1940 ACT, HAS CONCLUDED THAT THE REORGANIZATION IS IN THE BEST INTERESTS OF
HIAT III AND ITS SHAREHOLDERS AND RECOMMENDS APPROVAL OF THE REORGANIZATION
AGREEMENT.

FEE TABLE

     HIAT III and High Yield each pay a variety of expenses for management of
their assets, distribution of their shares (High Yield) and other services, and
those expenses are reflected in the net asset value per share of each fund.
Class D shares of High Yield do not pay distribution-related fees; however, the
other three Classes offered by High Yield pay fees for the distribution of
their shares. The following table briefly describes the fees and expenses that
a shareholder of HIAT III and a Class D shareholder of High Yield may pay if
they buy and hold shares of each respective fund. These expenses are deducted
from each respective fund's assets and are based on expenses paid by HIAT III
for its fiscal year ended January 31, 2002 and on expenses paid by Class D
shares of High Yield for its fiscal year ended August 31, 2001. The table also
sets forth pro forma fees for the surviving combined fund (High Yield)
reflecting what the fee schedule would have been on August 31, 2002, if the
Reorganization had been consummated twelve (12) months prior to that date and
assuming Class D fees and expenses.


                                       4


Shareholder Fees



                                                                                       PRO FORMA
                                                                                        COMBINED
                                                                        HIGH YIELD     HIGH YIELD
                                                           HIAT III      (CLASS D)     (CLASS D)
                                                          ----------   ------------   -----------
                                                                             
MAXIMUM SALES CHARGE (LOAD) IMPOSED ON PURCHASES
 (AS A PERCENTAGE OF OFFERING PRICE) ..................     none(1)      none           none
MAXIMUM SALES CHARGE (LOAD) IMPOSED ON REINVESTED
 DIVIDENDS ............................................     none         none           none
MAXIMUM CONTINGENT DEFERRED SALES CHARGE (LOAD) (AS A
 PERCENTAGE OF THE LESSER OF ORIGINAL PURCHASE PRICE OR
 REDEMPTION PROCEEDS) .................................     none         none           none
REDEMPTION FEES .......................................     none(1)      none           none
EXCHANGE FEE ..........................................     none         none           none


- ----------
(1)   Purchases and sales of HIAT III are made on the New York Stock Exchange
      or otherwise through brokers and dealers and are generally subject to
      brokerage commissions which vary. Customarily, such commissions may
      depend upon the size of the transaction, the broker selected and other
      factors.


Annual Fund Operating Expenses (expenses that are deducted from fund assets)




                                                                                    PRO FORMA
                                                                                     COMBINED
                                                                    HIGH YIELD      HIGH YIELD
                                                     HIAT III        (CLASS D)      (CLASS D)
                                                  -------------   --------------   -----------
                                                                          
MANAGEMENT FEES ...............................        0.75%
DISTRIBUTION AND SERVICE (12b-1) FEES .........        none
OTHER EXPENSES ................................        1.04%
TOTAL ANNUAL FUND OPERATING EXPENSES ..........        1.79%


EXAMPLE

     To attempt to show the effect of these expenses on an investment over
time, the hypotheticals shown below have been created. The Example assumes that
an investor invests $10,000 in either HIAT III or Class D shares of High Yield
or the new combined fund (High Yield), that the investment has a 5% return each
year and that the operating expenses for each fund remain the same (as set
forth in the chart above). Although a shareholder's actual costs may be higher
or lower, the tables below show a shareholder's costs at the end of each period
based on these assumptions.

     Expenses Over Time:




                                                      1 YEAR     3 YEARS     5 YEARS     10 YEARS
                                                     --------   ---------   ---------   ---------
                                                                            
HIAT III .........................................     $182        $563        $970      $2,105
HIGH YIELD (CLASS D) .............................     $           $           $         $
PRO FORMA COMBINED-HIGH YIELD (CLASS D) ..........     $           $           $         $


     The purpose of the foregoing fee table is to assist the investor or
shareholder in understanding the various costs and expenses that an investor or
shareholder in the fund will bear directly or indirectly. For a more


                                       5


complete description of these costs and expenses, see "Comparison of HIAT III
and High Yield -- Investment Management and Administration Fees, Other
Significant Fees, and Purchases, Exchanges and Redemptions" below.

TAX CONSEQUENCES OF THE REORGANIZATION

     As a condition to the Reorganization, HIAT III and High Yield, will
receive an opinion of Mayer, Brown. Rowe & Maw to the effect that the
Reorganization will constitute a tax-free reorganization for federal income tax
purposes, and that no gain or loss will be recognized by HIAT III or the
shareholders of HIAT III for federal income tax purposes as a result of the
transactions included in the Reorganization. For further information about the
tax consequences of the Reorganization, see "The Reorganization -- Tax Aspects
of the Reorganization" below.

REASONS FOR THE REORGANIZATION

     The Board of Trustees has determined that the Reorganization is in the
best interests of HIAT III shareholders. In particular, the Reorganization
would afford HIAT III shareholders the opportunity for a continued interest in
a fund which has investment objectives similar to that of HIAT III, and which
is substantially larger and has a significantly lower expense ratio than HIAT
III. The Board of Trustees believes that other potential benefits could be
realized as well. For further information on the reasons for the Board's
decision, see "The Reorganization -- The Board's Consideration," set forth
below.

COMPARISON OF HIAT III AND HIGH YIELD

     INVESTMENT OBJECTIVES AND POLICIES. HIAT III and High Yield have similar
investment objectives. As their primary investment objective, HIAT III and High
Yield seek to earn a high level of current income. As their secondary
investment objective, HIAT III and High Yield seek capital appreciation but
only when consistent with their primary investment objective. The respective
investment objectives of HIAT III and High Yield are fundamental and may not be
changed without respective shareholder approval.

     High Yield seeks to achieve its primary investment objective by investing
at least 80% of its assets in fixed-income securities rated lower than Baa by
Moody's Investors Service ("Moody's") or lower than BBB by Standard & Poor's
Corporation ("S&P") or in non-rated securities considered by the fund's
investment manager, MS Advisors, to be appropriate investments for the fund.
Securities rated below Baa or BBB are commonly known as "junk bonds." Likewise,
HIAT III seeks to achieve its primary investment objective by investing at
least 80% of its assets in such lower rated and unrated securities.

     Other than as set forth above, the investment policies of HIAT III and
High Yield are substantially similar; the principal differences between them
are described under "Comparison of Investment Objectives, Policies and
Restrictions" below.

     INVESTMENT MANAGEMENT FEES. Pursuant to an Investment Management
Agreement, HIAT III's investment manager, MS Advisors, provides administrative
services and manages HIAT III's assets, including placing orders for the
purchase and sale of portfolio securities. MS Advisors obtains and evaluates
such information and advice relating to the economy, securities markets and
securities as it deems necessary or useful to manage the assets of HIAT III in
a manner consistent with its objective and policies. As compensation for
advisory services provided to HIAT III, HIAT III pays MS Advisors monthly
compensation calculated weekly by applying the following annual rates to HIAT
III's weekly net assets: 0.75% of the portion of the average weekly assets not
exceeding $250 million; 0.60% of the portion of the average weekly assets
exceeding $250 million and not exceeding $500 million; 0.50% of the portion of
the average weekly assets exceeding $500 million and not


                                       6


exceeding $750 million; 0.40% of the portion of the average weekly assets
exceeding $750 million and not exceeding $1 billion; and 0.30% of the portion
of the average weekly assets exceeding $1 billion. The services provided to
HIAT III under the Investment Management Agreement are comparable to those
provided by MS Advisors to High Yield under its Investment Management Agreement
with MS Advisors. Pursuant to that agreement, High Yield pays MS Advisors,
monthly compensation calculated daily by applying the following annual rates to
the net assets of the fund determined as of the close of each business day:
0.50% of the portion of the daily net assets not exceeding $500 million; 0.425%
of the portion of the daily net assets exceeding $500 million but not exceeding
$750 million; 0.375% of the portion of the daily net assets exceeding $750
million but not exceeding $1 billion; 0.35% of the portion of the daily net
assets exceeding $1 billion but not exceeding $2 billion; and 0.325% of the
portion of the daily net assets exceeding $2 billion but not exceeding $3
billion; and 0.30% of the portion of the daily net assets exceeding $3 billion.
Each class of shares of High Yield is subject to the same management fee rates.

     HIAT III is a closed-end investment company and therefore does not have a
distribution plan pursuant to Rule 12b-1 under the 1940 Act ("12b-1 Plan").
High Yield has adopted a 12b-1 Plan for the distribution of its shares,
however, there are no 12b-1 fees applicable to High Yield's Class D shares. For
information relating to the 12b-1 fees applicable to High Yield's Class A, B
and C shares, see the section entitled "Share Class Arrangements" in High
Yield's Prospectus, attached hereto.

     OTHER SIGNIFICANT FEES. Both HIAT III and High Yield pay additional fees
in connection with their operations, including legal, auditing, transfer agent,
trustees fees and custodial fees, registration fees in the case of High Yield
and, in the case of HIAT III, listing fees for the listing of its shares on the
New York Stock Exchange ("NYSE"). See "Synopsis -- Fee Table" above for the
percentage of average net assets represented by such "Other Expenses."

     PURCHASES, EXCHANGES AND REDEMPTIONS. Class D shares of High Yield are
currently offered at net asset value and such shares may be redeemed for cash
without redemption or other charge at the net asset value per share next
determined. Normally, Class D shares of High Yield are offered only to a
limited group of investors. Subsequent to the Reorganization, all HIAT III
shares will be designated Class D shares of High Yield. However, additional
investments (except for reinvestment of distributions received on shares
acquired as a result of the Reorganization) in Class D shares of High Yield (or
in Class D shares of any other Morgan Stanley Fund) by Shareholders holding
such shares may only be made if those Shareholders are otherwise eligible to
purchase Class D shares. Class D shares acquired in the Reorganization may,
however, be exchanged for Class D shares of another Morgan Stanley Fund
pursuant to Class D's exchange privileges discussed below.

     High Yield offers four classes of shares (Class A, Class B, Class C and
Class D) which differ principally in terms of sales charges, distribution and
service fees, and ongoing expenses. For further information relating to each of
the classes of High Yield's shares, see the section entitled "Share Class
Arrangements" in High Yield's Prospectus attached hereto.

     Class D shares of High Yield that are held with a broker-dealer that has
entered into a selected dealer agreement with High Yield's distributor (or
shares held directly with High Yield's transfer agent) may be exchanged for
Class D shares of any other Morgan Stanley Fund that offers its shares in more
than one class, or any of Morgan Stanley Limited Duration U.S. Treasury Trust,
Morgan Stanley Limited Term Municipal Trust, Morgan Stanley Limited Duration
Fund and the five Morgan Stanley Funds that are money market funds (the
foregoing funds are collectively referred to as the "Exchange Funds"), without
the imposition of an exchange fee. Exchange privileges will not be available to
Shareholders who hold High Yield shares with broker-dealers that have not
entered into a selected dealer agreement with High Yield's distributor.


                                       7


     High Yield shareholders may redeem their High Yield shares on any business
day at the net asset value of such shares. High Yield provides telephone
exchange privileges to its shareholders. For greater details relating to
exchange privileges applicable to High Yield, see the section entitled "How to
Exchange Shares" in High Yield's Prospectus.

     High Yield may redeem involuntarily, at net asset value, most accounts
valued at less than $100. However, High Yield offers a reinstatement privilege
whereby a shareholder who has not previously exercised such privilege whose
shares have been redeemed may, within thirty-five days after the date of
redemption, reinstate any portion or all of the proceeds thereof in shares of
the same class from which such shares were redeemed.

     Unlike High Yield, HIAT III is a closed-end investment company and does
not redeem its shares or engage in the continuous offering of new shares in the
same manner as an open-end investment company and does not offer to exchange
its shares for shares of other investment companies. Shares of HIAT III are
only purchased and sold on the NYSE.

     DIVIDENDS. Both High Yield and HIAT III declare and pay dividends from net
investment income monthly. Both High Yield and HIAT III generally distribute
all of their net realized short-term and long-term capital gains at least once
per year. Each, however, may determine either to distribute or to retain all or
part of any net long-term capital gains in any year for reinvestment. With
respect to High Yield, dividends and capital gains distributions are
automatically reinvested in additional shares at net asset value unless the
shareholder elects to receive cash. All persons who become registered holders
of HIAT III are automatically included in HIAT III's automatic dividend
reinvestment plan unless they elect to receive distributions in cash. Under
that plan, Shareholders' dividends are automatically reinvested in shares of
HIAT III at the then current market price of such shares. For more information
on HIAT III's dividend reinvestment plan, see Exhibit C to this Proxy Statement
and Prospectus.

                             PRINCIPAL RISK FACTORS

     The share price or net asset value of High Yield and the market price per
share of HIAT III on the NYSE as well as HIAT III's net asset value will
fluctuate with changes in the market value of their respective portfolio
securities. The market value of the funds' portfolio securities will increase
or decrease due to a variety of economic, market and political factors,
including changes in prevailing interest rates, which cannot be predicted. The
principal risks of an investment in either High Yield or HIAT III are the risks
associated with their respective fixed-income securities which primarily
consist of high yield, high risk securities commonly known as "junk bonds."
Fixed income securities are subject to two types of risks: credit risk and
interest rate risk.

     Credit risk refers to the possibility that the issuer of a security will
be unable or unwilling to make interest payments and/or repay the principal on
its debt. Interest rate risk refers to fluctuations in the value of a
fixed-income security resulting from changes in the general level of interest
rates. When the general level of interest rates goes up, the prices of most
fixed-income securities go down. When the general level of interest rates goes
down, the prices of most fixed-income securities go up.

     Junk bonds are subject to greater risk of loss of income and principal
than higher rated securities. The prices of junk bonds are likely to be more
sensitive to adverse economic changes or individual corporate developments than
higher rated securities. During an economic downturn or substantial period of
rising interest rates, junk bond issuers and, in particular, highly leveraged
issuers may experience financial stress that would adversely affect their
ability to service their principal and interest payment obligations, to meet
their projected business goals or to obtain additional financing. In the event
of a default, the funds may incur additional expenses to seek recovery. The
secondary market for junk bonds may be less liquid than the markets for higher


                                       8


quality securities and, as such, may have an adverse effect on the market
prices of certain securities. The Rule 144A securities could have the effect of
increasing the level of fund illiquidity to the extent the funds may be unable
to find qualified institutional buyers interested in purchasing the securities.
The illiquidity of the market may also adversely affect the ability of the
funds' Directors/Trustees to arrive at a fair value for certain junk bonds at
certain times and could make it difficult for the fund to sell certain
securities. In addition, periods of economic uncertainty and change probably
would result in an increased volatility of market prices of high yield
securities and a corresponding volatility in the funds' net asset value.

     In addition to junk bonds, both High Yield and HIAT III invest up to 20%
of their assets in investment grade fixed-income securities. Some of these
securities have speculative characteristics.

     Both High Yield and HIAT III may invest up to 20% of their total assets in
common stocks. In general stock values fluctuate in response to activities
specific to the company as well as general market, economic and political
conditions. These prices can fluctuate widely.

     Each fund may invest up to 20% of its assets in foreign securities
including fixed income securities issued by foreign governments and other
foreign issuers (including American depositary receipts or other similar
securities convertible into securities of foreign issuers) but not more than
10% of its total assets in these securities may be denominated in foreign
currencies. The funds' investments in foreign securities involve risks that are
in addition to the risks associated with domestic securities. One additional
risk is currency risk. In particular, the price of securities could be
adversely affected by changes in the exchange rate between U.S. dollars and a
foreign market's local currency. Foreign securities (including depositary
receipts) also have risks related to economic and political developments
abroad, including any effects of foreign social, economic or political
instability. Foreign companies, in general, are not subject to the regulatory
requirements of U.S. companies and, as such, there may be less publicly
available information about these companies. Moreover, foreign accounting,
auditing and financial reporting standards generally are different from those
applicable to U.S. companies. Finally, in the event of a default of any foreign
debt obligations, it may be more difficult for the funds to obtain or enforce a
judgment against the issuers of the securities. Securities of foreign issuers
may be less liquid than comparable securities of U.S. issuers and, as such,
their price changes may be more volatile. Furthermore, foreign exchanges and
broker-dealers are generally subject to less government and exchange scrutiny
and regulation than their U.S. counterparts. In addition, differences in
clearance and settlement procedures in foreign markets may occasion delays in
settlements of the funds' trades effected in those markets.

     The funds may invest in put and call options and futures on their
portfolio securities, stock indexes and U.S. and foreign currencies. The funds
may use options and futures to protect against a decline in the funds'
securities or in currency prices or an increase in prices of securities or
currencies that may be purchased, as well as to protect against interest rate
changes. If the funds invest in options and/or futures, their participation in
these markets would subject the funds' portfolios to certain risks. If the
Investment Manager's predictions of movements in the direction of the stock or
currency markets are inaccurate, the adverse consequences to the funds (e.g., a
reduction in the funds' net asset value or a reduction in the amount of income
available for distribution) may leave the funds in a worse position than if
these strategies were not used. Other risks inherent in the use of options and
futures include, for example, the possible imperfect correlation between the
price of options and futures contracts and movements in the prices of the
securities or currencies being hedged, and the possible absence of a liquid
secondary market for any particular instrument. Certain options may be
over-the-counter options which are options negotiated with dealers; there is no
secondary market for these investments.

     The foregoing discussion is a summary of the principal risk factors of
HIAT III and High Yield. For a more complete discussion of the risks of High
Yield, see "Principal Risks" and "Additional Risk Information" in High Yield's
Prospectus attached hereto and incorporated herein by reference.


                                       9


                              THE REORGANIZATION

THE BOARD'S CONSIDERATION

     At a meeting held on July 25, 2002, the Board, including all of the
Independent Trustees, unanimously approved the Reorganization Agreement and
determined to recommend that HIAT III Shareholders approve the Reorganization
Agreement. In reaching this decision, the Board made an extensive inquiry into
a number of factors, particularly the comparative expense ratios of HIAT III
and the Class D shares of High Yield, and the effect on Shareholders of
"open-ending" HIAT III including, for example, the ability to realize the net
asset value of their shares and the potential impact of redemptions on
portfolio management. The Board also considered other factors, including, but
not limited to: comparable investment objectives, policies, restrictions and
portfolios of HIAT III and High Yield; the terms and conditions of the
Reorganization which would affect the price of shares to be issued in the
Reorganization; the tax-free nature of the Reorganization; and any direct or
indirect costs to be incurred by HIAT III and High Yield in connection with the
Reorganization.

     In recommending the Reorganization to Shareholders, the Board of HIAT III
considered the following:

     1. The expense ratio for the Class D shares of High Yield (0.62% for its
fiscal year end August 31, 2001; _____ for its fiscal year end August 31, 2002)
is substantially lower than the expense ratio for HIAT III (1.79% for its fiscal
year end January 31, 2002). This is partially attributable to the fact that High
Yield's investment management fee rate (0.43% of its net assets) was appreciably
lower for its fiscal year end August 31, 2001 ( _____ for its fiscal year end
August 31, 2002) than HIAT III's investment management fee rate (0.75%) paid for
the twelve months ended August 31, 2001. Furthermore, the rate of other expenses
paid by Class D shareholders of High Yield (0.19% of average daily net assets)
for its fiscal year end August 31, 2001 ( _____ for its fiscal year end
August 31, 2002) was significantly lower than the rate of other expenses paid by
HIAT III (1.04% of average daily net assets) for the its last fiscal year. In
addition, to the extent that the Reorganization would result in Shareholders
becoming shareholders of a combined larger fund, further economies of scale
could be achieved since various fixed expenses (e.g., auditing and legal) can be
spread over a larger number of shares. Therefore, once the Reorganization is
consummated, the expenses which would be borne by Class D shareholders of the
"combined fund" are expected to be significantly lower on a percentage basis
than the expenses per share of HIAT III.

     2. HIAT III, has generally traded at a premium, but recently has traded at
a discount to its net asset value and is, as of the date of this Proxy
Statement and Prospectus, trading at a discount. To the extent that HIAT III is
trading at a discount on the date of the Reorganization, the Reorganization at
net asset value would benefit the Shareholders of HIAT III by immediately
eliminating any such discount.

     3. Shareholders of HIAT III would have a continued participation in a
portfolio of lower-rated and unrated fixed-income securities.

     4. HIAT III does not currently satisfy certain NYSE listing standards.
Therefore, absent the Reorganization, there is a risk that the shares could
become ineligible for trading on the NYSE.

     5. Shareholders would have the ability to exchange their Class D shares of
High Yield acquired as a result of the Reorganization into Class D shares of
any Morgan Stanley Multi-Class Fund without the imposition of any sales charge
or additional fees. The Board noted, however, that exchange privileges will not
be available to Shareholders who hold High Yield shares with broker-dealers
that have not entered into a selected dealer agreement with High Yield's
distributor. HIAT III, being a closed-end fund, does not offer any exchange
privileges.

     6. The Reorganization is intended to qualify as a tax-free reorganization
for federal income tax purposes, pursuant to which no gain or loss will be
recognized by HIAT III or its Shareholders for Federal income tax purposes as a
result of transactions included in the Reorganization.


                                       10


     7. The Board recognized that if at the time of the Reorganization, HIAT
III is trading at a premium to its net asset value, HIAT III shareholders would
receive High Yield shares with a value less than the amount which could have
been realized through a sale of shares in the open market. See "Additional
Matters Regarding HIAT III -- History of Public Trading of HIAT III's Shares"
below. The Board concluded, however, that the potential benefits of the
Reorganization outweighed the potential risk of the elimination of any premium
at which the shares trade on the date of the Reorganization.

     The Board of Directors of High Yield, including a majority of the
Independent Directors of High Yield, also have determined that the
Reorganization is in the best interests of High Yield and its shareholders and
that the interests of existing shareholders of High Yield will not be diluted
as a result thereof. The transaction will enable High Yield to acquire
investment securities which are consistent with High Yield's investment
objective, without the costs attendant to the purchase of such securities in
the market. Also, the addition of HIAT III's assets to High Yield's portfolio
may result in a further reduction in High Yield's investment management fee
resulting from the addition of more assets at a lower breakpoint rate in the
management fee schedule and may result also in the economies of scale described
above. The Board also considered any potential liabilities associated with the
pending litigation against HIAT III. See "Additional Information About HIAT III
And High Yield -- Litigation." The Board noted in this regard that in connection
with the Reorganization, the Investment Manager has agreed to indemnify High
Yield against any and all claims, costs and expenses associated with the HIAT
III litigation. Finally, the Board considered that even if the benefits
enumerated above are not realized, the costs to the Fund are sufficiently minor
to warrant taking the opportunity to realize those benefits.

THE REORGANIZATION AGREEMENT

     The terms and conditions under which the Reorganization would be
consummated, as summarized below, are set forth in the Reorganization
Agreement. This summary is qualified in its entirety by reference to the
Reorganization Agreement, a copy of which is attached as Exhibit A to this
Proxy Statement and Prospectus.

     The Reorganization Agreement provides that (i) HIAT III will transfer all
of its assets, including portfolio securities, cash (other than cash amounts
retained by HIAT III as a "Cash Reserve" in the amount sufficient to discharge
its liabilities not discharged prior to the Valuation Date (as defined below)
and for expenses of the dissolution), cash equivalents and receivables to High
Yield on the Closing Date in exchange for the assumption by High Yield of
stated liabilities of HIAT III, including all expenses, costs, charges and
reserves, as reflected on an unaudited statement of assets and liabilities of
HIAT III prepared by the Treasurer of HIAT III, as of the Valuation Date (as
defined below) in accordance with generally accepted accounting principles
consistently applied from the prior audited period, and the delivery of the
High Yield Shares; (ii) such High Yield Shares would be distributed to
Shareholders on the Closing Date or as soon as practicable thereafter; (iii)
HIAT III would be de-registered as an investment company under the 1940 Act;
(iv) HIAT III would be dissolved as a Massachusetts business trust; and (v) the
outstanding shares of HIAT III would be canceled.

     The number of High Yield Shares to be delivered to HIAT III will be
determined by dividing the aggregate net asset value of the shares of HIAT III
acquired by High Yield by the net asset value per share of the Class D shares
of High Yield; these values will be calculated as of the close of business of
the New York Stock Exchange on the third business day following the receipt of
the requisite approval by Shareholders of the Reorganization Agreement or at
such other time as HIAT III and High Yield may agree (the "Valuation Date"). As
an illustration, assume that on the Valuation Date, the shares of HIAT III had
an aggregate net asset value (not including any Cash Reserve of HIAT III) of
$100,000. If the net asset value per Class D share of High Yield were $10 per
share at the close of business on the Valuation Date, the number of Class D
shares of High Yield to be issued would be 10,000 ($100,000 - $10). These
10,000 Class D shares of High Yield would be distributed to the former
shareholders of HIAT III. This example is given for illustration purposes only
and does not bear any relationship to the dollar amounts or shares expected to
be involved in the Reorganization.


                                       11


     On the Closing Date or as soon as practicable thereafter, HIAT III will
distribute pro rata to its Shareholders of record as of the close of business
on the Valuation Date, the High Yield Shares it receives. Each Shareholder will
receive Class D shares of High Yield that corresponds to the shares of HIAT III
currently held by that Shareholder. High Yield will cause its transfer agent to
credit and confirm an appropriate number of High Yield Shares to each
Shareholder. Certificates for High Yield Shares will be issued only upon
written request of a Shareholder and only for whole shares, with fractional
shares credited to the name of the Shareholder on the books of High Yield.
Shareholders who wish to receive certificates representing their High Yield
Shares must, after receipt of their confirmations, make a written request to
High Yield's transfer agent Morgan Stanley Trust, Harborside Financial Center,
Jersey City, New Jersey 07311. Shareholders of HIAT III holding their shares in
certificate form will be asked to surrender such certificates in connection
with the Reorganization. Shareholders who do not surrender their certificates
prior to the Closing Date will still receive their shares of High Yield;
however, such Shareholders will not be able to redeem, transfer or exchange the
High Yield Shares received until the old certificates have been surrendered.

     The Closing Date will be the next business day following the Valuation
Date. The consummation of the Reorganization is contingent upon the approval of
the Reorganization by the Shareholders and the receipt of the other agreements,
opinions and certificates set forth in Sections 6, 7 and 8 of the Reorganization
Agreement (attached hereto as Exhibit A) and the occurrence of the events
described in those Sections, certain of which may be waived by HIAT III or High
Yield. The Reorganization Agreement may be amended in any mutually agreeable
manner. All expenses of this solicitation, including the cost of preparing and
mailing this Proxy Statement and Prospectus, will be borne, as set forth in this
Proxy Statement and Prospectus under "Expenses of Solicitation," by HIAT III,
which expenses are expected to approximate $ . HIAT III and High Yield will bear
all of their respective other expenses associated with the Reorganization.


     The Reorganization Agreement may be terminated and the Reorganization
abandoned at any time, before or after approval by Shareholders or by mutual
consent of HIAT III, and High Yield. In addition, either party may terminate
the Reorganization Agreement upon the occurrence of a material breach of the
Reorganization Agreement by the other party or if, by March 31, 2003, any
condition set forth in the Reorganization Agreement has not been fulfilled or
waived by the party entitled to its benefits.

     Under the Reorganization Agreement, within one year after the Closing
Date, HIAT III shall: either pay or make provision for all of its liabilities
and distribute any remaining amount of the Cash Reserve (after paying or making
provision for such liabilities and the estimated cost of making the
distribution) to former Shareholders of HIAT III that received High Yield
Shares. HIAT III shall be de-registered as an investment company under the 1940
Act, dissolved under Massachusetts law promptly following the distributions of
shares of High Yield to Shareholders of record of HIAT III.

     The effect of the Reorganization is that Shareholders who vote their
shares in favor of the Reorganization Agreement are electing to sell their
shares of HIAT III (at net asset value on the Valuation Date calculated after
subtracting any Cash Reserve) and reinvest the proceeds in High Yield Shares at
net asset value and without recognition of taxable gain or loss for Federal
income tax purposes. See "Tax Aspects of the Reorganization" below. As noted in
"Tax Aspects of the Reorganization" below, if HIAT III recognizes net gain from
the sale of securities prior to the Closing Date, such gain, to the extent not
offset by capital loss carryforwards, will be distributed to Shareholders prior
to the Closing Date and will be taxable to Shareholders as capital gain.

     Prior to the NYSE's suspension of trading of HIAT III's shares, which is
currently expected to occur on the next business day after the Meeting
(assuming Shareholders of HIAT III approve the Reorganization Agreement at the
Meeting), Shareholders will continue to be able to sell their shares of HIAT
III on the NYSE


                                       12


at the market price of the shares on the NYSE when the sell order is placed.
Following the suspension of trading, Shareholders will no longer be able to
sell their HIAT III shares on the NYSE. On or after the Closing Date, however,
Shareholders will be able to redeem their newly-issued shares of High Yield.

TAX ASPECTS OF THE REORGANIZATION

     At least one but not more than 20 business days prior to the Valuation
Date, HIAT III will declare and pay a dividend or dividends which, together
with all previous such dividends, will have the effect of distributing to
Shareholders all of HIAT III's investment company taxable income for all
periods since the inception of HIAT III through and including the Valuation
Date (computed without regard to any dividends paid deduction), and all of HIAT
III's net capital gain, if any, realized in such periods (after reduction for
any capital loss carryforward).

     The Reorganization is intended to qualify for Federal income tax purposes
as a tax-free reorganization under Section 368(a)(1)(C) of the Internal Revenue
Code of 1986, as amended (the "Code").

     As a condition to the Reorganization, HIAT III and High Yield will receive
an opinion of Mayer, Brown, Rowe & Maw to the effect that, based on certain
assumptions, facts, the terms of the Reorganization Agreement and
representations set forth in the Reorganization Agreement or otherwise provided
by HIAT III and High Yield (including a representation to the effect that High
Yield has no plan or intention to sell or otherwise dispose of more than fifty
percent of the assets of HIAT III acquired in the Reorganization except for
dispositions made in the ordinary course of business):

     1. The transfer of HIAT III's assets in exchange for the High Yield Shares
and the assumption by High Yield of certain stated liabilities of HIAT III
followed by the distribution by HIAT III of the High Yield Shares to
Shareholders in exchange for their HIAT III shares pursuant to and in
accordance with the terms of the Reorganization Agreement will constitute a
"reorganization" within the meaning of Section 368(a)(1)(C) of the Code, and
HIAT III and High Yield will each be a "party to a reorganization" within the
meaning of Section 368(b) of the Code;

     2. No gain or loss will be recognized by High Yield upon the receipt of
the assets of HIAT III solely in exchange for the High Yield Shares and the
assumption by High Yield of the stated liabilities of HIAT III;

     3. No gain or loss will be recognized by HIAT III upon the transfer of the
assets of HIAT III to High Yield in exchange for the High Yield Shares and the
assumption by High Yield of the stated liabilities or upon the distribution of
High Yield Shares to Shareholders in exchange for their HIAT III shares;

     4. No gain or loss will be recognized by Shareholders upon the exchange of
the shares of HIAT III for the High Yield Shares;

     5. The aggregate tax basis for the High Yield Shares received by each of
the Shareholders pursuant to the Reorganization will be the same as the
aggregate tax basis of the shares in HIAT III held by each such Shareholder
immediately prior to the Reorganization;

     6. The holding period of the High Yield Shares to be received by each
Shareholder will include the period during which the shares of HIAT III
surrendered in exchange therefor were held (provided such shares in HIAT III
were held as capital assets on the date of the Reorganization);

     7. The tax basis of the assets of HIAT III acquired by High Yield will be
the same as the tax basis of such assets of HIAT III immediately prior to the
Reorganization; and

     8. The holding period of the assets of HIAT III in the hands of High Yield
will include the period during which those assets were held by HIAT III.


                                       13


     The advice of Counsel is not binding on the Internal Revenue Service or
the courts and neither HIAT III nor High Yield has sought or will seek a ruling
with respect to the tax treatment of the Reorganization.

     SHAREHOLDERS SHOULD CONSULT THEIR TAX ADVISORS REGARDING THE EFFECT, IF
ANY, OF THE PROPOSED TRANSACTION IN LIGHT OF THEIR INDIVIDUAL CIRCUMSTANCES.
BECAUSE THE FOREGOING DISCUSSION ONLY RELATES TO THE FEDERAL INCOME TAX
CONSEQUENCES OF THE PROPOSED TRANSACTION, SHAREHOLDERS SHOULD ALSO CONSULT
THEIR TAX ADVISORS AS TO STATE AND LOCAL TAX CONSEQUENCES, IF ANY, OF THE
PROPOSED TRANSACTION.

TAX CONSEQUENCES OF THE REORGANIZATION TO HIAT III AND HIGH YIELD.

     Under the Code, the Reorganization may result in limitations on the
utilization of the capital loss carryovers and built-in losses of HIAT III. The
effect of any such limitations will depend on the existence and amount of HIAT
III's capital loss carryovers and built-in losses at the time of the
Reorganization. A fund will have built-in losses in its assets if its tax basis
in its assets exceeds the fair market value of such assets on the date of the
Reorganization. While the actual amount of such limitation will be determined
at the time of the Reorganization, if, for example, the Reorganization had
occurred on July 19, 2002, each year only approximately $0.7 million of HIAT
III's capital loss carryovers and recognized built-in capital losses would have
been able to be used to offset capital gains of the Combined Fund. The
Reorganization should not have any effect on the capital loss carryovers and
built-in losses of High Yield.

DESCRIPTION OF SHARES OF HIGH YIELD AND HIAT III AND THE ORGANIZATION OF THE TWO
FUNDS

     Class D shares of High Yield to be issued pursuant to the Reorganization
Agreement will, when issued, be fully paid and non-assessable by High Yield and
transferable without restrictions and will have no preemptive rights. As stated
above, Class D shares of High Yield are not subject to any sales charge on
purchase or redemption or any 12b-1 fee.

     Shares of HIAT III (the only existing class of which is common) are
entitled to one vote for each share held and to vote for the election of
Trustees and on other matters submitted to meetings of shareholders. Shares of
HIAT III have no pre-emptive or conversion rights and the shares, when issued,
are fully paid and non-assessable.

     The shareholders of High Yield are entitled to a full vote for each full
common share held. High Yield is authorized to issue an unlimited number of
common shares. All common shares of High Yield are of $0.01 par value and are
equal as to earnings, assets and voting privileges except that each Class will
have exclusive voting privileges with respect to matters relating to
distribution expenses borne solely by such Class or any other matter in which
the interests of one Class differ from the interests of any other Class. In
addition, Class B shareholders will have the right to vote on any proposed
material increase in Class A's expenses, if such proposal is submitted
separately to Class A shareholders. Also, Class A, Class B and Class C bear
expenses related to the distribution of their respective shares.

     High Yield's Articles of Incorporation permits the Directors to authorize
the creation of additional series of shares (the proceeds of which would be
invested in separate, independently managed portfolios) and additional Classes
of shares within any series. The Directors have not presently authorized any
such additional series or Classes of shares other than as set forth in High
Yield's Prospectus.

     High Yield is not required to hold annual meetings of shareholders and in
ordinary circumstances High Yield does not intend to hold such meetings. The
Directors may call special meetings of shareholders for action by shareholder
vote as may be required by the Investment Company Act or the Articles of
Incorporation. Under certain circumstances, the Directors may be removed by the
actions of the Directors. In addition, under


                                       14


certain circumstances, the shareholders may call a meeting to remove the
Directors and High Yield is required to provide assistance in communicating
with shareholders about such a meeting. The voting rights of shareholders are
not cumulative, so that holders of more than 50 percent of the shares voting
can, if they choose, elect all Directors being selected, while the holders of
the remaining shares would be unable to elect any Directors. HIAT III, whose
shares are listed on the NYSE, does hold annual meetings as required by the
rules of the NYSE.

     HIAT III is an entity of the type commonly known as a "Massachusetts
business trust." Under Massachusetts law, shareholders of a business trust may,
under certain limited circumstances, be held personally liable as partners for
the obligations of HIAT III. However, the Declaration of Trust contains an
express disclaimer of shareholder liability for acts or obligations of HIAT
III, requires that notice of such HIAT III obligations include such disclaimer,
and provides for indemnification out of the HIAT III's property for any
shareholder held personally liable for the obligations of HIAT III. Thus, the
risk of a shareholder incurring financial loss on account of shareholder
liability is limited to circumstances in which HIAT III itself would be unable
to meet its obligations. High Yield is a Maryland corporation. Shareholders of
a Maryland Corporation are not personally liable for the obligations of the
company.

     HIAT III presently has certain anti-takeover provisions in its Declaration
of Trust which could have the effect of limiting the ability of other entities
or persons to acquire control of HIAT III, to cause it to engage in certain
transactions or to modify its structure. The Board of Trustees is divided into
three classes, each having a term of three years. Each year the term of one
class expires. This provision could delay for up to two years the replacement
of a majority of the Board of Trustees. In addition, the affirmative vote or
consent of the holders of 80% of the shares of HIAT III (a greater vote than
that required by the 1940 Act and greater than the required vote applicable to
business corporations under state law) is required to authorize the conversion
of HIAT III from a closed-end to an open-end investment company, or generally
to authorize any of the following transactions:

     (i)       merger or consolidation of HIAT III with or into any other
               corporation;

     (ii)      issuance of any securities of HIAT III to any person or entity
               for cash;

     (iii)     sale, lease or exchange of all or any substantial part of the
               assets of HIAT III, to any entity or person (except assets having
               an aggregate fair market value of less than $1,000,000);

     (iv)      sale, lease or exchange to HIAT III, in exchange for securities
               of HIAT III, of any assets of any entity or person (except assets
               having an aggregate fair market value of less than $1,000,000)

if such corporation, person or entity is directly, or indirectly through
affiliates, the beneficial owner of 5% or more of the outstanding shares of
HIAT III. However, such 80% vote or consent will not be required with respect
to the foregoing transactions where the Board of Trustees under certain
conditions approves the transaction (as the Board has done with respect to the
Reorganization), in which case, with respect to (i) and (iii) above, a majority
shareholder vote or consent will be required, and, with respect to (ii) and
(iv) above, no shareholder vote or consent would be required. Furthermore, any
amendment to the provisions in the Declaration of Trust requiring an 80%
shareholder vote or consent for the foregoing transactions similarly requires
an 80% shareholder vote or consent.


CAPITALIZATION TABLE (UNAUDITED)

     The following table sets forth the capitalization of High Yield and HIAT
III as of July 31, 2002 and on a pro forma combined basis as if the
Reorganization had occurred on that date:


                                       15





                                                                                           NET ASSET
                                                                                             VALUE
                                                    NET ASSETS      SHARES OUTSTANDING     PER SHARE
                                                  --------------   --------------------   ----------
                                                                                 
HIAT III ......................................     $ 13,644,721           12,792,179         $ 1.07
High Yield
 (Class A) ....................................     $ 23,153,188           14,587,759         $ 1.59
 (Class B) ....................................     $387,265,515          244,990,472         $ 1.58
 (Class C) ....................................     $ 34,900,806           22,036,996         $ 1.58
 (Class D) ....................................     $ 86,641,125           54,631,515         $ 1.59
Total High Yield (Class A-D)...................     $531,960,634
Combined Fund (pro forma) (High Yield after the
 Reorganization)
 (Class A) ....................................     $ 23,153,188           14,587,759         $ 1.59
 (Class B) ....................................     $387,265,515          244,990,472         $ 1.58
 (Class C) ....................................     $ 34,900,806           22,036,996         $ 1.58
 (Class D) ....................................     $100,285,846           63,213,101         $ 1.59
 Total Combined Fund (pro forma) (High Yield)
 (Class A-D) ..................................     $545,605,355


APPRAISAL RIGHTS

     Shareholders will have no appraisal rights in connection with the
Reorganization.

        COMPARISON OF INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS

INVESTMENT OBJECTIVES AND POLICIES

     HIAT III and High Yield have similar investment objectives. Both HIAT III
and High Yield, as a primary investment objective, seek to earn a high level
current income. As a secondary investment objective, HIAT III and High Yield
seek capital appreciation but only to the extent consistent with their primary
objective.

     High Yield invests at least 80% of its assets in fixed-income securities
rated lower than Baa by Moody's or lower than BBB by S&P (commonly known as
"junk bonds") or in non-rated securities considered by MS Advisors to be
appropriate investments for the fund. These lower-rated and unrated fixed
income securities may also include "Rule 144A" securities, which are subject to
resale restrictions. There are no minimum quality ratings for investments, and
as such the fund may invest in securities which no longer make payments of
interest or principal. In deciding which securities to buy, hold or sell, MS
Advisors considers an issuer's creditworthiness, economic developments,
interest rate trends and other factors it deems relevant. In evaluating an
issuer's creditworthiness, MS Advisors relies principally on its own analysis.
A security's credit rating is simply one factor that may be considered by MS
Advisors in this regard. High Yield may invest up to 20% of its assets in
securities rated Baa or BBB or higher (or, if not rated, determined to be of
comparable quality) when MS Advisors believes that such securities may produce
attractive yields. The fund's fixed-income securities may include zero coupon
securities and payment in kind bonds. Zero coupon securities are purchased at a
discount and either (i) pay no interest, or (ii) accrue interest, but make no
payments until maturity; payment in kind bonds are purchased at the face amount
of the bond and accrue additional principal but make no payments until
maturity. High Yield may also invest in common stocks and foreign securities,
and, may acquire warrants which may or may not be attached to common stock and
may purchase units which combine debt securities with equity securities.
Additionally, High Yield may invest up to 10% of its assets in municipal
obligations that pay interest exempt from federal income tax. Other than its
investment objectives, the foregoing investment policies of High Yield may be
changed without shareholder approval.


                                       16


     HIAT III also invests at least 80% of its assets in the lower-rated and
unrated fixed-income securities previously described, as well as Rule 144A
securities. Fixed-income securities appropriate for HIAT III and High Yield may
include both convertible and nonconvertible debt securities and preferred
stock. Under normal conditions, 20% of HIAT III's total assets may be invested
in higher-rated fixed-income securities and unrated fixed-income securities of
comparable quality and HIAT III also may invest up to 10% of its assets in
municipal obligations. HIAT III may also purchase common stocks, foreign
securities, money market instruments and may acquire warrants and unit
offerings.

     Both High Yield and HIAT III may take temporary "defensive" positions that
are inconsistent with each fund's principal investment strategies in attempting
to respond to adverse market conditions. Both High Yield and HIAT III may
invest any amount of their assets in cash or money market instruments in a
defensive posture when MS Advisors believes it is advisable to do so.

     Other than its investment objectives, the foregoing investment policies of
HIAT III may be changed without shareholder approval.

     Both High Yield and HIAT III may (i) engage in options and futures
transactions, (ii) purchase securities on a when-issued or delayed delivery
basis, (iii) purchase securities on a "when, as and if issued" basis, (iv)
enter into repurchase agreements, (HIAT III may not invest in repurchase
agreements that do not mature within seven days, if any such investments amount
to more than 10% of HIAT III's total assets), (v) invest in private placements
(up to 15% in the case of High Yield and up to 10% in the case of HIAT III),
(vi) lend their portfolio securities (up to 25% in the case of High Yield and
up to 10% in the case of HIAT III), and (vii) invest in public utilities.

     The foregoing discussion is a summary of the principal differences and
similarities between the investment policies of the funds. For a more complete
discussion of High Yield's policies, see "Principal Investment Strategies" and
"Additional Investment Strategy Information" in High Yield's Prospectus and
"Description of the Fund and Its Investments and Risks" in High Yield's
Statement of Additional Information.

INVESTMENT RESTRICTIONS

     The investment restrictions adopted by HIAT III and High Yield as
fundamental policies are substantially similar. HIAT III's investment
restrictions and their similarities or differences with High Yield's investment
restrictions are summarized below. A full description of High Yield's
investment restrictions can be found under the caption "Description of the Fund
and Its Investments and Risks -- Fund Policies/Investment Restrictions" in High
Yield's Statement of Additional Information. A fundamental investment
restriction cannot be changed without the vote of the majority of the
outstanding voting securities of a fund, as defined in the 1940 Act.

     HIAT III may not:

     1. Acquire common stocks in excess of 20% of its total assets. High Yield
has a similar restriction.

     2. As to 75% of its total assets, invest more than 5% of its total assets
in the securities of any one issuer, (other than obligations issued or
guaranteed by the United States Government, its agencies or instrumentalities).
High Yield has a similar restriction but as to 100% of its total assets.

     3. As to 75% of its total assets, purchase more than 10% of the voting
securities, or more than 10% of any class of securities of any issuer. For
purposes of this restriction, all outstanding debt securities of an issuer are
considered as one class and all preferred stocks of an issuer are considered as
one class. High Yield has a similar restriction but as to 100% of its total
assets.


                                       17


     4. Invest 25% or more of its total assets in securities of issuers in any
one industry. For purposes of this restriction, gas, electric, water and
telephone utilities will each be treated as being a separate industry. This
restriction does not apply to obligations issued or guaranteed by the United
States Government or its agencies or instrumentalities. High Yield has an
identical restriction.

     5. Invest more than 5% of its total assets in securities of companies
having a record, together with predecessors, of less than three years of
continuous operation. This restriction shall not apply to any obligation of the
United States Government, its agencies or instrumentalities. High Yield has an
identical restriction.

     6. Invest more than 10% of its total assets in securities which are
restricted as to disposition under the federal securities laws or otherwise.
This restriction shall not apply to securities received as a result of
corporate reorganization or similar transaction affecting readily marketable
securities already held in HIAT III's portfolio; however, HIAT III will attempt
to dispose in an orderly fashion of any securities received under these
circumstances to the extent that such securities exceed 15% of HIAT III's total
assets. High Yield, as an open-end investment company, may not invest more than
15% of its assets in illiquid securities.

     7. Invest in securities of any issuer if, to the knowledge of the fund,
any officer or trustee of the fund or any officer or director of the Investment
Manager owns more than 1/2 of 1% of the outstanding securities of such issuer,
and such officers, trustees and directors who own more than 1/2 of 1% own in
the aggregate more than 5% of the outstanding securities of such issuer. High
Yield has an identical restriction.

     8. Purchase or sell real estate or interests therein, although it may
purchase securities of issuers which engage in real estate operations and
securities which are secured by real estate or interests therein. High Yield
has an identical restriction.

     9. Purchase or sell commodities except that the fund may purchase or sell
financial futures contracts and related options. High Yield has an identical
restriction.

     10. Purchase oil, gas or other mineral leases, rights or royalty
contracts, or exploration or development programs, except that the fund may
invest in securities of companies which invest in or sponsor such programs.
High Yield has an identical restriction.

     11. Write, purchase or sell puts, calls, or combinations thereof, except
for options on futures contracts or options on debt securities. High Yield has
an identical restriction.

     12. Purchase securities of other investment companies, except in
connection with a merger, consolidation, reorganization or acquisition of
assets. High Yield has an identical restriction.

     13. Borrow money, except that the fund may borrow from a bank for
temporary or emergency purposes or for repurchase of its shares provided that
immediately after such borrowing the amount borrowed does not exceed 33 1/3% of
the value of its total assets (including the amount borrowed) less its
liabilities (not including any borrowings but including the fair market value
at the time of computation of any other senior securities which are outstanding
at the time). High Yield may only borrow for temporary purposes and only in
amounts not exceeding 5% of the value of its total assets (not including the
amount borrowed).

     14. Pledge its assets or assign or otherwise encumber them except to
secure borrowings effected within the limitations set forth in Restriction 13.
However, for the purpose of this restriction, collateral arrangements with
respect to the writing of options and collateral arrangements with respect to
initial margin for futures are not deemed to be pledges of assets. High Yield
has a substantially similar restriction.

     15. Issue senior securities as defined in the 1940 Act, except insofar as
the fund may be deemed to have issued a senior security by reason of: (a)
entering into any repurchase agreement; (b) purchasing any securities on a


                                       18


when-issued or delayed delivery basis; (c) purchasing or selling any financial
futures contracts; (d) borrowing money in accordance with restrictions
described above; or (e) lending portfolio securities. High Yield is similarly
restricted.

     16. Make loans of money or securities, except: (a) by the purchase of debt
obligations in which the fund may invest consistent with its investment
objective and policies; (b) by investment in repurchase agreements; or (c) by
lending its portfolio securities. High Yield has an identical restriction.

     17. Make short sales of securities. High Yield has an identical
restriction.

     18. Purchase securities on margin, except for such short-term loans as are
necessary for the clearance of purchases of portfolio securities. High Yield
has an identical restriction.

     19. Engage in the underwriting of securities, except insofar as the fund
may be deemed an underwriter under the Securities Act of 1933 in disposing of a
portfolio security. High Yield has an identical restriction.

     20. Invest for the purpose of exercising control or management of another
company. High Yield has an identical restriction.

                     ADDITIONAL MATTERS REGARDING HIAT III

     This section sets forth additional information about HIAT III which is not
contained elsewhere in this Proxy Statement and Prospectus.

HISTORY OF PUBLIC TRADING OF HIAT III'S SHARES

     Shares of HIAT III trade on the New York Stock Exchange under the symbol
"YLH". The following table shows the history of public trading of the shares of
beneficial interest of HIAT III by quarter for the last two fiscal years. The
table sets forth the per share high market price and the per share low market
price on the NYSE for each completed fiscal quarter and the corresponding net
asset value for that market price as well as the discount (expressed as a
percentage of net asset value) represented by the difference between the market
price and its corresponding net asset value:



                                                           PERCENTAGE                                  PERCENTAGE
                                MARKET       NET ASSET       PREMIUM        MARKET      NET ASSET       PREMIUM
QUARTER ENDED                 PRICE-HIGH       VALUE       (DISCOUNT)     PRICE-LOW       VALUE        (DISCOUNT)
- --------------------------   ------------   -----------   ------------   -----------   -----------   -------------
                                                                                   
January 31, 2002 .........     $ 1.440        $ 1.29          11.63%       $ 1.340       $ 1.26            6.35%
October 31, 2001 .........     $ 1.680        $ 1.62           3.70%       $ 1.250       $ 1.39          (10.07)%
July 31, 2001 ............     $ 1.730        $ 1.64           5.49%       $ 1.670       $ 1.63            2.45%
April 30, 2001 ...........     $ 3.930        $ 2.35          67.23%       $ 3.080       $ 2.29           34.50%
January 31, 2001 .........     $ 3.938        $ 2.33          68.99%       $ 2.750       $ 2.36           16.53%
October 31, 2000 .........     $ 4.813        $ 3.30          45.83%       $ 3.625       $ 2.89           25.43%
July 31, 2000 ............     $ 4.688        $ 3.54          32.42%       $ 4.125       $ 3.61           14.27%
April 30, 2000 ...........     $ 4.438        $ 3.82          16.16%       $ 4.063       $ 4.05            2.61%



     On        , 2002, the shares traded at a market price of $        with a
net asset value of $       .

INVESTMENT MANAGER

     HIAT III's investment manager, MS Advisors, maintains its offices at 1221
Avenue of the Americas, New York, New York 10020. MS Advisors, which was
incorporated in July, 1992 under the name Dean Witter


                                       19


InterCapital Inc., changed its name to Morgan Stanley Investment Advisors Inc.
on June 18, 2001. MS Advisors together with Morgan Stanley Services Company
Inc. ("MS Services"), its wholly-owned subsidiary, had approximately
$         billion in assets under management as of               , 2002. MS
Advisors is a wholly-owned subsidiary of Morgan Stanley, a preeminent global
financial services firm that maintains leading market positions in each of its
three primary businesses--securities, asset management and credit services.
Morgan Stanley has its offices at 1585 Broadway, New York, New York 10036.

     The Principal Executive Officer and Directors of MS Advisors are Mitchell
M. Merin, President and Chief Executive Officer, Ronald E. Robison, Managing
Director and Chief Administrative Officer and Barry Fink, Vice President,
Secretary and General Counsel. Messrs. Merin, Robison and Fink also serve as
officers of HIAT III.

     MS Advisors and its wholly-owned subsidiary, MS Services, serve in various
investment management, advisory, management and administrative capacities to
investment companies and pension plans and other institutional and individual
investors.

     There are various lawsuits pending against Morgan Stanley involving
material amounts which, in the opinion of its management, will be resolved with
no material effect on the consolidated financial position of the company.

PORTFOLIO MANAGEMENT

     HIAT III's portfolio is managed by the High Yield Corporate team of the
Taxable Fixed-Income Group. Current members of the team include Stephen F.
Esser, a Managing Director of HIAT III's Investment Manager, Gordon W. Loery,
an Executive Director of HIAT III's Investment Manager, and Deanna L.
Loughnane, an Executive Director of HIAT III's Investment Manager.

EXPENSES BORNE BY HIAT III

     Under the Investment Management Agreement, HIAT III is obligated to bear
all of the costs and expenses of its operation, except those specifically
assumed by the Investment Manager, including, without limitation: charges and
expenses of any registrar, custodian or depository appointed by HIAT III for
the safekeeping of its cash, portfolio securities or commodities and other
property, and any stock transfer or dividend agent or agents appointed by HIAT
III; brokers' commissions chargeable to HIAT III in connection with portfolio
securities transactions to which the Trust is a party; all taxes, including
securities or commodities issuance and transfer taxes, and fees payable by the
Trust to Federal, state or other governmental agencies; costs and expenses of
engraving or printing of certificates representing shares of HIAT III; all
costs and expenses in connection with registration and maintenance of
registration of HIAT III and of its shares with the Securities and Exchange
Commission and various states and other jurisdictions (including filing fees
and legal fees and disbursements of counsel); the costs and expense of
preparing, printing, including typesetting, and distributing prospectuses for
such purposes; all expenses of shareholders' and Trustees' meetings and of
preparing, printing and mailing proxy statements and reports to shareholders;
fees and travel expenses of Trustees or members of any advisory board or
committee who are not employees of HIAT III's Investment Manager or any of
their corporate affiliates; all expenses incident to the payment of any
dividend or distribution program; charges and expenses of any outside pricing
services; charges and expenses of legal counsel, including counsel to the
Independent Trustees of HIAT III, and independent accountants in connection
with any matter relating to HIAT III (not including compensation or expenses of
attorneys employed by the Investment Manager); membership dues of industry
associations; interest payable on borrowings; fees and expenses incident to the
listing of HIAT III's shares on any stock exchange; postage; insurance premiums
on property or personnel


                                       20


(including officers and Trustees) of HIAT III which inure to its benefit;
extraordinary expenses (including, but not limited to legal claims,
liabilities, litigation costs and any indemnification related thereto); and all
other charges and costs of HIAT III's operations unless otherwise explicitly
provided in the Investment Management Agreement.

             ADDITIONAL INFORMATION ABOUT HIAT III AND HIGH YIELD

GENERAL

     HIAT III was organized as a "Massachusetts business trust" under the laws
of the Commonwealth of Massachusetts on November 23, 1988 and commenced
operations as a closed-end registered investment company on February 28, 1989.
For a discussion of the organization and operation of High Yield, see "Fund
Management" and "Investment Objective" in High Yield's Prospectus.

     The Board of Trustees of HIAT III and the Board of Directors of High Yield
oversee the management of the funds but do not themselves manage the funds. The
Trustees/Directors review various services provided by or under the direction
of the Investment Manager to ensure that the funds' general investment policies
and programs are properly carried out. The Trustees/Directors also conduct
their review to ensure that administrative services are provided to the funds
in a satisfactory manner.

     Under state law, the duties of the Trustees/Directors are generally
characterized as a duty of loyalty and a duty of care. The duty of loyalty
requires a Trustee/Director to exercise his or her powers in the interest of
each fund and not the Trustee's/Director's own interest or the interest of
another person or organization. A Trustee/Director satisfies his or her duty of
care by acting in good faith with the care of an ordinarily prudent person and
in a manner the Trustee/Director reasonably believes to be in the best interest
of each fund and its shareholders.

LITIGATION

     Last year, a purported class action lawsuit was filed against HIAT III and
its Investment Manager, among others, in the District Court for the Southern
District of New York alleging that HIAT III violated the federal securities
laws and New York common law by investing more than 25% of its assets in a
single industry or group of industries -- specifically, telecommunications --
without first obtaining shareholder approval. The amended class action
complaint alleges that HIAT III's decline in its net asset value during the
period August 1998 through August 2001 was caused by HIAT III overconcentrating
its assets in the telecommunications industry or industries, and further, that
HIAT III was not allowed to concentrate more than 25% of its assets in this
single industry or group of industries under the its Registration Statement and
federal securities laws without first obtaining shareholder approval.

     HIAT III and its Investment Manager have filed a motion to dismiss the
amended class action complaint and intend to vigorously defend the allegations
against it. The motion to dismiss is fully briefed and HIAT III is awaiting the
Court's decision on the motion. In order to ensure that High Yield is not,
subsequent to the Merger, adversely affected by the HIAT III litigation, the
Investment Manager has agreed to indemnify High Yield against any and all
claims, costs and expenses associated with the HIAT III litigation.

FINANCIAL INFORMATION

     For certain financial information about High Yield, see "Financial
Highlights" and "Past Performance" in High Yield's Prospectus, and for certain
financial information about HIAT III, see HIAT III's Annual Report for its
fiscal year ended January 31, 2002 and succeeding Semi-Annual Report for the
six months ended July 31, 2002.


                                       21


MANAGEMENT

     For information about the respective Board of Directors, Investment
Manager, and the Distributor of High Yield, see "Fund Management" in High
Yield's Prospectus and "Investment Management and Other Services" in High
Yield's Statement of Additional Information and, with respect to HIAT III, see
"Additional Matters Regarding HIAT III" above.

DESCRIPTION OF SECURITIES AND SHAREHOLDER INQUIRIES

     For a description of the nature and most significant attributes of shares
of HIAT III and High Yield, and information regarding shareholder inquiries,
see the discussion herein under "The Reorganization--Description of Shares of
High Yield and HIAT III" and "Available Information" as well as "Capital Stock
and Other Securities" in High Yield's Statement of Additional Information.

CUSTODIAN AND TRANSFER AGENT AND DIVIDEND PAYING AGENT

     Morgan Stanley Trust is the Transfer Agent for each of HIAT III's and High
Yield's shares and the Dividend Disbursing Agent for payment of dividends and
distributions on their respective shares. The principal business address of the
Transfer Agent is Harborside Financial Center, Plaza Two, Jersey City, New
Jersey 07311. The Bank of New York, 100 Church Street, New York, NY 10007 is
the Custodian of the assets of both HIAT III and High Yield.

DIVIDENDS, DISTRIBUTIONS AND TAXES

     For a discussion of High Yield's and HIAT III's policies with respect to
dividends, distributions and taxes, see "Distributions" and "Tax Consequences"
in High Yield's Prospectus and "Dividends and Distributions; Automatic Dividend
Reinvestment Plan" in HIAT III's Prospectus.

PURCHASES AND REDEMPTIONS

     For a discussion of how High Yield's shares may be purchased and redeemed,
see "How to Buy Shares," "How to Exchange Shares" and "How to Sell Shares" in
High Yield's Prospectus.

                  MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE

     For a discussion of High Yield's performance, see management's letter to
shareholders in its Annual Report for its fiscal year ended August 31, 2002 and
its preceding Semi-Annual Report for the six month period ended February 28,
2002, each accompanying this Proxy Statement and Prospectus. For a discussion of
the performance of HIAT III, see HIAT III's Annual Report for its fiscal year
ended January 31, 2002 and the Semi-Annual Report for the six months ended July
31, 2002.

                        FINANCIAL STATEMENTS AND EXPERTS

     The financial statements of High Yield, for the year ended _________, 2002,
and the financial statements of HIAT III for the year ended January 31, 2002
have been audited by Deloitte & Touche LLP, independent auditors, and are
incorporated by reference and included in the Statement of Additional
Information relating to the Registration Statement on Form N-14 of which this
Proxy Statement and Prospectus forms a part. These financial statements have
been incorporated by reference in reliance upon such reports given upon the
authority of Deloitte & Touche LLP, as experts in accounting and auditing.


                                       22


                                 LEGAL MATTERS

     Certain legal matters concerning the issuance of shares of High Yield will
be passed upon by Mayer, Brown, Rowe & Maw, New York, New York. Such firm will
rely on Massachusetts counsel as to matters of Massachusetts law.

                             AVAILABLE INFORMATION

     Additional information about HIAT III and High Yield is available, as
applicable, in the following documents which are incorporated herein by
reference: (i) High Yield's Prospectus dated       , attached to this Proxy
Statement and Prospectus, which Prospectus forms a part of Post-Effective
Amendment No.     to High Yield's Registration Statement on Form N-1A (File
Nos. 2-64782; 811-2932 (ii) High Yield's Annual Report for its fiscal year
ended August 31, 2002 and its preceding Semi-Annual Report for the six months
ended February 28, 2002, accompanying this Proxy Statement and Prospectus; and
(iii) HIAT III's Annual Report for its fiscal year ended January 31, 2002 and
its succeeding Semi-Annual Report for the six months ended July 31, 2002. The
foregoing documents may be obtained without charge by calling (800) 869-NEWS
(toll-free).

     HIAT III and High Yield are subject to the informational requirements of
the Securities Exchange Act of 1934, as amended, and in accordance therewith,
file reports and other information with the Commission. Proxy material, reports
and other information about HIAT III and High Yield which are of public record
can be inspected and copied at public reference facilities maintained by the
Commission at Room 1204, Judiciary Plaza, 450 Fifth Street, NW, Washington,
D.C. 20549 and certain of its regional offices, and copies of such materials
can be obtained at prescribed rates from the Public Reference Branch, Office of
Consumer Affairs and Information Services, Securities and Exchange Commission,
Washington, D.C. 20549.

     The shares of beneficial interest of HIAT III are listed on the NYSE and,
in accordance with the requirements of the NYSE, HIAT III files proxy
materials, reports and other information with the NYSE. These materials can be
inspected at the New York Stock Exchange located at 11 Wall Street, New York,
NY 10005 or by telephoning the NYSE at (212) 656-3000.

                                 OTHER BUSINESS

     Management of HIAT III knows of no business other than the matters
specified above which will be presented at the Meeting. Since matters not known
at the time of the solicitation may come before the Meeting, the proxy as
solicited confers discretionary authority with respect to such matters as
properly come before the Meeting, including any adjournment or adjournments
thereof, and it is the intention of the persons named as attorneys-in-fact in
the proxy to vote this proxy in accordance with their judgment on such matters.


                                        By Order of the Board of Trustees


                                        Barry Fink,
                                        Secretary


       , 2002

                                       23


                                                                      EXHIBIT A


                      AGREEMENT AND PLAN OF REORGANIZATION

     THIS AGREEMENT AND PLAN OF REORGANIZATION ("Agreement") is made as of this
25th day of July, 2002, by and between MORGAN STANLEY HIGH YIELD SECURITIES
INC., a Maryland corporation ("High Yield") and MORGAN STANLEY HIGH INCOME
ADVANTAGE TRUST III, a Massachusetts business trust ("HIAT III").

     This Agreement is intended to be and is adopted as a "plan of
reorganization" within the meaning of Treas. Reg. 1.368-2(g), for a
reorganization under Section 368(a)(1) of the Internal Revenue Code of 1986, as
amended (the "Code"). The reorganization ("Reorganization") will consist of the
transfer to High Yield of substantially all of the assets of HIAT III in
exchange for the assumption by High Yield of all stated liabilities of HIAT III
and the issuance by High Yield of Class D shares of beneficial interest, par
value $0.01 per share (the "High Yield Shares"), to be distributed, after the
Closing Date hereinafter referred to, to the shareholders of HIAT III in
liquidation of HIAT III as provided herein, all upon the terms and conditions
hereinafter set forth in this Agreement.

     In consideration of the premises and of the covenants and agreements
hereinafter set forth, the parties hereto covenant and agree as follows:


1. THE REORGANIZATION AND LIQUIDATION OF HIAT III

     1.1 Subject to the terms and conditions herein set forth and on the basis
of the representations and warranties contained herein, HIAT III agrees to
assign, deliver and otherwise transfer the HIAT III Assets (as defined in
paragraph 1.2) to High Yield and High Yield agrees in exchange therefor to
assume all of HIAT III stated liabilities on the Closing Date as set forth in
paragraph 1.3(a) and to deliver to HIAT III the number of High Yield Shares,
including fractional High Yield Shares, determined in the manner set forth in
paragraph 2.3. Such transactions shall take place at the closing provided for
in paragraph 3.1 ("Closing").

     1.2 (a) The "HIAT III Assets" shall consist of all property, including
without limitation, all cash (other than the "Cash Reserve" (as defined in
paragraph 1.3(b)), cash equivalents, securities and dividend and interest
receivables owned by HIAT III, and any deferred or prepaid expenses shown as an
asset on HIAT III's books on the Valuation Date.

     (b) On or prior to the Valuation Date, HIAT III will provide High Yield
with a list of all of HIAT III assets to be assigned, delivered and otherwise
transferred to High Yield and of the stated liabilities to be assumed by High
Yield pursuant to this Agreement. HIAT III reserves the right to sell any of
the securities on such list but will not, without the prior approval of High
Yield, acquire any additional securities other than securities of the type in
which High Yield is permitted to invest and in amounts agreed to in writing by
High Yield. High Yield will, within a reasonable time prior to the Valuation
Date, furnish HIAT III with a statement of High Yield's investment objectives,
policies and restrictions and a list of the securities, if any, on the list
referred to in the first sentence of this paragraph that do not conform to High
Yield's investment objective, policies and restrictions. In the event that HIAT
III holds any investments that High Yield is not permitted to hold, HIAT III
will dispose of such securities on or prior to the Valuation Date. In addition,
if it is determined that the portfolios of HIAT III and High Yield, when
aggregated, would contain investments exceeding certain percentage limitations
imposed upon High Yield with respect to such investments, HIAT III if requested
by High Yield will, on or prior to the Valuation Date, dispose of and/or
reinvest a sufficient amount of such investments as may be necessary to avoid
violating such limitations as of the Closing Date (as defined in paragraph
3.1).


                                      A-1


     1.3 (a) HIAT III will endeavor to discharge all of its liabilities and
obligations on or prior to the Valuation Date. High Yield will assume all
stated liabilities, which includes, without limitation, all expenses, costs,
charges and reserves reflected on an unaudited Statement of Assets and
Liabilities of HIAT III prepared by the Treasurer of HIAT III, as of the
Valuation Date in accordance with generally accepted accounting principles
consistently applied from the prior audited period.

     (b) On the Valuation Date, HIAT III may establish a cash reserve, which
shall not exceed 5% of HIAT III's net assets as of the close of business on the
Valuation Date ("Cash Reserve") to be retained by HIAT III and used for the
payment of its liabilities not discharged prior to the Valuation Date and for
the expenses of dissolution.

     1.4 In order for HIAT III to comply with Section 852(a)(1) of the Code and
to avoid having any investment company taxable income or net capital gain (as
defined in Sections 852(b)(2) and 1222(11) of the Code, respectively) in the
short taxable year ending with its dissolution, HIAT III will on or before the
Valuation Date (a) declare a dividend in an amount large enough so that it will
have declared dividends of all of its investment company taxable income and net
capital gain, if any, for such taxable year (determined without regard to any
deduction for dividends paid) and (b) distribute such dividend.

     1.5 On the Closing Date or as soon as practicable thereafter, HIAT III
will distribute High Yield Shares received by HIAT III pursuant to paragraph
1.1 pro rata to its shareholders of record determined as of the close of
business on the Valuation Date ("HIAT III Shareholders"). Each HIAT III
Shareholder will receive Class D shares of High Yield. Such distribution will
be accomplished by an instruction, signed by the Secretary of HIAT III, to
transfer High Yield Shares then credited to HIAT III's account on the books of
High Yield to open accounts on the books of High Yield in the names of the HIAT
III Shareholders and representing the respective pro rata number of High Yield
Shares due such HIAT III Shareholders. All issued and outstanding shares of
HIAT III simultaneously will be canceled on HIAT III's books; however, share
certificates representing interests in HIAT III will represent a number of High
Yield Shares after the Closing Date as determined in accordance with paragraph
2.3. High Yield will issue certificates representing High Yield Shares in
connection with such exchange only upon the written request of a HIAT III
Shareholder.

     1.6 Ownership of High Yield Shares will be shown on the books of High
Yield's transfer agent. High Yield Shares will be issued in the manner
described in High Yield's current Prospectus and Statement of Additional
Information.

     1.7 Any transfer taxes payable upon issuance of High Yield Shares in a
name other than the registered holder of High Yield Shares on HIAT III's books
as of the close of business on the Valuation Date shall, as a condition of such
issuance and transfer, be paid by the person to whom High Yield Shares are to
be issued and transferred.

     1.8 Any reporting responsibility of HIAT III is and shall remain the
responsibility of HIAT III up to and including the date on which HIAT III is
dissolved pursuant to paragraph 1.9.

     1.9 Within one year after the Closing Date, HIAT III shall pay or make
provision for the payment of all its liabilities and taxes, and distribute to
the shareholders of HIAT III as of the close of business on the Valuation Date
any remaining amount of the Cash Reserve (as reduced by the estimated cost of
distributing it to shareholders). If and to the extent that any trust, escrow
account, or other similar entity continues after the close of such one-year
period in connection either with making provision for payment of liabilities or
taxes or with distributions to shareholders of HIAT III, such entity shall
either (i) qualify as a liquidating trust under Section 7701 of the Code (and
applicable Treasury Regulations thereunder) or other entity which does not
constitute a continuation of HIAT III for federal income tax purposes, or (ii)
be subject to a waiver under


                                      A-2


Section 368(a)(2)(G)(ii) of the complete distribution requirement of Section
368(a)(2)(G)(i) of the Code. HIAT III shall be dissolved under Massachusetts
law, promptly following the making of all distributions pursuant to paragraph
1.5 (and, in any event, within one year after the Closing Date).

     1.10 Copies of all books and records maintained on behalf of HIAT III in
connection with its obligations under the Investment Company Act of 1940, as
amended (the "1940 Act"), the Code, state blue sky laws or otherwise in
connection with this Agreement will promptly after the Closing be delivered to
officers of High Yield or their designee and High Yield or its designee shall
comply with applicable record retention requirements to which HIAT III is
subject under the 1940 Act.

2. VALUATION

     2.1 The value of the HIAT III Assets shall be the value of such assets
computed as of 4:00 p.m. on the New York Stock Exchange on the third business
day following the receipt of the requisite approval by shareholders of HIAT III
of this Agreement or at such time on such earlier or later date after such
approval as may be mutually agreed upon in writing (such time and date being
hereinafter called the "Valuation Date"), using the valuation procedures set
forth in HIAT III's initial registration statement on Form N-2 dated June 17,
1987 which procedures are similar to the valuation procedures in High Yield's
then current Prospectus and Statement of Additional Information.

     2.2 The net asset value of a High Yield Share shall be the net asset value
per share computed on the Valuation Date, using the valuation procedures set
forth in High Yield's then current Prospectus and Statement of Additional
Information.

     2.3 The number of High Yield Shares (including fractional shares, if any)
to be issued hereunder shall be determined, with respect to each class, by
dividing the aggregate net asset value of HIAT III shares (determined in
accordance with paragraph 2.1) by the net asset value per share of Class D
shares of High Yield (determined in accordance with paragraph 2.2). For
purposes of this paragraph, the aggregate net asset value of the shares of HIAT
III shall not include the amount of the Cash Reserve.

     2.4 All computations of value shall be made by Morgan Stanley Services
Company Inc. ("MS Services") in accordance with its regular practice in pricing
High Yield. High Yield shall cause MS Services to deliver a copy of its
valuation report at the Closing.

3. CLOSING AND CLOSING DATE

     3.1 The Closing shall take place on the next business day following the
Valuation Date (the "Closing Date"). The Closing shall be held as of      a.m.
Eastern time on    , 2002, or at such other time as the parties may agree. The
Closing shall be held at 1221 Avenue of the Americas, New York, New York, at
the principal offices of HIAT III and High Yield. All acts taking place at the
Closing shall be deemed to take place simultaneously as of      a.m. Eastern
time on the Closing Date unless otherwise provided.

     3.2 Portfolio securities held by HIAT III and represented by a certificate
or other written instrument shall be presented by it or on its behalf to The
Bank of New York (the "Custodian"), as custodian for High Yield, for
examination no later than five business days preceding the Valuation Date. Such
portfolio securities (together with any cash or other assets) shall be
delivered by HIAT III to the Custodian for the account of High Yield on or
before the Closing Date in conformity with applicable custody provisions under
the 1940 Act and duly endorsed in proper form for transfer in such condition as
to constitute good delivery thereof in accordance with the custom of brokers.
The portfolio securities shall be accompanied by all necessary Federal and
state stock transfer stamps or a check for the appropriate purchase price of
such stamps. Portfolio securities and


                                      A-3


instruments deposited with a securities depository (as defined in Rule 17f-4
under the 1940 Act) shall be delivered on or before the Closing Date by
book-entry in accordance with customary practices of such depository and the
Custodian. The cash delivered shall be in the form of a Federal Funds wire,
payable to the order of "The Bank of New York, Custodian for Morgan Stanley
High Yield Securities Inc."

     3.3 In the event that on the Valuation Date, (a) the New York Stock
Exchange shall be closed to trading or trading thereon shall be restricted or
(b) trading or the reporting of trading on such Exchange or elsewhere shall be
disrupted so that, in the judgment of both High Yield and HIAT III, accurate
appraisal of the value of the net assets of High Yield or the HIAT III Assets
is impracticable, the Valuation Date shall be postponed until the first
business day after the day when trading shall have been fully resumed without
restriction or disruption and reporting shall have been restored.

     3.4 If requested, HIAT III shall deliver to High Yield or its designee (a)
at the Closing, a list, certified by its Secretary, of the names, addresses and
taxpayer identification numbers of the HIAT III Shareholders and the number and
percentage ownership of outstanding HIAT III shares owned by each such HIAT III
Shareholder, all as of the Valuation Date, and (b) as soon as practicable after
the Closing, all original documentation (including Internal Revenue Service
forms, certificates, certifications and correspondence) relating to the HIAT
III Shareholders' taxpayer identification numbers and their liability for or
exemption from back-up withholding. High Yield shall issue and deliver to such
Secretary a confirmation evidencing delivery of High Yield Shares to be
credited on the Closing Date to HIAT III or provide evidence satisfactory to
HIAT III that such High Yield Shares have been credited to HIAT III's account
on the books of High Yield. At the Closing, each party shall deliver to the
other such bills of sale, checks, assignments, share certificates, if any,
receipts or other documents as such other party or its counsel may reasonably
request.

4. COVENANTS OF HIGH YIELD AND HIAT III

     4.1 Except as otherwise expressly provided herein with respect to HIAT
III, High Yield and HIAT III each will operate its business in the ordinary
course between the date hereof and the Closing Date, it being understood that
such ordinary course of business will include customary dividends and other
distributions.

     4.2 High Yield will prepare and file with the Securities and Exchange
Commission ("Commission") a registration statement on Form N-14 under the
Securities Act of 1933, as amended ("1933 Act"), relating to High Yield Shares
("Registration Statement"). HIAT III will provide High Yield with the Proxy
Materials as described in paragraph 4.3 below, for inclusion in the
Registration Statement. HIAT III will further provide High Yield with such
other information and documents relating to HIAT III as are reasonably
necessary for the preparation of the Registration Statement.

     4.3 HIAT III will call a meeting of its shareholders to consider and act
upon this Agreement and to take all other action necessary to obtain approval
of the transactions contemplated herein. HIAT III will prepare the notice of
meeting, form of proxy and proxy statement (collectively, "Proxy Materials") to
be used in connection with such meeting; provided that High Yield will furnish
HIAT III with its currently effective prospectus for inclusion in the Proxy
Materials and with such other information relating to High Yield as is
reasonably necessary for the preparation of the Proxy Materials.

     4.4 HIAT III will assist High Yield in obtaining such information as High
Yield reasonably requests concerning the beneficial ownership of HIAT III
shares.


                                      A-4


     4.5 Subject to the provisions of this Agreement, High Yield and HIAT III
will each take, or cause to be taken, all action, and do or cause to be done,
all things reasonably necessary, proper or advisable to consummate and make
effective the transactions contemplated by this Agreement.


     4.6 HIAT III shall furnish or cause to be furnished to High Yield within
30 days after the Closing Date a statement of HIAT III's assets and liabilities
as of the Closing Date, which statement shall be certified by HIAT III's
Treasurer and shall be in accordance with generally accepted accounting
principles consistently applied. As promptly as practicable, but in any case
within 60 days after the Closing Date, HIAT III shall furnish High Yield, in
such form as is reasonably satisfactory to High Yield, a statement certified by
HIAT III's Treasurer of earnings and profits of HIAT III for Federal income tax
purposes that will be carried over to High Yield pursuant to Section 381 of the
Code.

     4.7 As soon after the Closing Date as is reasonably practicable, HIAT III
(a) shall prepare and file all Federal and other tax returns and reports of
HIAT III required by law to be filed with respect to all periods ending on or
before the Closing Date but not theretofore filed and (b) shall pay all Federal
and other taxes shown as due thereon and/or all Federal and other taxes that
were unpaid as of the Closing Date, including without limitation, all taxes for
which the provision for payment was made as of the Closing Date (as represented
in paragraph 5.2(k)).

     4.8 High Yield agrees to use all reasonable efforts to obtain the
approvals and authorizations required by the 1933 Act and the 1940 Act and to
make such filings required by the state Blue Sky and securities laws as it may
deem appropriate in order to continue its operations after the Closing Date.

5. REPRESENTATIONS AND WARRANTIES

     5.1 High Yield represents and warrants to HIAT III as follows:

         (a) High Yield is a validly existing Maryland corporation with full
     power to carry on its business as presently conducted;

         (b) High Yield is a duly registered, open-end, management investment
     company, and its registration with the Commission as an investment company
     under the 1940 Act and the registration of its shares under the 1933 Act
     are in full force and effect;

         (c) All of the issued and outstanding shares of High Yield have been
     offered and sold in compliance in all material respects with applicable
     registration requirements of the 1933 Act and state securities laws. Shares
     of High Yield are registered in all jurisdictions in which they are
     required to be registered under state securities laws and other laws, and
     said registrations, including any periodic reports or supplemental filings,
     are complete and current, all fees required to be paid have been paid, and
     High Yield is not subject to any stop order and is fully qualified to sell
     its shares in each state in which its shares have been registered;

         (d) The current Prospectus and Statement of Additional Information of
     High Yield conform in all material respects to the applicable requirements
     of the 1933 Act and the 1940 Act and the regulations thereunder and do not
     include any untrue statement of a material fact or omit to state any
     material fact required to be stated therein or necessary to make the
     statements therein, in light of the circumstances under which they were
     made, not misleading;


                                      A-5


         (e) High Yield is not in, and the execution, delivery and performance
     of this Agreement will not result in a, material violation of any provision
     of High Yield's Articles of Incorporation or By-Laws or of any agreement,
     indenture, instrument, contract, lease or other undertaking to which High
     Yield is a party or by which it is bound;

         (f) No litigation or administrative proceeding or investigation of or
     before any court or governmental body is presently pending or, to its
     knowledge, threatened against High Yield or any of its properties or assets
     which, if adversely determined, would materially and adversely affect its
     financial condition or the conduct of its business; and High Yield knows of
     no facts that might form the basis for the institution of such proceedings
     and is not a party to or subject to the provisions of any order, decree or
     judgment of any court or governmental body which materially and adversely
     affects, or is reasonably likely to materially and adversely effect, its
     business or its ability to consummate the transactions herein contemplated;

         (g) The Statement of Assets and Liabilities, Statement of Operations,
     Statement of Changes in Net Assets and Financial Highlights for the year
     ended _________, 2002, of High Yield audited by Deloitte & Touche LLP
     (copies of which have been furnished to HIAT III), fairly present, in all
     material respects, High Yield's financial condition as of such date in
     accordance with generally accepted accounting principles, and its results
     of such operations, changes in its net assets and financial highlights for
     such period, and as of such date there were no known liabilities of High
     Yield (contingent or otherwise) not disclosed therein that would be
     required in accordance with generally accepted accounting principles to be
     disclosed therein;

         (h) All issued and outstanding High Yield Shares are, and at the
     Closing Date will be, duly and validly issued and outstanding, fully paid
     and nonassessable with no personal liability attaching to the ownership
     thereof, except as set forth under the caption "Capital Stock and Other
     Securities" in High Yield's current Statement of Additional Information
     incorporated by reference in the Statement of Additional Information to the
     Registration Statement. High Yield does not have outstanding any options,
     warrants or other rights to subscribe for or purchase any of its shares;

         (i) The execution, delivery and performance of this Agreement have been
     duly authorized by all necessary action on the part of High Yield, and this
     Agreement constitutes a valid and binding obligation of High Yield
     enforceable in accordance with its terms, subject as to enforcement, to
     bankruptcy, insolvency, reorganization, moratorium and other laws relating
     to or affecting creditors rights and to general equity principles. No other
     consents, authorizations or approvals are necessary in connection with High
     Yield's performance of this Agreement;

         (j) High Yield Shares to be issued and delivered to HIAT III, for the
     account of the HIAT III Shareholders, pursuant to the terms of this
     Agreement will at the Closing Date have been duly authorized and, when so
     issued and delivered, will be duly and validly issued High Yield Shares,
     and will be fully paid and non-assessable with no personal liability
     attaching to the ownership thereof, except as set forth under the caption
     "Capital Stock and Other Securities" in High Yield's current Statement of
     Additional Information incorporated by reference in the Statement of
     Additional Information to the Registration Statement;

         (k) All material Federal and other tax returns and reports of High
     Yield required by law to be filed on or before the Closing Date have been
     filed and are correct, and all Federal and other taxes shown as due or
     required to be shown as due on said returns and reports have been paid or
     provision has been made for the payment thereof, and to the best of High
     Yield's knowledge, no such return is currently under audit and no
     assessment has been asserted with respect to any such return;


                                      A-6


         (l) For each taxable year since its inception, High Yield has met the
     requirements of Subchapter M of the Code for qualification and treatment as
     a "regulated investment company" and neither the execution or delivery of
     nor the performance of its obligations under this Agreement will adversely
     affect, and no other events are reasonably likely to occur which will
     adversely affect the ability of High Yield to continue to meet the
     requirements of Subchapter M of the Code;

         (m) Since August 31, 2002 there has been no change by High Yield in
     accounting methods, principles, or practices, including those required by
     generally accepted accounting principles;

         (n) The information furnished or to be furnished by High Yield for use
     in registration statements, proxy materials and other documents which may
     be necessary in connection with the transactions contemplated hereby shall
     be accurate and complete in all material respects and shall comply in all
     material respects with Federal securities and other laws and regulations
     applicable thereto; and

         (o) The Proxy Materials to be included in the Registration Statement
     (only insofar as they relate to High Yield) will, on the effective date of
     the Registration Statement and on the Closing Date, not contain any untrue
     statement of a material fact or omit to state a material fact required to
     be stated therein or necessary to make the statements therein, in light of
     the circumstances under which such statements were made, not materially
     misleading.

     5.2 HIAT III represents and warrants to High Yield as follows:

         (a) HIAT III is a series of a validly existing Massachusetts business
     trust with full power to carry on its business as presently conducted;

         (b) HIAT III is a duly registered, closed-end, management investment
     company, and its registration with the Commission as an investment company
     under the 1940 Act is in full force and effect;

         (c) All of the issued and outstanding shares of beneficial interest of
     HIAT III have been offered and sold in compliance in all material respects
     with applicable requirements of the 1933 Act and state securities laws.
     Shares of HIAT III are registered in all jurisdictions in which they are
     required to be registered and said registrations, including any periodic
     reports or supplemental filings, are complete and current, all fees
     required to be paid have been paid, and HIAT III is not subject to any stop
     order and is fully qualified to sell its shares in each state in which its
     shares have been registered;

         (d) The Registration Statement of HIAT III on Form N-2 conformed in all
     material respects to the applicable requirements of the 1933 Act and the
     1940 Act and the regulations thereunder and did not include any untrue
     statement of a material fact or omit to state any material fact required to
     be stated therein or necessary to make the statements therein, in light of
     the circumstances under which they were made, not misleading;

         (e) HIAT III is not, and the execution, delivery and performance of
     this Agreement will not result, in a material violation of any provision of
     HIAT III's Declaration of Trust or By-Laws or of any agreement, indenture,
     instrument, contract, lease or other undertaking to which HIAT III is a
     party or by which it is bound;

         (f) No litigation or administrative proceeding or investigation of or
     before any court or governmental body is presently pending or, to its
     knowledge, threatened against HIAT III or any of its properties or assets
     which, if adversely determined, would materially and adversely affect its
     financial condition or the conduct of its business; and HIAT III knows of
     no facts that might form the basis for the institution of such proceedings
     and is not a party to or subject to the provisions of any order, decree or
     judgment of any court or governmental body which materially and adversely
     affects, or is reasonably likely to materially and adversely effect, its
     business or its ability to consummate the transactions herein contemplated;



                                      A-7


         (g) The Statement of Assets and Liabilities, Statement of Operations,
     Statement of Changes in Net Assets and Financial Highlights of HIAT III for
     the year ended January 31, 2002, audited by Deloitte & Touche LLP (copies
     of which have been or will be furnished to High Yield) fairly present, in
     all material respects, HIAT III's financial condition as of such date, and
     its results of operations, changes in its net assets and financial
     highlights for such period in accordance with generally accepted accounting
     principles, and as of such date there were no known liabilities of HIAT III
     (contingent or otherwise) not disclosed therein that would be required in
     accordance with generally accepted accounting principles to be disclosed
     therein;

         (h) HIAT III has no material contracts or other commitments (other than
     this Agreement) that will be terminated with liability to it prior to the
     Closing Date;

         (i) All issued and outstanding shares of HIAT III are, and at the
     Closing Date will be, duly and validly issued and outstanding, fully paid
     and nonassessable with no personal liability attaching to the ownership
     thereof, except as set forth under the caption "The Reorganization --
     Description of Shares of High Yield and HIAT III and the Organization of
     the Two Funds" in this Proxy Statement and Prospectus. HIAT III does not
     have outstanding any options, warrants or other rights to subscribe for or
     purchase any of its shares, nor is there outstanding any security
     convertible to any of its shares. All such shares will, at the time of
     Closing, be held by the persons and in the amounts set forth in the list of
     shareholders submitted to High Yield pursuant to paragraph 3.4;

         (j) The execution, delivery and performance of this Agreement will have
     been duly authorized prior to the Closing Date by all necessary action on
     the part of HIAT III, and subject to the approval of HIAT III's
     shareholders, this Agreement constitutes a valid and binding obligation of
     HIAT III, enforceable in accordance with its terms, subject as to
     enforcement to bankruptcy, insolvency, reorganization, moratorium and other
     laws relating to or affecting creditors rights and to general equity
     principles. No other consents, authorizations or approvals are necessary in
     connection with HIAT III's performance of this Agreement;

         (k) All material Federal and other tax returns and reports of HIAT III
     required by law to be filed on or before the Closing Date shall have been
     filed and are correct and all Federal and other taxes shown as due or
     required to be shown as due on said returns and reports have been paid or
     provision has been made for the payment thereof, and to the best of HIAT
     III's knowledge, no such return is currently under audit and no assessment
     has been asserted with respect to any such return;

         (l) For each taxable year since its inception, HIAT III, has met all
     the requirements of Subchapter M of the Code for qualification and
     treatment as a "regulated investment company" and neither the execution or
     delivery of nor the performance of its obligations under this Agreement
     will adversely affect, and no other events are reasonably likely to occur
     which will adversely affect the ability of HIAT III to continue to meet the
     requirements of Subchapter M of the Code;

         (m) At the Closing Date, HIAT III will have good and valid title to the
     HIAT III Assets, subject to no liens (other than the obligation, if any, to
     pay the purchase price of portfolio securities purchased by HIAT III which
     have not settled prior to the Closing Date), security interests or other
     encumbrances, and full right, power and authority to assign, deliver and
     otherwise transfer such assets hereunder, and upon delivery and payment for
     such assets, High Yield will acquire good and marketable title thereto,
     subject to no restrictions on the full transfer thereof, including any
     restrictions as might arise under the 1933 Act;

         (n) On the effective date of the Registration Statement, at the time of
     the meeting of HIAT III's shareholders and on the Closing Date, the Proxy
     Materials (exclusive of the currently effective High Yield Prospectus
     contained therein) will (i) comply in all material respects with the
     provisions of the 1933 Act,


                                      A-8


     the Securities Exchange Act of 1934, as amended ("1934 Act") and the 1940
     Act and the regulations thereunder and (ii) not contain any untrue
     statement of a material fact or omit to state a material fact required to
     be stated therein or necessary to make the statements therein not
     misleading. Any other information furnished by HIAT III for use in the
     Registration Statement or in any other manner that may be necessary in
     connection with the transactions contemplated hereby shall be accurate and
     complete and shall comply in all material respects with applicable Federal
     securities and other laws and regulations thereunder;

         (o) HIAT III will, on or prior to the Valuation Date, declare one or
     more dividends or other distributions to shareholders that, together with
     all previous dividends and other distributions to shareholders, shall have
     the effect of distributing to the shareholders all of its investment
     company taxable income and net capital gain, if any, through the Valuation
     Date (computed without regard to any deduction for dividends paid);

         (p) HIAT III has maintained or has caused to be maintained on its
     behalf all books and accounts as required of a registered investment
     company in compliance with the requirements of Section 31 of the 1940 Act
     and the Rules thereunder; and

         (q) HIAT III is not acquiring High Yield Shares to be issued hereunder
     for the purpose of making any distribution thereof other than in accordance
     with the terms of this Agreement.

6. CONDITIONS PRECEDENT TO OBLIGATIONS OF HIAT III

     The obligations of HIAT III to consummate the transactions provided for
herein shall be subject, at its election, to the performance by High Yield of
all the obligations to be performed by it hereunder on or before the Closing
Date and, in addition thereto, the following conditions:

     6.1 All representations and warranties of High Yield contained in this
Agreement shall be true and correct in all material respects as of the date
hereof and, except as they may be affected by the transactions contemplated by
this Agreement, as of the Closing Date with the same force and effect as if
made on and as of the Closing Date;

     6.2 High Yield shall have delivered to HIAT III, a certificate of its
President and Treasurer, in a form reasonably satisfactory to HIAT III and
dated as of the Closing Date, to the effect that the representations and
warranties of High Yield made in this Agreement are true and correct at and as
of the Closing Date, except as they may be affected by the transactions
contemplated by this Agreement, and as to such other matters as HIAT III shall
reasonably request;

     6.3 HIAT III shall have received a favorable opinion from Mayer, Brown,
Rowe & Maw, counsel to High Yield, dated as of the Closing Date, to the effect
that:

         (a) High Yield is a validly existing Maryland corporation, and has the
     power to own all of its properties and assets and to carry on its business
     as presently conducted (Maryland counsel may be relied upon in delivering
     such opinion); (b) High Yield is a duly registered, open-end, management
     investment company, and its registration with the Commission as an
     investment company under the 1940 Act is in full force and effect; (c) this
     Agreement has been duly authorized, executed and delivered by High Yield
     and, assuming that the Registration Statement complies with the 1933 Act,
     the 1934 Act and the 1940 Act and regulations thereunder and assuming due
     authorization, execution and delivery of this Agreement by HIAT III, is a
     valid and binding obligation of High Yield enforceable against High Yield
     in accordance with its terms, subject as to enforcement, to bankruptcy,
     insolvency, reorganization, moratorium and other laws relating to or
     affecting creditors rights and to general equity principles; (d) High Yield
     Shares to be


                                      A-9


     issued to HIAT III Shareholders as provided by this Agreement are duly
     authorized and upon such delivery will be validly issued, fully paid and
     non-assessable (except as set forth under the caption "Capital Stock and
     Other Securities" in High Yield's Statement of Additional Information), and
     no shareholder of High Yield has any preemptive rights to subscription or
     purchase in respect thereof (Maryland counsel may be relied upon in
     delivering such opinion); (e) the execution and delivery of this Agreement
     did not, and the consummation of the transactions contemplated hereby will
     not, violate High Yield's Articles of Incorporation or By-Laws (Maryland
     counsel may be relied upon in delivering such opinion); and (f) to the
     knowledge of such counsel, no consent, approval, authorization or order of
     any court or governmental authority of the United States or any state is
     required for the consummation by High Yield of the transactions
     contemplated herein, except such as have been obtained under the 1933 Act,
     the 1934 Act and the 1940 Act and such as may be required under state
     securities laws; and

     6.4 As of the Closing Date, there shall have been no material change in
the investment objective, policies and restrictions nor any increase in the
investment management fees from those described in High Yield's Prospectus
dated     and Statement of Additional Information dated    .

7. CONDITIONS PRECEDENT TO OBLIGATIONS OF HIGH YIELD

     The obligations of High Yield to complete the transactions provided for
herein shall be subject, at its election, to the performance by HIAT III of all
the obligations to be performed by it hereunder on or before the Closing Date
and, in addition thereto, the following conditions:

     7.1 All representations and warranties of HIAT III contained in this
Agreement shall be true and correct in all material respects as of the date
hereof and, except as they may be affected by the transactions contemplated by
this Agreement, as of the Closing Date with the same force and effect as if
made on and as of the Closing Date;

     7.2 HIAT III shall have delivered to High Yield at the Closing a
certificate of its President and its Treasurer, in form and substance
satisfactory to High Yield and dated as of the Closing Date, to the effect that
the representations and warranties of HIAT III made in this Agreement are true
and correct at and as of the Closing Date, except as they may be affected by
the transactions contemplated by this Agreement, and as to such other matters
as High Yield shall reasonably request;

     7.3 HIAT III shall have delivered to High Yield a statement of the HIAT
III Assets and its liabilities, together with a list of HIAT III's portfolio
securities and other assets showing the respective adjusted bases and holding
periods thereof for income tax purposes, as of the Closing Date, certified by
the Treasurer of HIAT III;

     7.4 HIAT III shall have delivered to High Yield within three business days
after the Closing (a) a letter from PricewaterhouseCoopers LLP with respect to
the taxable year ended January 31, 2000, and a letter from Deloitte & Touche
for the taxable years ended January 31, 2001 and 2002, each dated as of the
Closing Date stating that such respective firm has performed a limited review of
the Federal and state income tax returns of HIAT III for each of the respective
taxable years and, based on such limited review, nothing came to their attention
that caused them to believe that such returns did not properly reflect, in all
material respects, the Federal and state income tax liabilities of HIAT III for
the periods covered thereby; (b) a letter from Deloitte & Touche LLP dated as of
the date of the Closing Date stating that for the period from January 31, 2002
to and including the Closing Date, Deloitte & Touche LLP has performed a limited
review (based on unaudited financial data) to ascertain the amount of applicable
Federal, state and local taxes and has determined that same either have been
paid or reserves have been established for payment of such taxes, and, based on
such limited review, nothing came to their attention that caused them to believe
that the taxes paid or reserves set aside for payment of such taxes were not
adequate in all material respects for the satisfaction of all Federal, state and
local tax liabilities for the period from January 31, 2002 to and including the
Closing Date. Each respective letter shall contain a statement that based on
such limited reviews, nothing


                                      A-10


came to their respective attention that caused them to believe that HIAT III
would not qualify as a regulated investment company for Federal income tax
purposes for any such year or period;

     7.5 High Yield shall have received at the Closing a favorable opinion from
Mayer, Brown, Rowe & Maw, counsel to HIAT III, dated as of the Closing Date to
the effect that:

         (a) HIAT III is a validly existing Massachusetts business trust and has
     the power to own all of its properties and assets and to carry on its
     business as presently conducted (Massachusetts counsel may be relied upon
     in delivering such opinion); (b) HIAT III is a duly registered, closed-end,
     management investment company under the 1940 Act, and its registration with
     the Commission as an investment company under the 1940 Act is in full force
     and effect; (c) this Agreement has been duly authorized, executed and
     delivered by HIAT III and, assuming that the Registration Statement
     complies with the 1933 Act, the 1934 Act and the 1940 Act and the
     regulations thereunder and assuming due authorization, execution and
     delivery of this Agreement by High Yield, is a valid and binding obligation
     of HIAT III enforceable against HIAT III in accordance with its terms,
     subject as to enforcement, to bankruptcy, insolvency, reorganization,
     moratorium and other laws relating to or affecting creditors rights and to
     general equity principles; (d) the execution and delivery of this Agreement
     did not, and the consummation of the transactions contemplated hereby will
     not, violate HIAT III's Declaration of Trust or By-Laws (Massachusetts
     counsel may be relied upon in delivering such opinion); and (e) to the
     knowledge of such counsel, no consent, approval, authorization or order of
     any court or governmental authority of the United States or any state is
     required for the consummation by HIAT III of the transactions contemplated
     herein, except such as have been obtained under the 1933 Act, the 1934 Act
     and the 1940 Act and such as may be required under state securities laws;
     and

     7.6 High Yield shall receive from the Investment Manager an agreement to
indemnify High Yield against any losses, claims and expenses associated with
the litigation that has been initiated against HIAT III in a form reasonably
satisfactory to High Yield.

     7.7 On the Closing Date, the HIAT III Assets shall include no assets that
High Yield, by reason of limitations of the fund's Articles of Incorporation or
otherwise, may not properly acquire.

8. FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF HIGH YIELD AND HIAT III

     The obligations of HIAT III and High Yield hereunder are each subject to
the further conditions that on or before the Closing Date:

     8.1 This Agreement and the transactions contemplated herein shall have
been approved by the requisite vote of the holders of the outstanding shares of
HIAT III in accordance with the provisions of HIAT III's Declaration of Trust,
and certified copies of the resolutions evidencing such approval shall have
been delivered to High Yield;

     8.2 On the Closing Date, no action, suit or other proceeding shall be
pending before any court or governmental agency in which it is sought to
restrain or prohibit, or obtain damages or other relief in connection with,
this Agreement or the transactions contemplated herein;

     8.3 All consents of other parties and all other consents, orders and
permits of Federal, state and local regulatory authorities (including those of
the Commission and of state Blue Sky and securities authorities, including
"no-action" positions of and exemptive orders from such Federal and state
authorities) deemed necessary by High Yield or HIAT III to permit consummation,
in all material respects, of the transactions contemplated herein shall have
been obtained, except where failure to obtain any such consent, order or permit
would not involve risk of a material adverse effect on the assets or properties
of High Yield or HIAT III;


                                      A-11


     8.4 The Registration Statement shall have become effective under the 1933
Act, no stop orders suspending the effectiveness thereof shall have been issued
and, to the best knowledge of the parties hereto, no investigation or
proceeding for that purpose shall have been instituted or be pending,
threatened or contemplated under the 1933 Act;


     8.5 HIAT III shall have declared and paid a dividend or dividends and/or
other distribution or distributions that, together with all previous such
dividends or distributions, shall have the effect of distributing to the HIAT
III Shareholders all of HIAT III's investment company taxable income (computed
without regard to any deduction for dividends paid) and all of its net capital
gain (after reduction for any capital loss carry-forward and computed without
regard to any deduction for dividends paid) for all taxable years ending on or
before the Closing Date; and

     8.6 The parties shall have received the opinion of the law firm of Mayer,
Brown, Rowe & Maw (based on such representations as such law firm shall
reasonably request), addressed to High Yield and HIAT III, which opinion may be
relied upon by the shareholders of HIAT III, substantially to the effect that,
for Federal income tax purposes:

         (a) The transfer of HIAT III's assets in exchange for High Yield Shares
     and the assumption by High Yield of certain stated liabilities of HIAT III
     followed by the distribution by HIAT III of High Yield Shares to the HIAT
     III Shareholders in exchange for their HIAT III shares pursuant to and in
     accordance with the terms of the Reorganization Agreement will constitute a
     "reorganization" within the meaning of Section 368(a)(1)(C) of the Code,
     and HIAT III and High Yield will each be a "party to a reorganization"
     within the meaning of Section 368(b) of the Code;

         (b) No gain or loss will be recognized by High Yield upon the receipt
     of the assets of HIAT III solely in exchange for High Yield Shares and the
     assumption by High Yield of the stated liabilities of HIAT III;

         (c) No gain or loss will be recognized by HIAT III upon the transfer of
     the assets of HIAT III to High Yield in exchange for High Yield Shares and
     the assumption by High Yield of the stated liabilities or upon the
     distribution of High Yield Shares to the HIAT III Shareholders in exchange
     for their HIAT III shares;

         (d) No gain or loss will be recognized by the HIAT III Shareholders
     upon the exchange of the HIAT III shares for High Yield Shares;

         (e) The aggregate tax basis for High Yield Shares received by each HIAT
     III Shareholder pursuant to the reorganization will be the same as the
     aggregate tax basis of the HIAT III Shares held by each such HIAT III
     Shareholder immediately prior to the Reorganization;

         (f) The holding period of High Yield Shares to be received by each HIAT
     III Shareholder will include the period during which the HIAT III Shares
     surrendered in exchange therefor were held (provided such HIAT III Shares
     were held as capital assets on the date of the Reorganization);

         (g) The tax basis of the assets of HIAT III acquired by High Yield will
     be the same as the tax basis of such assets to HIAT III immediately prior
     to the Reorganization; and

         (h) The holding period of the assets of HIAT III in the hands of High
     Yield will include the period during which those assets were held by HIAT
     III.

     Notwithstanding anything herein to the contrary, neither High Yield nor
HIAT III may waive the conditions set forth in this paragraph 8.6.


                                      A-12


9. FEES AND EXPENSES

     9.1 (a) High Yield shall bear its expenses incurred in connection with the
entering into, and carrying out of, the provisions of this Agreement, including
legal, accounting, Commission registration fees and Blue Sky expenses. HIAT III
shall bear, as set forth in the Proxy Statement and Prospectus contained in the
Registration Statement, its expenses incurred in connection with the entering
into and carrying out of the provisions of this Agreement, including legal and
accounting fees, printing, filing and proxy solicitation expenses incurred in
connection with the consummation of the transactions contemplated herein. HIAT
III shall bear any other expenses in connection with the provisions of this
Agreement including certain other legal and accounting fees and portfolio
transfer taxes (if any) incurred in connection with the consummation of the
transactions contemplated herein.

     (b) In the event the transactions contemplated herein are not consummated
by reason of HIAT III being either unwilling or unable to go forward (other
than by reason of the nonfulfillment or failure of any condition to HIAT III's
obligations specified in this Agreement), HIAT III's only obligation hereunder
shall be to reimburse High Yield for all reasonable out-of-pocket fees and
expenses incurred by High Yield in connection with those transactions.

     (c) In the event the transactions contemplated herein are not consummated
by reason of High Yield being either unwilling or unable to go forward (other
than by reason of the nonfulfillment or failure of any condition to High
Yield's obligations specified in this Agreement), High Yield's only obligation
hereunder shall be to reimburse HIAT III for all reasonable out-of-pocket fees
and expenses incurred by HIAT III in connection with those transactions.

10. ENTIRE AGREEMENT, SURVIVAL OF WARRANTIES

     10.1 This Agreement constitutes the entire agreement between the parties.

     10.2 The representations, warranties and covenants contained in this
Agreement or in any document delivered pursuant hereto or in connection
herewith shall survive the consummation of the transactions contemplated
herein, except that the representations, warranties and covenants of HIAT III
hereunder shall not survive the dissolution and complete liquidation of HIAT
III in accordance with Section 1.9.

11. TERMINATION

     11.1 This Agreement may be terminated and the transactions contemplated
hereby may be abandoned at any time prior to the Closing:

         (a) by the mutual written consent of HIAT III and High Yield;

         (b) by either High Yield or HIAT III by notice to the other, without
     liability to the terminating party on account of such termination
     (providing the terminating party is not otherwise in material default or
     breach of this Agreement) if the Closing shall not have occurred on or
     before March 31, 2003; or

         (c) by either High Yield or HIAT III in writing without liability to
     the terminating party on account of such termination (provided the
     terminating party is not otherwise in material default or breach of this
     Agreement), if (i) the other party shall fail to perform in any material
     respect its agreements contained herein required to be performed on or
     prior to the Closing Date, (ii) the other party materially breaches any of
     its representations, warranties or covenants contained herein, (iii) the
     HIAT III shareholders fail to approve this Agreement at any meeting called
     for such purpose at which a quorum was present or (iv) any other condition
     herein expressed to be precedent to the obligations of the terminating
     party has not been met and it reasonably appears that it will not or cannot
     be met.


                                      A-13


     11.2 (a) Termination of this Agreement pursuant to paragraphs 11.1 (a) or
(b) shall terminate all obligations of the parties hereunder and there shall be
no liability for damages on the part of High Yield or HIAT III, or the trustees
or officers of High Yield or HIAT III, to any other party or its trustees or
officers.

         (b) Termination of this Agreement pursuant to paragraph 11.1 (c) shall
     terminate all obligations of the parties hereunder and there shall be no
     liability for damages on the part of High Yield or HIAT III, or the
     trustees or officers of High Yield or HIAT III, except that any party in
     breach of this Agreement shall, upon demand, reimburse the non-breaching
     party for all reasonable out-of-pocket fees and expenses incurred in
     connection with the transactions contemplated by this Agreement, including
     legal, accounting and filing fees.

12. AMENDMENTS

     This Agreement may be amended, modified or supplemented in such manner as
may be mutually agreed upon in writing by the parties.

13. MISCELLANEOUS

     13.1 The article and paragraph headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.

     13.2 This Agreement may be executed in any number of counterparts, each of
which shall be deemed an original.

     13.3 This Agreement shall be governed by and construed in accordance with
the laws of the [Commonwealth of Massachusetts].

     13.4 This Agreement shall bind and inure to the benefit of the parties
hereto and their respective successors and assigns, but no assignment or
transfer hereof or of any rights or obligations hereunder shall be made by any
party without the written consent of the other party. Nothing herein expressed
or implied is intended or shall be construed to confer upon or give any person,
firm or corporation, other than the parties hereto and their respective
successors and assigns, any rights or remedies under or by reason of this
Agreement.

     13.5 The obligations and liabilities of High Yield hereunder are solely
those of High Yield. It is expressly agreed that no shareholder, nominee,
trustee, officer, agent, or employee of High Yield shall be personally liable
hereunder. The execution and delivery of this Agreement have been authorized by
the trustees of High Yield and signed by authorized officers of High Yield
acting as such, and neither such authorization by such trustees nor such
execution and delivery by such officers shall be deemed to have been made by
any of them individually or to impose any liability on any of them personally.

     13.6 The obligations and liabilities of HIAT III hereunder are solely
those of HIAT III. It is expressly agreed that no shareholder, nominee,
trustee, officer, agent, or employee of HIAT III shall be personally liable
hereunder. The execution and delivery of this Agreement have been authorized by
the trustees of HIAT III and signed by authorized officers of HIAT III acting
as such, and neither such authorization by such trustees nor such execution and
delivery by such officers shall be deemed to have been made by any of them
individually or to impose any liability on any of them personally.


                                      A-14


     IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement
to be executed by a duly authorized officer.



                                MORGAN STANLEY HIGH INCOME
                                ADVANTAGE TRUST III



                                By:
                                   ------------------------------
                                   Name:  Charles A. Fiumefreddo
                                   Title: Chairman



                                MORGAN STANLEY DEAN WITTER
                                HIGH YIELD SECURITIES INC.



                                By:
                                   ------------------------------
                                   Name:  Barry Fink
                                   Title: Vice President




                                      A-15












                                 Prospectus of

                           High Yield Securities Inc.

                            Dated ___________, 2002

                            To be Filed by Amendment
























                                Annual Report of

                           High Yield Securities Inc.

                             Dated August 31, 2002

                            To be Filed by Amendment















Morgan Stanley High Yield Securities Inc.
LETTER TO THE SHAREHOLDERS o FEBRUARY 28, 2002

Dear Shareholder:
The six-month period ended February 28, 2002, was a highly volatile one for the
high-yield market, especially after the terrorist attacks of September 11. These
events and the subsequent war on terrorism had a profound effect on the outlooks
for the economy and the financial markets. Despite a 50-basis-point reduction in
the federal funds rate, a flight to quality pushed high-yield security prices
sharply lower.

Within the high-yield sector, airlines, lodging and insurance, as well as
telecommunications and cable, experienced the largest sell-off in September.
Even sectors that held up relatively well, such as food, drugs, utilities and
energy, experienced price declines. Many telecommunications-related companies
also announced poor earnings and lower revenues, which pushed the whole sector
lower throughout much of the past six months. Relative performance was
particularly exaggerated for lower tier credits. The market recovered somewhat
in October and November, but then moved mostly sideways from December through
February. The market's recovery was of limited benefit to companies pushed into
default.

Credit spreads relative to U.S. Treasury securities in the high-yield market
remain at historically wide levels and came very close to reaching an all-time
peak in September. The spreads remained particularly wide within the lower-rated
portion of the market as investors continued to prefer the relatively higher
quality end of the market.

Performance and Portfolio Strategy
During the six-month period ended February 28, 2002, Morgan Stanley High Yield
Securities' Class A and D shares produced returns of -13.32 percent and -13.56
percent, respectively. The Fund underperformed the Lehman Brothers U.S.
Corporate High Yield Index, which returned -2.03 percent.* For the same period,
the Fund's Class B and C shares had total returns of -13.85 percent and -13.92
percent, respectively. The performance of the Fund's four share classes varies
because of differing expenses. Total return figures shown assume the
reinvestment of all distributions but do not reflect the deduction of any
applicable sales charges.

Over the past year, the Fund instituted several important changes to its
dividend policy. First, in May the Fund lowered its income dividend from $0.04
per share to $0.03 per share. In January 2002, the monthly income dividend was
lowered to $0.022 per share. The Fund moved from paying a fixed dividend rate to
one that fluctuates with the amount of income earned by the Fund. We believe
that adopting a fluctuating dividend policy will provide the Fund with greater
flexibility. Should the Fund experience additional defaults, the dividend amount
will be lower. Conversely, should the economy improve, defaults stabilize and
income levels increase, the Fund's dividend rate could rise.

- ----------------
* The Lehman Brothers U.S. Corporate High Yield Index tracks the performance of
all below investment-grade securities which have at least $100 million in
outstanding issuance, a maturity greater than one year, and are issued in
fixed-rate U.S. dollar denominations. The Index does not include any expenses,
fees or charges. The Index is unmanaged and should not be considered an
investment.



Morgan Stanley High Yield Securities Inc.
LETTER TO THE SHAREHOLDERS o FEBRUARY 28, 2002 CONTINUED

The Fund's position in the lower-rated portion of the market adversely affected
its relative performance. Allocations in fixed-line communications and to a
lesser extent in wireless communications were the major reasons for
disappointing performance. Fixed-line telecommunications was the weakest sector
during the past six months, down more than 30 percent. This sector's high
default rate and rating downgrades led investors to sell it as a sector, which
pushed prices lower. We have reduced the Fund's exposure to this sector over the
past year, but its higher than market weighting adversely affected overall Fund
performance.

Over the past year, the Fund's portfolio management team continued to reposition
it for the current market environment. The team initiated positions in more than
15 new companies, including Collins and Aikman, Stone Energy, Healthnet, Dana
Corp., Autonation and Equistar. The team also increased the overall credit
quality of the portfolio by buying BB-rated securities and trimming the Fund's
exposure to the telecommunications sector. The team continues to maintain
constructive positions in wireline and wireless communications, cable and media.
While many telecommunications issuers have had problems in this very challenging
environment, the team believes that investor sentiment has become excessively
negative. The team's value-oriented analysis suggests that this sector may be
poised for better performance in the months ahead.

Looking Ahead
As a result of the events of September 11, we believe that the economic
environment will be weaker in the early part of 2002 than previously
anticipated. We feel, however, that the current spread of the high-yield market
appears to be pricing in a more prolonged downturn with an extended period of
higher default rates than would be consistent with historical experience. We
consider that the monetary and fiscal policy moves that have already been
implemented are likely to bring the economy back to more normal growth levels,
which could lead to a recovery in the high-yield market. The Fund's portfolio is
positioned to participate in any potential recovery.

We appreciate your ongoing support of Morgan Stanley High Yield Securities and
look forward to continuing to serve your investment needs.

Very truly yours,

/s/ Charles A. Fiumefreddo               /s/ Mitchell M. Merin
Charles A. Fiumefreddo                   Mitchell M. Merin
CHAIRMAN OF THE BOARD                    PRESIDENT

                                       2



Morgan Stanley High Yield Securities Inc.
FUND PERFORMANCE o FEBRUARY 28, 2002


                          Average Annual Total Returns
- --------------------------------------------------------------------------------
                  Class A Shares*
- -----------------------------------------------------------------------
Period Ended 2/28/2002
- -------------------------
1 Year                         (32.07)%(1)    (34.95)%(2)
5 Years                        (11.46)%(1)    (12.22)%(2)
10 Years                        (0.42)%(1)     (0.86)%(2)

                 Class B Shares**
- -----------------------------------------------------------------------
Period Ended 2/28/2002
- -------------------------
1 Year                         (32.51)%(1)    (35.38)%(2)
Since Inception (7/28/1997)    (14.17)%(1)    (14.37)%(2)


                Class C Shares+
- -----------------------------------------------------------------------
Period Ended 2/28/2002
- -------------------------
1 Year                         (32.60)%(1)    (33.18)%(2)
Since Inception (7/28/1997)    (14.27)%(1)    (14.27)%(2)



                 Class D Shares++
- -----------------------------------------------------------------------
Period Ended 2/28/2002
- -------------------------
1 Year                         (32.03)%(1)
5 Years                        (11.35)%(1)
10 Years                        (0.24)%(1)

  PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE RETURNS. INVESTMENT RETURN AND
  PRINCIPAL VALUE WILL FLUCTUATE. WHEN YOU SELL FUND SHARES, THEY MAY BE WORTH
  LESS THAN THEIR ORIGINAL COST. THE TABLE DOES NOT REFLECT THE DEDUCTION OF
  TAXES THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF
  FUND SHARES.

  PRIOR TO JULY 28, 1997 THE FUND OFFERED ONLY ONE CLASS OF SHARES. BECAUSE THE
  DISTRIBUTION ARRANGEMENT FOR CLASS A MOST CLOSELY RESEMBELED THE DISTRIBUTION
  ARRANGEMENT APPLICABLE PRIOR TO THE IMPLEMENTATION OF MULTIPLE CLASSES (I.E.,
  CLASS A IS SOLD WITH A FRONT-END SALES CHARGE), HISTORICAL PERFORMANCE
  INFORMATION HAS BEEN RESTATED TO REFLECT THE ACTUAL MAXIMUM SALES CHARGE
  APPLICABLE TO CLASS A (I.E., 4.25%) AS COMPARED TO THE 5.50% SALES CHARGE IN
  EFFECT PRIOR TO JULY 28, 1997. IN ADDITION, CLASS A SHARES ARE NOW SUBJECT TO
  AN ONGOING 12B-1 FEE WHICH IS REFLECTED IN THE RESTATED PERFORMANCE FOR THAT
  CLASS.

  BECAUSE ALL SHARES OF THE FUND HELD PRIOR TO JULY 28, 1997 WERE DESIGNATED
  CLASS D SHARES, THE FUND'S HISTORICAL PERFORMANCE HAS BEEN RESTATED TO REFLECT
  THE ABSENCE OF ANY SALES CHARGE.
- ---------------------

(1)  FIGURE SHOWN ASSUMES REINVESTMENT OF ALL DISTRIBUTIONS AND DOES NOT REFLECT
     THE DEDUCTION OF ANY SALES CHARGES.
(2)  FIGURE SHOWN ASSUMES REINVESTMENT OF ALL DISTRIBUTIONS AND THE DEDUCTION OF
     THE MAXIMUM APPLICABLE SALES CHARGE. SEE THE FUND'S CURRENT PROSPECTUS FOR
     COMPLETE DETAILS ON FEES AND SALES CHARGES.
 *   THE MAXIMUM FRONT-END SALES CHARGE FOR CLASS A IS 4.25%.
**   THE MAXIMUM CONTINGENT DEFERRED SALES CHARGE (CDSC) FOR CLASS B IS 5.0%.
     THE CDSC DECLINES TO 0% AFTER SIX YEARS.
 +   THE MAXIMUM CDSC FOR CLASS C SHARES IS 1.0% FOR SHARES REDEEMED WITHIN ONE
     YEAR OF PURCHASE.
++   CLASS D SHARES HAVE NO SALES CHARGE.

                                       3

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED)



PRINCIPAL
AMOUNT IN                                                COUPON       MATURITY
THOUSANDS                                                 RATE          DATE         VALUE
- -----------------------------------------------------------------------------------------------
                                                                      
           Corporate Bonds (90.1%)
           ADVERTISING/MARKETING SERVICES (0.8%)
 $ 7,935   Interep National Radio Sales, Inc.
            (Series B).............................      10.00%        07/01/08    $  5,435,475
                                                                                   ------------
           AEROSPACE & DEFENSE (1.0%)
  11,195   Loral Space & Communications Ltd........       9.50         01/15/06       6,940,900
                                                                                   ------------
           AIRLINES (0.8%)
   8,100   Air Canada Corp.........................      10.25         03/15/11       5,184,000
                                                                                   ------------
           ALTERNATIVE POWER GENERATION (0.7%)
   6,035   Calpine Corp............................       8.50         02/15/11       4,346,129
                                                                                   ------------
           AUTO PARTS: O.E.M. (1.9%)
   1,630   Arvinmeritor............................       8.75         03/01/12       1,677,792
     715   Collins & Aikman Products...............      11.50         04/15/06         618,475
   3,160   Collins & Aikman Products - 144A*.......      10.75         12/31/11       3,025,700
   6,975   Dana Corp...............................       9.00         08/15/11       6,386,868
   4,760   Hayes Lammerz International, Inc.
            (Series B) (a)(b)......................       9.125        07/15/07         261,800
   7,210   Hayes Lemmerz International, Inc.
            (Series B) (a)(b)......................       8.25         12/15/08         396,550
                                                                                   ------------
                                                                                     12,367,185
                                                                                   ------------
           BROADCAST/MEDIA (1.5%)
   5,000   Jones International Networks Ltd........      11.75         07/01/05       2,543,750
  10,000   Tri-State Outdoor Media
            Group, Inc. (b)........................      11.00         05/15/08       7,100,000
                                                                                   ------------
                                                                                      9,643,750
                                                                                   ------------
           BROADCASTING (2.7%)
   1,600   Corus Entertainment Inc. - 144A*
            (Canada)...............................       8.75         03/01/12       1,586,976
   3,000   Radio One Inc. (Series B)...............       8.875        07/01/11       3,157,500
   5,600   Salem Communications Holdings Corp.
            (Series B).............................       9.00         07/01/11       5,824,000
   3,400   XM Satellite Radio Holdings Inc.........      14.00         03/15/10       2,448,000
   5,075   Young Broadcasting Inc..................      10.00         03/01/11       5,100,375
                                                                                   ------------
                                                                                     18,116,851
                                                                                   ------------
           CABLE/SATELLITE TV (9.7%)
   5,250   Adelphia Communications Corp............      10.875        10/01/10       5,565,000
   2,700   Adelphia Communications Corp.
            (Series B).............................      10.50         07/15/04       2,781,000
   2,700   Adelphia Communications Corp.
            (Series B).............................       7.75         01/15/09       2,511,000
  50,687   Australis Holdings Property Ltd.
            (Australia) (a)(b).....................      15.00         11/01/02         --
   5,350   British Sky Broadcasting Group PLC
            (United Kingdom).......................       6.875        02/23/09       5,124,337
   5,150   British Sky Broadcasting Group PLC
            (United Kingdom).......................       8.20         07/15/09       5,301,456
   9,805   Callahan Nordhein Westfalen (Germany)...      14.00         07/15/10       2,843,450
   4,275   Charter Communications Holding, Inc.....      13.50++       01/15/11       2,757,375
  10,410   Charter Communications Holdings/Charter
            Capital................................      11.75++       05/15/11       6,011,775
   6,650   CSC Holdings Inc. (Series B)............       7.625        04/01/11       6,480,372


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       4

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                               COUPON         MATURITY
THOUSANDS                                                RATE           DATE          VALUE
- -----------------------------------------------------------------------------------------------
                                                                               
 $19,000   Diva Systems Corp. (Series B)...........    12.625++%       03/01/08    $  3,040,000
   5,800   Echostar DBS Corp. - 144A*..............     9.125          01/15/09       5,879,750
  16,510   Knology Holdings, Inc...................    11.875++        10/15/07       5,943,600
   6,600   Ono Finance PLC (United Kingdom)........    13.00           05/01/09       3,564,000
     915   Pegasus Communications (Series B).......     9.75           12/01/06         667,950
   8,340   Telewest Communications PLC (United
            Kingdom)...............................     9.875          02/01/10       4,503,600
  11,525   United Pan-Europe Communications NV
            (Series B) (Netherlands) (b)...........    10.875          08/01/09       1,498,250
                                                                                   ------------
                                                                                     64,472,915
                                                                                   ------------
           CASINO/GAMING (1.6%)
  22,000   Aladdin Gaming Holdings/Capital Corp.
            (Series B).............................    13.50++         03/01/10         660,000
   2,400   Harrah's Operating Co., Inc.............     8.00           02/01/11       2,554,646
  24,035   Resorts At Summerlin (Series B)
            (a) (b)................................    13.00           12/15/07         --
   6,925   Station Casinos, Inc....................     8.375          02/15/08       7,141,406
                                                                                   ------------
                                                                                     10,356,052
                                                                                   ------------
           CELLULAR TELEPHONE (2.1%)
   2,230   Dobson/Sygnet Communications............    12.25           12/15/08       2,096,200
  29,800   Dolphin Telecom PLC (Series B) (United
            Kingdom) (a)...........................    14.00++         05/15/09           2,980
  25,025   Dolphin Telecom PLC (United
            Kingdom) (a)...........................    11.50++         06/01/08           2,502
   1,450   Nextel Communications, Inc..............    10.65++         09/15/07         913,500
  11,050   Nextel Partners Inc.....................    14.00++         02/01/09       5,193,500
   6,535   Tritel PCS Inc..........................    12.75++         05/15/09       5,685,450
                                                                                   ------------
                                                                                     13,894,132
                                                                                   ------------
           CHEMICALS: MAJOR DIVERSIFIED (1.2%)
   3,145   Equistar Chemical/Funding...............    10.125          09/01/08       3,145,000
   5,455   Huntsman ICI Chemicals..................    10.125          07/01/09       4,800,400
                                                                                   ------------
                                                                                      7,945,400
                                                                                   ------------
           CHEMICALS: SPECIALTY (1.8%)
   2,560   Acetex Corp. (Canada)...................    10.875          08/01/09       2,611,200
     850   ISP Chemco - 144A*......................    10.25           07/01/11         888,250
   5,030   ISP Holdings Inc. - 144A*...............    10.625          12/15/09       5,143,175
   1,725   Millennium America Inc..................     9.25           06/15/08       1,768,125
   1,625   OM Group Inc. - 144A*...................     9.25           12/15/11       1,677,812
                                                                                   ------------
                                                                                     12,088,562
                                                                                   ------------
           COMMERCIAL PRINTING/FORMS (0.8%)
  13,000   Premier Graphics Inc. (a)(b)............    11.50           12/01/05         390,000


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       5

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                              COUPON          MATURITY
THOUSANDS                                               RATE            DATE         VALUE
- -----------------------------------------------------------------------------------------------
                                                                     
 $ 4,265   Quebecor Media Inc. (Canada)............     11.125%        07/15/11   $  4,584,875
     935   Quebecor Media Inc. (Canada)............     13.75++        07/15/11        593,725
                                                                                  ------------
                                                                                     5,568,600
                                                                                  ------------
           CONSUMER/BUSINESS SERVICES (2.8%)
  13,000   Comforce Operating, Inc.................     12.00          12/01/07      8,060,000
   7,250   MDC Communications Corp. (Canada).......     10.50          12/01/06      5,582,500
   6,085   Muzak LLC/Muzak Finance.................      9.875         03/15/09      5,233,100
                                                                                  ------------
                                                                                    18,875,600
                                                                                  ------------
           CONTAINERS/PACKAGING (1.9%)
  10,000   LLS Corp. (b)...........................     11.625         08/01/09      1,000,000
  10,305   Owens-Illinois, Inc.....................      7.80          05/15/18      8,656,200
   2,640   Riverwood International Corp............     10.875         04/01/08      2,739,000
                                                                                  ------------
                                                                                    12,395,200
                                                                                  ------------
           DIVERSIFIED MANUFACTURING (3.1%)
   9,755   Eagle-Picher Industries, Inc............      9.375         03/01/08      6,340,750
  13,000   Jordan Industries, Inc. (Series B)......     10.375         08/01/07      7,540,000
  40,563   Jordan Industries, Inc. (Series B)......     11.75++        04/01/09      6,895,710
                                                                                  ------------
                                                                                    20,776,460
                                                                                  ------------
           DRUGSTORE CHAINS (0.5%)
   2,000   Rite Aid Corp...........................      6.875         08/15/13      1,110,000
   2,025   Rite Aid Corp...........................      7.70          02/15/27      1,134,000
   2,000   Rite Aid Corp. - 144A*..................      6.125         12/15/08      1,170,000
                                                                                  ------------
                                                                                     3,414,000
                                                                                  ------------
           ELECTRIC UTILITIES (1.1%)
   4,190   Mirant Americas General LLC.............      8.30          05/01/11      3,561,500
   3,785   PG&E National Energy Corp...............     10.375         05/16/11      3,860,700
                                                                                  ------------
                                                                                     7,422,200
                                                                                  ------------
           ELECTRONIC COMPONENTS (0.1%)
     760   Flextronics International Ltd.
            (Singapore)............................      9.875         07/01/10        813,200
                                                                                  ------------
           ELECTRONIC DISTRIBUTORS (0.9%)
   5,875   BRL Universal Equipment Corp............      8.875         02/15/08      5,992,500
  20,000   CHS Electronics, Inc. (a)(b)............      9.875         04/15/05        175,000
                                                                                  ------------
                                                                                     6,167,500
                                                                                  ------------
           ELECTRONIC EQUIPMENT/INSTRUMENTS (0.4%)
   8,280   High Voltage Engineering, Inc...........     10.75          08/15/04      2,898,000
                                                                                  ------------
           ELECTRONICS/APPLIANCES (0.0%)
  84,930   International Semi-Tech
            Microelectronics, Inc.
            (Canada) (a)(b)........................     11.50          08/15/03         42,465
                                                                                  ------------


                       SEE NOTES TO FINANCIAL STATEMENTS

                                      6

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                             COUPON          MATURITY
THOUSANDS                                              RATE             DATE          VALUE
- ----------------------------------------------------------------------------------------------
                                                                     
           ENGINEERING & CONSTRUCTION (0.8%)
 $ 4,500   Encompass Services Corp.................    10.50%          05/01/09   $  2,025,000
   6,575   Metromedia Fiber Network, Inc...........    10.00           12/15/09      1,578,000
   7,000   Metromedia Fiber Network, Inc.
            (Series B).............................    10.00           11/15/08      1,680,000
                                                                                  ------------
                                                                                     5,283,000
                                                                                  ------------
           ENTERTAINMENT & LEISURE (0.1%)
  10,850   AMF Bowling Worldwide Inc.
            (Series B) (b).........................    10.875          03/15/06        542,500
                                                                                  ------------
           ENVIRONMENTAL SERVICES (2.3%)
   6,750   Allied Waste North America, Inc.
            (Series B).............................    10.00           08/01/09      6,868,125
   8,550   Waste Management, Inc. (Series A).......     7.375          08/01/10      8,684,021
                                                                                  ------------
                                                                                    15,552,146
                                                                                  ------------
           FINANCE/RENTAL/LEASING (0.4%)
   2,330   CIT Group Inc...........................     5.625          05/17/04      2,238,161
     395   CIT Group Inc...........................     6.50           02/07/06        385,847
                                                                                  ------------
                                                                                     2,624,008
                                                                                  ------------
           FINANCIAL CONGLOMERATES (0.3%)
   2,100   Case Credit Corp........................     6.125          02/15/03      1,893,356
                                                                                  ------------
           FOOD DISTRIBUTORS (1.3%)
   8,890   Volume Services America, Inc............    11.25           03/01/09      8,612,187
                                                                                  ------------
           FOOD: MEAT/FISH/DAIRY (1.7%)
   4,755   Michael Foods Inc.......................    11.75           04/01/11      5,182,950
   5,200   Smithfield Foods Inc....................     7.625          02/15/08      5,200,000
     750   Smithfield Foods Inc....................     8.00           10/15/09        772,500
                                                                                  ------------
                                                                                    11,155,450
                                                                                  ------------
           FOREST PRODUCTS (2.0%)
   4,940   Louisiana Pacific Corp..................    10.875          11/15/08      4,964,700
   1,615   Louisiana Pacific Corp..................     8.875          08/15/10      1,607,259
   6,470   Tembec Industries Inc. (Canada).........     8.50           02/01/11      6,809,675
                                                                                  ------------
                                                                                    13,381,634
                                                                                  ------------
           HOME BUILDING (3.8%)
   6,945   Beazer Homes USA, Inc...................     8.625          05/15/11      7,309,612
   5,600   Centex Corp.............................     7.875          02/01/11      5,876,567
   6,195   Schuler Homes, Inc......................     9.375          07/15/09      6,566,700
     405   Schuler Homes, Inc......................    10.50           07/15/11        435,375
   5,000   Toll Corp...............................     8.25           02/01/11      5,075,000
                                                                                  ------------
                                                                                    25,263,254
                                                                                  ------------


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       7

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                              COUPON          MATURITY
THOUSANDS                                               RATE             DATE           VALUE
- ----------------------------------------------------------------------------------------------
                                                                     
           HOSPITAL/NURSING MANAGEMENT (1.0%)
 $ 6,365   HCA Inc.................................      7.875%        02/01/11   $  6,858,287
                                                                                  ------------
           HOTELS/RESORTS/CRUISELINES (1.1%)
  13,000   Epic Resorts LLC (Series B) (a)(b)......     13.00          06/15/05      1,300,000
   1,455   Hilton Hotels...........................      7.95          04/15/07      1,471,772
   4,800   HMH Properties (Series B)...............      7.875         08/01/08      4,656,000
                                                                                  ------------
                                                                                     7,427,772
                                                                                  ------------
           INDUSTRIAL SPECIALTIES (1.9%)
   4,935   Cabot Safety Corp.......................     12.50          07/15/05      5,083,050
   7,163   International Wire Group, Inc...........     11.75          06/01/05      5,667,724
   1,950   Ucar Finance Inc. - 144A*...............     10.25          02/15/12      2,003,625
                                                                                  ------------
                                                                                    12,754,399
                                                                                  ------------
           INTERNET SOFTWARE/SERVICES (1.5%)
  12,020   Exodus Communications Inc. (a)(b).......     11.625         07/15/10      2,494,150
  33,200   Globix Corp. (a)(b).....................     12.50          02/01/10      4,814,000
  11,000   PSINet, Inc. (a)(b).....................     10.50          12/01/06        990,000
  14,500   PSINet, Inc. (a)(b).....................     11.00          08/01/09      1,305,000
                                                                                  ------------
                                                                                     9,603,150
                                                                                  ------------
           MANAGED HEALTH CARE (1.7%)
   7,505   Aetna, Inc..............................      7.875         03/01/11      7,614,933
   3,290   Health Net, Inc.........................      8.375         04/15/11      3,389,993
                                                                                  ------------
                                                                                    11,004,926
                                                                                  ------------
           MEDIA CONGLOMERATES (0.7%)
   4,260   Nextmedia Operating, Inc. - 144A*.......     10.75          07/01/11      4,536,900
                                                                                  ------------
           MEDICAL DISTRIBUTORS (0.3%)
   1,935   Amerisource Bergen Corp.................      8.125         09/01/08      2,031,750
                                                                                  ------------
           MEDICAL SPECIALTIES (0.0%)
  26,500   MEDIQ/PRN Life Support
            Services, Inc. (b).....................     11.00          06/01/08        265,000
                                                                                  ------------
           MEDICAL/NURSING SERVICES (0.9%)
   6,315   Fresenius Medical Capital Trust.........      7.875         06/15/11      6,283,425
                                                                                  ------------
           MOVIES/ENTERTAINMENT (1.7%)
   6,905   Alliance Atlantis Communications, Inc.
            (Canada)...............................     13.00          12/15/09      7,664,550
   3,525   Six Flags Inc. - 144A*..................      8.875         02/01/10      3,516,188
                                                                                  ------------
                                                                                    11,180,738
                                                                                  ------------
           OFFICE EQUIPMENT/SUPPLIES (0.0%)
  22,000   Mosler, Inc. (a)(b).....................     11.00          04/15/03          --
                                                                                  ------------


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       8

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                              COUPON         MATURITY
THOUSANDS                                               RATE            DATE          VALUE
- -----------------------------------------------------------------------------------------------
                                                                      
           OIL & GAS PIPELINES (0.6%)
 $ 1,500   Williams Companies, Inc.................     7.75%          06/15/31    $  1,319,067
   3,260   Williams Companies, Inc. (Series A).....     7.50           01/15/31       2,784,236
                                                                                   ------------
                                                                                      4,103,303
                                                                                   ------------
           OIL & GAS PRODUCTION (1.5%)
   4,260   Chesapeake Energy Corp..................     8.125          04/01/11       4,174,800
   2,375   Stone Energy Corp. - 144A*..............     8.25           12/15/11       2,398,750
   4,150   Vintage Petroleum.......................     7.875          05/15/11       3,610,500
                                                                                   ------------
                                                                                     10,184,050
                                                                                   ------------
           OILFIELD SERVICES/EQUIPMENT (0.7%)
   2,515   Hanover Equipment Trust - 144A*.........     8.50           09/01/08       2,540,150
   1,960   Hanover Equipment Trust - 144A*.........     8.75           09/01/11       1,969,800
                                                                                   ------------
                                                                                      4,509,950
                                                                                   ------------
           OTHER METALS/MINERALS (0.9%)
   3,310   Murrin Murrin Holdings Property Ltd.
            (Australia)............................     9.375          08/31/07         993,000
   4,940   Phelps Dodge Corp.......................     8.75           06/01/11       4,763,346
                                                                                   ------------
                                                                                      5,756,346
                                                                                   ------------
           PUBLISHING: BOOKS/MAGAZINES (1.0%)
   7,300   PRIMEDIA, Inc...........................     8.875          05/15/11       6,369,250
                                                                                   ------------
           PUBLISHING: NEWSPAPERS (0.8%)
   1,820   Belo Corp...............................     8.00           11/01/08       1,885,329
   3,815   Holliner Participation - 144A*
            (Canada)...............................    12.125+         11/15/10       3,433,500
                                                                                   ------------
                                                                                      5,318,829
                                                                                   ------------
           PULP & PAPER (0.9%)
     795   Long View Fibre Co. - 144A*.............    10.00           01/15/09         818,850
   4,810   Norske Skog Canada Inc. (Canada) -
            144A*..................................     8.625          06/15/11       4,906,200
                                                                                   ------------
                                                                                      5,725,050
                                                                                   ------------
           REAL ESTATE DEVELOPMENT (0.7%)
   4,890   CB Richard Ellis Services Inc...........    11.25           06/15/11       4,596,600
                                                                                   ------------
           REAL ESTATE INVESTMENT TRUSTS (0.4%)
   2,855   Istar Financial Inc.....................     8.75           08/15/08       2,871,345
                                                                                   ------------
           RECREATIONAL PRODUCTS (1.0%)
   6,000   International Game Technology...........     8.375          05/15/09       6,502,500
                                                                                   ------------
           RESTAURANTS (0.7%)
 141,992   American Restaurant Group
            Holdings, Inc. - 144A* (c).............     0.00           12/15/05       4,344,955
  34,207   FRD Acquisition Corp.
            (Series B) (a)(b)......................    12.50           07/15/04          85,518
                                                                                   ------------
                                                                                      4,430,473
                                                                                   ------------


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       9

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                               COUPON         MATURITY
THOUSANDS                                                RATE           DATE          VALUE
- -----------------------------------------------------------------------------------------------
                                                                      
           RETAIL - SPECIALTY (1.4%)
 $ 9,000   Mrs. Fields Holdings Co.................     14.00++%       12/01/05    $  4,185,000
   5,525   Pantry, Inc.............................     10.25          10/15/07       5,110,625
                                                                                   ------------
                                                                                      9,295,625
                                                                                   ------------
           SAVINGS BANKS (0.1%)
     685   GS Escrow Corp..........................      7.125         08/01/05         681,495
                                                                                   ------------
           SEMICONDUCTORS (0.4%)
   2,210   Fairchild Semi Conductors...............     10.50          02/01/09       2,386,800
                                                                                   ------------
           SERVICES TO THE HEALTH INDUSTRY (1.4%)
   3,745   Anthem Insurance - 144A**...............      9.125         04/01/10       4,102,494
   5,000   Omnicare, Inc. (Series B)...............      8.125         03/15/11       5,275,000
                                                                                   ------------
                                                                                      9,377,494
                                                                                   ------------
           SPECIALTY STORES (0.5%)
   3,185   Autonation, Inc.........................      9.00          08/01/08       3,340,269
                                                                                   ------------
           SPECIALTY TELECOMMUNICATIONS (5.0%)
   4,535   American Tower Corp.....................      9.375         02/01/09       2,993,100
  11,500   Birch Telecom Inc. (b)..................     14.00          06/15/08         115,000
  14,370   DTI Holdings, Inc. (Series B) (a).......     12.50++        03/01/08         215,550
  17,085   Esprit Telecom Group PLC (United
            Kingdom) (b)...........................     11.50          12/15/07          64,069
  29,088   Esprit Telecom Group PLC (United
            Kingdom) (b)...........................     10.875         06/15/08         109,080
  47,000   Firstworld Communications, Inc..........     13.00++        04/15/08       3,290,000
  10,000   Global Crossing Holdings,
            Ltd. (a)(b)............................      8.70          08/01/07         350,000
   3,490   Global Crossing Holdings,
            Ltd. (a)(b)............................      9.50          11/15/09          69,800
  23,050   GT Group Telecom Inc. (Canada)..........     13.25++        02/01/10       1,498,250
   3,350   McLeodUSA, Inc. (a)(b)..................     11.375         01/01/09         820,750
  10,450   McLeodUSA, Inc. (a)(b)..................     11.50          05/01/09       2,455,750
   9,365   Pac-West Telecom Inc. (Series B)........     13.50          02/01/09       3,511,875
  14,500   Primus Telecommunications
            Group, Inc.............................     12.75          10/15/09       4,785,000
  16,990   Primus Telecommunications Group, Inc.
            (Series B).............................      9.875         05/15/08       5,606,700
   2,000   RSL Communications PLC (United
            Kingdom) (a)(b)........................      9.125         03/01/08         105,000
   9,000   RSL Communications PLC (United
            Kingdom) (a)(b)........................     10.50          11/15/08         472,500
   3,000   RSL Communications PLC (United
            Kingdom) (a)(b)........................      9.875         11/15/09         157,500
  13,000   Tele1 Europe BV (Netherlands)...........     13.00          05/15/09       1,755,000
  12,000   Versatel Telecom BV (Netherlands)
            (Issued 05/27/98)......................     13.25          05/15/08       3,720,000
   3,000   Versatel Telecom BV (Netherlands)
            (Issued 12/03/98)......................     13.25          05/15/08         930,000
  31,445   Viatel Inc. (a)(b)......................     11.25          04/15/08          39,306
  14,200   Viatel Inc. (Issued 03/19/99) (a)(b)....     11.50          03/15/09          17,750
  29,393   Viatel Inc. (Issued 12/08/99) (a)(b)....     11.50          03/15/09          36,741


                       SEE NOTES TO FINANCIAL STATEMENTS
                                       10

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                                COUPON        MATURITY
THOUSANDS                                                 RATE          DATE          VALUE
- -----------------------------------------------------------------------------------------------
                                                                      
 $32,545   World Access, Inc. (a)(b)(c)............      13.25%        01/15/08    $    325,450
  11,500   Worldwide Fiber Inc. (Canada) (a)(b)....      12.00         08/01/09          28,750
                                                                                   ------------
                                                                                     33,472,921
                                                                                   ------------
           TELECOMMUNICATION EQUIPMENT (1.2%)
  10,000   SBA Communications Corp.................      12.00++       03/01/08       4,700,000
  10,500   Spectrasite Holdings, Inc...............      12.00++       07/15/08       2,625,000
   3,500   Spectrasite Holdings, Inc...............      11.25++       04/15/09         805,000
                                                                                   ------------
                                                                                      8,130,000
                                                                                   ------------
           TELECOMMUNICATIONS (5.3%)
  61,075   e. Spire
            Communications, Inc. (a)(b)............      13.75         07/15/07       6,107,500
  18,752   Focal Communications Corp.
            (Series B).............................      12.125++      02/15/08       4,312,960
  15,000   Hyperion Telecommunication, Inc.
            (Series B).............................      12.25         09/01/04       1,800,000
  15,000   MGC Communications, Inc.................      13.00         04/01/10         975,000
   1,500   NEXTLINK Communications LLC.............      12.50         04/15/06         165,000
  17,500   NEXTLINK Communications, Inc............       9.00         03/15/08       1,925,000
   4,180   NEXTLINK Communications, Inc............      10.75         11/15/08         459,800
     775   NEXTLINK Communications, Inc. (b).......      10.75         06/01/09          89,125
  16,975   NTL Communications Corp. (Series B).....      11.875        10/01/10       5,941,250
  27,850   Rhythms Netconnections, Inc. (a)(b).....      12.75         04/15/09       4,316,750
  14,965   Rhythms Netconnections, Inc.
            (Series B) (a)(b)......................      13.50++       05/15/08       1,795,800
  13,850   Startec Global Communications
            Corp. (a)(b)...........................      12.00         05/15/08         138,500
   5,380   Talton Holdings, Inc. (Series B)........      11.00         06/30/07       3,335,600
   2,100   WorldCom, Inc...........................       7.50         05/15/11       2,023,363
   1,500   WorldCom, Inc...........................       8.25         05/15/31       1,441,862
                                                                                   ------------
                                                                                     34,827,510
                                                                                   ------------
           TRUCKS/CONSTRUCTION/FARM MACHINERY (2.0%)
   1,930   Case Corp. (Series B)...................       6.25         12/01/03       1,737,498
  13,350   J.B. Poindexter & Co., Inc..............      12.50         05/15/04      11,330,813
                                                                                   ------------
                                                                                     13,068,311
                                                                                   ------------
           WHOLESALE DISTRIBUTORS (0.6%)
   4,000   Burhmann US Inc.........................      12.25         11/01/09       4,120,000
                                                                                   ------------
           WIRELESS TELECOMMUNICATIONS (2.1%)
   3,675   American Cellular Corp..................       9.50         10/15/09       2,976,750
  19,485   AMSC Acquisition Co., Inc.
            (Series B) (a)(b)......................      12.25         04/01/08       7,306,875
  65,300   CellNet Data Systems Inc. (a)(b)........      14.00++       10/01/07          81,625
  19,610   Globalstar LP/Capital Corp. (b).........      10.75         11/01/04       1,176,600
  16,739   Orbcomm Global LP/Capital Corp.
            (Series B) (a)(b)......................      14.00         08/15/04         502,170
  20,230   USA Mobile Communications
            Holdings, Inc. (a)(b)..................       9.50         02/01/04         809,200
  18,800   USA Mobile Communications
            Holdings, Inc. (a)(b)..................      14.00         11/01/04         752,000


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       11

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



PRINCIPAL
AMOUNT IN                                             COUPON           MATURITY
THOUSANDS                                              RATE              DATE          VALUE
- -----------------------------------------------------------------------------------------------
                                                                     
 $33,000   WinStar Communications, Inc. (a)........   14.75++%         04/15/10    $      3,300
  11,400   WinStar Communications, Inc. (a)(b).....   12.75            04/15/10           1,140
                                                                                   ------------
                                                                                     13,609,660
                                                                                   ------------
           Total Corporate Bonds
            (COST $1,769,685,472)..............................................     598,096,239
                                                                                   ------------
           Convertible Bonds (1.3%)
           ELECTRONIC COMPONENTS (0.6%)
   8,830   Solectron Corp..........................    0.00            11/20/20       4,017,650
                                                                                   ------------
           HOTELS/RESORTS/CRUISELINES (0.0%)
   1,643   Premier Cruises Ltd. - 144A* (a)........   10.00+            8/15/05          --
                                                                                   ------------
           TELECOMMUNICATION EQUIPMENT (0.7%)
   9,420   Corning Inc.............................    0.00             11/8/15       4,639,350
                                                                                   ------------
           Total Convertible Bonds
            (COST $11,000,802).................................................       8,657,000
                                                                                   ------------




NUMBER OF
 SHARES
- ---------
                                                                             

           Common Stocks (d) (1.5%)
           APPAREL/FOOTWEAR RETAIL (0.0%)
2,621,192  County Seat Stores, Inc. (c)......................................           --
                                                                                   ------------
           CASINO/GAMING (0.0%)
 207,312   Fitzgerald Gaming Corp............................................           --
                                                                                   ------------
           CONSUMER/BUSINESS SERVICES (1.2%)
 440,700   Anacomp, Inc. (Class A) (c).......................................         7,712,250
                                                                                   ------------
           FOOD: SPECIALTY/CANDY (0.0%)
  10,908   SFAC New Holdings Inc. (c)........................................           --
   2,005   SFFB Holdings, Inc. (c)...........................................           --
 574,725   Specialty Foods Acquisition Corp. - 144A*.........................           --
                                                                                   ------------
                                                                                        --
                                                                                   ------------
           HOTELS/RESORTS/CRUISELINES (0.0%)
 981,277   Premier Holdings Inc. (c).........................................           --
 781,421   Vagabond Inns, Inc. (Class D).....................................           --
                                                                                   ------------
                                                                                        --
                                                                                   ------------
           MEDICAL/NURSING SERVICES (0.0%)
1,151,324  Raintree Healthcare Corp. (c).....................................           --
                                                                                   ------------
           MOTOR VEHICLES (0.0%)
     709   Northern Holdings Industrial Corp. (c)............................           --
                                                                                   ------------


                       SEE NOTES TO FINANCIAL STATEMENTS
                                       12

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



NUMBER OF
 SHARES                                                                               VALUE
- ------------------------------------------------------------------------------------------------
                                                                              
           RESTAURANTS (0.0%)
   38,057  American Restaurant Group Holdings, Inc. - 144A*.....................    $    --
                                                                                    ------------
           SPECIALTY TELECOMMUNICATIONS (0.1%)
  264,189  Song Networks Holding Aktir (ADR)....................................          84,540
  486,691  Versatel Telecom International NV (ADR) (Netherlands)................         253,079
   94,263  World Access, Inc. (c)...............................................             104
                                                                                    ------------
                                                                                         337,723
                                                                                    ------------
           TELECOMMUNICATION EQUIPMENT (0.0%)
  196,000  FWT Inc. (Class A) (c)...............................................           1,960
                                                                                    ------------
           TELECOMMUNICATIONS (0.2%)
  520,697  Covad Communications Group, Inc. (c).................................         820,098
3,697,963  Focal Communications Corp. (c).......................................         813,552
                                                                                    ------------
                                                                                       1,633,650
                                                                                    ------------
           TEXTILES (0.0%)
1,754,730  United States Leather, Inc. (c)......................................         --
                                                                                    ------------
           WIRELESS TELECOMMUNICATIONS (0.0%)
5,777,031  Arch Wireless Inc. (c)...............................................          46,216
  274,390  Vast Solutions, Inc. (Class B1) (c)..................................         --
  274,390  Vast Solutions, Inc. (Class B2) (c)..................................         --
  274,390  Vast Solutions, Inc. (Class B3) (c)..................................         --
                                                                                    ------------
                                                                                          46,216
                                                                                    ------------
           Total Common Stocks
            (COST $337,737,145).................................................       9,731,799
                                                                                    ------------
           Preferred Stocks (3.9%)
           BROADCASTING (0.9%)
      713  Paxson Communications+...............................................       6,203,361
                                                                                    ------------
           CELLULAR TELEPHONE (0.9%)
    4,506  Dobson Communications Corp.+.........................................       3,694,920
    6,360  Nextel Communications, Inc.+.........................................       2,257,836
                                                                                    ------------
                                                                                       5,952,756
                                                                                    ------------
           ELECTRIC UTILITIES (0.6%)
    3,705  TNP Enterprises Inc.+................................................       4,038,450
                                                                                    ------------
           PUBLISHING: BOOKS/MAGAZINES (0.0%)
    6,625  PRIMEDIA, Inc........................................................         318,828
                                                                                    ------------
           RESTAURANTS (0.2%)
    5,591  American Restaurant Group Holdings, Inc. (Series B)+.................         972,872
                                                                                    ------------


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       13

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



NUMBER OF
 SHARES                                                                               VALUE
- -----------------------------------------------------------------------------------------------
                                                                              
           SPECIALTY TELECOMMUNICATIONS (1.1%)
   7,333   Broadwing Communications, Inc.......................................    $  3,666,500
     475   Crown Castle International Corp.+...................................         213,750
   3,473   Intermedia Communication (Series B)+................................       3,369,198
 180,721   XO Communications, Inc.+............................................           1,807
                                                                                   ------------
                                                                                      7,251,255
                                                                                   ------------
           TELECOMMUNICATION EQUIPMENT (0.2%)
2,244,200  FWT Inc. (Series A)+ (c)............................................       1,122,100
                                                                                   ------------
           Total Preferred Stocks
            (COST $52,960,724).................................................      25,859,622
                                                                                   ------------




NUMBER OF                                                           EXPIRATION
WARRANTS                                                               DATE
- ---------                                                           ----------
                                                                         

           Warrants (0.0%)
           AEROSPACE & DEFENSE (0.0%)
   9,000   Sabreliner Corp. - 144A*...............................  04/15/03           --
                                                                                  ------------
           BROADCASTING (0.0%)
   5,700   XM Satellite Radio Holdings Inc. - 144A*...............  03/15/10           114,000
                                                                                  ------------
           CABLE/SATELLITE TV (0.0%)
  57,000   Diva Systems Corp. - 144A*.............................  03/01/08           --
   6,600   Ono Finance PLC - 144A* (United Kingdom)...............  05/31/09            33,000
                                                                                  ------------
                                                                                        33,000
                                                                                  ------------
           CASINO/GAMING (0.0%)
 220,000   Aladdin Gaming, Inc. - 144A*...........................  03/01/10           --
  20,000   Resorts At Summerlin - 144A*...........................  12/15/07           --
                                                                                  ------------
                                                                                       --
                                                                                  ------------
           ELECTRIC UTILITIES (0.0%)
   1,040   TNP Enterprises Inc. - 144A*...........................  04/01/11            31,200
                                                                                  ------------
           HOTELS/RESORTS/CRUISELINES (0.0%)
  13,000   Epic Resorts LLC - 144A*...............................  06/15/05           --
                                                                                  ------------
           INTERNET SOFTWARE/SERVICES (0.0%)
  47,000   Verado Holdings Inc. - 144A*...........................  04/15/08           --
                                                                                  ------------
           RESTAURANTS (0.0%)
   3,500   American Restaurant Group Holdings, Inc. - 144A*.......  08/15/08           --
                                                                                  ------------
           RETAIL - SPECIALTY (0.0%)
   9,000   Mrs. Fields Holding Inc. - 144A*.......................  12/01/05           --
                                                                                  ------------


                       SEE NOTES TO FINANCIAL STATEMENTS
                                       14

Morgan Stanley High Yield Securities Inc.
PORTFOLIO OF INVESTMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued



NUMBER OF                                                          EXPIRATION
WARRANTS                                                             DATE            VALUE
- ----------------------------------------------------------------------------------------------
                                                                         
           SPECIALTY TELECOMMUNICATIONS (0.0%)
  11,500   Birch Telecom Inc. - 144A*.............................  06/15/08      $    --
  23,050   GT Group Telecom Inc. - 144A* (Canada).................  02/01/10            46,100
                                                                                  ------------
                                                                                        46,100
                                                                                  ------------
           TELECOMMUNICATIONS (0.0%)
  11,850   Startec Global Communications Corp. - 144A*............  05/15/08           --
                                                                                  ------------
           WIRELESS TELECOMMUNICATIONS (0.0%)
  10,000   Metricom, Inc..........................................  02/15/10           --
  18,250   Motient Corp. - 144A*..................................  04/01/08               182
                                                                                  ------------
                                                                                           182
                                                                                  ------------
           Total Warrants
            (COST $5,624,493).................................................         224,482
                                                                                  ------------




PRINCIPAL
AMOUNT IN                                                   COUPON     MATURITY
THOUSANDS                                                    RATE        DATE
- ---------                                                  --------    --------
                                                                       
           Short-Term Investments (0.4%)
           Repurchase Agreements
$  1,638   Joint repurchase agreement account
           (dated 02/28/02; proceeds $1,638,086) (e).......  1.895%    03/01/02       1,638,000
   1,012   The Bank of New York (dated 02/28/02; proceeds
            $1,012,059) (f)................................  1.688     03/01/02       1,012,012
                                                                                   ------------
           Total Short-Term Investments
            (COST $2,650,012)..................................................       2,650,012
                                                                                    ------------
           Total Investments
            (COST $2,179,658,648) (g)...................................  97.2%     645,219,154
           Other Assets in Excess of Liabilities........................   2.8       18,541,232
                                                                          -----    ------------
           Net Assets...................................................  100.0%   $663,760,386
                                                                          =====    ============


- ---------------------

 ADR  AMERICAN DEPOSITORY RECEIPT.
 *    RESALE IS RESTRICTED TO QUALIFIED INSTITUTIONAL INVESTORS.
 +    PAYMENT-IN-KIND SECURITY.
 ++   CURRENTLY A ZERO COUPON BOND THAT IS SCHEDULED TO PAY INTEREST AT THE
      RATE SHOWN AT A FUTURE SPECIFIED DATE.
 (A)  ISSUER IN BANKRUPTCY.
 (B)  NON-INCOME PRODUCING SECURITY; BOND IN DEFAULT.
 (C)  ACQUIRED THROUGH EXCHANGE OFFER.
 (D)  NON-INCOME PRODUCING SECURITIES.
 (E)  COLLATERALIZED BY FEDERAL AGENCY AND U.S. TREASURY OBLIGATIONS.
 (F)  COLLATERALIZED BY $1,051,150 U.S. TREASURY NOTE 3.50% DUE 11/15/06 VALUED
      AT $1,032,258.
 (G)  THE AGGREGATE COST FOR FEDERAL INCOME TAX PURPOSES APPROXIMATES THE
      AGGREGATE COST FOR BOOK PURPOSES. THE AGGREGATE GROSS UNREALIZED
      APPRECIATION IS $13,315,466 AND THE AGGREGATE GROSS UNREALIZED
      DEPRECIATION IS $1,547,754,960, RESULTING IN NET UNREALIZED DEPRECIATION
      OF $1,534,439,494.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       15

Morgan Stanley High Yield Securities Inc.
FINANCIAL STATEMENTS

Statement of Assets and Liabilities
FEBRUARY 28, 2002 (UNAUDITED)



                                                 
Assets:
Investments in securities, at value (cost
 $2,179,658,648)..................................  $  645,219,154
Receivable for:
  Interest........................................      17,936,714
  Investments sold................................       5,671,201
  Capital stock sold..............................         392,776
Prepaid expenses and other assets.................          73,355
                                                    --------------
    Total Assets..................................     669,293,200
                                                    --------------
Liabilities:
Payable for:
  Investments purchased...........................       3,534,039
  Capital stock repurchased.......................       1,066,787
  Distribution fee................................         322,288
  Investment management fee.......................         252,739
Accrued expenses and other payables...............         356,961
                                                    --------------
    Total Liabilities.............................       5,532,814
                                                    --------------
    Net Assets....................................  $  663,760,386
                                                    ==============
Composition of Net Assets:
Paid-in-capital...................................  $3,010,689,166
Net unrealized depreciation.......................  (1,534,439,494)
Dividends in excess of net investment income......     (17,115,158)
Accumulated net realized loss.....................    (795,374,128)
                                                    --------------
    Net Assets....................................  $  663,760,386
                                                    ==============
Class A Shares:
Net Assets........................................     $25,393,979
Shares Outstanding (500,000,000 AUTHORIZED, $.01
 PAR VALUE).......................................      13,754,137
    Net Asset Value Per Share.....................           $1.85
                                                             =====
    Maximum Offering Price Per Share,
    (NET ASSET VALUE PLUS 4.44% OF NET ASSET
     VALUE).......................................           $1.93
                                                             =====
Class B Shares:
Net Assets........................................    $487,088,037
Shares Outstanding (500,000,000 AUTHORIZED, $.01
 PAR VALUE).......................................     264,860,033
    Net Asset Value Per Share.....................           $1.84
                                                             =====
Class C Shares:
Net Assets........................................     $39,051,883
Shares Outstanding (500,000,000 AUTHORIZED, $.01
 PAR VALUE).......................................      21,197,421
    Net Asset Value Per Share.....................           $1.84
                                                             =====
Class D Shares:
Net Assets........................................    $112,226,487
Shares Outstanding (500,000,000 AUTHORIZED, $.01
 PAR VALUE).......................................      60,832,134
    Net Asset Value Per Share.....................           $1.84
                                                             =====



Statement of Operations
FOR THE SIX MONTHS ENDED FEBRUARY 28, 2002 (UNAUDITED)



                                                 
Net Investment Income:
Income
Interest..........................................   $ 60,445,868
Dividends.........................................        491,437
                                                    -------------
    Total Income..................................     60,937,305
                                                    -------------
Expenses
Distribution fee (Class A shares).................         36,157
Distribution fee (Class B shares).................      2,048,001
Distribution fee (Class C shares).................        181,143
Investment management fee.........................      1,749,471
Transfer agent fees and expenses..................        786,123
Shareholder reports and notices...................        130,794
Professional fees.................................         52,660
Custodian fees....................................         50,872
Registration fees.................................         38,609
Directors' fees and expenses......................          9,186
Other.............................................          9,111
                                                    -------------
    Total Expenses................................      5,092,127
                                                    -------------
    Net Investment Income.........................     55,845,178
                                                    -------------
Net Realized and Unrealized Loss:
Net realized loss.................................   (101,992,943)
Net change in unrealized depreciation.............    (71,245,906)
                                                    -------------
    Net Loss......................................   (173,238,849)
                                                    -------------
Net Decrease......................................  $(117,393,671)
                                                    =============


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       16

Morgan Stanley High Yield Securities Inc.
FINANCIAL STATEMENTS continued

Statement of Changes in Net Assets



                                             FOR THE SIX      FOR THE YEAR
                                            MONTHS ENDED          ENDED
                                          FEBRUARY 28, 2002  AUGUST 31, 2001
                                          -----------------  ---------------
                                             (UNAUDITED)
                                                       
Increase (Decrease) in Net Assets:
Operations:
Net investment income...................    $  55,845,178    $  182,819,538
Net realized loss.......................     (101,992,943)     (282,975,609)
Net change in unrealized depreciation...      (71,245,906)     (513,181,124)
                                            -------------    --------------

    Net Decrease........................     (117,393,671)     (613,337,195)
                                            -------------    --------------
Dividends to Shareholders from Net
 Investment Income:
Class A shares..........................       (2,418,772)       (7,002,632)
Class B shares..........................      (44,666,302)     (150,569,611)
Class C shares..........................       (3,477,209)      (10,293,101)
Class D shares..........................      (10,234,948)      (29,754,002)
                                            -------------    --------------

    Total Dividends.....................      (60,797,231)     (197,619,346)
                                            -------------    --------------

Net decrease from capital stock
 transactions...........................      (46,653,991)      (72,611,177)
                                            -------------    --------------

    Net Decrease........................     (224,844,893)     (883,567,718)

Net Assets:
Beginning of period.....................      888,605,279     1,772,172,997
                                            -------------    --------------
End of Period (Including dividends in
 excess of net investment income of
 $17,115,158 and $17,487,233,
 respectively)..........................    $ 663,760,386    $  888,605,279
                                            =============    ==============


                       SEE NOTES TO FINANCIAL STATEMENTS

                                       17

Morgan Stanley High Yield Securities Inc.
NOTES TO FINANCIAL STATEMENTS o FEBRUARY 28, 2002 (UNAUDITED)

1. Organization and Accounting Policies
Morgan Stanley High Yield Securities Inc. (the "Fund") is registered under the
Investment Company Act of 1940, as amended, (the "Act") as a diversified,
open-end management investment company. The Fund's primary investment objective
is to earn a high level of current income and, as a secondary objective, capital
appreciation, but only when consistent with its primary objective. The Fund was
incorporated in Maryland on June 14, 1979 and commenced operations on
September 26, 1979. On July 28, 1997, the Fund converted to a multiple class
share structure.

The Fund offers Class A shares, Class B shares, Class C shares and Class D
shares. The four classes are substantially the same except that most Class A
shares are subject to a sales charge imposed at the time of purchase and some
Class A shares, and most Class B shares and Class C shares are subject to a
contingent deferred sales charge imposed on shares redeemed within one year, six
years and one year, respectively. Class D shares are not subject to a sales
charge. Additionally, Class A shares, Class B shares and Class C shares incur
distribution expenses.

The preparation of financial statements in accordance with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts and disclosures. Actual results could differ from
those estimates.

The following is a summary of significant accounting policies:

A. Valuation of Investments -- (1) an equity portfolio security listed or traded
on the New York or American Stock Exchange, NASDAQ, or other exchange is valued
at its latest sale price, prior to the time when assets are valued; if there
were no sales that day, the security is valued at the latest bid price (in cases
where securities are traded on more than one exchange, the securities are valued
on the exchange designated as the primary market pursuant to procedures adopted
by the Directors); (2) all other portfolio securities for which over-the-counter
market quotations are readily available are valued at the latest available bid
price; (3) when market quotations are not readily available, including
circumstances under which it is determined by Morgan Stanley Investment Advisors
Inc. (the "Investment Manager") that sale or bid prices are not reflective of a
security's market value, portfolio securities are valued at their fair value as
determined in good faith under procedures established by and under the general
supervision of the Directors (valuation of debt securities for which market
quotations are not readily available may be based upon current market prices of
securities which are comparable in coupon, rating and maturity or an appropriate
matrix utilizing similar factors); (4) certain portfolio securities may be
valued by an outside pricing service approved by the Directors. The pricing
service may utilize a matrix system incorporating security quality, maturity and

                                       18

Morgan Stanley High Yield Securities Inc.
NOTES TO FINANCIAL STATEMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued

coupon as the evaluation model parameters, and/or research and evaluations by
its staff, including review of broker-dealer market price quotations, if
available, in determining what it believes is the fair valuation of the
portfolio securities valued by such pricing service; and (5) short-term debt
securities having a maturity date of more than sixty days at time of purchase
are valued on a mark-to-market basis until sixty days prior to maturity and
thereafter at amortized cost based on their value on the 61st day. Short-term
debt securities having a maturity date of sixty days or less at the time of
purchase are valued at amortized cost.

B. Accounting for Investments -- Security transactions are accounted for on the
trade date (date the order to buy or sell is executed). Realized gains and
losses on security transactions are determined by the identified cost method.
Dividend income and other distributions are recorded on the ex-dividend date.
Discounts are accreted and premiums are amortized over the respective life of
the securities. Interest income is accrued daily except where collection is not
expected.

C. Joint Repurchase Agreement Account -- Pursuant to an Exemptive Order issued
by the Securities and Exchange Commission, the Fund, along with other affiliated
entities managed by the Investment Manager, may transfer uninvested cash
balances into one or more joint repurchase agreement accounts. These balances
are invested in one or more repurchase agreements for cash, or U.S. Treasury or
federal agency obligations.

D. Multiple Class Allocations -- Investment income, expenses (other than
distribution fees), and realized and unrealized gains and losses are allocated
to each class of shares based upon the relative net asset value on the date such
items are recognized. Distribution fees are charged directly to the respective
class.

E. Federal Income Tax Status -- It is the Fund's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated investment
companies and to distribute substantially all of its taxable income to its
shareholders. Accordingly, no federal income tax provision is required.

F. Dividends and Distributions to Shareholders -- The Fund records dividends and
distributions to its shareholders on the ex-dividend date. The amount of
dividends and distributions from net investment income and net realized capital
gains are determined in accordance with federal income tax regulations which may
differ from generally accepted accounting principles. These "book/tax"
differences are either considered temporary or permanent in nature. To the
extent these differences are permanent in nature, such amounts are reclassified
within the capital accounts based on their federal tax-basis treatment;
temporary differences do not require reclassification. Dividends and
distributions which exceed net investment income and net realized capital gains
for financial reporting purposes but not for tax purposes

                                       19

Morgan Stanley High Yield Securities Inc.
NOTES TO FINANCIAL STATEMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued

are reported as dividends in excess of net investment income or distributions in
excess of net realized capital gains. To the extent they exceed net investment
income and net realized capital gains for tax purposes, they are reported as
distributions of paid-in-capital.

2. Investment Management Agreement
Pursuant to an Investment Management Agreement, the Fund pays the Investment
Manager a management fee, calculated daily and payable monthly, by applying the
following annual rates to the net assets of the Fund determined as of the close
of each business day: 0.50% to the portion of daily net assets not exceeding
$500 million; 0.425% to the portion of daily net assets exceeding $500 million
but not exceeding $750 million; 0.375% to the portion of daily net assets
exceeding $750 million but not exceeding $1 billion; 0.35% to the portion of
daily net assets exceeding $1 billion but not exceeding $2 billion; 0.325% to
the portion of daily net assets exceeding $2 billion but not exceeding
$3 billion; and 0.30% to the portion of daily net assets exceeding $3 billion.

3. Plan of Distribution
Shares of the Fund are distributed by Morgan Stanley Distributors Inc. (the
"Distributor"), an affiliate of the Investment Manager. The Fund has adopted a
Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under the Act. The Plan
provides that the Fund pay the Distributor a fee which is accrued daily and paid
monthly at the following annual rates: (i) Class A -- up to 0.25% of the average
daily net assets of Class A; (ii) Class B -- 0.75% of the average daily net
assets of Class B; and (iii) Class C -- up to 0.85% of the average daily net
assets of Class C.

In the case of Class B shares, provided that the Plan continues in effect, any
cumulative expenses incurred by the Distributor but not yet recovered may be
recovered through the payment of future distribution fees from the Fund pursuant
to the Plan and contingent deferred sales charges paid by investors upon
redemption of Class B shares. Although there is no legal obligation for the Fund
to pay expenses incurred in excess of payments made to the Distributor under the
Plan and the proceeds of contingent deferred sales charges paid by investors
upon redemption of shares, if for any reason the Plan is terminated, the
Directors will consider at that time the manner in which to treat such expenses.
The Distributor has advised the Fund that such excess amounts totaled
$60,729,773 at February 28, 2002.

In the case of Class A shares and Class C shares, expenses incurred pursuant to
the Plan in any calendar year in excess of 0.25% or 0.85% of the average daily
net assets of Class A or Class C, respectively, will not be reimbursed by the
Fund through payments in any subsequent year, except that expenses representing
a

                                       20

Morgan Stanley High Yield Securities Inc.
NOTES TO FINANCIAL STATEMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued

gross sales credit to Morgan Stanley Financial Advisors or other selected
broker-dealer representatives may be reimbursed in the subsequent calendar year.
For the six months ended February 28, 2002, the distribution fee was accrued for
Class A shares and Class C shares at the annual rate of 0.25% and 0.85%,
respectively.

The Distributor has informed the Fund that for the six months ended
February 28, 2002, it received contingent deferred sales charges from certain
redemptions of the Fund's Class A Shares, Class B shares and Class C shares of
$25,943, $850,331 and $12,717, respectively and received $1,421 in front-end
sales charges from sales of the Fund's Class A shares. The respective
shareholders pay such charges which are not an expense of the Fund.

4. Security Transactions and Transactions with Affiliates
The cost of purchases and proceeds from sales of portfolio securities, excluding
short-term investments, for the six months ended February 28, 2002, aggregated
$130,550,663 and $191,356,513, respectively.

Morgan Stanley Trust, an affiliate of the Investment Manager and Distributor, is
the Fund's transfer agent. At February 28, 2002, the Fund had transfer agent
fees and expenses payable of approximately $40,200.

The Fund has an unfunded noncontributory defined benefit pension plan covering
all independent Directors of the Fund who will have served as independent
Directors for at least five years at the time of retirement. Benefits under this
plan are based on years of service and compensation during the last five years
of service. Aggregate pension costs for the six months ended February 28, 2002
included in Directors' fees and expenses in the Statement of Operations amounted
to $3,589. At February 28, 2002, the Fund had an accrued pension liability of
$57,558 which is included in accrued expenses in the Statement of Assets and
Liabilities.

                                       21

Morgan Stanley High Yield Securities Inc.
NOTES TO FINANCIAL STATEMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued

5. Capital Stock
Transactions in capital stock were as follows:



                                       FOR THE SIX                 FOR THE YEAR
                                       MONTHS ENDED                    ENDED
                                    FEBRUARY 28, 2002             AUGUST 31, 2001
                                --------------------------  ---------------------------
                                  SHARES        AMOUNT         SHARES        AMOUNT
                                -----------  -------------  ------------  -------------
                                       (UNAUDITED)
                                                              
CLASS A SHARES
Sold..........................    7,162,259  $  14,899,676    19,209,128  $  63,780,578
Reinvestment of dividends.....      570,641      1,128,585     1,049,177      3,186,287
Redeemed......................   (9,810,062)   (20,249,131)  (17,600,601)   (59,066,199)
                                -----------  -------------  ------------  -------------
Net increase (decrease) --
 Class A......................   (2,077,162)    (4,220,870)    2,657,704      7,900,666
                                -----------  -------------  ------------  -------------
CLASS B SHARES
Sold..........................   21,613,070     43,035,559    87,486,847    281,384,559
Reinvestment of dividends.....    8,164,759     16,089,588    17,505,252     53,772,493
Redeemed......................  (51,830,406)  (104,404,539) (136,458,377)  (426,230,286)
                                -----------  -------------  ------------  -------------
Net decrease -- Class B.......  (22,052,577)   (45,279,392)  (31,466,278)   (91,073,234)
                                -----------  -------------  ------------  -------------
CLASS C SHARES
Sold..........................    3,407,356      6,775,421    13,531,056     45,899,890
Reinvestment of dividends.....      827,546      1,635,525     1,676,677      5,136,460
Redeemed......................   (4,508,663)    (8,947,288)  (13,756,797)   (45,459,076)
                                -----------  -------------  ------------  -------------
Net increase (decrease) --
 Class C......................     (273,761)      (536,342)    1,450,936      5,577,274
                                -----------  -------------  ------------  -------------
CLASS D SHARES
Sold..........................    5,034,687     10,050,023    20,506,858     63,372,986
Reinvestment of dividends.....    3,302,846      6,529,821     5,852,214     17,880,440
Redeemed......................   (6,607,827)   (13,197,231)  (24,049,991)   (76,269,309)
                                -----------  -------------  ------------  -------------
Net increase -- Class D.......    1,729,706      3,382,613     2,309,081      4,984,117
                                -----------  -------------  ------------  -------------
Net decrease in Fund..........  (22,673,794) $ (46,653,991)  (25,048,557) $ (72,611,177)
                                ===========  =============  ============  =============


6. Federal Income Tax Status
At August 31, 2001, the Fund had a net capital loss carryover of approximately
$482,783,000, which may be used to offset future capital gains to the extent
provided by regulations, which is available through August 31 in the following
years:



                          AMOUNT IN THOUSANDS
- -----------------------------------------------------------------------
  2002     2003     2004     2005     2006     2007     2008     2009
- --------  -------  -------  -------  -------  -------  -------  -------
                                           
$166,660  $50,599  $23,296  $39,319  $12,603  $24,919  $69,857  $95,530
========  =======  =======  =======  =======  =======  =======  =======


                                       22

Morgan Stanley High Yield Securities Inc.
NOTES TO FINANCIAL STATEMENTS o FEBRUARY 28, 2002 (UNAUDITED) continued

Capital losses incurred after October 31 ("post-October losses") within the
taxable year are deemed to arise on the first business day of the Fund's next
taxable year. The Fund incurred and will elect to defer net capital losses of
approximately $199,075,000 during fiscal 2001.

At August 31, 2001, the Fund had temporary book/tax differences primarily
attributable to post-October losses, capital loss deferrals on wash sales and
interest on bonds in default.

7. Change in Accounting Policy
Effective September 1, 2001, the Fund has adopted the provisions of the AICPA
Audit and Accounting Guide for Investment Companies, as revised, related to
premiums and discounts on debt securities. The cumulative effect of this
accounting change had no impact on the net assets of the Fund, but resulted in a
$5,324,128 increase in the cost of securities and a corresponding increase in
undistributed net investment income based on securities held as of August 31,
2001.

The effect of this change for the six months ended February 28, 2002 was to
increase net investment income by $952,867; increase unrealized depreciation by
$233,149; and increase net realized losses by $719,718. The statement of changes
in net assets and the financial highlights for prior periods have not been
restated to reflect this change.

                                       23

Morgan Stanley High Yield Securities Inc.
FINANCIAL HIGHLIGHTS

Selected ratios and per share data for a share of capital stock outstanding
throughout each period:


                                                                                                                     FOR THE PERIOD
                              FOR THE SIX                         FOR THE YEAR ENDED AUGUST 31,                      JULY 28, 1997*
                             MONTHS ENDED         --------------------------------------------------------------         THROUGH
                           FEBRUARY 28, 2002         2001             2000             1999             1998         AUGUST 31, 1997
                           -----------------      -----------      -----------      -----------      -----------     ---------------
                              (UNAUDITED)
                                                                                                   
Class A Shares++
Selected Per Share Data:
Net asset value,
 beginning of period.....       $  2.32             $  4.35          $  5.51          $  6.16          $  6.82           $ 6.83
                                -------             -------          -------          -------          -------           ------
Income (loss) from
 investment operations:
  Net investment
   income................          0.16                0.47             0.69             0.72             0.76             0.07
  Net realized and
   unrealized loss.......         (0.46)              (1.99)           (1.13)           (0.63)           (0.71)           (0.03)
                                -------             -------          -------          -------          -------           ------
Total income (loss) from
 investment operations...         (0.30)              (1.52)           (0.44)            0.09             0.05             0.04
                                -------             -------          -------          -------          -------           ------

Less dividends from net
 investment income.......         (0.17)              (0.51)           (0.72)           (0.74)           (0.71)           (0.05)
                                -------             -------          -------          -------          -------           ------

Net asset value, end of
 period..................       $  1.85             $  2.32          $  4.35          $  5.51          $  6.16           $ 6.82
                                =======             =======          =======          =======          =======           ======

Total Return+............        (13.32)%(1)         (37.05)%          (8.88)%           1.47%            0.40%            0.65%(1)

Ratios to Average Net
 Assets:
Expenses.................          1.02%(2)(3)         0.77%(3)         0.70%(3)         0.68%(3)         0.75%(3)         0.93%(2)
Net investment income....         15.51%(2)(3)(4)     15.17%(3)        13.62%(3)        12.42%(3)        11.30%(3)        11.80%(2)

Supplemental Data:
Net assets, end of
 period, in thousands....       $25,394             $36,762          $57,273          $68,667          $30,678           $1,996
Portfolio turnover
 rate....................            18%(1)              49%              20%              36%              66%             113%



- ------------------------

  *   THE DATE SHARES WERE FIRST ISSUED.
 ++   THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
      OUTSTANDING DURING THE PERIOD.
  +   DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE
      NET ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
 (1)  NOT ANNUALIZED.
 (2)  ANNUALIZED.
 (3)  REFLECTS OVERALL FUND RATIOS FOR INVESTMENT INCOME AND NON-CLASS
      SPECIFIC EXPENSES.
 (4)  EFFECTIVE SEPTEMBER 1, 2001, THE FUND HAS ADOPTED THE PROVISIONS OF THE
      AICPA AUDIT AND ACCOUNTING GUIDE FOR INVESTMENT COMPANIES, AS REVISED,
      RELATED TO PREMIUMS AND DISCOUNTS ON DEBT SECURITIES. THE EFFECT OF THIS
      CHANGE FOR THE SIX MONTHS ENDED FEBRUARY 28, 2002 WAS TO INCREASE THE
      RATIO OF NET INVESTMENT INCOME TO AVERAGE NET ASSETS BY 0.26%. THE
      FINANCIAL HIGHLIGHTS DATA PRESENTED IN THIS TABLE FOR PRIOR PERIODS HAS
      NOT BEEN RESTATED TO REFLECT THIS CHANGE.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       24

Morgan Stanley High Yield Securities Inc.
FINANCIAL HIGHLIGHTS continued


                                                                                                                    FOR THE PERIOD
                              FOR THE SIX                         FOR THE YEAR ENDED AUGUST 31,                     JULY 28, 1997*
                             MONTHS ENDED         --------------------------------------------------------------        THROUGH
                           FEBRUARY 28, 2002         2001             2000             1999             1998        AUGUST 31, 1997
                           -----------------      -----------      -----------      -----------      -----------    ---------------
                              (UNAUDITED)
                                                                                                  
Class B Shares++
Selected Per Share Data:
Net asset value,
 beginning of period.....      $   2.32            $   4.34        $     5.50       $     6.15       $     6.82         $  6.83
                               --------            --------        ----------       ----------       ----------         -------
Income (loss) from
 investment operations:
  Net investment income..          0.15                0.46              0.66             0.69             0.73            0.07
  Net realized and
   unrealized loss.......         (0.47)              (1.99)            (1.13)           (0.64)           (0.72)          (0.03)
                               --------            --------        ----------       ----------       ----------         -------
Total income (loss) from
 investment operations...         (0.32)              (1.53)            (0.47)            0.05             0.01            0.04
                               --------            --------        ----------       ----------       ----------         -------
Less dividends from net
 investment income.......         (0.16)              (0.49)            (0.69)           (0.70)           (0.68)          (0.05)
                               --------            --------        ----------       ----------       ----------         -------
Net asset value, end of
 period..................      $   1.84            $   2.32        $     4.34       $     5.50       $     6.15         $  6.82
                               ========            ========        ==========       ==========       ==========         =======
Total Return+............        (13.85)%(1)         (37.27)%           (9.39)%           0.92%           (0.23)%          0.62%(1)

Ratios to Average Net
 Assets:
Expenses.................          1.52%(2)(3)         1.37%(3)          1.25%(3)         1.24%(3)         1.25%(3)        1.42%(2)
Net investment income....         15.01%(2)(3)(4)     14.57%(3)         13.07%(3)        11.86%(3)        10.80%(3)       11.28%(2)

Supplemental Data:
Net assets, end of
 period, in thousands....      $487,088            $664,706        $1,381,008       $1,927,186       $1,761,147         $15,828
Portfolio turnover
 rate....................            18%(1)              49%               20%              36%              66%            113%



- ------------------------

  *   THE DATE SHARES WERE FIRST ISSUED.
 ++   THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
      OUTSTANDING DURING THE PERIOD.
  +   DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE
      NET ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
 (1)  NOT ANNUALIZED.
 (2)  ANNUALIZED.
 (3)  REFLECTS OVERALL FUND RATIOS FOR INVESTMENT INCOME AND NON-CLASS
      SPECIFIC EXPENSES.
 (4)  EFFECTIVE SEPTEMBER 1, 2001, THE FUND HAS ADOPTED THE PROVISIONS OF THE
      AICPA AUDIT AND ACCOUNTING GUIDE FOR INVESTMENT COMPANIES, AS REVISED,
      RELATED TO PREMIUMS AND DISCOUNTS ON DEBT SECURITIES. THE EFFECT OF THIS
      CHANGE FOR THE SIX MONTHS ENDED FEBRUARY 28, 2002 WAS TO INCREASE THE
      RATIO OF NET INVESTMENT INCOME TO AVERAGE NET ASSETS BY 0.26%. THE
      FINANCIAL HIGHLIGHTS DATA PRESENTED IN THIS TABLE FOR PRIOR PERIODS HAS
      NOT BEEN RESTATED TO REFLECT THIS CHANGE.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       25

Morgan Stanley High Yield Securities Inc.
FINANCIAL HIGHLIGHTS continued


                                                                                                                     FOR THE PERIOD
                              FOR THE SIX                         FOR THE YEAR ENDED AUGUST 31,                      JULY 28, 1997*
                             MONTHS ENDED         --------------------------------------------------------------         THROUGH
                           FEBRUARY 28, 2002         2001             2000             1999             1998         AUGUST 31, 1997
                           -----------------      -----------      -----------      -----------      -----------     ---------------
                              (UNAUDITED)
                                                                                                   
Class C Shares++
Selected Per Share Data:
Net asset value,
 beginning of period.....       $  2.32             $  4.34          $  5.51         $   6.15          $  6.82           $ 6.83
                                -------             -------          -------         --------          -------           ------
Income (loss) from
 investment operations:
  Net investment
   income................          0.15                0.45             0.66             0.68             0.72             0.07
  Net realized and
   unrealized loss.......         (0.47)              (1.98)           (1.14)           (0.62)           (0.72)           (0.03)
                                -------             -------          -------         --------          -------           ------
Total income (loss) from
 investment operations...         (0.32)              (1.53)           (0.48)            0.06             0.00             0.04
                                -------             -------          -------         --------          -------           ------

Less dividends from net                                                                                                   (0.05)
 investment income.......         (0.16)              (0.49)           (0.69)           (0.70)           (0.67)          ------
                                -------             -------          -------         --------          -------

Net asset value, end of
 period..................       $  1.84             $  2.32          $  4.34         $   5.51          $  6.15           $ 6.82
                                =======             =======          =======         ========          =======           ======

Total Return+............        (13.92)%(1)         (37.34)%          (9.66)%           0.99%           (0.34)%           0.62%(1)

Ratios to Average Net
 Assets:
Expenses.................          1.62%(2)(3)         1.47%(3)         1.35%(3)         1.34%(3)         1.36%(3)         1.52%(2)
Net investment income....         14.91%(2)(3)(4)     14.47%(3)        12.97%(3)        11.76%(3)        10.69%(3)        11.18%(2)

Supplemental Data:
Net assets, end of
 period, in thousands....       $39,052             $49,818          $86,951         $109,142          $56,626           $5,225
Portfolio turnover
 rate....................            18%(1)              49%              20%              36%              66%             113%


- ------------------------

  *   THE DATE SHARES WERE FIRST ISSUED.
 ++   THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
      OUTSTANDING DURING THE PERIOD.
  +   DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE
      NET ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
 (1)  NOT ANNUALIZED.
 (2)  ANNUALIZED.
 (3)  REFLECTS OVERALL FUND RATIOS FOR INVESTMENT INCOME AND NON-CLASS
      SPECIFIC EXPENSES.
 (4)  EFFECTIVE SEPTEMBER 1, 2001, THE FUND HAS ADOPTED THE PROVISIONS OF THE
      AICPA AUDIT AND ACCOUNTING GUIDE FOR INVESTMENT COMPANIES, AS REVISED,
      RELATED TO PREMIUMS AND DISCOUNTS ON DEBT SECURITIES. THE EFFECT OF THIS
      CHANGE FOR THE SIX MONTHS ENDED FEBRUARY 28, 2002 WAS TO INCREASE THE
      RATIO OF NET INVESTMENT INCOME TO AVERAGE NET ASSETS BY 0.26%. THE
      FINANCIAL HIGHLIGHTS DATA PRESENTED IN THIS TABLE FOR PRIOR PERIODS HAS
      NOT BEEN RESTATED TO REFLECT THIS CHANGE.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       26

Morgan Stanley High Yield Securities Inc.
FINANCIAL HIGHLIGHTS continued



                               FOR THE SIX                                   FOR THE YEAR ENDED AUGUST 31
                              MONTHS ENDED          -------------------------------------------------------------------------------
                           FEBRUARY 28, 2002++        2001++           2000++           1999++           1998++            1997*
                           -------------------      -----------      -----------      -----------      -----------      -----------
                               (UNAUDITED)
                                                                                                      
Class D Shares
Selected Per Share Data:
Net asset value,
 beginning of period.....       $   2.32             $   4.35         $   5.51         $   6.16         $   6.82         $   6.71
                                --------             --------         --------         --------         --------         --------
Income (loss) from
 investment operations:
  Net investment
   income................           0.16(4)              0.48             0.70             0.74             0.78             0.79
  Net realized and
   unrealized gain
   (loss)................          (0.47)(4)            (1.99)           (1.13)           (0.64)           (0.71)            0.15
                                --------             --------         --------         --------         --------         --------
Total income (loss) from
 investment operations...          (0.31)               (1.51)           (0.43)            0.10             0.07             0.94
                                --------             --------         --------         --------         --------         --------
Less dividends from net
 investment income.......          (0.17)               (0.52)           (0.73)           (0.75)           (0.73)           (0.83)
                                --------             --------         --------         --------         --------         --------
Net asset value, end of
 period..................       $   1.84             $   2.32         $   4.35         $   5.51         $   6.16         $   6.82
                                ========             ========         ========         ========         ========         ========
Total Return+............         (13.56)%(1)          (36.95)%          (8.69)%           1.67%            0.63%           15.01%

Ratios to Average Net
 Assets:
Expenses.................           0.77%(2)(3)          0.62%(3)         0.50%(3)         0.49%(3)         0.51%(3)         0.68%
Net investment income....          15.76%(2)(3)(4)      15.32%(3)        13.82%(3)        12.61%(3)        11.54%(3)        11.78%

Supplemental Data:
Net assets, end of
 period, in thousands....       $112,226             $137,319         $246,941         $333,714         $400,582         $479,020
Portfolio turnover
 rate....................             18%(1)               49%              20%              36%              66%             113%


- ------------------------

  *   PRIOR TO JULY 28, 1997, THE FUND ISSUED ONE CLASS OF SHARES. ALL SHARES
      OF THE FUND HELD PRIOR TO THAT DATE HAVE BEEN DESIGNATED CLASS D SHARES.
 ++   THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
      OUTSTANDING DURING THE PERIOD.
  +   CALCULATED BASED ON THE NET ASSET VALUE AS OF THE LAST BUSINESS DAY OF
      THE PERIOD.
 (1)  NOT ANNUALIZED.
 (2)  ANNUALIZED.
 (3)  REFLECTS OVERALL FUND RATIOS FOR INVESTMENT INCOME AND NON-CLASS
      SPECIFIC EXPENSES.
 (4)  EFFECTIVE SEPTEMBER 1, 2001, THE FUND HAS ADOPTED THE PROVISIONS OF THE
      AICPA AUDIT AND ACCOUNTING GUIDE FOR INVESTMENT COMPANIES, AS REVISED,
      RELATED TO PREMIUMS AND DISCOUNTS ON DEBT SECURITIES. THE EFFECT OF THIS
      CHANGE FOR THE SIX MONTHS ENDED FEBRUARY 28, 2002 WAS TO INCREASE THE
      RATIO OF NET INVESTMENT INCOME TO AVERAGE NET ASSETS BY 0.26%. THE
      FINANCIAL HIGHLIGHTS DATA PRESENTED IN THIS TABLE FOR PRIOR PERIODS HAS
      NOT BEEN RESTATED TO REFLECT THIS CHANGE.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       27


DIRECTORS

Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
Wayne E. Hedien
James F. Higgins
Dr. Manuel H. Johnson
Michael E. Nugent
Philip J. Purcell
John L. Schroeder

OFFICERS

Charles A. Fiumefreddo
Chairman and Chief Executive Officer

Mitchell M. Merin
President

Barry Fink
Vice President, Secretary and General Counsel

Stephen F. Esser
Vice President

Gordon W. Loery
Vice President

Deanne Loughnane
Vice President

Thomas F. Caloia
Treasurer

TRANSFER AGENT

Morgan Stanley Trust
Harborside Financial Center - Plaza Two
Jersey City, New Jersey 07311

INDEPENDENT AUDITORS

Deloitte & Touche LLP
Two World Financial Center
New York, New York 10281

INVESTMENT MANAGER

Morgan Stanley Investment Advisors Inc.
1221 Avenue of the Americas
New York, New York 10020

The financial statements included herein have been taken from the records of
the Fund without examination by the independent auditors and accordingly they
do not express an opinion thereon.

This report is submitted for the general information of the shareholders of
the Fund. For more detailed information about the Fund, its fees and expenses
and other pertinent information, please read its Prospectus. The Fund's
Statement of Additional Information contains additional information about the
Fund, including its directors. It is available, without charge, by calling
(800) 869-NEWS.

This report is not authorized for distribution to prospective investors in
the Fund unless preceded or accompanied by an effective Prospectus. Read the
Prospectus carefully before investing.

Morgan Stanley Distributors Inc., member NASD.                       37915RPT



                                                           [MORGAN STANLEY LOGO]



                                            [PHOTO]

                                            MORGAN STANLEY
                                            HIGH YIELD SECURITIES


                                            SEMIANNUAL REPORT
                                            FEBRUARY 28, 2002



                             Semi-Annual Report of
                        High Income Advantage Trust III
                              Dated July 31, 2002

                            To be Filed by Amendment








Morgan Stanley High Income Advantage Trust III
LETTER TO THE SHAREHOLDERS - JANUARY 31, 2002

Dear Shareholder:

The 12-month period ended January 31, 2002, was a highly volatile one for the
high-yield market, especially after the terrorist attacks of September 11. These
events and the subsequent war on terrorism had a profound effect on the outlook
for the economy and the financial markets. Despite a 50-basis-point reduction in
the federal funds rate, a flight to quality pushed high-yield security prices
sharply lower. Airlines, the lodging and insurance industries, and the
telecommunications and cable industries experienced some of the sharpest price
declines in the marketplace. Even industries that held up relatively well, such
as food, drugs, utilities and energy, experienced price declines. The high-yield
market recovered somewhat in October and November but softened again in
December.

Credit spreads in the high-yield market relative to U.S. Treasury securities
remain at historically wide levels and came very close to reaching an all-time
peak in September. The spreads remained particularly wide within the lower-rated
portion of the market as investors continued to prefer the relatively higher
quality end of the market.

Performance and Portfolio Strategy

For the 12-month period ended January 31, 2002, Morgan Stanley High Income
Advantage Trust III produced a total return of -38.48 percent, based on a change
in net asset value (NAV) and reinvestment of dividends totaling $0.291 per
share. For the same period, the Trust's total return was -63.16 percent, based
on a change in its market price on the New York Stock Exchange (NYSE) and
reinvestment of dividends.

During the fiscal year, the Trust instituted several important changes to its
dividend policy. First, in May, the Trust lowered its income dividend from
$0.035 per share to $0.017 per share. The Trust's January 2002, income dividend
was lowered to $0.012 per share. In addition, beginning with that dividend, the
Trust moved from paying a fixed dividend rate to one that fluctuates with the
amount of income earned by the Trust. We believe that adopting a fluctuating
dividend policy will provide the Trust with greater flexibility. Should the
Trust experience additional defaults, the dividend amount will be lower.
Conversely, should the economy improve, defaults stabilize and income levels
increase, the Trust's dividend rate could rise.

As stated in previous communications, the past three years have been one of the
most difficult periods for the high-yield market, with such events as the
September economic shock and recent accounting scandals only exacerbating the
problem. As a result of the substantial weakness in the market, we have seen
high-yield bond prices decline sharply and yields rise over much of this period.
The past 12 months remained particularly difficult for many companies in the






Morgan Stanley High Income Advantage Trust III
LETTER TO THE SHAREHOLDERS - JANUARY 31, 2002 continued


telecommunications sector and the many industries within that sector as poor
earnings and lower revenues pushed the sector lower.

The telecommunications sector experienced many rating downgrades and an elevated
default rate during this period, which resulted in security price declines for
most of the sector's bonds. Fixed-line telecommunications was the
worst-performing sector during the past 12 months, down more than 40 percent.
Consequently, allocations in the fixed-line communications and wireless
communications industries accounted for much of the Trust's disappointing
performance. The Trust's positions in lower-rated credits also adversely
affected overall performance.

Over the past year, the Trust's portfolio management team continued to
reposition the portfolio for the current market environment. The team reduced
positions in telecommunications and related industries but increased the average
credit rating for securities in the Trust's portfolio. The Trust continues to
maintain constructive positions in the wireline and wireless communications,
cable and media industries. The Trust initiated positions in more than 60 new
companies, including Collins and Aikman, Stone Energy, Allied Waste, Chesapeake
Energy, Schuler Homes, Salem Communications, Healthnet, PRIMEDIA, Quebecor,
Nextmedia and Beazer Homes. The Trust eliminated positions in many companies
such as Brill Media, Envirodyne, Neff, Friendly's, Windemere, Sabreliner, and
James Cable.

Looking Ahead

The events of September 11 had a negative impact on the economy over the past
six months. We feel, however, that the current spread of the high-yield market
appears to be pricing in a more prolonged downturn with an extended period of
higher default rates than would be consistent with historical experience. We
consider that the monetary and fiscal policy moves that have already been
implemented are likely to bring the economy back to more normal growth levels,
which could lead to a recovery in the high-yield market. The Trust's portfolio
is positioned to participate in any potential recovery.

We appreciate your ongoing support of Morgan Stanley High Income Advantage Trust
III and look forward to continuing to serve your investment needs.

Very truly yours,

/s/ CHARLES A. FIUMEFREDDO              /s/ MITCHELL M. MERIN
Charles A. Fiumefreddo                  Mitchell M. Merin
Chairman of the Board                   President


                                        2


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002



 PRINCIPAL
 AMOUNT IN                                                                            COUPON     MATURITY
 THOUSANDS                                                                             RATE        DATE            VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                  
                   Corporate Bonds (86.0%)

                   Advertising/Marketing Services (0.7%)
$    180           Interep National Radio Sales Inc. ............................      10.00  %  07/01/08     $     120,600
                                                                                                              -------------

                   Aerospace & Defense (1.2%)
     300           Loral Space & Communications Ltd. ............................       9.50     01/15/06           189,000
                                                                                                              -------------

                   Airlines (0.9%)
     215           Air Canada Corp. (Canada) ....................................      10.25     03/15/11           147,275
                                                                                                              -------------

                   Alternative Power Generation (0.8%)
     145           Calpine Corp. ................................................       8.50     02/15/11           120,707
                                                                                                              -------------

                   Auto Parts: O.E.M. (1.6%)
      20           Collins & Aikman Products Co. ................................      11.50     04/15/06            19,100
      70           Collins & Aikman Products Co.- 144A* .........................      10.75     12/31/11            70,700
     165           Dana Corp.- 144A* ............................................       9.00     08/15/11           150,721
     220           Hayes Lemmerz International, Inc. (Series B) (a)(b) ..........       8.25     12/15/08             9,900
      60           Hayes Lemmerz International, Inc. (Series B) (a)(b) ..........       9.125    07/15/07             2,700
                                                                                                              -------------
                                                                                                                    253,121
                                                                                                              -------------
                   Broadcast/Media (1.2%)
     270           Tri-State Outdoor Mediagroup, Inc. (b) .......................      11.00     05/15/08           197,100
                                                                                                              -------------

                   Broadcasting (2.2%)
      70           Radio One, Inc. ..............................................       8.875    07/01/11            73,150
     125           Salem Communications Holding Corp. ...........................       9.00     07/01/11           129,688
      60           XM Satellite Radio Inc. ......................................      14.00     03/15/10            45,000
     115           Young Broadcasting Inc. ......................................      10.00     03/01/11           108,100
                                                                                                              -------------
                                                                                                                    355,938
                                                                                                              -------------


                       See Notes to Financial Statements

                                       3


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued




 PRINCIPAL
 AMOUNT IN                                                                            COUPON     MATURITY
 THOUSANDS                                                                             RATE        DATE             VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                     
                   Cable/Satellite TV (10.1%)
$    240           Adelphia Communications Corp. ................................      10.50  %  07/15/04     $     246,599
   3,750           Australis Holdings Property Ltd. (Australia) (a)(b) ..........      15.00     11/01/02                --
      60           British Sky Broadcasting Group PLC (United Kingdom) ..........       6.875    02/23/09            57,239
     175           British Sky Broadcasting Group PLC (United Kingdom) ..........       8.20     07/15/09           179,547
     225           Callahan Nordhein Westfalen (Germany) ........................      14.00     07/15/10           105,750
     350           Charter Communications Holdings Corp. ........................      11.75++   05/15/11           216,125
     210           CSC Holdings Inc. (Series B) .................................       7.625    04/01/11           207,476
     140           Echostar DBS Corp.- 144A* ....................................       9.125    01/15/09           143,500
     375           Knology Holdings, Inc. .......................................      11.875++  10/15/07           153,750
     155           Ono Finance PLC (United Kingdom) .............................      14.00     02/15/11           110,050
      25           Pegasus Communications Corp. .................................       9.75     12/01/06            21,250
     220           Telewest Communications PLC (United Kingdom) .................      9.875     02/01/10           145,750
     355           United Pan Europe Communications N.V. (Netherlands) ..........     10.875     08/01/09            38,163
                                                                                                              -------------
                                                                                                                  1,625,199
                                                                                                              -------------

                   Casino/Gaming (1.7%)
     950           Aladdin Gaming Capital Corp. (Series B) ......................      13.50++   03/01/10            29,688
      55           Harrahs Operating Co. Inc. ...................................       8.00     02/01/11            57,608
     600           Resort at Summerlin LP (Series B) (a)(b) .....................      13.00     12/15/07                --
     185           Station Casinos, Inc. ........................................       9.875    07/01/10           194,250
                                                                                                              -------------
                                                                                                                    281,546
                                                                                                              -------------

                   Cellular Telephone (1.1%)
      50           Dobson/Sygnet Communications .................................      12.25     12/15/08            51,500
     700           Dolphin Telecom PLC (Series B) (United Kingdom) (a) ..........      14.00++   05/15/09                70
   3,200           Dolphin Telecom PLC (United Kingdom) (a) .....................      11.50++   06/01/08               320
     150           Tritel PCS Inc. ..............................................      12.75++   05/15/09           129,000
                                                                                                              -------------
                                                                                                                    180,890
                                                                                                              -------------
                   Chemicals: Major Diversified (1.2%)
      71           Equistar Chemical/Funding ....................................      10.125    09/01/08            69,935
     130           Huntsman ICI Chemicals .......................................      10.125    07/01/09           119,600
                                                                                                              -------------
                                                                                                                    189,535
                                                                                                              -------------
                   Chemicals: Specialty (1.7%)
      60           Acetex Corp. (Canada) ........................................      10.875    08/01/09            60,600
      15           ISP Chemco-- 144A* ...........................................      10.25     07/01/11            15,600
     125           ISP Holdings Inc.-- 144A* ....................................      10.625    12/15/09           123,750
      40           Millennium America, Inc. .....................................       9.25     06/15/08            40,400
      40           OM Group Inc.-- 144A* ........................................       9.25     12/15/11            41,200
                                                                                                              -------------
                                                                                                                    281,550
                                                                                                              -------------


                       See Notes to Financial Statements

                                       4


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued




 PRINCIPAL
 AMOUNT IN                                                                            COUPON     MATURITY
 THOUSANDS                                                                             RATE        DATE             VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                     
                   Commercial Printing/Forms (1.2%)
$    500           Premier Graphics Inc. (b) ....................................      11.50  %  12/01/05     $      15,625
     155           Quebecor Media Inc. (Canada) .................................      11.125    07/15/11           167,788
      20           Quebecor Media Inc. (Canada) .................................      13.75++   07/15/11            12,650
                                                                                                              -------------
                                                                                                                    196,063
                                                                                                              -------------
                   Consumer/Business Services (3.2%)
     541           Comforce Corp. (Series B) ....................................      15.00+    12/01/09           162,156
     145           Comforce Operating, Inc. .....................................      12.00     12/01/07           106,575
     160           MDC Communications Corp. (Canada) ............................      10.50     12/01/06           120,000
     145           Muzak LLC/Muzak Finance ......................................       9.875    03/15/09           124,700
                                                                                                              -------------
                                                                                                                    513,431
                                                                                                              -------------

                   Containers/Packaging (1.9%)
     315           Owens-Illinois, Inc. .........................................       7.80     05/15/18           258,300
      45           Riverwood International Corp. ................................      10.875    04/01/08            46,350
                                                                                                              -------------
                                                                                                                    304,650
                                                                                                              -------------
                   Diversified-- Manufacturing (2.2%)
     315           Eagle-Picher Industries, Inc. ................................       9.375    03/01/08           187,425
   1,000           Jordan Industries, Inc. (Series B) ...........................      11.75++   04/01/09           170,000
                                                                                                              -------------
                                                                                                                    357,425
                                                                                                              -------------
                   Electric Utilities (1.1%)
     100           Mirant Americas General Inc. .................................       8.30     05/01/11            84,692
      85           PG&E National Energy Group ...................................      10.375    05/16/11            88,682
                                                                                                              -------------
                                                                                                                    173,374
                                                                                                              -------------
                   Electronic Components (0.1%)
      20           Flextronics International Ltd. ...............................       9.875    07/01/10            21,600
                                                                                                              -------------
                   Electronic Distributors (0.8%)
     125           BRL Universal Equipment ......................................       8.875    02/15/08           126,250
   1,000           CHS Electronics, Inc. (a)(b) .................................       9.875    04/15/05             8,750
                                                                                                              -------------
                                                                                                                    135,000
                                                                                                              -------------
                   Electronic Equipment/Instruments (0.5%)
     190           High Voltage Engineering, Inc. ...............................      10.75     08/15/04            74,100
                                                                                                              -------------
                   Electronics/Appliances (0.0%)
   5,000           International Semi-Tech Microelectronics, Inc.
                     (Canada)(a)(b) .............................................      11.50     08/15/03             2,500
                                                                                                              -------------


                       See Notes to Financial Statements

                                       5


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued



 PRINCIPAL
 AMOUNT IN                                                                            COUPON     MATURITY
 THOUSANDS                                                                             RATE        DATE             VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                     
                   Engineering & Construction (1.1%)
$    115           Encompas Services Corp. ......................................      10.50  %  05/01/09     $      71,300
     300           Metromedia Fiber Network, Inc. ...............................      10.00     12/15/09            99,000
                                                                                                              -------------
                                                                                                                    170,300
                                                                                                              -------------

                   Environmental Services (2.3%)
     150           Allied Waste North America Inc. (Series B) ...................      10.00     08/01/09           152,062
     100           Waste Management, Inc. .......................................       7.375    08/01/10           103,456
     110           WMX Technologies, Inc. .......................................       7.00     10/15/06           113,313
                                                                                                              -------------
                                                                                                                    368,831
                                                                                                              -------------

                   Finance/Rental/Leasing (0.2%)
      35           Ford Motor Credit Co. ........................................       7.25     10/25/11            34,379
                                                                                                              -------------
                   Financial Conglomerates (0.3%)
      45           Case Credit Corp. ............................................       6.125    02/15/03            42,856
                                                                                                              -------------
                   Food Distributors (2.1%)
     350           Volume Services America, Inc. ................................      11.25     03/01/09           339,500
                                                                                                              -------------
                   Food: Meat/Poultry/Fish (1.6%)
     105           Michael Foods, Inc. ..........................................      11.75     04/01/11           113,925
     115           Smithfield Foods Inc. ........................................       7.625    02/15/08           112,700
      30           Smithfield Foods Inc. (Series B) .............................       8.00     10/15/09            31,275
                                                                                                              -------------
                                                                                                                    257,900
                                                                                                              -------------
                   Forest Products (2.4%)
     110           Louisiana Pacific Corp. ......................................      10.875    11/15/08           108,900
      40           Louisiana Pacific Corp. ......................................       8.875    08/15/10            39,446
     225           Tembec Industries, Inc. (Canada) .............................       8.50     02/01/11           232,875
                                                                                                              -------------
                                                                                                                    381,221
                                                                                                              -------------

                   Home Building (3.4%)
     160           Beazer Homes USA, Inc. .......................................       8.625    05/15/11           164,799
     130           Centex Corp. .................................................       7.875    02/01/11           132,701
     140           Schuler Homes, Inc. ..........................................       9.375    07/15/09           146,650
     110           Toll Brothers, Inc. ..........................................       8.25     02/01/11           111,100
                                                                                                              -------------
                                                                                                                    555,250
                                                                                                              -------------

                   Hospital/Nursing Management (1.0%)
     145           HCA-- The Healthcare Co. .....................................       8.75     09/01/10           159,500
                                                                                                              -------------


                       See Notes to Financial Statements

                                       6


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued



 PRINCIPAL
 AMOUNT IN                                                                            COUPON     MATURITY
 THOUSANDS                                                                             RATE        DATE             VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                      
                   Hotels/Resorts/Cruiselines (1.4%)
$    500           Epic Resorts LLC (Series B) (a)(b) ...........................      13.00  %  06/15/05     $      70,000
      45           Hilton Hotels Corp. ..........................................       7.95     04/15/07            45,239
     120           HMH Properties (Series B) ....................................       7.875    08/01/08           116,100
                                                                                                              -------------
                                                                                                                    231,339
                                                                                                              -------------

                   Internet Software/Services (1.3%)
     230           Exodus Communications, Inc. (a)(b) ...........................      11.625    07/15/10            50,600
     500           Globix Corp. .................................................      12.50     02/01/10            87,500
     250           PSINet, Inc. (a)(b) ..........................................      10.50     12/01/06            20,000
     600           PSINet, Inc. (a)(b) ..........................................      11.00     08/01/09            48,000
                                                                                                              -------------
                                                                                                                    206,100
                                                                                                              -------------

                   Managed Health Care (2.4%)
     225           Aetna Inc. ...................................................       7.875     03/01/11          225,196
     160           Healthnet, Inc. ..............................................       8.375     04/15/11          163,282
                                                                                                              -------------
                                                                                                                    388,478
                                                                                                              -------------

                   Media Conglomerates (0.7%)
     100           Nextmedia Operating, Inc. - 144A* ............................      10.75     07/01/11           105,500
                                                                                                              -------------
                   Medical Distributors (0.3%)
      45           AmerisourceBergen Corp. ......................................       8.125    09/01/08            47,025
                                                                                                              -------------
                   Medical Specialties (0.1%)
     900           Mediq/PRN Life Support Services, Inc. (b) ....................      11.00     06/01/08             9,000
                                                                                                              -------------
                   Medical/Nursing Services (1.1%)
     175           Fresenius Med Cap Trust ......................................       7.875    06/15/11           172,813
                                                                                                              -------------
                   Miscellaneous Commercial Services (0.2%)
      40           Coinmach Corp. - 144A* .......................................       9.00     02/01/10            40,700
                                                                                                              -------------
                   Movies/Entertainment (1.6%)
     160           Alliance Atlantis Communications, Inc. (Canada) ..............      13.00     12/15/09           176,000
      80           Six Flags, Inc. - 144A* ......................................       8.875    02/01/10            79,900
                                                                                                              -------------
                                                                                                                    255,900
                                                                                                              -------------
                   Office Equipment/Supplies (0.0%)
   1,300           Mosler, Inc. (a)(b)                                                 11.00     04/15/03                --
                                                                                                              -------------



                       See Notes to Financial Statements

                                       7




Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued



PRINCIPAL
 AMOUNT IN                                                                            COUPON     MATURITY
 THOUSANDS                                                                             RATE        DATE             VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                      

                   Oil & Gas Pipelines (0.4%)
$     75           Williams Companies Inc. (Series A) ..............................    7.50  %  01/15/31          $ 67,752
                                                                                                                   ---------
                   Oil & Gas Production (2.2%)
     235           Chesapeake Energy Corp. .........................................    8.125    04/01/11           224,425
      55           Stone Energy Corp. -- 144A* .....................................    8.25     12/15/11            55,688
      80           Vintage Petroleum, Inc. .........................................    7.875    05/15/11            73,600
                                                                                                                   ---------
                                                                                                                    353,713
                                                                                                                   ---------

                   Oilfield Services/Equipment (0.5%)
      60           Hanover Equipment Trust -- 144A* ................................    8.50     09/01/08            59,700
      25           Hanover Equipment Trust -- 144A* ................................    8.75     09/01/11            24,875
                                                                                                                   ---------
                                                                                                                     84,575
                                                                                                                   ---------
                   Other Consumer Specialties (0.7%)
     165           Samsonite Corp. .................................................   10.75     06/15/08           106,425
                                                                                                                   ---------

                   Other Metals/Minerals (1.0%)
      80           Murrin Murrin Holdings Property Ltd. (Australia) ................     9.375    08/31/07            55,200
     110           Phelps Dodge Corp. ..............................................     8.75     06/01/11           107,969
                                                                                                                   ---------
                                                                                                                     163,169
                                                                                                                   ---------
                   Publishing: Books/Magazines (1.0%)
     175           PRIMEDIA, Inc. ..................................................    8.875     05/15/11           157,938
                                                                                                                   ---------

                   Publishing: Newspapers (0.8%)
      45           Belo Corp. ......................................................     8.00     11/01/08            45,962
      90           Hollinger Participation -- 144A* (Canada) .......................  12.125+     11/15/10            81,000
                                                                                                                   ---------
                                                                                                                     126,962
                                                                                                                   ---------

                   Pulp & Paper (0.9%)
      35           Longview Fibre Co. 144A* ........................................    10.00     01/15/09            35,875
     110           Norske Skog Canada Ltd. (Canada) -- 144A* .......................     8.625    06/15/11           111,650
                                                                                                                   ---------
                                                                                                                     147,525
                                                                                                                   ---------
                   Real Estate Development (0.7%)
     120           CB Richard Ellis Services Inc. ..................................    11.25     06/15/11           110,400
                                                                                                                   ---------

                   Real Estate Investment Trust (0.4%)
      65           Istar Financial Inc. ............................................     8.75     08/15/08            64,804
                                                                                                                   ---------



                       See Notes to Financial Statements

                                       8


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued



PRINCIPAL
 AMOUNT IN                                                                              COUPON   MATURITY
 THOUSANDS                                                                               RATE      DATE             VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                      

                   Recreational Products (1.0%)
$    150           International Game Technology ..................................      8.375 %  05/15/09         $ 159,750
                                                                                                                   ----------

                   Restaurants (1.2%)
   6,251           American Restaurant Group Holdings, Inc. -- 144A* (c) ..........      0.00     12/15/05           191,271
   1,500           FRD Acquisition Corp. (Series B) (a)(b) ........................     12.50     07/15/04             7,500
                                                                                                                   ----------
                                                                                                                     198,771
                                                                                                                   ----------
                   Retail -- Specialty (1.1%)
     185           Pantry, Inc. ...................................................     10.25     10/15/07           171,125
                                                                                                                   ----------

                   Savings Banks (0.1%)
      25           Golden State Holdings ..........................................     7.125     08/01/05            24,666
                                                                                                                   ----------

                   Semiconductors (0.3%)
      45           Fairchild Semiconductor Corp. ..................................     10.50     02/01/09            48,488
                                                                                                                   ----------

                   Services to the Health Industry (1.2%)
      75           Anthem Insurance -- 144A* ......................................     9.125     04/01/10            81,466
     110           Omnicare, Inc. .................................................     8.125     03/15/11           115,225
                                                                                                                   ----------
                                                                                                                     196,691
                                                                                                                   ----------
                   Specialty Stores (0.5%)
      75           Autonation, Inc. ...............................................      9.00     08/01/08            78,000
                                                                                                                   ----------

                   Specialty Telecommunications (3.3%)
   1,000           Birch Telecom Inc. (b) .........................................     14.00     06/15/08            10,000
     300           DTI Holdings, Inc. (Series B) (a) ..............................     12.50++   03/01/08             4,500
     950           Esprit Telecom Group PLC (United Kingdom) (b) ..................     11.50     12/15/07             2,375
     500           Esprit Telecom Group PLC (United Kingdom) (b) ..................     10.875    06/15/08             1,250
   1,800           Firstworld Communications, Inc. ................................     13.00++   04/15/08           107,999
     225           Global Crossing Holdings, Ltd. (Bermuda) (a)(b) ................      8.70     08/01/07            15,750
     110           Global Crossing Holdings, Ltd. (Bermuda) (a)(b) ................      9.50     11/15/09             5,775
     510           GT Group Telecom Inc. (Canada) .................................     13.25++   02/01/10            66,300
      60           McLeodUSA, Inc. (a)(b) .........................................     11.375    01/01/09            15,000
     250           McLeodUSA, Inc. (a)(b) .........................................     11.50     05/01/09            58,750
     205           Pac-West Telecomm, Inc. ........................................     13.50     02/01/09            61,500
     425           Primus Telecommunications Group, Inc. (Series B) ...............      9.875    05/15/08            89,249
     250           Versatel Telecom International N.V. (Netherlands) ..............     13.25     05/15/08            80,000
     700           Viatel Inc. (a)(b) .............................................     11.25     04/15/08               875
     200           Viatel Inc. (a) ................................................     12.50++   04/15/08               250


                       See Notes to Financial Statements



                                       9



Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued



PRINCIPAL
 AMOUNT IN                                                                             COUPON        MATURITY
 THOUSANDS                                                                              RATE           DATE          VALUE
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                                        
$    250           Viatel Inc. (issued 03/19/99) (a)(b) ...........................     11.50   %    03/15/09       $    313
     300           Viatel Inc. (issued 12/08/99) (a)(b) ...........................     11.50        03/15/09            375
     735           World Access, Inc. (a)(b)(c) ...................................     13.25        01/15/08          7,350
     250           Worldwide Fiber Inc. (Canada) (a)(b) ...........................     12.00        08/01/09            313
                                                                                                                   ----------
                                                                                                                     527,924

                   Telecommunications (5.3%)
   1,300           e. Spire Communications, Inc. (a)(b) ...........................     13.75        07/15/07         168,999
     390           Focal Communications Corp. (Series B) ..........................     12.125++     02/15/08         117,000
     250           Hyperion Telecommunications, Inc. (Series B) ...................     12.25        09/01/04          31,250
     250           MGC Communications, Inc. .......................................     13.00        04/01/10          35,000
     500           NEXTLINK Communications LLC ....................................     12.50        04/15/06          75,000
     390           NTL Communications Corp. .......................................     11.875       10/01/10         142,350
     900           Rhythms Netconnections, Inc. (a)(b) ............................     12.75        04/15/09         108,000
   1,500           Rhythms Netconnections, Inc. (a)(b) ............................     14.00        02/15/10          97,500
     250           Startec Global Communications Corp. (a)(b) .....................     12.00        05/15/08           2,500
     115           Talton Holdings, Inc. (Series B) ...............................     11.00        06/30/07          73,600
                                                                                                                   ----------
                                                                                                                      851,199
                                                                                                                   ----------

                   Trucks/Construction/Farm Machinery (1.8%)
      45           Case Corp. (Series B)...........................................      6.25        12/01/03          42,430
     305           J.B. Poindexter & Co., Inc. ....................................     12.50        05/15/04         247,050
                                                                                                                   ----------
                                                                                                                      289,480
                                                                                                                   ----------

                   Wholesale Distributors (0.6%)
      90           Buhrmann US, Inc. ..............................................     12.25        11/01/09          91,800
                                                                                                                   ----------

                   Wireless Telecommunications (2.1%)
     150           American Cellular Corp. ........................................      9.50        10/15/09         141,000
     285           AMSC Aquisition Co., Inc. (Series B) (a)(b) ....................     12.25        04/01/08         109,725
   4,000           CellNet Data Systems, Inc. (a)(b) ..............................     14.00++      10/01/07           5,000
     500           Globalstar LP/Capital Corp. (b) ................................     10.75        11/01/04          45,000
     600           Orbcomm Global LP/Capital Corp. (Series B) (a)(b) ..............     14.00        08/15/04          18,000
   1,000           USA Mobile Communications Holdings, Inc. (a)(b) ................     14.00        11/01/04          20,000
     500           WinStar Communications, Inc. (a)(b) ............................     12.75        04/15/10              50
                                                                                                                   ----------
                                                                                                                      338,775
                                                                                                                   ----------
                   Total Corporate Bonds (Cost $47,908,753)                                                        13,847,128
                                                                                                                   ----------
                   Convertible Bonds (0.7%)

                   Telecommunication Equipment (0.7%)
     215           Corning Inc. (Cost $118,190) ...................................      0.00        11/08/15         116,100
                                                                                                                   ----------



                       See Notes to Financial Statements

                                       10


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued




            NUMBER OF
              SHARES                                                                      VALUE
- ---------------------------------------------------------------------------------------------------
                                                                                    
                            Preferred Stocks (5.6%)

                            Broadcasting (0.9%)
              17            Paxson Communications Corp.+ ..........................    $   145,010
                                                                                       ------------

                            Cellular Telephone (0.8%)
              56            Dobson Communications+ ................................         51,380
             154            Nextel Communications, Inc. (Series D)+ ...............         73,934
                                                                                       ------------
                                                                                           125,314
                                                                                       ------------

                            Electric Utilities (1.2%)
             172            TNP Enterprises, Inc.+ ................................        188,340
                                                                                       ------------

                            Publishing: Books/Magazines (0.1%)
             130            PRIMEDIA, Inc. ........................................          8,320
                                                                                       ------------

                            Specialty Telecommunications (1.2%)
             171            Broadwing Communications, Inc. (Series B) .............        100,890
              15            Crown Castle International Corp.+ .....................          9,000
              83            Intermedia Communication Inc. (Series B)+ .............         85,595
           4,102            XO Communications, Inc.+ ..............................             41
                                                                                       ------------
                                                                                           195,526
                                                                                       ------------

                            Telecommunication Equipment (1.4%)
         470,213            FWT, Inc. (Class A)+(c) ...............................        235,106
                                                                                       ------------

                            Total Preferred Stocks (Cost $2,618,356) ..............        897,616
                                                                                       ------------

                            Common Stocks (d) (1.7%)

                            Apparel/Footwear Retail (0.0%)
         551,830            County Seat Stores, Inc. (c)                                         --
                                                                                       ------------

                            Consumer/Business Services (1.1%)
           9,750            Anacomp Inc. (Class A) (c) ............................        170,624
                                                                                       ------------



                       See Notes to Financial Statements

                                       11


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued




          NUMBER OF
           SHARES                                                                        VALUE
- ---------------------------------------------------------------------------------------------------
                                                                                     

                            Foods: Specialty/Candy (0.0%)
             453            SFAC New Holdings Inc. (c) ............................   $    --
              83            SFFB Holdings, Inc. (c) ...............................        --
                                                                                       ------------
          90,000            Specialty Foods Acquisition Corp. -- 144A*                     --
                                                                                       ------------
                            Medical/Nursing Services (0.0%)
         104,665            Raintree Healthcare Corp. (c) .........................        --
                                                                                       ------------
                            Restaurants (0.0%)
           4,750            American Restaurant Group Holdings, Inc. -- 144A* .....        --
                                                                                       ------------
                            Specialty Telecommunications (0.0%) ...................
           6,667            Versatel Telecom International N.V.(ADR)(Netherlands) .       5,203
           3,142            World Access, Inc. (c) ................................           3
                                                                                       ------------
                                                                                          5,206
                                                                                       ------------

                            Telecommunication Equipment (0.0%)
          41,066            FWT, Inc. (Class A) (c) ...............................         411
                                                                                       ------------

                            Telecommunications (0.6%)
          24,260            Covad Communications Group, Inc. (c) ..................      54,585
          76,904            Focal Communications Corp. (c) ........................      31,531
                                                                                       ------------
                                                                                         86,116
                                                                                       ------------

                            Textiles (0.0%)
         112,296            United States Leather, Inc. (c) .......................        --
                                                                                       ------------

                            Wireless Telecommunications (0.0%)
         176,739            Arch Wireless, Inc. (c) ...............................       1,944
           8,393            Vast Solutions, Inc. (Class B1) (c) ...................        --
           8,393            Vast Solutions, Inc. (Class B2) (c) ...................        --
           8,393            Vast Solutions, Inc. (Class B3) (c) ...................        --
                                                                                       ------------
                                                                                          1,944
                                                                                       ------------
                            Total Common Stocks (Cost $13,940,919)                      264,301
                                                                                       ------------



                       See Notes to Financial Statements

                                       12




Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENTS - JANUARY 31, 2002 continued





 NUMBER OF                                                                    EXPIRATION
 WARRANTS                                                                        DATE                VALUE
- -----------------------------------------------------------------------------------------------------------------
                                                                                            
                Warrants (d) (0.1%)

                Aerospace & Defense (0.0%)

 2,500          Sabreliner Corp.-- 144A* ...................................   04/15/03            $    --
                                                                                                   -------------
                Broadcasting (0.0%)
   130          XM Satellite Radio Holdings Inc.-- 144A* ...................   03/15/10               2,600
                                                                                                   -------------
                Cable/Satellite TV (0.0%)
   155          Ono Finance PLC-- 144A* (United Kingdom) ...................   02/15/11               1,163
                                                                                                    -------------
               Casino/Gaming (0.0%)
17,750          Aladdin Gaming Enterprises, Inc.-- 144A* ...................   03/01/10                 --
   500          Resort at Summerlin LP-- 144A* .............................   12/15/07                 --
                                                                                                   -------------
                                                                                                        --
                                                                                                   -------------
                Electric Utilities (0.1%)
   150          TNP Enterprises, Inc.-- 144A* ..............................   04/01/11               4,500
                                                                                                   -------------
                Hotels/Resorts/Cruiselines (0.0%)
   500          Epic Resorts LLC-- 144A* ...................................   06/15/05                 --
                                                                                                   -------------
                Internet Software/Services (0.0%)
 1,800          Verado Holdings, Inc.-- 144A* ..............................   04/15/08                 --
                                                                                                   -------------
                Specialty Telecommunications (0.0%)
 1,000          Birch Telecom Inc.-- 144A* .................................   06/15/08                 --
   510          GT Group Telecom Inc. (Canada)-- 144A* .....................   02/01/10               2,550
                                                                                                   -------------
                                                                                                      2,550
                                                                                                   -------------
                Telecommunications (0.0%)
   250          Startec Global Communications Corp.-- 144A* ................   05/15/08                 --
                                                                                                   -------------

                Wireless Telecommunications (0.0%)
   300          Motient Corp.-- 144A* ......................................   04/01/08                   3
                                                                                                   -------------
                Total Warrants (Cost $122,813) .............................                         10,816
                                                                                                   -------------


                       See Notes to Financial Statements


                                       13


Morgan Stanley High Income Advantage Trust III
PORTFOLIO OF INVESTMENT - JANUARY 31, 2002 continued




  PRINCIPAL
  AMOUNT IN                                                                       COUPON       MATURITY
  THOUSANDS                                                                        RATE          DATE          VALUE
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                   
                  Short-Term Investment (1.8%)

                  Repurchase Agreement
  $  296          Joint repurchase agreement account (dated 01/31/02;
                    proceeds $296,016) (e) (Cost $296,000) ......................  1.91%       02/01/02     $     296,000
                                                                                                            -------------

                  Total Investments (Cost $65,005,031) (f) ....................................    95.9%       15,431,961
                  Other Assets in Excess of Liabilities                                             4.1           660,450
                                                                                                  -----     -------------
                  Net Assets ..................................................................   100.0%    $  16,092,411
                                                                                                  =====     =============

- ---------------
    ADR        American Depository Receipt
    *          Resale is restricted to qualified institutional investors.
    +          Payment-in-kind security.
    ++         Currently a zero coupon bond and will pay interest at the rate shown at a future specified date.
    (a)        Issuer in bankruptcy.
    (b)        Non-income producing security; bond in default.
    (c)        Acquired through exchange offer.
    (d)        Non-income producing securities.
    (e)        Collateralized by federal agency and U.S. Treasury obligations.
    (f)        The aggregate cost for federal income tax purposes approximates the aggregate cost for book purposes.
               The aggregate gross unrealized appreciation is $279,967 and the aggregate gross unrealized depreciation
               is $49,853,037, resulting in net unrealized depreciation of $49,573,070.



                       See Notes to Financial Statements

                                       14




Morgan Stanley High Income Advantage Trust III
FINANCIAL STATEMENTS

Statement of Assets and Liabilities
January 31, 2002

Assets:
Investments in securities, at value
  (cost $65,005,031).............................             $    15,431,961
Cash.............................................                      17,436
Receivable for:
    Investments sold.............................                     580,894
    Interest.....................................                     447,816
Prepaid expenses and other assets................                       2,489
                                                              ----------------
    Total Assets.................................                  16,480,596
                                                              ----------------

Liabilities:
Payable for:
    Investments purchased........................                     322,858
    Investment management fee....................                      11,517
Accrued expenses and other payables..............                      53,810
                                                              ----------------
    Total Liabilities............................                     388,185
                                                              ----------------
    Net Assets...................................             $    16,092,411
                                                              ================

Composition of Net Assets:
Paid-in-capital..................................             $   108,005,263
Net unrealized depreciation......................                 (49,573,070)
Dividends in excess of net investment income.....                    (493,274)
Accumulated net realized loss....................                 (41,846,508)
                                                              ----------------
    Net Assets...................................             $    16,092,411
                                                              ================

Net Asset Value Per Share,
  12,826,179 shares outstanding
  (unlimited shares authorized of $.01 par value)                       $1.25
                                                                        =====

                       See Notes to Financial Statements

                                       15


Morgan Stanley High Income Advantage Trust III
FINANCIAL STATEMENTS continued



Statement of Operations
For the year ended January 31, 2002

Net Investment Income:

Income
Interest...............................         $    3,418,773
Dividends..............................                 12,244
                                                --------------
    Total Income.......................              3,431,017
                                                --------------

Expenses
Investment management fee..............                158,273
Professional fees......................                 79,061
Transfer agent fees and expenses.......                 42,906
Registration fees......................                 31,853
Shareholder reports and notices........                 27,429
Custodian fees.........................                 16,713
Trustees' fees and expenses............                 11,644
Other..................................                  8,545
                                                --------------
    Total Expenses.....................                376,424
                                                --------------
    Net Investment Income..............              3,054,593
                                                --------------

Net Realized and Unrealized Loss:
Net realized loss......................             (6,633,349)
Net change in unrealized depreciation..             (6,609,909)
                                                --------------
    Net Loss...........................            (13,243,258)
                                                --------------
Net Decrease...........................         $  (10,188,665)
                                                ==============


                       See Notes to Financial Statements

                                       16



Morgan Stanley High Income Advantage Trust III
FINANCIAL STATEMENTS continued



Statement of Changes in Net Assets

                                                                        FOR THE YEAR                FOR THE YEAR
                                                                            ENDED                        ENDED
                                                                      JANUARY 31, 2002             JANUARY 31, 2001
                                                                      ----------------             ----------------
                                                                                                  
 Increase (Decrease) in Net Assets:

 Operations:
 Net investment income...................................              $    3,054,593               $    7,606,829
 Net realized loss.......................................                  (6,633,349)                  (6,833,509)
 Net change in unrealized depreciation...................                  (6,609,909)                 (14,394,604)
                                                                       ---------------              ---------------
     Net Decrease........................................                 (10,188,665)                 (13,621,284)
 Dividends to shareholders from net investment income....                  (3,734,923)                  (8,216,085)
 Decrease from transactions in shares of beneficial
   interest..............................................                     (16,018)                          --
                                                                       ---------------              ---------------
     Net Decrease........................................                 (13,939,606)                 (21,837,369)

 Net Assets:
 Beginning of period.....................................                  30,032,017                   51,869,386
                                                                       ---------------              ---------------

 End of Period
 (Including dividends in excess of net investment income
 of $493,274 and $67,712, respectively)..................              $   16,092,411               $   30,032,017
                                                                       ===============              ==============



                       See Notes to Financial Statements

                                       17


Morgan Stanley High Income Advantage Trust III
NOTES TO FINANCIAL STATEMENTS - JANUARY 31, 2002

1. Organization and Accounting Policies

Morgan Stanley High Income Advantage Trust III (the "Trust"), formerly Morgan
Stanley Dean Witter High Income Advantage Trust III, is registered under the
Investment Company Act of 1940, as amended, as a diversified, closed-end
management investment company. The Trust's primary investment objective is to
earn a high level of current income and, as a secondary objective, capital
appreciation, but only when consistent with its primary objective. The Trust
seeks to achieve its objective by investing primarily in lower-rated fixed
income securities. The Trust was organized as a Massachusetts business trust on
November 23, 1988 and commenced operations on February 28, 1989.

The preparation of financial statements in accordance with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts and disclosures. Actual results could differ from
those estimates.

The following is a summary of significant accounting policies:

A. Valuation of Investments -- (1) an equity security listed or traded on the
New York or American Stock Exchange, NASDAQ, or other exchange is valued at its
latest sale price, prior to the time when assets are valued; if there were no
sales that day, the security is valued at the latest bid price (in cases where
securities are traded on more than one exchange; the securities are valued on
the exchange designated as the primary market pursuant to procedures adopted by
the Trustees); (2) all other portfolio securities for which over-the-counter
market quotations are readily available are valued at the latest available bid
price; (3) when market quotations are not readily available, including
circumstances under which it is determined by Morgan Stanley Investment Advisors
Inc. (the "Investment Manager"), formerly Morgan Stanley Dean Witter Advisors
Inc., that sale or bid prices are not reflective of a security's market value,
portfolio securities are valued at their fair value as determined in good faith
under procedures established by and under the general supervision of the
Trustees; (4) certain of the Trust's portfolio securities may be valued by an
outside pricing service approved by the Trustees. The pricing service may
utilize a matrix system incorporating security quality, maturity and coupon as
the evaluation model parameters, and/or research and evaluations by its staff,
including review of broker-dealer market price quotations, if available, in
determining what it believes is the fair valuation of the portfolio securities
valued by such pricing service; and (5) short-term debt securities having a
maturity date of more than sixty days at time of purchase are valued on a
mark-to-market basis until sixty days prior to maturity and thereafter at
amortized cost based on their value on the 61st day. Short-term debt securities
having a maturity date of sixty days or less at the time of purchase are valued
at amortized cost.

                                       18


Morgan Stanley High Income Advantage Trust III
NOTES TO FINANCIAL STATEMENTS - JANUARY 31, 2002 continued


B. Accounting for Investments -- Security transactions are accounted for on the
trade date (date the order to buy or sell is executed). Realized gains and
losses on security transactions are determined by the identified cost method.
Discounts are accreted and premiums are amortized over the life of the
respective securities. Interest income is accrued daily except where collection
is not expected.

C. Joint Repurchase Agreement Account -- Pursuant to an Exemptive Order issued
by the Securities and Exchange Commission, the Trust, along with other
affiliated entities managed by the Investment Manager, may transfer uninvested
cash balances into one or more joint repurchase agreement accounts. These
balances are invested in one or more repurchase agreements for cash, or U.S.
Treasury or federal agency obligations.

D. Federal Income Tax Status -- It is the Trust's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated investment
companies and to distribute substantially all of its taxable income to its
shareholders. Accordingly, no federal income tax provision is required.

E. Dividends and Distributions to Shareholders -- The Trust records dividends
and distributions to its shareholders on the ex-dividend date. The amount of
dividends and distributions from net investment income and net realized capital
gains are determined in accordance with federal income tax regulations which may
differ from generally accepted accounting principles. These "book/tax"
differences are either considered temporary or permanent in nature. To the
extent these differences are permanent in nature, such amounts are reclassified
within the capital accounts based on their federal tax-basis treatment;
temporary differences do not require reclassification. Dividends and
distributions which exceed net investment income and net realized capital gains
for financial reporting purposes but not for tax purposes are reported as
dividends in excess of net investment income or distributions in excess of net
realized capital gains. To the extent they exceed net investment income and net
realized capital gains for tax purposes, they are reported as distributions of
paid-in-capital.

2. Investment Management Agreement

Pursuant to an Investment Management Agreement, the Trust pays the Investment
Manager a management fee, calculated weekly and payable monthly, by applying the
following annual rates to the Trust's weekly net assets: 0.75% to the portion of
weekly net assets not exceeding $250 million; 0.60% to the portion of weekly net
assets exceeding $250 million but not exceeding $500 million; 0.50% to the
portion of weekly net assets exceeding $500 million but not exceeding $750
million; 0.40% to the portion of weekly net assets exceeding $750 million but


                                       19


Morgan Stanley High Income Advantage Trust III
NOTES TO FINANCIAL STATEMENTS - JANUARY 31, 2002 continued


not exceeding $1 billion; and 0.30% to the portion of weekly net assets
exceeding $1 billion.

3. Security Transactions and Transactions with Affiliates

The cost of purchases and proceeds from sales of portfolio securities, excluding
short-term investments, for the year ended January 31, 2002 aggregated
$15,252,699 and $15,047,073, respectively.

Morgan Stanley Trust, an affiliate of the Investment Manager, is the Trust's
transfer agent. At January 31, 2002, the Trust had transfer agent fees and
expenses payable of approximately $3,200.

4. Shares of Beneficial Interest




                                                                                                    CAPITAL
                                                                                                    PAID IN
                                                                                                   EXCESS OF
                                                                SHARES          PAR VALUE          PAR VALUE
                                                            --------------    --------------   ------------------
                                                                                        
Balance, January 31, 2000 and January 31, 2001...........     12,837,779       $  128,378      $   111,148,908
Treasury shares purchased and retired (weighted average
  discount 2.38%)*.......................................        (11,600)            (116)             (15,902)
Reclassification due to permanent book/tax differences...             --               --           (3,256,005)
                                                            --------------    --------------   ------------------
Balance, January 31, 2002,...............................     12,826,179       $  128,262      $   107,877,001
                                                            ==============    ==============   ==================


- ----------
     *    The Trustees have voted to retire the shares purchased.


5. Dividends

The Trust declared the following dividends from net investment income:



      DECLARATION                   AMOUNT              RECORD               PAYABLE
         DATE                      PER SHARE             DATE                 DATE
- ----------------------            -----------    ------------------   --------------------
                                                                   
January 29, 2002                    $ 0.012       February 8, 2002     February 22, 2002
February 26, 2002                   $ 0.012         March 8, 2002        March 22, 2002


6. Federal Income Tax Status

At January 31, 2002, the Trust had a net capital loss carryover of approximately
$40,649,000, which may be used to offset future capital gains to the extent
provided by regulations, which is available through January 31 of the following
years:



                                       AMOUNT IN THOUSANDS
- ---------------------------------------------------------------------------------------------------------
   2003             2004        2005         2006        2007         2008         2009         2010
- ---------         --------   ----------   ---------   --------    ----------   ----------    ------------
                                                                        
$  10,665         $  4,258    $ 3,007      $ 5,910     $ 1,633      $ 1,867      $ 2,195     $  11,114
=========         ========   ==========   =========   ========    ==========   ==========    ==========




                                       20


Capital losses incurred after October 31 ("post-October" losses) within the
taxable year are deemed to arise on the first business day of the Trust's next
taxable year. The Trust incurred and will elect to defer net capital losses of
approximately $1,198,000 during fiscal 2002.

As of January 31, 2002, the Trust had temporary book/tax differences
attributable to post-October losses, and book amortization of discounts on debt
securities and interest on bonds in default and permanent book/tax differences
attributable to an expired capital loss carryover and tax adjustments on debt
securities sold by the Trust. To reflect reclassifications arising from the
permanent differences, paid-in-capital was charged $3,256,005, dividends in
excess of net investment income was charged $84,916 and accumulated net realized
loss was credited $3,340,921.

7. Change in Accounting Policy

Effective February 1, 2001, the Trust has adopted the provisions of the AICPA
Audit and Accounting Guide for Investment Companies, as revised, related to
premiums and discounts on debt securities. The cumulative effect of this
accounting change had no impact on the net assets of the Trust, but resulted in
a $339,684 increase in the cost of securities and a corresponding increase to
undistributed net investment income based on securities held as of January 31,
2001.

The effect of this change for the year ended January 31, 2002 was to increase
net investment income by $64,494; decrease unrealized depreciation by $20,422;
and increase net realized losses by $84,916. The statement of changes in net
assets and the financial highlights for prior periods have not been restated to
reflect this change.

8. Litigation

On August 29, 2001, a purported class action was filed on behalf of investors in
Morgan Stanley High Income Advantage Trust III alleging that the Trust, its
investment advisor and certain of its officers violated the Investment Company
Act of 1940 by deviating from a fundamental investment restriction by
purportedly investing over 25% of its assets in a single industry. The Trust,
its investment advisor and officers believe the suit to be without merit and
intend to vigorously contest the action.


                                       21


Morgan Stanley High Income Advantage Trust III
FINANCIAL HIGHLIGHTS

Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:



                                                                                FOR THE YEAR ENDED JANUARY 31
                                                    --------------------------------------------------------------------------------
                                                         2002             2001             2000              1999             1998
                                                    ------------     --------------     -----------       -----------      ---------
                                                                                                             
Selected Per Share Data:

Net asset value, beginning of period............    $    2.34         $    4.04       $    5.02         $    6.18         $   6.11
                                                    ------------     --------------     -----------       -----------      ---------
Income (loss) from investment operations:
    Net investment income.......................         0.24(1)           0.59            0.66              0.72             0.78
    Net realized and unrealized gain (loss).....        (1.04)(1)         (1.65)          (0.94)            (1.16)            0.05
                                                    ------------     --------------     -----------       -----------      ---------
Total income (loss) from investment operations..        (0.80)            (1.06)          (0.28)            (0.44)            0.83
                                                    ------------     --------------     -----------       -----------      ---------
Less dividends from net investment income.......        (0.29)            (0.64)          (0.70)            (0.72)           (0.76)
                                                    ------------     --------------     -----------       -----------      ---------
Net asset value, end of period..................    $    1.25         $    2.34       $    4.04         $    5.02         $   6.18
                                                    ============     ==============     ===========       ===========      =========
Market value, end of period.....................    $    1.27         $    3.97       $   4.188         $   5.938         $  7.375
                                                    ============     ==============     ===========       ===========      =========
Total Return+...................................       (63.16)%           11.05%         (19.47)%          (10.59)%          16.86%

Ratios to Average Net Assets:
Expenses........................................         1.79%             1.18%           1.08%             1.05%            0.96%

Net investment income...........................        14.51%(1)         17.89%          14.78%            12.61%           12.70%

Supplemental Data:
Net assets, end of period, in thousands.........    $  16,092         $  30,032       $  51,869         $  64,696         $ 79,572

Portfolio turnover rate.........................           76%               21%             40%               81%             113%


- ----------

     +    Total return is based upon the current market value on the last day of
          each period reported. Dividends are assumed to be reinvested at the
          prices obtained under the Trust's dividend reinvestment plan. Total
          return does not reflect brokerage commissions.

     (1)  Effective February 1, 2001, the Trust has adopted the provisions of
          the AICPA Audit and Accounting Guide for Investment Companies, as
          revised, related to premiums and discounts on debt securities. The
          effect of this change for the year ended January 31, 2002 was to
          increase net investment income per share and increase net realized and
          unrealized loss per share by $0.01 and to increase the ratio of net
          investment income to average net assets by 0.31%. The Financial
          Highlights data presented in this table for prior periods has not been
          restated to reflect this change.

                       See Notes to Financial Statements

                                       22



Morgan Stanley High Income Advantage Trust III
INDEPENDENT AUDITORS' REPORT

To the Shareholders and Board of Trustees of Morgan Stanley High Income
Advantage Trust III:

We have audited the accompanying statement of assets and liabilities of Morgan
Stanley High Income Advantage Trust III (the "Trust"), formerly Morgan Stanley
Dean Witter High Income Advantage Trust III, including the portfolio of
investments, as of January 31, 2002, and the related statements of operations
for the year then ended and changes in net assets for each of the two years in
the period then ended, and the financial highlights for each of the five years
in the period then ended. These financial statements and financial highlights
are the responsibility of the Trust's management. Our responsibility is to
express an opinion on these financial statements and financial highlights based
on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States of America. Those standards require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material misstatement. An audit
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements. Our procedures included confirmation of
securities owned as of January 31, 2002, by correspondence with the custodian
and brokers. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to
above present fairly, in all material respects, the financial position of Morgan
Stanley High Income Advantage Trust III as of January 31, 2002, the results of
its operations for the year then ended, the changes in its net assets for each
of the two years in the period then ended, and the financial highlights for each
of the five years in the period then ended, in conformity with accounting
principles generally accepted in the United States of America.

Deloitte & Touche LLP
New York, New York
March 12, 2002


                       2002 Federal Tax Notice (unaudited)

     Of the Trust's ordinary income dividends paid during the fiscal year ended
     January 31, 2002, 0.03% was attributable to qualifying Federal obligations.
     Please consult your tax advisor to determine if any portion of the
     dividends you received is exempt from state income tax.

                                       23


Morgan Stanley High Income Advantage Trust III
TRUSTEE AND OFFICER INFORMATION



Independent Trustees:

                                                                                                                          Number of
                                                            Term of                                                    Portfolios in
                                           Position(s)    Office and                                                    Fund Complex
        Name, Age and Address of            Held with      Length of                                                    Overseen by
           Independent Trustee             Registrant     Time Served*    Principal Occupation(s) During Past 5 Years     Trustee**
- ------------------------------------    --------------  ----------------  -------------------------------------------  -------------
                                                                                                            
Michael Bozic (61)                          Trustee      Trustee since    Retired; Director or Trustee of the              129
c/o Mayer, Brown, Rowe & Maw                             April 1994       Morgan Stanley Funds and the TCW/DW
Counsel to the Independent Trustees                                       Term Trusts; formerly Vice Chairman
1675 Broadway                                                             of Kmart Corporation (December
New York, NY                                                              1998- October 2000), Chairman and
                                                                          Chief Executive Officer of Levitz
                                                                          Furniture Corporation (November
                                                                          1995-November 1998) and President
                                                                          and Chief Executive Officer of Hills
                                                                          Department Stores (May 1991-July 1995);
                                                                          formerly variously Chairman, Chief
                                                                          Executive Officer, President and Chief
                                                                          Operating Officer (1987-1991) of the
                                                                          Sears Merchandise Group of Sears,
                                                                          Roebuck & Co.

Edwin J. Garn (69)                          Trustee      Trustee since    Director or Trustee of the Morgan                129
c/o Summit Ventures LLC                                  January 1993     Stanley Funds and the TCW/DW Term
1 Utah Center                                                             Trusts; formerly United States
201 S. Main Street                                                        Senator (R-Utah) (1974-1992) and
Salt Lake City, UT                                                        Chairman, Senate Banking Committee
                                                                          (1980-1986); formerly Mayor of Salt
                                                                          Lake City, Utah (1971-1974);
                                                                          formerly Astronaut, Space Shuttle
                                                                          Discovery (April 12-19, 1985); Vice
                                                                          Chairman, Huntsman Corporation
                                                                          (chemical company); member of the
                                                                          Utah Regional Advisory Board of
                                                                          Pacific Corp.

Wayne E. Hedien (68)                        Trustee      Trustee since    Retired; Director or Trustee of the              129
c/o Mayer, Brown, Rowe & Maw                             September 1997   Morgan Stanley Funds and the TCW/DW
Counsel to the Independent Trustees                                       Term Trusts; formerly associated
1675 Broadway                                                             with the Allstate Companies
New York, NY                                                              (1966-1994), most recently as
                                                                          Chairman of The Allstate
                                                                          Corporation (March 1993-December
                                                                          1994) and Chairman and Chief
                                                                          Executive Officer of its wholly-
                                                                          owned subsidiary, Allstate
                                                                          Insurance Company (July
                                                                          1989-December 1994).


Other Directorships Held by Trustee
- ------------------------------------
                                 
Director of Weirton Steel
Corporation.






 Director of Franklin Covey (time
 management systems), BMW Bank of
 North America, Inc. (industrial
 loan corporation), United Space
 Alliance (joint venture between
 Lockheed Martin and the Boeing
 Company) and Nuskin Asia Pacific
 (multilevel marketing); member of
 the board of various civic and
 charitable organizations.




 Director of The PMI Group Inc.
 (private mortgage insurance);
 Trustee and Vice Chairman of The
 Field Museum of Natural History;
 director of various other business
 and charitable organizations.





                                       24


Morgan Stanley High Income Advantage Trust III
TRUSTEE AND OFFICER INFORMATION continued



                                                                                                                          Number of
                                                            Term of                                                    Portfolios in
                                           Position(s)    Office and                                                    Fund Complex
        Name, Age and Address of            Held with      Length of                                                    Overseen by
           Independent Trustee             Registrant     Time Served*    Principal Occupation(s) During Past 5 Years     Trustee**
- ------------------------------------    --------------  ----------------  -------------------------------------------  -------------
                                                                                                                

Dr. Manuel H. Johnson (53)                  Trustee      Trustee since     Chairman of the Audit Committee and              129
c/o Johnson Smick International, Inc.                    July 1991         Director or Trustee of the Morgan
1133 Connecticut Avenue, N.W.                                              Stanley Funds and the TCW/DW Term
Washington, D.C.                                                           Trusts; Senior Partner, Johnson
                                                                           Smick International, Inc., a
                                                                           consulting firm; Co-Chairman and a
                                                                           founder of the Group of Seven
                                                                           Council (G7C), an international
                                                                           economic commission; formerly Vice
                                                                           Chairman of the Board of Governors
                                                                           of the Federal Reserve System and
                                                                           Assistant Secretary of the U.S.
                                                                           Treasury.

Michael E. Nugent (65)                      Trustee      Trustee since     Chairman of the Insurance Committee              207
c/o Triumph Capital, L.P.                                July 1991         and Director or Trustee of the
237 Park Avenue                                                            Morgan Stanley Funds and the TCW/DW
New York, NY                                                               Term Trusts; director/trustee of
                                                                           various investment companies managed by
                                                                           Morgan Stanley Investment Management Inc.
                                                                           and Morgan Stanley Investments LP (since
                                                                           July 2001); General Partner, Triumph
                                                                           Capital, L.P., a private investment
                                                                           partnership; formerly Vice President,
                                                                           Bankers Trust Company and BT Capital
                                                                           Corporation (1984-1988).

John L. Schroeder (71)                      Trustee      Trustee since     Retired; Chairman of the                         129
c/o Mayer, Brown, Rowe & Maw                             April 1994        Derivatives Committee and Director
Counsel to the Independent Trustees                                        or Trustee of the Morgan Stanley
1675 Broadway                                                              Funds and the TCW/DW Term Trusts;
New York, NY                                                               formerly Executive Vice President
                                                                           and Chief Investment Officer of the
                                                                           Home Insurance Company (August
                                                                           1991-September 1995).




Other Directorships Held by Trustee
- ------------------------------------
                                     
Director of NVR, Inc. (home
construction); Chairman and Trustee
of the Financial Accounting
Foundation (oversight organization
of the Financial Accounting
Standards Board).








Director of various business
organizations.











Director of Citizens Communications
Company (telecommunications
company).





                                       25


Morgan Stanley High Income Advantage Trust III
TRUSTEE AND OFFICER INFORMATION continued



Interested Trustees:

                                                  Position(s)        Term of Office
        Name, Age and Address of                   Held with          and Length of
           Interested Trustee                     Registrant          Time Served*    Principal Occupation(s) During Past 5 Years
- --------------------------------------     ----------------------  ---------------   -----------------------------------------------
                                                                            
Charles A. Fiumefreddo (68)                 Chairman, Director or   Trustee since     Chairman, Director or Trustee and Chief
c/o Morgan Stanley Trust                    Trustee and Chief       July 1991         Executive Officer of the Morgan Stanley
Harborside Financial Center,                Executive Officer                         Funds and the TCW/DW Term Trusts; formerly
Plaza Two,                                                                            Chairman, Chief Executive Officer and
Jersey City, NJ                                                                       Director of the Investment Manager, the
                                                                                      Distributor and Morgan Stanley Services,
                                                                                      Executive Vice President and Director of
                                                                                      Morgan Stanley DW, Chairman and Director of
                                                                                      the Transfer Agent, and Director and/or
                                                                                      officer of various Morgan Stanley
                                                                                      subsidiaries (until June 1998).

James F. Higgins (54)                       Trustee                 Trustee since     Senior Advisor of Morgan Stanley (since
c/o Morgan Stanley Trust                                            June 2000         August 2000); Director of the Distributor
Harborside Financial Center,                                                          and Dean Witter Realty Inc.; Director or
Plaza Two,                                                                            Trustee of the Morgan Stanley Funds and the
Jersey City, NJ                                                                       TCW/DW Term Trusts (since June 2000);
                                                                                      previously President and Chief Operating
                                                                                      Officer of the Private Client Group of
                                                                                      Morgan Stanley (May 1999-August 2000),
                                                                                      President and Chief Operating Officer of
                                                                                      Individual Securities of Morgan Stanley
                                                                                      (February 1997-May 1999).

Philip J. Purcell (58)                      Trustee                 Trustee since     Director or Trustee of the Morgan Stanley
1585 Broadway                                                       April 1994        Funds and the TCW/DW Term Trusts; Chairman
New York, NY                                                                          of the Board of Directors and Chief
                                                                                      Executive Officer of Morgan Stanley and
                                                                                      Morgan Stanley DW; Director of the
                                                                                      Distributor; Chairman of the Board of
                                                                                      Directors and Chief Executive Officer of
                                                                                      Novus Credit Services Inc.; Director and/or
                                                                                      officer of various Morgan Stanley
                                                                                      subsidiaries.


   Number of
  Portfolios
    in Fund
    Complex
  Overseen by
   Trustee**   Other Directorships Held by Trustee
 ------------- ------------------------------------
              
      129       None











      129       None











      129       Director of American Airlines,
                Inc. and its parent company, AMR
                Corporation.








- ----------
 *   Each Trustee serves an indefinite term, until his or her successor is
     elected.

**   The Fund Complex includes all open and closed-end funds (including all of
     their portfolios) advised by Morgan Stanley Investment Advisors Inc. and
     any funds that have an investment advisor that is an affiliated person of
     Morgan Stanley Investment Advisors Inc. (including but not limited to,
     Morgan Stanley Investment Management Inc., Morgan Stanley Investments LP
     and Van Kampen Asset Management Inc.).


                                       26




Morgan Stanley High Income Advantage Trust III
TRUSTEE AND OFFICER INFORMATION continued




Officers:
                                                           Term of
                                       Position(s)       Office and
        Name, Age and Address of        Held with         Length of
            Executive Officer          Registrant        Time Served    Principal Occupation(s) During Past 5 Years
- ---------------------------------   --------------- -----------------   -----------------------------------------------------------
                                                               
Mitchell M. Merin (48)              President         President         President and Chief Operating Officer of Morgan
1221 Avenue of the Americas                           since May 1999    Stanley Investment Management (since December
New York, NY                                                            1998); President, Director (since April 1997)
                                                                        and Chief Executive Officer (since June 1998) of
                                                                        the Investment Manager and Morgan Stanley
                                                                        Services; Chairman, Chief Executive Officer and
                                                                        Director of the Distributor (since June 1998);
                                                                        Chairman and Chief Executive Officer (since June
                                                                        1998) and Director (since January 1998) of the
                                                                        Transfer Agent; Director of various Morgan
                                                                        Stanley subsidiaries; President of the
                                                                        Morgan Stanley Funds and TCW/DW Term Trusts
                                                                        (since May 1999); Trustee of various Van
                                                                        Kampen investment companies (since December
                                                                        1999); previously Chief Strategic Officer of
                                                                        the Investment Manager and Morgan Stanley
                                                                        Services and Executive Vice President of the
                                                                        Distributor (April 1997-June 1998), Vice
                                                                        President of the Morgan Stanley Funds (May
                                                                        1997-April 1999), and Executive Vice
                                                                        President of Morgan Stanley.

Barry Fink (47)                     Vice President,   Vice President    General Counsel (since May 2000) and Managing
1221 Avenue of the Americas         Secretary and     Secretary and     Director (since December 2000) of Morgan Stanley
New York, NY                        General Counsel   General Counsel   Investment Management; Managing Director (since
                                                      since February    December 2000), and Secretary and General
                                                      1997              Counsel(since February 1997) and Director (since
                                                                        July 1998) of the Investment Manager and
                                                                        Morgan Stanley Services; Assistant Secretary of
                                                                        Morgan Stanley DW; Vice President, Secretary and
                                                                        General Counsel of the Morgan Stanley Funds
                                                                        and TCW/DW Term Trusts (since February
                                                                        1997); Vice President and Secretary of the
                                                                        Distributor; previously, Senior Vice
                                                                        President, Assistant Secretary and Assistant
                                                                        General Counsel of the Investment Manager
                                                                        and Morgan Stanley Services.

Thomas F. Caloia (56)               Treasurer         Treasurer         First Vice President and Assistant Treasurer of the
c/o Morgan Stanley Trust                              since April       Investment Manager, the Distributor and Morgan Stanley
Harborside Financial Center,                          1989              Services; Treasurer of the Morgan Stanley Funds.
Plaza Two
Jersey City, NJ

Stephen F. Esser (37)               Vice President    Since January     Managing Director and Portfolio Manager of the Investment
One Tower Bridge                                      2001              Manager and/or its investment management affiliates for over
West Conshohocken,                                                      5 years.
Pennsylvania

Gordon W. Loery (41)                Vice President    Since January     Executive Director and Portfolio Manager of the Investment
One Tower Bridge                                      2001              Manager and/or its investment management affiliates for over
West Conshohocken,                                                      5 years.
Pennsylvania

Deanna L. Loughnane (35)            Vice President    Since January     Executive Director and Portfolio Manager of the Investment
One Tower Bridge                                      2001              Manager and/or its investment management affiliates since
West Conshohocken,                                                      1997; previously Vice President and Corporate Bond Analyst
Pennsylvania                                                            for Putnam Investments (1993-1997).



                                       27


TRUSTEES                                                  [MORGAN STANLEY LOGO]

Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
Wayne E. Hedien
James F. Higgins
Dr. Manuel H. Johnson
Michael E. Nugent
Philip J. Purcell
John L. Schroeder

OFFICERS

Charles A. Fiumefreddo
Chairman and Chief Executive Officer

Mitchell M. Merin
President

Barry Fink
Vice President, Secretary and General Counsel              [GRAPHIC OMITTED]

Stephen F. Esser
Vice President                                           Morgan Stanley
                                                         High Income
Gordon W. Loery                                          Advantage Trust III
Vice President

Deanna L. Loughnane
Vice President

Thomas F. Caloia
Treasurer

TRANSFER AGENT

Morgan Stanley Trust
Harborside Financial Center - Plaza Two
Jersey City, New Jersey 07311

INDEPENDENT AUDITORS

Deloitte & Touche LLP
Two World Financial Center
New York, New York 10281

INVESTMENT MANAGER

Morgan Stanley Investment Advisors Inc.
1221 Avenue of the Americas
New York, New York 10020

                                                       Annual Report
                                                       January 31, 2002
                                                 -------------------------------
                                        38587


















                               Semi Annual Report

                                       of

                        High Income Advantage Trust III

                              dated July 31, 2002

                            to be filed by Amendment






                   MORGAN STANLEY HIGH YIELD SECURITIES INC.
                                     PART B
                       STATEMENT OF ADDITIONAL INFORMATION


     This Statement of Additional Information relates to the shares of Morgan
Stanley High Yield Securities Inc. ("High Yield") to be issued pursuant to an
Agreement and Plan of Reorganization, dated July 25, 2002, between High Yield
and Morgan Stanley High Income Advantage Trust III ("HIAT III") in connection
with the acquisition by High Yield of substantially all of the assets, subject
to stated liabilities, of HIAT III . This Statement of Additional Information
does not constitute a prospectus. This Statement of Additional Information does
not include all information that a shareholder should consider before voting on
the proposals contained in the Proxy Statement and Prospectus, and, therefore,
should be read in conjunction with the related Proxy Statement and Prospectus,
dated           , 2002. A copy of the Proxy Statement and Prospectus may be
obtained without charge by mailing a written request to High Yield Securities
Inc., 1221 Avenue of the Americas, New York, New York 10020 or by calling
(800) 869-NEWS (TOLL FREE). Please retain this document for future reference.


      The date of this Statement of Additional Information is            , 2002.

                                       B-1


                                TABLE OF CONTENTS






                                                      PAGE
                                                     -----
                                                  
INTRODUCTION .....................................   B-3
ADDITIONAL INFORMATION ABOUT HIGH YIELD ..........   B-3
FINANCIAL STATEMENTS .............................   B-4




                                       B-2


                                  INTRODUCTION

     This Statement of Additional Information is intended to supplement the
information provided in the Proxy Statement and Prospectus dated          , 2002
(the "Proxy Statement and Prospectus"). The Proxy Statement and Prospectus has
been sent to HIAT III shareholders in connection with the solicitation of
proxies by the Board of Trustees of HIAT III to be voted at the Special Meeting
of shareholders of HIAT III to be held on December 10, 2002. This Statement of
Additional Information incorporates by reference the Statement of Additional
Information of High Yield dated             , 2002.


                 ADDITIONAL INFORMATION ABOUT HIGH YIELD


FUND HISTORY, INVESTMENT OBJECTIVES AND POLICIES

     For additional information about High Yield's history, investment
objectives and policies, see "Fund History" and "Description of the Fund and Its
Investments and Risks" in High Yield's Statement of Additional Information.



MANAGEMENT

     For additional information about the Board of Directors, officers and
management personnel of High Yield, see "Management of the Fund" and "Investment
Management and Other Services" in High Yield's Statement of Additional
Information.


INVESTMENT ADVISORY AND OTHER SERVICES

     For additional information about High Yield's investment manager, see
"Investment Management and Other Services" in High Yield's Statement of
Additional Information. For additional information about High Yield's
independent auditors, see "Investment Management and Other Services" in High
Yield's Statement of Additional Information. For additional information about
other services provided to High Yield, see "Investment Management and Other
Services" in High Yield's Statement of Additional Information.


PORTFOLIO TRANSACTIONS AND BROKERAGE

     For additional information about brokerage allocation practices, see
"Brokerage Allocation and Other Practices" in High Yield's Statement of
Additional Information.


DESCRIPTION OF FUND SHARES AND PRINCIPAL HOLDERS OF FUND SHARES

     For additional information about the voting rights and other
characteristics of the shares of High Yield, and the principal owners of the
shares of High Yield, see "Capital Stock and Other Securities" and "Control
Persons and Principal Holders of Securities" in High Yield's Statement of
Additional Information.


PURCHASE, REDEMPTION AND PRICING OF SHARES

     For additional information about the purchase and redemption of High
Yield's shares and the determination of net asset value, see "Purchase,
Redemption and Pricing of Shares" in High Yield's Statement of Additional
Information.


DIVIDENDS, DISTRIBUTIONS AND TAX STATUS

     For additional information about High Yield's policies regarding dividends
and distributions and tax matters affecting High Yield and its shareholders, see
"Taxation of the Fund and Shareholders" in High Yield's Statement of Additional
Information.


                                       B-3


DISTRIBUTION OF SHARES


     For additional information about High Yield's distributor and the
distribution agreement between High Yield and its distributor, see "Investment
Management and Other Services" and "Underwriters" in High Yield's Statement of
Additional Information.


PERFORMANCE DATA


     For additional information about High Yield's performance, see "Calculation
of Performance Data" in High Yield's Statement of Additional Information.


                              FINANCIAL STATEMENTS


     High Yield's most recent audited financial statements are set forth in High
Yield's Annual Report for the fiscal year ended August 31, 2002. High Yield's
most recent semi-annual financial statements (unaudited) are set forth in High
Yield's Semi-Annual Report for the six-month period ended February 28, 2002.
Copies of the Annual Report and Semi-Annual Report accompany, and are
incorporated by reference in, the Proxy Statement and Prospectus. HIAT III's
most recent audited financial statements are set forth in HIAT III's Annual
Report for the fiscal year ended January 31, 2002. HIAT III's most recent
semi-annual financial statements (unaudited) are set forth in HIAT III's
Semi-Annual Report for the six-month period ended July 31, 2002. Copies of the
Annual Report and Semi-Annual Report accompany, and are incorporated by
reference in, the Proxy Statement and Prospectus.


                                       B-4










                     Statement of Additional Information of

                           High Yield Securities Inc.

                         Dated _________________, 2002

                            To be Filed by Amendment

















                   MORGAN STANLEY HIGH YIELD SECURITIES INC.

                                    PART C
                               OTHER INFORMATION

ITEM 15. INDEMNIFICATION

     The response to this item is incorporated herein by reference to Exhibits
1 and 2 under Item 16 below and by reference to Item 23 of Post-Effective
Amendment No. 27 to the Registrant's Registration Statement on Form N-1A, dated
October 30, 2001, which was filed electronically pursuant to Regulation S-T on
October 30, 2001 as an amendment to Registrant's Registration Statement on Form
N-1A (File Nos. 811-2932 and 2-64782).


ITEM 16. EXHIBITS

(1)  Articles of Incorporation dated June 12, 1979 (incorporated herein by
     reference to Exhibit 1(a) of Post-Effective Amendment No. 19 to the
     Registration Statement on Form N-1A, filed on October 25, 1995); Articles
     of Amendments dated March 18, 1983, December 16, 1985 and January 19, 1989
     (incorporated herein by reference to Exhibits 1(b), 1(c) and 1(d),
     respectively, of Post-Effective Amendment No. 19 to the Registration
     Statement on Form N-1A, filed on October 25, 1995; Articles of Amendments,
     dated May 23, 1997 and July 28, 1997 and Articles Supplementary dated July
     28, 1997 (incorporated herein by reference to Exhibits 1(a), 1(c) and 1(b),
     respectively, of Post-Effective Amendment No. 21 to the Registration
     Statement on Form N-1A, filed on July 3, 1997; Articles of Amendment, dated
     June 22, 1998 (incorporated herein by reference to Exhibit 1 of
     Post-Effective Amendment No. 23 to the Registration Statement on Form N-1A,
     filed on October 29, 1998; and Articles of Amendment dated June 18, 2001
     (incorporated herein by reference to Exhibit 1(d) of Post-Effective
     Amendment No. 27 to the Registration Statement on Form N-1A, filed on
     October 30, 2001).

(2)  Amended and Restated By-Laws of Registrant dated as of May 1, 1999
     (incorporated herein by reference to Exhibit 2 of Post-Effective Amendment
     No. 24 to the Registration Statement on Form N-1A, filed on August 27,
     1999).

(3)  Not Applicable.

(4)  Copy of Agreement and Plan of Reorganization (filed herewith as Exhibit A
     to the Proxy Statement and Prospectus).

(5)  Not Applicable.

(6)  Amended Investment Management Agreement between the Registrant and Morgan
     Stanley Investment Advisors Inc. dated May 31, 1997, and amended as of
     April 30, 1998, (incorporated herein by reference to Exhibit 5 of
     Post-Effective Amendment No. 23 to the Registration Statement on Form N-1A
     filed on October 29, 1998).

(7)  (a)  Amended Distribution Agreement between Registrant and Morgan Stanley
          Distributors Inc. (incorporated herein by reference to Exhibit 6 of
          Post-Effective Amendment No. 23 to the Registration Statement on Form
          N-1A, filed on October 29, 1998).

     (b)  Form of Selected Dealer Agreement between Morgan Stanley Distributors
          Inc. and Morgan Stanley DW Inc. (incorporated herein by reference to
          Exhibit 6(b) of Post-Effective Amendment No. 17 to the Registration
          Statement on Form N-1A, filed on October 23, 1993).

     (c)  Omnibus Selected Dealer Agreement between Morgan Stanley Distributors
          Inc. and National Financial Services Corporation, dated October 17,
          1998 (incorporated by reference to Exhibit 5(c) of Post-Effective
          Amendment No. 24 to the Registration Statement) on Form N-1A, filed on
          August 27, 1999).

(8)  Not Applicable.

                                      C-1


(9) (a) Custody Agreement between the Registrant and The Bank of New York dated
        September 20, 1991 (incorporated herein by reference to Exhibit 8 of
        Post-Effective Amendment No. 19 to the Registration Statement on Form
        N-1A, filed on October 25, 1995); Amendment dated April 17, 1996 to the
        Custody Agreement between the Registrant and The Bank of New York
        (incorporated to Exhibit 8 of Post-Effective Amendment No. 20 to the
        Registration Statement on Form N-1A, filed on October 24, 1996;
        Amendment dated June 15, 2001 to the Custody Agreement between the
        Registrant and The Bank of New York (incorporated herein by reference
        to Exhibit 7(c) of Post-Effective Amendment No. 27 to the Registration
        Statement on Form N-1A, filed on October 30, 2001).

     (b)  Foreign Custody Manager Agreement between the Registrant and The Bank
          of New York dated June 15, 2001 (incorporated herein by reference to
          Exhibit 7(d) to Post-Effective Amendment No. 27 to the Registration
          Statement on Form N-1A filed on October 30, 2001).

     (c)  Amended and Restated Transfer Agency and Services Agreement dated
          September 1, 2000 between the Registrant and Morgan Stanley Trust
          (incorporated herein by reference to Exhibit 8(a) of Post-Effective
          Amendment No. 26 to the Registration Statement on Form N-1A filed on
          October 30, 2000).

(10) (a)  Amended and Restated Plan of Distribution pursuant to Rule 12b-1
          (incorporated herein by reference to Exhibit 15 of Post-Effective
          Amendment No. 21 to the Registration Statement on Form N-1A, filed on
          July 3, 1997).

(10) (b)  Morgan Stanley Funds Multiple Class Plan pursuant to Rule 18f-3 dated
          March 12, 2001 (incorporated herein by reference to Exhibit 14 of
          Post-Effective Amendment No. 27 to the Registration Statement on Form
          N-1A, filed on October 30, 2001.

(11) (a)  Opinion and consent of Mayer, Brown, Rowe & Maw.*

     (b)  Opinion and consent of Piper Rudnick LLP.*

(12) Opinion and consent of Mayer, Brown, Rowe & Maw regarding tax matters.*

(13) Form of Services Agreement between Morgan Stanley Investment Advisors Inc.
     and Morgan Stanley Services Company Inc. (incorporated herein by reference
     to Exhibit 9 of Post-Effective Amendment No. 23 to the Registration
     Statement on Form N-1A, filed on October 29, 1998).

(14) Consent of Independent Auditors, filed herein.

(15) Not Applicable.

(16) Powers of Attorney, filed herein.

(17) (a) Registrant's Rule 24f-2 Notice pursuant to Rule 24f-2 under the
         Investment Company Act of 1940, for its fiscal year ended August 31,
         2001 (incorporated herein by reference to Form 24f-2 filed with the
         Securities and Exchange Commission on November 6, 2001).

     (b) Form of Proxy.

     (c) Voting Information Card.


ITEM 17. UNDERTAKINGS

     1. The undersigned Registrant agrees that prior to any public reoffering
of the securities registered through the use of the prospectus which is a part
of this registration statement on Form N-14 by any person or


* To be filed by amendment.

                                      C-2


party who is deemed to be an underwriter within the meaning of Rule 145(c) of
the Securities Act of 1933, the reoffering prospectus will contain the
information called for by the applicable registration form for reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other items of the applicable form.

     2. The undersigned Registrant agrees that every prospectus that is filed
under paragraph (1) above will be filed as a part of an amendment to this
registration statement on Form N-14 and will not be used until the amendment is
effective, and that, in determining any liability under the Securities Act of
1933, each post-effective amendment shall be deemed to be a new registration
statement for the securities offered therein, and the offering of the
securities at that time shall be deemed to be the initial bona fide offering of
them.


                                      C-3


                                  SIGNATURES

     As required by the Securities Act of 1933, this registration statement has
been signed on behalf of the registrant, in the City of New York and State of
New York, on the 25th day of July, 2002.


                             MORGAN STANLEY HIGH YIELD SECURITIES INC.


                             By: /s/ Barry Fink
                                 ...........................................
                                Barry Fink
                                Vice President and Secretary


     As required by the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities and on the dates
indicated.







           SIGNATURE                              TITLE                        DATE
- ------------------------------   --------------------------------------   --------------
                                                                    
1. Principal Executive Officer
  /s/ Charles A. Fiumefreddo     Chief Executive Officer, Director and
  ............................
                                 Chairman                                 July 25, 2002
2. Principal Financial Officer
  /s/ Thomas F. Caloia           Treasurer and Principal
  ............................
                                 Accounting Officer                       July 25, 2002
3. Majority of Directors
  /s/ Michael Bozic              Director                                 July 25, 2002
  ............................
  /s/ Edwin J. Garn              Director                                 July 25, 2002
  ............................
  /s/ Wayne E. Hedien            Director                                 July 25, 2002
  ............................
  /s/ James F. Higgins           Director                                 July 25, 2002
  ............................
  /s/ Manuel H. Johnson          Director                                 July 25, 2002
  ............................
  /s/ Michael E. Nugent          Director                                 July 25, 2002
  ............................
  /s/ John L. Schroeder          Director                                 July 25, 2002
  ............................
  /s/ Philip J. Purcell          Director                                 July 25, 2002
  ............................





                                      C-4


                   MORGAN STANLEY HIGH YIELD SECURITIES INC.

                                 EXHIBIT INDEX



14    Consent of Independent Auditors

16    Powers of Attorney

17    Proxy Card