Schedule 14A Information required in proxy statement.
                           Schedule 14A Information
          Proxy Statement Pursuant to Section 14(a) of the Securities
                     Exchange Act of 1934 (Amendment No. )


Filed by the Registrant [ X ] 
Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ X ]          Preliminary Proxy Statement
[   ]          Preliminary Additional Materials
[   ]          Confidential, for Use of the Commission Only (as permitted by 
                  Rule 14a-6(e)(2))
[   ]          Definitive Proxy Statement
[   ]          Definitive Additional Materials
[   ]          Soliciting Material Pursuant to Section 240.149-11(c) or
                Section 240.14a-12


         Municipal Income Trust II
         Municipal Income Opportunities Trust II
         High Income Advantage Trust III
         InterCapital Insured Municipal Securities
         InterCapital Insured California Municipal Securities
                          (Name of Registrants as specified in their charter)

 ....Lou Anne McInnis. . . . . . . . . . . . . . . . . . . . . . .
          (Name of Person(s) Filing Proxy Statement)

               Payment of Filing Fee (check the appropriate box):

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2) Aggregate number of securities to which transaction applies:

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         how it was determined.




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				PRELIMINARY COPY
         TO BE FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ONLY

                       HIGH INCOME ADVANTAGE TRUST III 
                          MUNICIPAL INCOME TRUST II 
                   MUNICIPAL INCOME OPPORTUNITIES TRUST II 
                  INTERCAPITAL INSURED MUNICIPAL SECURITIES 
             INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES 

                  NOTICE OF ANNUAL MEETINGS OF SHAREHOLDERS 
                           TO BE HELD JUNE 23, 1998 

   Annual Meetings of Shareholders ("Meeting(s)") of HIGH INCOME ADVANTAGE 
TRUST III, MUNICIPAL INCOME TRUST II, MUNICIPAL INCOME OPPORTUNITIES TRUST 
II, INTERCAPITAL INSURED MUNICIPAL SECURITIES and INTERCAPITAL INSURED 
CALIFORNIA MUNICIPAL SECURITIES (individually, a "Fund" and, collectively, 
the "Funds"), unincorporated business trusts organized under the laws of the 
Commonwealth of Massachusetts, will be held jointly in the Career Development 
Room, Sixty-First Floor, Two World Trade Center, New York, New York 10048, on 
June 23, 1998 at 9:00 A.M., New York City time, for the following purposes: 

     1. For HIGH INCOME ADVANTAGE TRUST III and MUNICIPAL INCOME OPPORTUNITIES 
    TRUST II, to elect three (3) Trustees to serve until the year 2001 Annual 
    Meeting of each Fund; and for MUNICIPAL INCOME TRUST II, INTERCAPITAL 
    INSURED MUNICIPAL SECURITIES AND INTERCAPITAL INSURED CALIFORNIA MUNICIPAL 
    SECURITIES, to elect four (4) Trustees to serve until the year 2001 Annual 
    Meeting, or in each case, until their successors shall have been elected 
    and qualified. 

     2. To ratify or reject the selection of Price Waterhouse LLP as each 
    Fund's independent accountants for fiscal years ending January 31, 1999 
    for HIGH INCOME ADVANTAGE TRUST III; for fiscal year ending December 31, 
    1998 for MUNICIPAL INCOME TRUST II; for fiscal year ending February 28, 
    1999 for MUNICIPAL INCOME OPPORTUNITIES TRUST II; and for fiscal years 
    ending October 31, 1998 for INTERCAPITAL INSURED MUNICIPAL SECURITIES and 
    INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES; and 

     3. For HIGH INCOME ADVANTAGE TRUST III, to eliminate the Fund's 
    fundamental policy regarding investments in restricted securities; 

     4. To transact such other business as may properly come before the 
    Meetings or any adjournments thereof. 

   Shareholders of record of each Fund as of the close of business on April 
30, 1998 are entitled to notice of and to vote at the Meeting. If you cannot 
be present in person, your management would greatly appreciate your filling 
in, signing and returning the enclosed proxy promptly in the envelope 
provided for that purpose. 

   In the event that the necessary quorum to transact business or the vote 
required to approve or reject any proposal is not obtained at the Meeting, 
the persons named as proxies may propose one or more adjournments of the 
Meeting for a total of not more than 60 days in the aggregate to permit 
further solicitation of proxies. Any such adjournment will require the 
affirmative vote of the holders of a majority of the applicable Fund's shares 
present in person or by proxy at the Meeting. The persons named as proxies 
will vote in favor of such adjournment those proxies which have been received 
by the date of the Meeting. 

                                                       BARRY FINK 
                                                        Secretary 
May   , 1998 
New York, New York 

                                  IMPORTANT 
  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 MAY BE REPRESENTED AT THE MEETING. 
THE ENCLOSED ENVELOPE REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. 

                       HIGH INCOME ADVANTAGE TRUST III 
                          MUNICIPAL INCOME TRUST II 
                   MUNICIPAL INCOME OPPORTUNITIES TRUST II 
                  INTERCAPITAL INSURED MUNICIPAL SECURITIES 
             INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES 
               TWO WORLD TRADE CENTER, NEW YORK, NEW YORK 10048 


                            JOINT PROXY STATEMENT 


                       ANNUAL MEETINGS OF SHAREHOLDERS 
                                JUNE 23, 1998 

   This statement is furnished in connection with the solicitation of proxies 
by the Boards of Trustees (the "Board(s)") of HIGH INCOME ADVANTAGE TRUST III 
("HIAT III"), MUNICIPAL INCOME TRUST II ("MIT II"), MUNICIPAL INCOME 
OPPORTUNITIES TRUST II ("MIOT II"), INTERCAPITAL INSURED MUNICIPAL SECURITIES 
("INSURED MUNI") and INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES 
("INSURED CAL MUNI") (individually, a "Fund" and, collectively, the "Funds") 
for use at the Annual Meetings of Shareholders of the Funds to be held 
jointly on June 23, 1998 (the "Meeting(s)"), and at any adjournments thereof. 
The first mailing of this Proxy Statement is expected to be made on or about 
May   , 1998. 

   If the enclosed form of proxy is properly executed and returned in time to 
be voted at the Meetings, the proxies named therein will vote the shares 
("shares") represented by the proxy in accordance with the instructions 
marked thereon. Unmarked proxies will be voted for each of the nominees for 
election as Trustee and in favor of Proposals 2 and 3 set forth in the 
attached Notice of Annual Meetings of Shareholders. A proxy may be revoked at 
any time prior to its exercise by any of the following: written notice of 
revocation to the Secretary of the Funds, execution and delivery of a later 
dated proxy to the Secretary of the Funds (if returned and received in time 
to be voted), or attendance and voting at the Annual Meetings of 
Shareholders. Attendance at the Meetings will not in and of itself revoke a 
proxy. 

   Shareholders of record ("Shareholders") of each Fund as of the close of 
business on April 30, 1998, the record date for the determination of 
Shareholders entitled to notice of and to vote at the Meetings, are entitled 
to one vote for each share held and a fractional vote for a fractional share. 
On April 30, 1998, there were        shares of beneficial interest of HIAT 
III,         shares of beneficial interest of MIT II,        shares of 
beneficial interest of MIOT II,         shares of beneficial interest of 
INSURED MUNI and        shares of beneficial interest of INSURED CAL MUNI 
outstanding, all with $0.01 par value. No person was known to own as much as 
5% of the outstanding shares of any of the Funds on that date. The percentage 
ownership of shares of each Fund changes from time to time depending on 
purchases and sales by Shareholders and the total number of shares 
outstanding. 


                                       2

   The cost of soliciting proxies for these Annual Meetings of Shareholders, 
consisting principally of printing and mailing expenses will be borne by each 
respective Fund. The solicitation of proxies will be by mail, which may be 
supplemented by solicitation by mail, telephone or otherwise through 
Trustees, officers of the Funds, or officers and regular employees of Dean 
Witter InterCapital Inc. ("InterCapital"), Morgan Stanley Dean Witter Trust 
FSB ("MSDW Trust"), Dean Witter Services Company Inc. ("DWSC") and/or Dean 
Witter Reynolds Inc. ("DWR"), without special compensation therefor. In 
addition, InterCapital may employ William F. Doring & Co. as proxy solicitor, 
the cost of which is not expected to exceed $3,000 for each Fund and will be 
borne by each respective Fund. 

   William F. Doring & Co. and MSDW Trust 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 any Proposal other than to refer to the 
recommendations of the Board. The Funds have been advised by counsel that 
these procedures are consistent with the requirements of applicable law. 
Shareholders voting by telephone 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 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 
may vote by mail using the enclosed proxy card. With respect to the 
solicitation of a telephonic vote by William F. Doring & Co., additional 
expenses would include $7.00 per telephone vote transacted, $3.00 per 
outbound telephone contact and costs relating to obtaining Shareholders' 
telephone numbers which would be borne by each respective Fund. 

                    (1) ELECTION OF TRUSTEES FOR EACH FUND 

   The number of Trustees of each Fund has been fixed by the Trustees, 
pursuant to each Fund's Declaration of Trust, at nine. There are presently 
nine Trustees for each Fund. At the Meetings, the following nominees are to 
be elected to each Fund's Board of Trustees to serve for the following terms, 
in accordance with each Fund's Declaration of Trust, as set forth below: 



 HIAT III, MIOT II--                    MIT II, INSURED MUNI, INSURED CAL MUNI -- 
  UNTIL THE YEAR 2001 ANNUAL MEETING         UNTIL THE YEAR 2001 ANNUAL MEETING 
- --------------------------------------  ------------------------------------------- 
                                     
Wayne E. Hedien                         Edwin J. Garn 
Manuel H. Johnson                       John R. Haire 
John L. Schroeder                       Michael E. Nugent 
                                        Philip J. Purcell 


   Seven of the current nine Trustees (Michael Bozic, Edwin J. Garn, John R. 
Haire, Wayne E. Hedien, Manuel H. Johnson, Michael E. Nugent and John L. 
Schroeder) are "Independent Trustees," that is, Trustees who are not 
"interested persons" of the Funds, as that term is defined in the Investment 
Company Act of 1940, as amended (the "1940 Act"). The other two current 
Trustees, Charles A. Fiumefreddo and Philip J. Purcell are "interested 
persons" (as that term is defined in the 1940 Act) of the Funds and 
InterCapital and thus, are not Independent Trustees. The nominees for 
election as Trustee have been proposed by the Independent Trustees now 
serving. All of the members of the Boards currently serving have been elected 
previously by the Shareholders of the Funds. 

   The nominees of the Board of Trustees for election as Trustee are listed 
below. It is the intention of the persons named in the enclosed form of 
proxy, unless instructed by proxy to withhold authority to vote for the 
nominees, to vote all validly executed proxies for the election of these 
nominees: for HIAT III and MIOT 



                                       3

II--Wayne E. Hedien, Manuel H. Johnson and John L. Schroeder; for MIT II, 
INSURED MUNI and INSURED CAL MUNI--Edwin J. Garn, John R. Haire, Philip J. 
Purcell and Michael E. Nugent. Should the nominees become unable or unwilling 
to accept nomination or election, the persons named in the proxy will 
exercise their voting power in favor of such person as the Boards may 
recommend or, in the case of an Independent Trustee nominee, as the 
Independent Trustees of each Fund may recommend. All of the nominees have 
consented to being named in this Proxy Statement and to serve if elected. The 
Funds know of no reason why any of the said nominees would be unable or 
unwilling to accept nomination or election. With respect to each Fund, the 
election of each Trustee requires the approval of a majority of the shares of 
the Fund represented and entitled to vote at the Meeting. 

   Pursuant to the provisions of the Declaration of Trust of each Fund, in 
certain cases as amended, the Trustees are divided into three separate 
classes, each class having a term of three years. The term of office of one 
of each of the three classes will expire each year. 

   The Boards of each Fund previously determined that any nominee for 
election as Trustee for each Fund will stand for election as Trustee and 
serve as Trustee in one of the three classes of Trustees as follows: Class 
I--Messrs. Bozic and Fiumefreddo; Class II--Messrs. Hedien, Johnson and 
Schroeder; and Class III--Messrs. Garn, Haire, Nugent and Purcell. Any 
nominee will, if elected, serve a term of up to approximately three years 
running for the period assigned to that class and terminating at the date of 
the Annual Meeting of Shareholders so designated by the Boards, or any 
adjournments thereof. In accordance with the above, the Trustees in Class II 
for HIAT III and MIOT II and the Trustees in Class III for MIT II, INSURED 
MUNI and INSURED CAL MUNI are standing for election and will, if elected, 
serve until the year 2001 Annual Meetings for each Fund as set forth above, 
or until their successors shall have been elected and qualified. As a 
consequence of this method of election, the replacement of a majority of each 
of the Boards could be delayed for up to two years. 

   The following information regarding the nominees for election as Trustee, 
and each of the other members of the Boards, includes his principal 
occupations and employment for at least the last five years, his age, shares 
of each Fund owned, if any, as of April 30, 1998 (shown in parentheses), 
positions with the Funds, and directorships or trusteeships in companies 
which file periodic reports with the Securities and Exchange Commission, 
including the 86 investment companies, including the Funds, for which 
InterCapital serves as investment manager or investment adviser (referred to 
herein as the "Dean Witter Funds") and the 11 investment companies for which 
InterCapital's wholly-owned subsidiary, DWSC, serves as manager and TCW Funds 
Management, Inc. serves as investment adviser (referred to herein as the 
"TCW/DW Funds"). 

   The respective nominees for Trustee to be elected at the Meetings of HIAT 
III and MIOT II as set forth above are: 

   WAYNE E. HEDIEN, Trustee of each Fund since September, 1997*; age 64; 
Retired; Director or Trustee of the Dean Witter Funds; Director of The PMI 
Group, Inc. (private mortgage insurance); Trustee and Vice Chairman of The 
Field Museum of Natural History; formerly associated with the Allstate 
Companies (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); director of various other business and charitable organizations. 

   MANUEL H. JOHNSON, Trustee of each Fund since July, 1991*; age 49; 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; Director or Trustee of the Dean Witter Funds; Trustee of the 
TCW/DW Funds; Director of NASDAQ (since June, 1995); Director of Greenwich 
Capital Markets, Inc. (broker-dealer) and NRV, Inc. (home construction); 
Chairman and Trustee of the Financial Accounting Foundation (oversight 
organization for the Financial Accounting Standards Board); formerly Vice 
Chairman of the Board of Governors of the Federal Reserve System (1986-1990) 
and Assistant Secretary of the U.S. Treasury (1982-1986). 


                                       4

   JOHN L. SCHROEDER, Trustee/Director of each Fund since April, 1994*; age 
67; Retired; Director or Trustee of the Dean Witter Funds; Trustee of the 
TCW/DW Funds; Director of Citizens Utilities Company; formerly Executive Vice 
President and Chief Investment Officer of the Home Insurance Company (August, 
1991-September, 1995). 

   The nominees for Trustee to be elected at the Meetings of MIT II, INSURED 
MUNI and INSURED CAL MUNI as set forth above are: 

   EDWIN JACOB (JAKE) GARN, Trustee of each Fund since January, 1993*; age 
65; Director or Trustee of the Dean Witter Funds; formerly United States 
Senator (R-Utah) (1974-1992) and 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 (since January, 1993); Director of Franklin Covey (time 
management systems) and John Alden Financial Corp. (health insurance); United 
Space Alliance (joint venture between Lockheed Martin and Boeing Company) and 
Nuskin Asia Pacific (multilevel marketing); Member of the board of various 
civic and charitable organizations. 

<F1>
   JOHN R. HAIRE**, age 73; Chairman of the Audit Committee and Chairman of 
the Committee of the Independent Directors or Trustees and Director or 
Trustee of the Dean Witter Funds; Chairman of the Audit Committee and 
Chairman of the Committee of the Independent Trustees and Trustee of the 
TCW/DW Funds; formerly President, Council for Aid to Education (1978-1989) 
and Chairman and Chief Executive Officer of Anchor Corporation, an investment 
adviser (1964-1978). 

   MICHAEL E. NUGENT, Trustee of each Fund since July, 1991*; age 61; General 
Partner, Triumph Capital, L.P., a private investment partnership; Director or 
Trustee of the Dean Witter Funds; Trustee of the TCW/DW Funds; formerly Vice 
President, Bankers Trust Company and BT Capital Corporation (1984-1988); 
director of various business organizations. 

   PHILIP J. PURCELL, Trustee of each Fund since April, 1994*; age 54; 
Chairman of the Board of Directors and Chief Executive Officer of Morgan 
Stanley Dean Witter & Co. ("MSDW"), DWR and Novus Credit Services Inc.; 
Director of InterCapital, DWSC and Distributors; Director or Trustee of the 
Dean Witter Funds; Director and/or officer of various MSDW subsidiaries. 

   The Trustees who are not standing for re-election at any of the Meetings 
are: 

   MICHAEL BOZIC, Trustee of each Fund since April, 1994*; age 57; Chairman 
and Chief Executive Officer of Levitz Furniture Corporation (since November, 
1995); Director or Trustee of the Dean Witter Funds; formerly 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 and Co.; Director of Eaglemark Financial Services, Inc. and Weirton 
Steel Corporation. 

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

*      This is the date the Trustee began serving the Dean Witter Funds 
       complex. 

**     Trustee of HIAT III since December, 1988; of MIT II since April, 1988; 
       of MIOT II since April, 1989; and of INSURED MUNI and INSURED CAL MUNI 
       since December, 1993. 


                                       5

   CHARLES A. FIUMEFREDDO, Trustee of each Fund since July, 1991*; age 64; 
Chairman, Chief Executive Officer and Director of InterCapital, DWSC and Dean 
Witter Distributors Inc. ("Distributors")*** ; Executive Vice President and 
Director of DWR; Chairman, Director or Trustee, President and Chief Executive 
Officer of the Dean Witter Funds; Chairman, Chief Executive Officer and 
Trustee of the TCW/DW Funds; Chairman and Director of MSDW Trust; Director 
and/or officer of various MSDW subsidiaries; formerly Executive Vice 
President and Director of Dean Witter, Discover & Co. (until February, 1993). 

   The executive officers of each Fund are: Barry Fink, Vice President, 
Secretary and General Counsel; Mitchell M. Merin, Vice President; Robert M. 
Scanlan, Vice President; Robert S. Giambrone, Vice President; Joseph J. 
McAlinden, Vice President and Thomas F. Caloia, Treasurer; and with respect 
to the individual Funds, the other executive officers are as follows: HIAT 
III--Peter M. Avelar, Vice President; Jonathan R. Page, Vice President; James 
F. Willison, Vice President; MIT II, MIOT II, INSURED MUNI and INSURED CAL 
MUNI--James F. Willison, Vice President; Peter M. Avelar, Vice President; 
Jonathan R. Page, Vice President; Joseph R. Arcieri, Vice President; Gerard 
J. Lian, Vice President; Katherine H. Stromberg, Vice President. In addition, 
Frank Bruttomesso, Marilyn K. Cranney, Todd Lebo, LouAnne D. McInnis, Carsten 
Otto and Ruth Rossi serve as Assistant Secretaries of each Fund. 

   Mr. Fink is 43 years old and is currently Senior Vice President (since 
March, 1997), Secretary and General Counsel (since February 1997) of 
InterCapital and DWSC and (since August 1996) Assistant Secretary of DWR; he 
is also Senior Vice President (since March, 1997), Assistant Secretary and 
Assistant General Counsel of Distributors (since February 1997). He was 
previously First Vice President, Assistant Secretary and Assistant General 
Counsel of InterCapital and DWSC. Mr. Merin is 44 years old and is currently 
President and Chief Strategic Officer of InterCapital and DWSC, Executive 
Vice President of Distributors and MSDW Trust and Director of MSDW Trust, 
Executive Vice President, Chief Administrative Officer and Director of DWR, 
Director of SPS Transaction Services, Inc. and various other MSDW 
subsidiaries. Mr. Scanlan is 61 years old and is currently President and 
Chief Operating Officer of InterCapital (since March, 1993) and DWSC; he is 
also Executive Vice President of Distributors and Executive Vice President 
and Director of MSDW Trust. He was previously Executive Vice President of 
InterCapital (July, 1992-March, 1993) and prior thereto was Chairman of 
Harborview Group Inc. Mr. Giambrone is 43 years old and is currently Senior 
Vice President of InterCapital, DWSC, Distributors and MSDW Trust (since 
August, 1995) and Director of DWT (since April, 1996). He was formerly a 
partner of KPMG Peat Marwick, LLP. Mr. McAlinden is 55 years old and is 
currently Executive Vice President of InterCapital (since April, 1996) and 
Chief Investment Officer of InterCapital and Director of MSDW Trust (since 
April, 1996). He was previously Senior Vice President of InterCapital (June, 
1995-April, 1996). He was formerly a Managing Director at Dillon Read. Mr. 
Caloia is 52 years old and is currently First Vice President and Assistant 
Treasurer of InterCapital and DWSC. Mr. Avelar is 39 years old and is 
currently Senior Vice President of InterCapital. Mr. Page is 51 years old and 
is currently Senior Vice President of InterCapital. Mr. Willison is 54 years 
old and is currently Senior Vice President of InterCapital. Mr. Arcieri is 49 
years old and is currently Vice President of InterCapital. Mr. Lian is 43 
years old and is currently Vice President of InterCapital. Ms. Stromberg is 
49 years old and is currently Vice President of InterCapital. Other than Mr. 
Giambrone and Mr. McAlinden, each of the above officers has been an employee 
of InterCapital or DWR (formerly the corporate parent of InterCapital) for 
over five years. 

THE BOARD OF TRUSTEES, THE INDEPENDENT TRUSTEES, AND THE COMMITTEES 

   The Board currently consists of nine (9) Trustees. These same individuals 
also serve as directors or trustees for all of the Dean Witter Funds, and are 
referred to in this section as Trustees. As of the date of this Proxy 
Statement, there are a total of 86 Dean Witter Funds, comprised of 128 
portfolios. As of April 30, 1998, the Dean Witter Funds had total net assets 
of approximately $    billion and more than six million shareholders. 

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

***     Effective June 1, 1998, Mr. Fiumefreddo will retire from 
        InterCapital, DWSC, Distributors, DWR and MSDW Trust. 


                                       6


   Seven Trustees (77% of the total number) have no affiliation or business 
connection with InterCapital or any of its affiliated persons and do not own 
stock or other securities issued by InterCapital's parent, MSDW. There are 
the "disinterested" or "independent" Trustees. The other two Trustees (the 
"Management Trustees") are affiliated with InterCapital. Four of the seven 
Independent Trustees are also Independent Trustees of the TCW/DW Funds. 

   Law and regulation establish both general guidelines and specific duties 
for the Independent Trustees. The Dean Witter Funds seek as Independent 
Trustees individuals of distinction and experience in business and finance, 
government service or academia; these are people whose advice and counsel are 
in demand by others and for whom there is often competition. To accept a 
position on the Funds' Boards, such individuals may reject other attractive 
assignments because the Funds make substantial demands on their time. Indeed, 
by serving on the Funds' Boards, certain Trustees who would otherwise be 
qualified and in demand to serve on bank boards would be prohibited by law 
from doing so. 

   All of the Independent Trustees serve as members of the Audit Committee. 
Three of them also serve as members of the Derivatives Committee. The 
Committees hold some meetings at InterCapital's offices and some outside 
InterCapital. Management Trustees or officers do not attend these meetings 
unless they are invited for purposes of furnishing information or making a 
report. The Funds do not have any nominating or compensation committees. 

   The Audit Committee is charged with recommending to the full Board the 
engagement or discharge of the Funds' independent accountants; directing 
investigations into matters within the scope of the independent accountants' 
duties, including the power to retain outside specialists; reviewing with the 
independent accountants the audit plan and results of the auditing 
engagement; approving professional services provided by the independent 
accountants and other accounting firms prior to the performance of such 
services; reviewing the independence of the independent accountants; 
considering the range of audit and non-audit fees and reviewing the adequacy 
of the Fund's system of internal controls. 

   Finally, the Board of each Fund has formed a Derivatives Committee to 
approve parameters for and monitor the activities of the Fund with respect to 
derivative investments, if any, made by the Fund. 

   The following chart sets forth the number of meetings of the Board, the 
Audit Committee, the Committee of the Independent Trustees and the 
Derivatives Committee of each Fund during its most recent fiscal year. No 
Trustee attended fewer than 75% of the meetings of the Board, the Audit 
Committee, the Committee of the Independent Trustees or the Derivatives 
Committee held while he served in such positions. 

     NUMBER OF BOARD AND COMMITTEE MEETINGS HELD DURING LAST FISCAL YEAR 



                                                                               COMMITTEE 
                                                                                 OF THE 
                                                                   BOARD OF   INDEPENDENT      AUDIT     DERIVATIVES 
                                                        FISCAL     TRUSTEES     TRUSTEES     COMMITTEE    COMMITTEE 
NAME OF FUND                                           YEAR-END    MEETINGS     MEETINGS     MEETINGS      MEETINGS 
- ----------------------------------------------------  ---------- ----------  ------------- -----------  ------------- 
                                                                                         
High Income Advantage Trust III......................   1/31/98       6            10            2            2 
Municipal Income Trust II............................  12/31/97       5            10            2            2 
Municipal Income Opportunities Trust II..............   2/28/98       4            10            2            2 
InterCapital Insured Municipal Securities............  10/31/97       5             9            2            2 
InterCapital Insured California Municipal 
 Securities..........................................  10/31/97       5             9            2            2 



                                       7

ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL DEAN 
WITTER FUNDS 

   The Independent Trustees and the Funds' management believe that having the 
same Independent Trustees for each of the Dean Witter Funds avoids the 
duplication of effort that would arise from having different groups of 
individuals serving as Independent Trustees for each of the Funds or even of 
sub-groups of Funds. They believe that having the same individuals serve as 
Independent Trustees of all the Funds tends to increase their knowledge and 
expertise regarding matters which affect the Fund complex generally and 
enhances their ability to negotiate on behalf of each Fund with the Fund's 
service providers. This arrangement also precludes the possibility of 
separate groups of Independent Trustees arriving at conflicting decisions 
regarding operations and management of the Funds and avoids the cost and 
confusion that would likely ensue. Finally, having the same Independent 
Trustees serve on all Fund Boards enhances the ability of each Fund to 
obtain, at modest cost to each separate Fund, the services of Independent 
Trustees of the caliber, experience and business acumen of the individuals 
who serve as Independent Trustees of the Dean Witter Funds. 

SHARE OWNERSHIP BY TRUSTEES 

   The Trustees have adopted a policy pursuant to which each Trustee and/or 
his or her spouse is required to invest at least $25,000 in any of the Funds 
in the Dean Witter Funds complex (and, if applicable, in the TCW/DW Funds 
complex) on whose boards the Trustee serves. In addition, the policy 
contemplates that the Trustees will, over time, increase their aggregate 
investment in the Funds above the $25,000 minimum requirement. The Trustees 
may allocate their investments among specific Funds in any manner they 
determine is appropriate based on their individual investment objectives. As 
of the date of this Proxy Statement, each Trustee is in compliance with the 
policy. Any future Trustee will be given a one year period following his or 
her election within which to comply with the foregoing. As of March 31, 1998, 
the total value of the investments by the Trustees and/or their spouses in 
shares of the Dean Witter Funds (and, if applicable, the TCW/DW Funds) was 
approximately $    million. 

   As of the record date for these meetings, the aggregate number of shares 
of each Fund owned by the respective Fund's officers and Trustees as a group 
was less than 1 percent of each Fund's outstanding shares. 

COMPENSATION OF INDEPENDENT TRUSTEES 

   Each Fund pays each Independent Trustee an annual fee of $800 plus a per 
meeting fee of $50 for meetings of the Board of Trustees or committees of the 
Board attended by the Trustee (each Fund pays the Chairman of the Audit 
Committee an annual fee of $750 and pays the Chairman of the Committee of the 
Independent Trustees an additional annual fee of $1,200). If a Board meeting 
and a Committee meeting, or more than one Committee meeting, take place on a 
single day, the Trustees are paid a single meeting fee by each Fund. Each 
Fund also reimburses such Trustees for travel and other out-of-pocket 
expenses incurred by them in connection with attending such meetings. 
Trustees and officers of the Fund who are or have been employed by the 
Investment Manager or an affiliated company receive no compensation or 
expense reimbursement from the Fund. 

   As of the date of this Proxy Statement, 57 of the Dean Witter Funds, 
including each of the Funds represented in this Proxy Statement other than 
HIAT III and INSURED CAL MUNI, have adopted a retirement program under which 
an Independent Trustee who retires after serving for at least five years (or 
such lesser period as may be determined by the Board) as an Independent 
Director or Trustee of any Dean Witter Fund that has adopted the retirement 
program (each such Fund referred to as an "Adopting Fund" and each such 
Trustee referred to as an "Eligible Trustee") is entitled to retirement 
payments upon reaching the eligible retirement age (normally, after attaining 
age 72). Annual payments are based upon length of service. Currently, upon 
retirement, each Eligible Trustee is entitled to receive from the Fund, 
commencing as of his or her retirement date and continuing for the remainder 
of his or her life, an annual retirement benefit (the "Regular 


                                       8

Benefit") equal to 25.0% of his or her Eligible Compensation plus 0.4166666% 
of such Eligible Compensation for each full month of service as an 
Independent Trustee of any Adopting Fund in excess of five years up to a 
maximum of 50.0% after ten years of service. The foregoing percentages may be 
changed by the Board. "Eligible Compensation" is one-fifth of the total 
compensation earned by such Eligible Trustee for service to the Fund in the 
five year period prior to the date of the Eligible Trustee's retirement. An 
Eligible Trustee may elect alternate payments of his or her retirement 
benefits based upon the combined life expectancy of such Eligible Trustee and 
his or her spouse on the date of such Eligible Trustee's retirement. The 
amount estimated to be payable under this method, through the remainder of 
the later of the lives of such Eligible Trustee and spouse, will be the 
actuarial equivalent of the Regular Benefit. In addition, the Eligible 
Trustee may elect that the surviving spouse's periodic payment of benefits 
will be equal to either 50% or 100% of the previous periodic amount, an 
election that, respectively, increases or decreases the previous periodic 
amount so that the resulting payments will be the actuarial equivalent of the 
Regular Benefit. Benefits under the retirement program are not secured or 
funded by the Funds. 

   The following tables illustrate the compensation paid to each Fund's 
Independent Trustees by each respective Fund for its last fiscal year, and 
the retirement benefits accrued to the Independent Trustees of MIT II, MIOT 
II and INSURED MUNI by the respective Fund for its last fiscal year and the 
estimated retirement benefits for the Independent Trustees of MIT II, MIOT II 
and INSURED MUNI, to commence upon their retirement, as of the end of the 
respective Fund's last fiscal year. Mr. Hedien's term as Trustee of each Fund 
commenced on September 1, 1997. 

HIGH INCOME ADVANTAGE TRUST III 



 NAME OF INDEPENDENT TRUSTEE AGGREGATE COMPENSATION FROM THE FUND 
- ---------------------------  ------------------------------------ 
                          
Michael Bozic...............                $1,600 
Edwin J. Garn...............                 1,800 
Wayne E. Hedien.............                 3,750 
John R. Haire...............                   782 
Dr. Manuel H. Johnson.......                 1,750 
Michael E. Nugent...........                 1,800 
John L. Schroeder...........                 1,800 


MUNICIPAL INCOME TRUST II 



                                    FUND COMPENSATION                 ESTIMATED RETIREMENT BENEFITS 
                             -------------------------------- ---------------------------------------------- 
                                                                 ESTIMATED                      ESTIMATED 
                                                RETIREMENT    CREDITED YEARS     ESTIMATED        ANNUAL 
                                AGGREGATE         BENEFIT      OF SERVICE AT   PERCENTAGE OF     BENEFITS 
     NAME OF INDEPENDENT       COMPENSATION     ACCRUED AS      RETIREMENT       ELIGIBLE          UPON 
DIRECTOR                      FROM THE FUND    FUND EXPENSES   (MAXIMUM 10)    COMPENSATION   RETIREMENT(1) 
- ---------------------------  --------------- ---------------  -------------- ---------------  ------------- 
                                                                               
Michael Bozic...............      $1,650           $ 349            10             50.0%          $  875 
Edwin J. Garn ..............       1,850             497            10             50.0%             875 
John R. Haire(2) ...........       3,800            (835)(2)        10             50.0%           2,211 
Wayne E. Hedien.............         482               0             9             42.5%             744 
Dr. Manuel H. Johnson  .....       1,800             210            10             50.0%             875 
Michael E. Nugent ..........       1,850             354            10             50.0%             875 
John L. Schroeder...........       1,850             672             8             41.7%             729 


- ------------ 
(1)   Based on current levels of compensation. Amount of annual benefits also 
      varies depending on the Trustee's elections described in the discussion 
      of the retirement program above. 
(2)   This number reflects the extension of Mr. Haire's term as Trustee until 
      June 1, 1998. 


                                       9

MUNICIPAL INCOME OPPORTUNITIES TRUST II 



                                          FUND COMPENSATION                       ESTIMATED RETIREMENT BENEFITS 
                                 ------------------------------------ ------------------------------------------------------ 
                                                                           ESTIMATED                           ESTIMATED 
                                                       RETIREMENT       CREDITED YEARS        ESTIMATED          ANNUAL 
                                     AGGREGATE           BENEFIT         OF SERVICE AT      PERCENTAGE OF       BENEFITS 
                                    COMPENSATION       ACCRUED AS         RETIREMENT          ELIGIBLE            UPON 
NAME OF INDEPENDENT TRUSTEE        FROM THE FUND      FUND EXPENSES      (MAXIMUM 10)       COMPENSATION     RETIREMENT(1) 
- -------------------------------  ----------------- -----------------  ------------------ -----------------  --------------- 
                                                                                             
Michael Bozic...................       $1,650              $357              10               58.82%           $  971 
Edwin J. Garn ..................        1,750               514              10               58.82%              971 
John R. Haire(2) ...............        3,700              (651)             10               58.82%            2,280 
Wayne E. Hedien ................          832               123               9               50.00%              825 
Dr. Manuel H. Johnson ..........        1,700               215              10               58.82%              971 
Michael E. Nugent ..............        1,750               365              10               58.82%              971 
John L. Schroeder...............        1,750               694               8               49.02%              815 


- ------------ 
(1)   Based on current levels of compensation. Amount of annual benefits also 
      varies depending on the Trustee's elections described in the discussion 
      of the retirement program above. 
(2)   This number reflects the extension of Mr. Haire's term as Trustee until 
      June 1, 1998. 

INTERCAPITAL INSURED MUNICIPAL SECURITIES 



                                    FUND COMPENSATION                 ESTIMATED RETIREMENT BENEFITS 
                             -------------------------------- ---------------------------------------------- 
                                                                 ESTIMATED                      ESTIMATED 
                                                RETIREMENT    CREDITED YEARS     ESTIMATED        ANNUAL 
                                AGGREGATE         BENEFIT      OF SERVICE AT   PERCENTAGE OF     BENEFITS 
                               COMPENSATION     ACCRUED AS      RETIREMENT       ELIGIBLE          UPON 
NAME OF INDEPENDENT TRUSTEE   FROM THE FUND    FUND EXPENSES   (MAXIMUM 10)    COMPENSATION   RETIREMENT(1) 
- ---------------------------  --------------- ---------------  -------------- ---------------  ------------- 
                                                                               
Michael Bozic...............      $1,700            $0              10             50.0%          $  825 
Edwin J. Garn ..............       1,900             0              10             50.0              825 
John R. Haire(2) ...........       3,850             0              10             50.0            1,908 
Wayne E. Hedien.............         482             0               9             42.5              701 
Dr. Manuel H. Johnson  .....       1,850             0              10             50.0              825 
Michael E. Nugent ..........       1,900             0              10             50.0              825 
John L. Schroeder...........       1,900             0               8             41.7              693 


- ------------ 
(1)   Based on current levels of compensation. Amount of annual benefits also 
      varies depending on the Trustee's elections described in the discussion 
      of the retirement program above. 
(2)   This number reflects the extension of Mr. Haire's term as Trustee until 
      June 1, 1998. 

INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES 



 NAME OF INDEPENDENT TRUSTEE AGGREGATE COMPENSATION FROM THE FUND 
- ---------------------------  ------------------------------------ 
                          
Michael Bozic...............                $1,700 
Edwin J. Garn...............                 1,900 
John R. Haire...............                 3,850 
Wayne E. Hedien.............                   482 
Dr. Manuel H. Johnson.......                 1,850 
Michael E. Nugent...........                 1,900 
John L. Schroeder...........                 1,900 



                                      10

   The following table illustrates the compensation paid to the Independent 
Trustees of the Funds for the calendar year ended December 31, 1997 for 
services to the 84 Dean Witter Funds and, in the case of Messrs. Haire, 
Johnson, Nugent and Schroeder, the 14 TCW/DW Funds that were in operation at 
December 31, 1997. With respect to Messrs. Haire, Johnson, Nugent and 
Schroeder, the TCW/DW Funds are included solely because of a limited exchange 
privilege between those Funds and five Dean Witter Money Market Funds. Mr. 
Hedien's term as Director or Trustee of each Dean Witter Fund commenced on 
September 1, 1997. 

          CASH COMPENSATION FROM DEAN WITTER FUNDS AND TCW/DW FUNDS 



                                                             FOR SERVICE AS 
                                                               CHAIRMAN OF   FOR SERVICE AS 
                                                              COMMITTEE OF    CHAIRMAN OF 
                                FOR SERVICE                    INDEPENDENT   COMMITTEES OF     TOTAL CASH 
                              AS DIRECTOR OR  FOR SERVICE AS   DIRECTORS/     INDEPENDENT     COMPENSATION 
                                TRUSTEE AND    TRUSTEE AND    TRUSTEES AND      TRUSTEES    FOR SERVICES TO 
                                 COMMITTEE      COMMITTEE         AUDIT        AND AUDIT     84 DEAN WITTER 
                               MEMBER OF 84       MEMBER       COMMITTEES    COMMITTEES OF    FUNDS AND 14 
                                DEAN WITTER    OF 14 TCW/DW    OF 84 DEAN      14 TCW/DW         TCW/DW 
NAME OF INDEPENDENT TRUSTEES       FUNDS          FUNDS       WITTER FUNDS       FUNDS           FUNDS 
- ----------------------------  -------------- --------------  -------------- --------------  --------------- 
                                                                             
Michael Bozic ...............    $133,602           --             --              --           $133,602 
Edwin J. Garn ...............     149,702           --             --              --            149,702 
John R. Haire ...............     149,702        $73,725        $157,463        $25,350          406,240 
Wayne E. Hedien..............      39,010           --             --              --             39,010 
Dr. Manuel H. Johnson .......     145,702         71,125           --              --            216,827 
Michael E. Nugent ...........     149,702         73,725           --              --            223,427 
John L. Schroeder ...........     149,702         73,725           --              --            223,427 


   The following table illustrates the retirement benefits accrued to the 
Independent Trustees of the Funds by the 57 Dean Witter Funds (including each 
of the Funds represented in this Proxy Statement other than HIAT III and 
INSURED CAL MUNI) for the year ended December 31, 1997, and the estimated 
retirement benefits for the Independent Trustees, to commence upon their 
retirement, from the 57 Dean Witter Funds as of December 31, 1997. 

                RETIREMENT BENEFITS FROM ALL DEAN WITTER FUNDS 



                                 ESTIMATED                                         ESTIMATE ANNUAL 
                                CREDIT YEARS     ESTIMATED    RETIREMENT BENEFITS   BENEFITS UPON 
                                 OF SERVICE      PERCENTAGE        ACCRUED AS      RETIREMENT FROM 
                               AT RETIREMENT    OF ELIGIBLE       EXPENSES BY       ALL ADOPTING 
NAME OF INDEPENDENT TRUSTEES    (MAXIMUM 10)    COMPENSATION   ALL ADOPTING FUNDS     FUNDS(1) 
- ----------------------------  --------------- --------------  ------------------- --------------- 
                                                                      
Michael Bozic ...............        10             50.0%           $ 20,499          $ 47,025 
Edwin J. Garn ...............        10             50.0              30,878            47,025 
John R. Haire ...............        10             50.0             (19,823)(2)       127,897 
Wayne E. Hedien .............         9             42.5                   0            39,971 
Dr. Manuel H. Johnson .......        10             50.0              12,832            47,025 
Michael E. Nugent ...........        10             50.0              22,546            47,025 
John L. Schroeder............         8             41.7              39,350            39,504 


- ------------ 
(1)   Based on current levels of compensation. Amount of annual benefits also 
      varies depending on the Trustee's elections described in the discussion 
      of the retirement program above. 
(2)   This number reflects the extension of Mr. Haire's term as Director or 
      Trustee until June 1, 1998. 

   THE BOARD OF TRUSTEES OF EACH FUND UNANIMOUSLY RECOMMENDS THAT 
SHAREHOLDERS VOTE FOR THE ELECTION OF EACH OF THE TRUSTEES NOMINATED FOR 
ELECTION. 



                                      11

THE INVESTMENT MANAGER OR INVESTMENT ADVISER 

   InterCapital currently serves as investment manager or investment adviser 
of each Fund pursuant to an investment management agreement or investment 
advisory agreement entered into by each Fund and InterCapital (each, an 
"Agreement" and collectively, the "Agreements") dated May 31, 1997, which 
took effect upon the consummation of the merger of Dean Witter, Discover & 
Co. with Morgan Stanley Group Inc., and in that capacity provides investment 
advisory and, in certain cases, certain other services to the Funds. 
InterCapital is a wholly-owned subsidiary of MSDW. The Agreements were 
approved by the Board of Trustees on February 21, 1997, and by the 
shareholders of each Fund at their respective Annual Meeting of Shareholders 
held on May 20, 1997. The Agreements supersede earlier management and 
advisory agreements originally entered into by the Funds and InterCapital and 
are identical in all material respects, including fees payable by a Fund 
thereunder, to the earlier management and advisory agreements, except for 
dates of effectiveness and termination. 

THE INVESTMENT MANAGEMENT AGREEMENTS 

   Each Agreement of HIAT III, INSURED MUNI and INSURED CAL MUNI (in this 
section, each "Fund" refers to each of HIAT III, INSURED MUNI and INSURED CAL 
MUNI) provides that InterCapital shall obtain and evaluate such information 
and advice relating to the economy and securities and commodity markets as it 
deems necessary or useful to discharge its duties under the respective 
Agreements, and that it shall continuously supervise the management of the 
assets of each Fund in a manner consistent with the investment objectives and 
policies of that Fund and subject to such other limitations and directions as 
the Board of the Fund may, from time to time, prescribe. 

   InterCapital pays the compensation of the officers of each Fund and 
provides the Fund with office space and equipment, and clerical and 
bookkeeping services and telephone service, heat, light, power and other 
utilities. InterCapital also pays for the services of personnel in connection 
with the pricing of the Fund's shares and the preparation of prospectuses, 
proxy statements and reports required to be filed with federal and state 
securities commissions (except insofar as the participation or assistance of 
independent accountants and attorneys is, in the opinion of InterCapital, 
necessary or desirable). In return for its services and the expenses 
InterCapital assumes under the Agreements, each Fund pays InterCapital 
compensation which is computed and accrued weekly and payable monthly and 
which is determined by applying the following annual rate to each Fund's 
average weekly net assets as set forth in the table below: 



                                                                                    MANAGEMENT 
                                                                                     FEES PAID 
                                                                                  TO INTERCAPITAL    NET ASSETS 
                                                                    LAST FISCAL    DURING FUND'S    AS OF FISCAL 
FUND                            MANAGEMENT FEE RATE                  YEAR END    LAST FISCAL YEAR     YEAR END 
- ----------------  ----------------------------------------------- -------------  ---------------- -------------- 
                                                                                      
HIAT III......... 0.75% to the portion of the Fund's average          1/31/98        $596,066       $ 79,572,461 
                  weekly net assets not exceeding $250 million; 
                  0.60% to the portion of average weekly net 
                  assets exceeding $250 million and not exceeding 
                  $500 million; 0.50% to the portion of average 
                  weekly net assets exceeding $500 million and 
                  not exceeding $750 million; 0.40% to the 
                  portion of average weekly net assets exceeding 
                  $750 million and not exceeding $1 billion; 
                  0.30% to the portion of average weekly net 
                  assets exceeding $1 billion 
INSURED MUNI  ... 0.35% to the Fund's average weekly net assets      10/31/97        $480,886       $138,940,656 
INSURED CAL MUNI  0.35% to the Fund's average weekly net assets      10/31/97        $223,318       $ 65,110,656 



                                      12

   Under the Agreements, each Fund is obligated to bear all of the costs and 
expenses of its operation, except those specifically assumed by InterCapital, 
including, without limitation: charges and expenses of any registrar, 
custodian or depository appointed by the Fund for the safekeeping of its 
cash, portfolio securities or commodities and other property, and any stock 
transfer or dividend agent or agents appointed by the Fund; brokers' 
commissions chargeable to the Fund in connection with portfolio securities 
transactions to which the Fund is a party; all taxes, including securities or 
commodities issuance and transfer taxes, and corporate fees payable by the 
Fund to federal, state or other governmental agencies; costs and expenses of 
engraving or printing of certificates representing shares of the Fund; all 
costs and expenses in connection with registration and maintenance of 
registration of the Fund 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 cost and expense of 
printing, including typesetting, and distributing prospectuses of the Fund to 
its Shareholders; 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 InterCapital or any corporate affiliate of 
InterCapital; all expenses incident to the payment of any dividend, 
distribution, withdrawal or redemption, whether in shares or in cash; charges 
and expenses of any outside service used for the pricing of the Fund's 
shares; charges and expenses of legal counsel, including counsel to the 
Independent Trustees of the Fund, and independent accountants in connection 
with any matter relating to the Fund (not including compensation or expenses 
of attorneys employed by InterCapital); association dues; interest payable on 
the Fund's borrowings; fees and expenses incident to the listing of the 
Fund's shares on any stock exchange; postage; insurance premiums on property 
or personnel (including officers and Trustees) of the Fund which inure to its 
benefit; and extraordinary expenses (including, but not limited to, legal 
claims and liabilities and litigation costs and any indemnification related 
thereto); and all other charges and costs of InterCapital's operations unless 
otherwise explicitly provided in the respective Agreements. 

   The administrative services called for under the Agreements of HIAT III, 
INSURED MUNI and INSURED CAL MUNI are performed by DWSC, a wholly-owned 
subsidiary of InterCapital, pursuant to a Services Agreement between 
InterCapital and DWSC. 

THE INVESTMENT ADVISORY AGREEMENT 

   The Agreements of MIT II and MIOT II (in this section, each "Fund" refers 
to each of MIT II and MIOT II) provides that InterCapital shall continuously 
manage the assets of each Fund in a manner consistent with that Fund's 
investment objective. InterCapital shall obtain and evaluate such information 
and advice relating to the economy, securities markets and specific 
securities as it considers necessary or useful to continuously manage the 
assets of each Fund in a manner consistent with its investment objectives and 
policies. In addition, InterCapital pays the compensation of all personnel, 
including officers of each Fund, who are its employees. InterCapital has 
authority to place orders for the purchase and sale of portfolio securities 
on behalf of that Fund without prior approval of its Board. 

   In return for its investment services and the expenses which InterCapital 
assumes under the Agreement, each Fund pays InterCapital compensation which 
is computed and accrued weekly and payable monthly and which is determined by 
applying the following annual rate to each Fund's average weekly net assets 
as set forth in the table below: 



                                                                         ADVISORY FEES PAID 
                                                                           TO INTERCAPITAL     NET ASSETS 
                                                            LAST FISCAL  DURING FUND'S LAST   AS OF FISCAL 
FUND                      ADVISORY FEE RATE                  YEAR END        FISCAL YEAR        YEAR END 
- ---------  ---------------------------------------------- -------------  ------------------ -------------- 
                                                                                
MIT II ... 0.40% to the portion of the Fund's average        12/31/97        $1,074,903       $276,675,455 
           weekly net assets not exceeding $250 million 
           and 0.30% to the portion of the Fund's average 
           weekly net assets exceeding $250 million 
MIOT II... 0.50% to the Fund's average weekly net assets      2/28/98        $  890,401       $181,222,664 



                                      13

   Under the Agreements, each Fund is obligated to bear all of the costs and 
expenses of its operation, except those specifically assumed by InterCapital, 
including, without limitation: charges and expenses of any registrar, 
custodian or depository appointed by the Fund for the safekeeping of its 
cash, portfolio securities or commodities and other property, and any stock 
transfer or dividend agent or agents appointed by the Fund; brokers' 
commissions chargeable to the Fund in connection with portfolio securities 
transactions to which the Fund is a party; all taxes, including securities or 
commodities issuance and transfer taxes, and fees payable by the Fund to 
Federal, state or other governmental agencies; costs and expenses of 
engraving or printing of certificates representing shares of the Fund; all 
costs and expenses in connection with registration and maintenance of 
registration of the Fund 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 and the costs and expenses of 
preparation, 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 the Administrator or InterCapital 
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 the Fund, and independent accountants in 
connection with any matter relating to the Fund (not including compensation 
or expenses of attorneys employed by the Administrator or InterCapital); 
membership dues of industry associations; interest payable on Fund 
borrowings; fees and expenses incident to the listing of the Fund's shares on 
any stock exchange; postage; insurance premiums on property or personnel 
(including officers and Trustees) of the Fund 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 the Fund's operations unless otherwise 
explicitly provided in the Agreement. 

   The Agreement of each Fund (HIAT III, MIT II, MIOT II, INSURED MUNI and 
INSURED CAL MUNI), dated May 31, 1997, was initially approved by the Board of 
Trustees of each respective Fund, including a majority of the Independent 
Trustees, by vote cast in person at meetings of the Boards held on February 
21, 1997 called for the purpose of voting on the Agreements. The Shareholders 
of each Fund approved the respective Agreements at their respective Annual 
Meeting of Shareholders held on May 20, 1997. 

   The Agreements will continue in effect for an initial term ending April 
30, 1999 and will continue in effect from year to year thereafter provided 
that each such continuance is approved by the vote of a majority, as defined 
by the 1940 Act, of the outstanding voting securities of the Fund or by the 
Trustees of the Fund, and, in either event, by the vote cast in person by a 
majority of the Independent Trustees at a meeting called for the purpose of 
voting on such approval. 

   Each Agreement also provides that it may be terminated at any time by 
InterCapital, the Trustees or by a vote of a majority of the outstanding 
voting securities of the applicable Fund, in each instance without the 
payment of any penalty, on thirty days' notice and provides for its automatic 
termination in the event of its assignment. 

INTERCAPITAL 

   Dean Witter InterCapital Inc. is each Fund's investment manager or 
investment adviser. InterCapital maintains its offices at Two World Trade 
Center, New York, New York 10048. InterCapital, which was incorporated in 
July, 1992, is a wholly-owned subsidiary of MSDW, a preeminent global 
securities firm that maintains leading market positions in each of its three 
primary businesses--securities, asset management and credit services. 

                                      14

   The Principal Executive Officer and Directors of InterCapital, and their 
principal occupations, are: 

   Philip J. Purcell, Chairman of the Board of Directors and Chief Executive 
Officer of MSDW and DWR and Director of InterCapital, DWSC and Distributors; 
Richard M. DeMartini, President and Chief Operating Officer of Morgan Stanley 
Dean Witter Individual Asset Management Group and Director of DWR, 
Distributors, DWSC, InterCapital and MSDW Trust; James F. Higgins, President 
and Chief Operating Officer of Dean Witter Financial and Director of DWR, 
Distributors, InterCapital, DWSC and MSDW Trust; Charles A. Fiumefreddo, 
Executive Vice President and Director of DWR, Chairman of the Board of 
Directors, Chief Executive Officer and Director of InterCapital, DWSC and 
Distributors and Chairman of the Board of Directors and Director of MSDW 
Trust; Christine A. Edwards, Executive Vice President, Secretary and Chief 
Legal Officer of MSDW, Executive Vice President, Secretary, General Counsel 
and Director of DWR, Executive Vice President, Secretary, Chief Legal Officer 
and Director of Distributors and Director of InterCapital and DWSC; and 
Thomas C. Schneider, Executive Vice President and Chief Strategic and 
Administrative Officer of MSDW and Executive Vice President, Chief Financial 
Officer and Director of DWR, Distributors, InterCapital and DWSC. 

   The business address of Mr. Purcell, Ms. Edwards and Mr. Schneider is 1585 
Broadway, New York, New York 10036; the business address of the Executive 
Officer and other Directors is Two World Trade Center, New York, New York 
10048. 

   MSDW has its offices at 1585 Broadway, New York, New York 10036. There are 
various lawsuits pending against MSDW 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. 

   InterCapital and its wholly-owned subsidiary, DWSC, serve in various 
investment management, advisory, management and administrative capacities to 
investment companies and pension plans and other institutional and individual 
investors. The Appendix lists the investment companies for which InterCapital 
provides investment management or investment advisory services and which have 
similar investment objectives to those of the Funds listed in this Proxy 
Statement and sets forth the fees payable to InterCapital by such companies, 
including the Funds, and their net assets as of April 30, 1998. 

   InterCapital's wholly-owned subsidiary, DWSC, pursuant to an 
Administration Agreement with MIT II and MIOT II, serves as the Administrator 
of MIT II and MIOT II and receives from those Funds compensation which is 
computed and accrued weekly and payable monthly and which is determined by 
applying the following annual rates: MIT II--0.25% to the portion of the 
Fund's average weekly net assets not exceeding $250 million; 0.20% to the 
portion of the Fund's average weekly net assets exceeding $250 million but 
not exceeding $500 million; 0.167% to the portion of the Fund's average 
weekly net assets exceeding $500 million but not exceeding $750 million; and 
0.133% to the portion of the Fund's average weekly net assets exceeding $750 
million; MIOT II--0.30% to the average weekly net assets. During the fiscal 
year ended December 31, 1997 for MIT II and February 28, 1998 for MIOT II, 
the Funds accrued to DWSC administrative fees of $674,821 and $534,240, 
respectively. 

   During the fiscal year ended January 31, 1998 for HIAT III, December 31, 
1997 for MIT II, February 28, 1998 for MIOT II, October 31, 1997 for INSURED 
MUNI, and October 31, 1997 for INSURED CAL MUNI, each Fund accrued to MSDW 
Trust, each Fund's Transfer Agent and an affiliate of InterCapital, transfer 
agency fees of $29,986, $63,516, $47,672, $33,389 and $13,860, respectively. 

AFFILIATED BROKER 

   Because DWR, Morgan Stanley & Co. Incorporated and InterCapital are under 
the common control of MSDW, DWR and Morgan Stanley & Co. Incorporated are 
affiliated brokers of the Funds. During each of their 


                                      15

respective last fiscal years, each Fund paid no brokerage commissions to DWR. 
During the period June 1 through August 31, 1997, the Trusts did not pay 
brokerage commissions to Morgan Stanley & Co. Incorporated, which 
broker-dealer became an affiliate of InterCapital on May 31, 1997 upon 
consummation of the merger of Dean Witter Discover & Co. with Morgan Stanley 
Group Inc. 

   (2) RATIFICATION OR REJECTION OF SELECTION OF INDEPENDENT ACCOUNTANTS 

   The Trustees of each Fund have unanimously selected the firm of Price 
Waterhouse LLP as each Fund's independent accountants for the fiscal years 
ending January 31, 1999 for HIAT III, December 31, 1998 for MIT II, February 
28, 1999 for MIOT II and October 31, 1998 for INSURED MUNI and INSURED CAL 
MUNI. Its selection is being submitted for ratification or rejection by 
Shareholders of each Fund at the Meetings. Price Waterhouse LLP has been the 
independent accountants for each Fund since its inception, and has no direct 
or indirect financial interest in any of the Funds. 

   A representative of Price Waterhouse LLP is expected to be present at the 
Meetings and will be available to respond to appropriate questions of 
Shareholders. 

   The affirmative vote of the holders of a majority of the shares 
represented and entitled to vote at the Annual Meeting is required for 
ratification of the selection of Price Waterhouse LLP as the independent 
accountants for each respective Fund. 

   THE TRUSTEES OF EACH FUND UNANIMOUSLY RECOMMEND THAT THE SHAREHOLDERS 
RATIFY THE SELECTION OF PRICE WATERHOUSE LLP AS THE INDEPENDENT ACCOUNTANTS. 

   (3) FOR HIAT III, ELIMINATION OF THE FUND'S FUNDAMENTAL POLICY REGARDING 
                     INVESTMENTS IN RESTRICTED SECURITIES 

   A fundamental investment policy of HIAT III currently provides that the 
Fund will not invest more than 10% of its total assets in securities which 
are restricted as to disposition under the federal securities laws or 
otherwise ("Restricted Securities"). This policy with regard to investment in 
Restricted Securities is not required to be a fundamental policy and due to 
the current regulatory environment and securities markets, such restrictions 
are overbroad and not advantageous to the management of the Fund's portfolio. 

   In recognition of the increased size and liquidity of the institutional 
market for unregistered securities and the importance of institutional 
investors in the capital formation process, the Securities and Exchange 
Commission in recent years has advanced rule and legislative proposals 
designed to facilitate efficient trading of restricted securities among 
institutional investors. The most important of these, Rule 144A under the 
Securities Act of 1933 (the "1933 Act"), allows for broad institutional 
trading for securities subject to restriction on resale to the general 
public. This in turn, has served to broaden the market for such securities 
and increase the number of offerings of restricted securities in the 
marketplace. Presently, the markets for certain types of securities such as 
repurchase agreements, commercial paper, high yield securities, convertible 
securities, many types of municipal securities and some corporate bonds and 
notes are almost exclusively institutional. These instruments are often 
either exempt from registration or sold in transactions not requiring 
registration. As these institutional markets continue to develop and increase 
in size, the Fund would be constrained by its current investment restriction 
from increased participation in these markets. 

   HIAT III, in accordance with its investment policies, has a portfolio 
which is primarily comprised of high yield securities. In recent years, the 
number of high yield issues coming to market increasingly have been Rule 144A 
securities. The Investment Manager believes that elimination of the current 
investment restriction regarding restricted securities will enable the Fund 
to participate more fully in investment opportunities in the high yield 
market. 


                                      16

   As a closed-end investment company, the Fund may hold a significant amount 
of Restricted Securities in its portfolio, and, because of this closed-end 
structure, plus the fact that the shares of the Fund are traded on the New 
York Stock Exchange, the Fund is not subject to regulatory limits on the 
amount of such securities which it may hold, as is the case with open-end 
investment companies, which are subject to limits in order to meet redemption 
requests. Consequently, the restriction as currently existing is overbroad 
and unnecessary given the structure of the Fund. 

   In order for the Fund to take advantage of the institutional markets for 
restricted securities set forth above, the Board of the Fund and the 
Investment Manager recommend that the Fund eliminate its fundamental policy 
restricting investments in Restricted Securities to no more than 10% of total 
assets and that any policy regarding Restricted Securities be deemed 
non-fundamental with investment limits in such securities set by the Board of 
the Fund in response to changes in the markets for such securities. Under 
this new policy, Restricted Securities that are liquid as determined by the 
Board of the Fund may be purchased by the Fund without limitation and any 
limits on investments in illiquid Restricted Securities will be determined by 
the Board of the Fund given current market conditions at a given point in 
time. 

REQUIRED VOTE 

   Implementation of this proposal for the Fund requires approval at the 
Meeting by a majority of the outstanding voting securities of the Fund, as 
defined in the 1940 Act. Such a majority means the affirmative vote of the 
holders of: (a) 67% or more of the shares of the Fund present, in person or 
by proxy, at the Meeting, if the holders of more than 50% of the outstanding 
shares are so present, or (b) more than 50% of the outstanding shares of the 
Fund, whichever is less. 

   THE BOARD OF THE FUND RECOMMENDS THAT THE SHAREHOLDERS VOTE "FOR" THE 
ELIMINATION OF THE FUNDAMENTAL INVESTMENT POLICY AS DESCRIBED ABOVE. 

                            ADDITIONAL INFORMATION 

   In the event that the necessary quorum to transact business or the vote 
required to approve or reject any proposal for any Fund is not obtained at 
the Meetings, the persons named as proxies may propose one or more 
adjournments of the Meeting of the applicable Fund for a total of not more 
than 60 days in the aggregate to permit further solicitation of proxies. Any 
such adjournment will require the affirmative vote of the holders of a 
majority of the applicable Fund's shares present in person or by proxy at the 
Meeting. The persons named as proxies will vote in favor of such adjournment 
those proxies which have been received by the date of the Meeting. 

   Abstentions and, if applicable, broker "non-votes" will not count as votes 
in favor of any of the proposals, and broker "non-votes" will not be deemed 
to be present at the Meeting of any Fund for purposes of determining whether 
a particular proposal to be voted upon 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. 

                            SHAREHOLDER PROPOSALS 

   Proposals of security holders intended to be presented at the next Annual 
Meeting of Shareholders of each respective Fund must be received by no later 
than December   , 1998 for HIAT III, MIT II, MIOT II, INSURED MUNI and 
INSURED CAL MUNI, for inclusion in the proxy statement for each respective 
Fund's next Annual Meeting. The mere submission of a proposal does not 
guarantee its inclusion in the proxy materials or its presentation at the 
meeting. Certain rules under the federal securities laws must be met. 


                                      17

                           REPORTS TO SHAREHOLDERS 

   EACH FUND'S MOST RECENT ANNUAL REPORT HAS BEEN SENT PREVIOUSLY TO 
SHAREHOLDERS AND IS AVAILABLE WITHOUT CHARGE UPON REQUEST FROM ADRIENNE 
RYAN-PINTO AT MORGAN STANLEY DEAN WITTER TRUST FSB, HARBORSIDE FINANCIAL 
CENTER, PLAZA TWO, JERSEY CITY, NEW JERSEY 07311 (TELEPHONE 1-800-869-NEWS) 
(TOLL-FREE). 

                         INTEREST OF CERTAIN PERSONS 

   MSDW, InterCapital, DWR, DWSC, and certain of their respective Directors, 
Officers, and employees, including persons who are Trustees or Officers of 
the Funds, may be deemed to have an interest in certain of the proposals 
described in this Proxy Statement to the extent that certain of such 
companies and their affiliates have contractual and other arrangements, 
described elsewhere in this Proxy Statement, pursuant to which they are paid 
fees by the Funds, and certain of those individuals are compensated for 
performing services relating to the Funds and may also own shares of MSDW. 
Such companies and persons may thus be deemed to derive benefits from the 
approvals by Shareholders of such proposals. 

                                OTHER BUSINESS 

   The management of the Funds knows of no other matters which may be 
presented at the Meetings. However, if any matters not now known properly 
come before the Meetings, it is the intention of the persons named in the 
enclosed form of proxy to vote all shares that they are entitled to vote on 
any such matter, utilizing such proxy in accordance with their best judgment 
on such matters. 
                                          By Order of the Board of Trustees 


                                                   BARRY FINK 
                                                   Secretary 

                                      18

                                                                      APPENDIX 

   InterCapital serves as investment manager to HIAT III and the other 
investment companies listed below which have similar investment objectives to 
those of HIAT III. Set forth below is a chart showing the net assets of each 
such investment company as of April 30, 1998 and the investment management 
fees rate(s) applicable to such investment company. 



                                                                                       CURRENT INVESTMENT 
                                                                                     MANAGEMENT FEE RATE(S) 
                                                         NET ASSETS                    AS A PERCENTAGE OF 
                                                        AS OF 4/30/98                      NET ASSETS 
                                                ---------------------------- ------------------------------------- 
                                                                       
1.DEAN WITTER HIGH YIELD SECURITIES INC.* ..... 
                                                    $ _____________ (Class A)  0.50% on assets up to $500 million, 
                                                      _____________ (Class B)  scaled down at various asset levels 
                                                      _____________ (Class C)  to 0.30% on assets over $3 billion 
                                                      _____________ (Class D) 
2.DEAN WITTER U.S. GOVERNMENT SECURITIES 
  TRUST*.......................................     $ _____________ (Class A)   0.50% on assets up to $1 billion, 
                                                      _____________ (Class B)  scaled down at various asset levels 
                                                      _____________ (Class C) to 0.30% on assets over $12.5 billion 
                                                      _____________ (Class D) 
3.DEAN WITTER CONVERTIBLE SECURITIES TRUST* ... 
                                                    $ _____________ (Class A)  0.60% on assets up to $750 million, 
                                                      _____________ (Class B)  scaled down at various asset levels 
                                                      _____________ (Class C)  to 0.425% on assets over $3 billion 
                                                      _____________ (Class D) 
4.DEAN WITTER FEDERAL SECURITIES TRUST* ....... 
                                                    $ _____________ (Class A)   0.55% on assets up to $1 billion, 
                                                      _____________ (Class B)  scaled down at various asset levels 
                                                      _____________ (Class C) to 0.35% on assets over $12.5 billion 
                                                      _____________ (Class D) 
5. INTERCAPITAL INCOME SECURITIES INC.** ......     $ _____________            0.50% 
6. HIGH INCOME ADVANTAGE TRUST**...............     $ _____________            0.75% on assets up to $250 million, 
                                                                               scaled down at various asset levels 
                                                                               to 0.30% on assets over $1 billion 
7. HIGH INCOME ADVANTAGE TRUST II**............     $ _____________            0.75% on assets up to $250 million, 
                                                                               scaled down at various asset levels 
                                                                               to 0.30% on assets over $1 billion 
8. HIGH INCOME ADVANTAGE TRUST III**...........     $ _____________            0.75% on assets up to $250 million, 
                                                                               scaled down at various asset levels 
                                                                               to 0.30% on assets over $1 billion 
9.DEAN WITTER INTERMEDIATE INCOME SECURITIES* . 
                                                    $ _____________ (Class A)  0.60% on assets up to $500 million, 
                                                      _____________ (Class B)  scaled down at various asset levels 
                                                      _____________ (Class C)  to 0.30% on assets over $1 billion 
                                                      _____________ (Class D) 
10.DEAN WITTER WORLD WIDE INCOME TRUST* ....... 
                                                    $ _____________ (Class A)  0.75% on assets up to $250 million, 
                                                      _____________ (Class B)  scaled down at various asset levels 
                                                      _____________ (Class C)  to 0.30% on assets over $1 billion 
                                                      _____________ (Class D) 
11.DEAN WITTER GOVERNMENT INCOME TRUST** ......     $ _____________            0.60% 
12.DEAN WITTER GLOBAL SHORT-TERM INCOME FUND 
   INC.*.......................................     $ _____________            0.55% on assets up to $500 million 
                                                                               and 0.50% on assets over $500 million 


                                      A-1

                                                                                       CURRENT INVESTMENT 
                                                                                     MANAGEMENT FEE RATE(S) 
                                                         NET ASSETS                    AS A PERCENTAGE OF 
                                                        AS OF 4/30/98                      NET ASSETS 
                                                ----------------------------  ------------------------------------- 
13.DEAN WITTER SHORT-TERM U.S. TREASURY 
   TRUST*......................................     $ _____________                           0.35% 
14.DEAN WITTER DIVERSIFIED INCOME TRUST* ...... 
                                                    $ _____________ (Class A)                 0.40% 
                                                      _____________ (Class B) 
                                                      _____________ (Class C) 
                                                      _____________ (Class D) 
15.DEAN WITTER SHORT-TERM BOND FUND*...........     $ _____________            0.70%(1) 
16. PRIME INCOME TRUST**.......................     $ _____________            0.90% on assets up to $500 million 
                                                                               and 0.85% on assets over $500 million 
17.DEAN WITTER BALANCED INCOME FUND*...........     $ _____________ (Class A)  0.60% 
                                                      _____________ (Class B) 
                                                      _____________ (Class C) 
                                                      _____________ (Class D) 
18.DEAN WITTER RETIREMENT SERIES:* 
   (a) U.S. GOVERNMENT SECURITIES SERIES ......     $ _____________            0.65% (2) 
   (b) INTERMEDIATE INCOME SECURITIES SERIES .. 
                                                    $ _____________            0.65% (2) 
19.DEAN WITTER VARIABLE INVESTMENT SERIES:*** 
   (a) QUALITY INCOME PLUS PORTFOLIO........... 
                                                    $ _____________            0.50% on assets up to $500 million 
                                                                               and 0.45% on assets over $500 million 
   (b) HIGH YIELD PORTFOLIO....................     $ _____________            0.50% 
20.DEAN WITTER SELECT DIMENSIONS INVESTMENT 
   SERIES:*** 
   (a) DIVERSIFIED INCOME PORTFOLIO............     $ _____________            0.40% 
   (b) NORTH AMERICAN GOVERNMENT SECURITIES 
       PORTFOLIO...............................     $ _____________            0.65% (of which 40% is paid to a 
                                                                               Sub-Adviser) 
21. DEAN WITTER INTERMEDIATE TERM U.S. 
    TREASURY TRUST*............................     $ _____________            0.35%(3) 

- ------------ 
*      Open-end investment company. 
**     Closed-end investment company. 
***    Open-end investment company offered only to life insurance companies in 
       connection with variable annuity and/or variable life insurance 
       contracts. 
(1)    InterCapital has undertaken, through December 31, 1998, to continue to 
       assume all operating expenses of Dean Witter Short-Term Bond Fund 
       (except for any brokerage fees) and to waive the compensation provided 
       for in its investment management agreement with that company. 
(2)    InterCapital has undertaken, through June 30, 1998, to continue to 
       assume all operating expenses of the Series of Dean Witter Retirement 
       Series (except for brokerage fees and a portion of organizational 
       expenses) and to waive the compensation provided for each Series in its 
       investment management agreement with that company in respect of each 
       Series to the extent that such expenses and compensation on an 
       annualized basis exceed 1.0% of the average daily net assets of the 
       pertinent Series. 
(3)    InterCapital has undertaken, through December 31, 1998, to continue to 
       assume all operating expenses of Dean Witter Intermediate Term U.S. 
       Treasury Trust (except for any 12b-1 fees and brokerage expenses) and 
       to waive the compensation provided for in its investment management 
       agreement with that company. 

                                      A-2

    InterCapital serves as investment adviser to MIT II and MIOT II, 
investment manager to INSURED MUNI and INSURED CAL MUNI and as investment 
manager or investment adviser to the other investment companies listed below 
which have similar investment objectives to those of MIT II, MIOT II, INSURED 
MUNI and INSURED CAL MUNI. Set forth below is a chart showing the net assets 
of each such investment company as of April 30, 1998 and the investment 
management or advisory fee rate(s) applicable to such investment company. 



                                                                                    CURRENT INVESTMENT 
                                                                                      MANAGEMENT OR 
                                                                                   ADVISORY FEE RATE(S) 
                                                       NET ASSETS                    AS A PERCENTAGE 
                                                      AS OF 4/30/98                   OF NET ASSETS 
                                              ---------------------------- ---------------------------------- 
                                                                     
1.DEAN WITTER CALIFORNIA TAX-FREE INCOME 
  FUND*......................................           $ _______ (Class A) 0.55% on assets up to 
                                                          _______ (Class B) $500 million, scaled down at 
                                                          _______ (Class C) various asset levels to 0.45% on 
                                                          _______ (Class D) assets over $1.25 billion 
2.DEAN WITTER LIMITED TERM MUNICIPAL TRUST* .           $ _______           0.50% 
3.DEAN WITTER MULTI-STATE MUNICIPAL SERIES 
  TRUST*.....................................           $ _______           0.35% 
4.DEAN WITTER NEW YORK TAX-FREE INCOME 
  FUND*......................................           $ _______ (Class A) 0.55% on assets up to 
                                                          _______ (Class B) $500 million and 0.525% on assets 
                                                          _______ (Class C) over $500 million 
                                                          _______ (Class D) 
5.DEAN WITTER TAX-EXEMPT SECURITIES TRUST* .. 
                                                        $ _______ (Class A) 0.50% on assets up to 
                                                          _______ (Class B) $500 million, scaled down at 
                                                          _______ (Class C) various asset levels to 0.325% on 
                                                          _______ (Class D) assets over $1.25 billion 
6.INTERCAPITAL CALIFORNIA INSURED MUNICIPAL 
  INCOME TRUST**.............................           $ _______           0.35% 
7.INTERCAPITAL CALIFORNIA QUALITY MUNICIPAL 
  SECURITIES**...............................           $ _______           0.35% 
8.INTERCAPITAL INSURED CALIFORNIA MUNICIPAL 
  SECURITIES**...............................           $ _______           0.35% 
9.INTERCAPITAL INSURED MUNICIPAL BOND 
  TRUST**....................................           $ _______           0.35% 
10.INTERCAPITAL INSURED MUNICIPAL INCOME 
   TRUST**...................................           $ _______           0.35% 
11.INTERCAPITAL INSURED MUNICIPAL 
   SECURITIES**..............................           $ _______           0.35% 
12.INTERCAPITAL INSURED MUNICIPAL TRUST** ...           $ _______           0.35% 
13.INTERCAPITAL NEW YORK QUALITY MUNICIPAL 
   SECURITIES**..............................           $ _______           0.35% 
14.INTERCAPITAL QUALITY MUNICIPAL INCOME 
   TRUST**...................................           $ _______           0.35% 

                                      A-3

                                                                                    CURRENT INVESTMENT 
                                                                                      MANAGEMENT OR 
                                                                                   ADVISORY FEE RATE(S) 
                                                       NET ASSETS                    AS A PERCENTAGE 
                                                      AS OF 4/30/98                   OF NET ASSETS 
                                              ---------------------------- ---------------------------------- 
15.INTERCAPITAL QUALITY MUNICIPAL INVESTMENT 
   TRUST**...................................           $ _______           0.35% 
16.INTERCAPITAL QUALITY MUNICIPAL 
   SECURITIES**..............................           $ _______           0.35% 
17.MUNICIPAL INCOME TRUST**..................           $ _______           0.35% on assets up to 
                                                                            $250 million and 0.25% on assets 
                                                                            over $250 million 
18.MUNICIPAL INCOME TRUST II**...............           $ _______           0.40% on assets up to 
                                                                            $250 million and 0.30% on assets 
                                                                            over $250 million 
19.MUNICIPAL INCOME TRUST III**..............           $ _______           0.40% on assets up to 
                                                                            $250 million and 0.30% on assets 
                                                        $ _______           over $250 million 
20.MUNICIPAL INCOME OPPORTUNITIES TRUST** ...           $ _______           0.50% 
21.MUNICIPAL INCOME OPPORTUNITIES 
   TRUST II**................................           $ _______           0.50% 
22.MUNICIPAL INCOME OPPORTUNITIES 
   TRUST III**...............................           $ _______           0.50% 
23.MUNICIPAL PREMIUM INCOME TRUST**..........           $ _______           0.40% 
24.DEAN WITTER SELECT MUNICIPAL REINVESTMENT 
   FUND***...................................           $ _______           0.50% 
25.DEAN WITTER HAWAII MUNICIPAL TRUST*  .....           $ _______           0.35% (1) 

- ------------ 
*      Open-end investment company 
**     Closed-end investment company 
***    Open-end investment company offered only to the holders of units of 
       certain unit investment trusts (UITs) in connection with the 
       reinvestment of UIT distributions 
(1)    InterCapital has undertaken, through December 31, 1998, to continue to 
       assume all operating expenses (except for any 12b-1 and brokerage fees) 
       of Dean Witter Hawaii Municipal Trust and to waive the compensation 
       provided for in its investment management agreement with that company. 


                                      A-4

                       HIGH INCOME ADVANTAGE TRUST III 

                                    PROXY 

          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES 

The undersigned hereby appoints Robert M. Scanlan, Barry Fink, and Joseph J. 
McAlinden, or any of them, proxies, each with the power of substitution, to 
vote on behalf of the undersigned at the Annual Meeting of Shareholders of 
High Income Advantage Trust III on June 23, 1998, at 9:00 a.m., New York City 
time, and at any adjournment thereof, on the proposals set forth in the 
Notice of Meeting dated May   , 1998 as follows: 










                         (Continued on reverse side) 
THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN 
BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE 
VOTED "FOR" THE TRUSTEES AND THE PROPOSALS SET FORTH ON THE REVERSE HEREOF 
AND AS RECOMMENDED BY THE BOARD OF TRUSTEES. 



     IMPORTANT--THIS PROXY MUST BE SIGNED AND DATED ON THE REVERSE SIDE. 


[X] PLEASE MARK VOTES AS 
    IN THE EXAMPLE USING 
    BLACK OR BLUE INK 
                                                           FOR ALL
1. Election of three (3) Trustees:      FOR    WITHHOLD    EXCEPT 
                                        [ ]       [ ]        [ ]


   Wayne E. Hedien, Manuel H. Johnson,
   John L. Schroeder

   IF YOU WISH TO WITHHOLD AUTHORITY FOR ANY PARTICULAR NOMINEE, MARK THE 
   "FOR ALL EXCEPT" BOX AND STRIKE A LINE THROUGH THE NOMINEE'S NAME. 

2. Ratification of appointment of Price   FOR    AGAINST   ABSTAIN
   Waterhouse LLP as independent          [ ]      [ ]       [ ]  
   accountants.

3. Elimination of Fundamental Policy      FOR    AGAINST   ABSTAIN
   Regarding Investments in Restricted    [ ]      [ ]       [ ]  
   Securities                             

                                           Date ____________

Please make sure to sign and date this Proxy using black or blue ink. 

             ---------------------------------------------------
                      Shareholder sign in the box above 


             ---------------------------------------------------
                   Co-Owner (if any) sign in the box above 


 PRX 00096               Please Detach at Perforation

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


                       HIGH INCOME ADVANTAGE TRUST III 

                                  IMPORTANT 

                   PLEASE SEND IN YOUR PROXY.........TODAY! 
 YOU ARE URGED TO DATE AND SIGN THE ATTACHED PROXY AND RETURN IT PROMPTLY IN 
 THE ENCLOSED ENVELOPE. THIS WILL HELP SAVE THE EXPENSE OF FOLLOW-UP LETTERS 
TO SHAREHOLDERS WHO HAVE NOT RESPONDED. 


                          MUNICIPAL INCOME TRUST II 

                                    PROXY 

          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES 

The undersigned hereby appoints Robert M. Scanlan, Barry Fink, and Joseph J. 
McAlinden, or any of them, proxies, each with the power of substitution, to 
vote on behalf of the undersigned at the Annual Meeting of Shareholders of 
Municipal Income Trust II on June 23, 1998, at 9:00 a.m., New York City time, 
and at any adjournment thereof, on the proposals set forth in the Notice of 
Meeting dated May   , 1998 as follows: 









                         (Continued on reverse side) 

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN 
BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE 
VOTED "FOR" THE TRUSTEES AND THE PROPOSAL SET FORTH ON THE REVERSE HEREOF AND 
AS RECOMMENDED BY THE BOARD OF TRUSTEES. 

     IMPORTANT--THIS PROXY MUST BE SIGNED AND DATED ON THE REVERSE SIDE. 


[X] PLEASE MARK VOTES AS 
    IN THE EXAMPLE USING 
    BLACK OR BLUE INK 
                                                           FOR ALL
1. Election of four (4) Trustees:       FOR    WITHHOLD    EXCEPT 
                                        [ ]       [ ]        [ ]


   Edwin J. Garn, John R. Haire,     
   Michael E. Nugent, Philip J. Purcell

   IF YOU WISH TO WITHHOLD AUTHORITY FOR ANY PARTICULAR NOMINEE, MARK THE 
   "FOR ALL EXCEPT" BOX AND STRIKE A LINE THROUGH THE NOMINEE'S NAME. 

2. Ratification of appointment of Price   FOR    AGAINST   ABSTAIN
   Waterhouse LLP as independent          [ ]      [ ]       [ ]  
   accountants.






                                           Date ____________

Please make sure to sign and date this Proxy using black or blue ink. 


             ---------------------------------------------------
                      Shareholder sign in the box above 


             ---------------------------------------------------
                   Co-Owner (if any) sign in the box above 

 PRX 00124               Please Detach at Perforation

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

                           MUNICIPAL INCOME TRUST II

                                   IMPORTANT

                   PLEASE SEND IN YOUR PROXY.........TODAY! 

 YOU ARE URGED TO DATE AND SIGN THE ATTACHED PROXY AND RETURN IT PROMPTLY IN 
 THE ENCLOSED ENVELOPE. THIS WILL HELP SAVE THE EXPENSE OF FOLLOW-UP LETTERS 
TO SHAREHOLDERS WHO HAVE NOT RESPONDED. 


                   MUNICIPAL INCOME OPPORTUNITIES TRUST II 

                                    PROXY 

          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES 

The undersigned hereby appoints Robert M. Scanlan, Barry Fink, and Joseph J. 
McAlinden, or any of them, proxies, each with the power of substitution, to 
vote on behalf of the undersigned at the Annual Meeting of Shareholders of 
Municipal Income Opportunities Trust II on June 23, 1998, at 9:00 a.m., New 
York City time, and at any adjournment thereof, on the proposals set forth in 
the Notice of Meeting dated May   , 1998 as follows: 









                         (Continued on reverse side) 

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN 
BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE 
VOTED "FOR" THE TRUSTEES AND THE PROPOSAL SET FORTH ON THE REVERSE HEREOF AND 
AS RECOMMENDED BY THE BOARD OF TRUSTEES. 

     IMPORTANT--THIS PROXY MUST BE SIGNED AND DATED ON THE REVERSE SIDE. 


[X] PLEASE MARK VOTES AS 
    IN THE EXAMPLE USING 
    BLACK OR BLUE INK 
                                                        FOR ALL
1. Election of three (3) Trustees:   FOR    WITHHOLD    EXCEPT
                                     [ ]      [ ]         [ ]



   Wayne E. Hedien, Manuel H. Johnson, 
   John L. Schroeder 

   IF YOU WISH TO WITHHOLD AUTHORITY FOR ANY PARTICULAR NOMINEE, MARK THE 
   "FOR ALL EXCEPT" BOX AND STRIKE A LINE THROUGH THE NOMINEE'S NAME. 

2. Ratification of appointment of Price   FOR   AGAINST  ABSTAIN
   Waterhouse LLP as independent          [ ]     [ ]      [ ]
   accountants.

                                           Date ___________

Please make sure to sign and date this Proxy using black or blue ink. 


                 --------------------------------------------
                      Shareholder sign in the box above 


                 --------------------------------------------
                   Co-Owner (if any) sign in the box above 

 PRX 00128               Please Detach at Perforation

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


                   MUNICIPAL INCOME OPPORTUNITIES TRUST II 

                                  IMPORTANT 

                   PLEASE SEND IN YOUR PROXY.........TODAY! 

 YOU ARE URGED TO DATE AND SIGN THE ATTACHED PROXY AND RETURN IT PROMPTLY IN 
 THE ENCLOSED ENVELOPE. THIS WILL HELP SAVE THE EXPENSE OF FOLLOW-UP LETTERS 
TO SHAREHOLDERS WHO HAVE NOT RESPONDED. 


             INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES 

                                    PROXY 

          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES 

The undersigned hereby appoints Robert M. Scanlan, Barry Fink, and Joseph J. 
McAlinden, or any of them, proxies, each with the power of substitution, to 
vote on behalf of the undersigned at the Annual Meeting of Shareholders of 
InterCapital Insured California Municipal Securities on June 23, 1998, at 
9:00 a.m., New York City time, and at any adjournment thereof, on the 
proposals set forth in the Notice of Meeting dated May   , 1998 as follows: 





                         (Continued on reverse side) 

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN 
BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE 
VOTED "FOR" THE TRUSTEES AND THE PROPOSAL SET FORTH ON THE REVERSE HEREOF AND 
AS RECOMMENDED BY THE BOARD OF TRUSTEES. 

     IMPORTANT--THIS PROXY MUST BE SIGNED AND DATED ON THE REVERSE SIDE. 


X   PLEASE MARK VOTES AS 
    IN THE EXAMPLE USING 
    BLACK OR BLUE INK 
                                                          FOR ALL
1. Election of four (4) Trustees:        FOR   WITHHOLD   EXCEPT
                                         [ ]      [ ]       [ ]


   Edwin J. Garn, John R. Haire, 
   Michael E. Nugent, Philip J. Purcell 

   IF YOU WISH TO WITHHOLD AUTHORITY FOR ANY PARTICULAR NOMINEE, MARK THE 
   "FOR ALL EXCEPT" BOX AND STRIKE A LINE THROUGH THE NOMINEE'S NAME. 

2. Ratification of appointment of          FOR   AGAINST  ABSTAIN
   Price Waterhouse LLP as independent     [ ]     [ ]      [ ]
   accountants.

                                           Date ___________________

Please make sure to sign and date this Proxy using black or blue ink. 

                ---------------------------------------------
                      Shareholder sign in the box above 


                ---------------------------------------------
                   Co-Owner (if any) sign in the box above 

 PRX 00039               Please Detach at Perforation

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


             INTERCAPITAL INSURED CALIFORNIA MUNICIPAL SECURITIES 

                                  IMPORTANT 

                   PLEASE SEND IN YOUR PROXY.........TODAY! 

 YOU ARE URGED TO DATE AND SIGN THE ATTACHED PROXY AND RETURN IT PROMPTLY IN 
 THE ENCLOSED ENVELOPE. THIS WILL HELP SAVE THE EXPENSE OF FOLLOW-UP LETTERS 
TO SHAREHOLDERS WHO HAVE NOT RESPONDED. 



                  INTERCAPITAL INSURED MUNICIPAL SECURITIES 

                                    PROXY 

          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES 

The undersigned hereby appoints Robert M. Scanlan, Barry Fink, and Joseph J. 
McAlinden, or any of them, proxies, each with the power of substitution, to 
vote on behalf of the undersigned at the Annual Meeting of Shareholders of 
InterCapital Insured Municipal Securities on June 23, 1998, at 9:00 a.m., New 
York City time, and at any adjournment thereof, on the proposals set forth in 
the Notice of Meeting dated May   , 1998 as follows: 













                         (Continued on reverse side) 
THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN 
BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE 
VOTED "FOR" THE TRUSTEES AND THE PROPOSAL SET FORTH ON THE REVERSE HEREOF AND 
AS RECOMMENDED BY THE BOARD OF TRUSTEES. 

     IMPORTANT--THIS PROXY MUST BE SIGNED AND DATED ON THE REVERSE SIDE. 


X   PLEASE MARK VOTES AS 
    IN THE EXAMPLE USING 
    BLACK OR BLUE INK 
                                                    FOR ALL
1. Election of four (4) Trustees:   FOR   WITHHOLD  EXCEPT
                                    [ ]     [ ]       [ ] 


   Edwin J. Garn, John R. Haire, 
   Michael E. Nugent, Philip J. Purcell 

   IF YOU WISH TO WITHHOLD AUTHORITY FOR ANY PARTICULAR NOMINEE, MARK THE 
   "FOR ALL EXCEPT" BOX AND STRIKE A LINE THROUGH THE NOMINEE'S NAME. 

2. Ratification of appointment of Price    FOR   AGAINST   ABSTAIN
   Waterhouse LLP as independent           [ ]     [ ]       [ ] 
   accountants.
 
                                           Date  ___________________

Please make sure to sign and date this Proxy using black or blue ink. 


                 ------------------------------------------
                      Shareholder sign in the box above 


                 ------------------------------------------
                   Co-Owner (if any) sign in the box above 

 PRX 00038               Please Detach at Perforation

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

                  INTERCAPITAL INSURED MUNICIPAL SECURITIES 

                                  IMPORTANT 

                   PLEASE SEND IN YOUR PROXY.........TODAY! 

 YOU ARE URGED TO DATE AND SIGN THE ATTACHED PROXY AND RETURN IT PROMPTLY IN 
 THE ENCLOSED ENVELOPE. THIS WILL HELP SAVE THE EXPENSE OF FOLLOW-UP LETTERS 
TO SHAREHOLDERS WHO HAVE NOT RESPONDED.