Exhibit 4(b)

                  FORM OF AGREEMENT AND PLAN OF REORGANIZATION

THIS AGREEMENT AND PLAN OF REORGANIZATION (the "Agreement") is made as of this
[ ] day of [ ], 2009, by and among Janus Adviser Series, a Delaware statutory
trust (the "JAD Trust"), on behalf of Janus Adviser [ ] Fund, a series of the
JAD Trust (the "Predecessor Fund"), Janus Investment Fund (the "JIF Trust"), a
Massachusetts business trust, on behalf of Janus [ ] Fund a series of the JIF
Trust (the "Successor Fund"), and Janus Capital Management LLC, a Delaware
limited liability company ("JCM").

All references in this Agreement to action taken by the Predecessor Fund or the
Successor Fund shall be deemed to refer to action taken by the JIF Trust or JAD
Trust on behalf of the respective portfolio series.

This Agreement is intended to be and is adopted as a plan of reorganization and
liquidation within the meaning of Section 368(a) of the United States Internal
Revenue Code of 1986, as amended (the "Code"). The reorganization (the
"Reorganization") will consist of the transfer by the Predecessor Fund of all or
substantially all of its assets to the Successor Fund, in exchange solely for
[Class A, Class C, Class I, Class R and Class S] voting shares of beneficial
interest in the Successor Fund (the "Successor Fund Shares") having an aggregate
net asset value approximately equal to the aggregate net asset value of the same
class of shares of the Predecessor Fund, the assumption by the Successor Fund of
all the liabilities of the Predecessor Fund, and the distribution of the [Class
A, Class C, Class I, Class R and Class S] Successor Fund Shares to the
shareholders of the Predecessor Fund in complete liquidation of the Predecessor
Fund as provided herein, all upon the terms and conditions hereinafter set forth
in this Agreement.

WHEREAS, the Board of Trustees of each of the JAD Trust and the JIF Trust has
determined that it is in the best interest of the Predecessor Fund and the
Successor Fund, respectively, that the assets of the Predecessor Fund be
acquired by the Successor Fund pursuant to this Agreement and in accordance with
the applicable statutes of the Commonwealth of Massachusetts and the State of
Delaware, and that the interests of existing shareholders will not be diluted as
a result of this transaction;

WHEREAS, concurrently herewith, the Board of Trustees of each of the JAD Trust
and the JIF Trust are entering into separate Plans of Reorganization which
contemplate the reorganization of certain series of the JAD Trust into existing
series of the JIF Trust (each a "Preexisting Fund Reorganization"); and

WHEREAS, concurrently herewith, the Board of Trustees of each of the JAD Trust
and the JIF Trust are entering into separate Plans of Reorganization which
contemplate the reorganization of certain series of the JAD Trust into newly
created series of the JIF Trust (each a "Shell Reorganization").

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

1.  PLAN OF REORGANIZATION

1.1 Subject to the terms and conditions herein set forth, the JAD Trust shall
(i) transfer all or substantially all of the assets of the Predecessor Fund, as
set forth in paragraph 1.2, to the Successor Fund, (ii) the JIF Trust shall
cause the Successor Fund to deliver to the JAD Trust full and fractional [Class
A, Class C, Class I, Class R and Class S] Successor Fund Shares having an
aggregate net asset value approximately equal to the value of the aggregate net
assets of the same class of shares of the Predecessor Fund as of the close of
regular session trading on the New York Stock Exchange on the Closing Date, as
set forth in paragraph 2.1 (the "Closing Date") and (iii) the JIF Trust shall
cause the Successor Fund to assume all liabilities of the Predecessor Fund, as
set forth in paragraph 1.2. Such transactions shall take place at the closing
provided for in paragraph 2.1 (the "Closing").

1.2 The assets of the Predecessor Fund to be acquired by the Successor Fund
shall consist of all property, including, without limitation, all cash,
securities, commodities and futures interests, and dividends or interest
receivable which are owned by the Predecessor Fund and any deferred or prepaid
expenses shown as an asset on the books of the Predecessor Fund on the Closing
Date. The Successor Fund will assume all of the liabilities, expenses, costs,
charges and reserves of the Predecessor Fund of any kind, whether



absolute, accrued, contingent or otherwise in existence on the Closing Date.

1.3 The Predecessor Fund will distribute pro rata to its shareholders of record
of the applicable classes, determined as of immediately after the close of
business on the Closing Date (the "Current Shareholders"), the [Class A, Class
C, Class I, Class R and Class S] Successor Fund Shares received by the JAD Trust
pursuant to paragraph 1.1. Such distribution and liquidation will be
accomplished by the transfer of the [Class A, Class C, Class I, Class R and
Class S] Successor Fund Shares then credited to the accounts of the Predecessor
Fund on the books of the Successor Fund to open accounts on the share records of
the Successor Fund in the names of the Current Shareholders and representing the
respective pro rata number of the [Class A, Class C, Class I, Class R and Class
S] Successor Fund Shares due to such shareholders. All issued and outstanding
shares of the Predecessor Fund will simultaneously be canceled on the books of
the JAD Trust. The Successor Fund shall not issue certificates representing the
[Class A, Class C, Class I, Class R and Class S] Successor Fund Shares in
connection with such exchange. Ownership of [Class A, Class C, Class I, Class R
and Class S] Successor Fund Shares will be shown on the books of the JIF Trust's
transfer agent. As soon as practicable after the Closing, the JAD Trust shall
take all steps necessary to effect a complete liquidation of the Predecessor
Fund.

2.  CLOSING AND CLOSING DATE

2.1 The Closing Date shall be July 2, 2009, or such other date as the parties
may agree to in writing. All acts taking place at the Closing shall be deemed to
take place simultaneously as of immediately after the close of business on the
Closing Date unless otherwise agreed to by the parties. The close of business on
the Closing Date shall be as of 4:00 p.m. New York Time. The Closing shall be
held at the offices of JCM, 151 Detroit Street, Denver, Colorado 80206-4805, or
at such other time and/or place as the parties may agree.

2.2 The JAD Trust shall cause Janus Services LLC (the "Transfer Agent"),
transfer agent of the Predecessor Fund, to deliver at the Closing a certificate
of an authorized officer stating that its records contain the names and
addresses of the Current Shareholders and the number, class, and percentage
ownership of outstanding shares of the Predecessor Fund owned by each such
shareholder immediately prior to the Closing. The Successor Fund shall issue and
deliver a confirmation evidencing the [Class A, Class C, Class I, Class R and
Class S] Successor Fund Shares to be credited on the Closing Date to the
Secretary of the JAD Trust or provide evidence satisfactory to the JAD Trust
that such [Class A, Class C, Class I, Class R and Class S] Successor Fund Shares
have been credited to the accounts of the Predecessor Fund on the books of the
Successor Fund. At the Closing, each party shall deliver to the other such bills
of sales, checks, assignments, share certificates, if any, receipts or other
documents as such other party or its counsel may reasonably request.

3.  REPRESENTATIONS AND WARRANTIES

3.1 The JAD Trust, on behalf of the Predecessor Fund, hereby represents and
warrants to the Successor Fund as follows:

         (i)      the JAD Trust is a trust duly organized, validly existing and
                  in good standing under the laws of the State of Delaware and
                  has full power and authority to conduct its business as
                  presently conducted;

         (ii)     the JAD Trust has full power and authority to execute, deliver
                  and carry out the terms of this Agreement on behalf of the
                  Predecessor Fund;

         (iii)    the execution and delivery of this Agreement on behalf of the
                  Predecessor Fund and the consummation of the transactions
                  contemplated hereby are duly authorized and no other
                  proceedings on the part of the JAD Trust or the shareholders
                  of the Predecessor Fund are necessary to authorize this
                  Agreement and the transactions contemplated hereby;

         (iv)     this Agreement has been duly executed by the JAD Trust on
                  behalf of the Predecessor




                  Fund and constitutes its valid and binding obligation,
                  enforceable in accordance with its terms, subject to
                  applicable bankruptcy, reorganization, insolvency, moratorium
                  and other rights affecting creditors' rights generally, and
                  general equitable principles;

         (v)      neither the execution and delivery of this Agreement by the
                  JAD Trust on behalf of the Predecessor Fund, nor the
                  consummation by the JAD Trust on behalf of the Predecessor
                  Fund of the transactions contemplated hereby, will conflict
                  with, result in a breach or violation of or constitute (or
                  with notice, lapse of time or both) a breach of or default
                  under, the JAD Trust's Amended and Restated Trust Instrument
                  ("JAD Trust Instrument") or Bylaws of the JAD Trust, as each
                  may be amended, or any statute, regulation, order, judgment or
                  decree, or any instrument, contract or other agreement to
                  which the JAD Trust is a party or by which the JAD Trust or
                  any of its assets is subject or bound;

         (vi)     the unaudited statement of assets and liabilities of the
                  Predecessor Fund as of the Closing Date, determined in
                  accordance with generally accepted accounting principles
                  consistently applied from the prior audited period, accurately
                  reflects all liabilities of the Predecessor Fund as of the
                  Closing Date;

         (vii)    no authorization, consent or approval of any governmental or
                  other public body or authority or any other party is necessary
                  for the execution and delivery of this Agreement by the JAD
                  Trust on behalf of the Predecessor Fund or the consummation of
                  any transactions contemplated hereby by the JAD Trust, other
                  than as shall be obtained at or prior to the Closing;

         (viii)   On the Closing Date, all Federal and other tax returns,
                  dividend reporting forms, and other tax-related reports of the
                  Predecessor Fund required by law to have been filed by such
                  date (including any extensions) shall have been filed and are
                  or will be correct in all material respects, and all Federal
                  and other taxes shown as due or required to be shown as due on
                  said returns and reports shall have been paid or provision
                  shall have been made for the payment thereof; and

         (ix)     For each taxable year of its operation (including the taxable
                  year which ends on the Closing Date), the Predecessor Fund has
                  met (or will meet) the requirements of Subchapter M of the
                  Internal Revenue Code of 1986, as amended (the "Code") for
                  qualification as a regulated investment company, has been (or
                  will be) eligible to and has computed (or will compute) its
                  federal income tax under Section 852 of the Code, and will
                  have distributed all of its investment company taxable income
                  and net capital gain (as defined in the Code) that has accrued
                  through the Closing Date.

3.2 The JIF Trust, on behalf of the Successor Fund, hereby represents and
warrants to the Predecessor Fund as follows:

         (i)      the JIF Trust is duly organized and existing under its Amended
                  and Restated Declaration of Trust (the "JIF Declaration of
                  Trust") and the laws of the Commonwealth of Massachusetts as a
                  voluntary association with transferable shares of beneficial
                  interest commonly referred to as a "Massachusetts business
                  trust";

         (ii)     the JIF Trust has full power and authority to execute, deliver
                  and carry out the terms of this Agreement on behalf of the
                  Successor Fund;

         (iii)    the execution and delivery of this Agreement on behalf of the
                  Successor Fund and the consummation of the transactions
                  contemplated hereby are duly authorized and no other
                  proceedings on the part of the JIF Trust or the shareholders
                  of the Successor Fund are necessary to authorize this
                  Agreement and the transactions contemplated hereby;




         (iv)     this Agreement has been duly executed by the JIF Trust on
                  behalf of the Successor Fund and constitutes its valid and
                  binding obligation, enforceable in accordance with its terms,
                  subject to applicable bankruptcy, reorganization, insolvency,
                  moratorium and other rights affecting creditors' rights
                  generally, and general equitable principles;

         (v)      neither the execution and delivery of this Agreement by the
                  JIF Trust on behalf of the Successor Fund, nor the
                  consummation by the JIF Trust on behalf of the Successor Fund
                  of the transactions contemplated hereby, will conflict with,
                  result in a breach or violation of or constitute (or with
                  notice, lapse of time or both constitute) a breach of or
                  default under, the JIF Declaration of Trust or the Amended and
                  Restated Bylaws of the JIF Trust, as each may be amended, or
                  any statute, regulation, order, judgment or decree, or any
                  instrument, contract or other agreement to which the JIF Trust
                  is a party or by which the JIF Trust or any of its assets is
                  subject or bound;

         (vi)     the net asset value per share of a [Class A, Class C, Class I,
                  Class R and Class S] Successor Fund Share as of the close of
                  regular session trading on the New York Stock Exchange on the
                  Closing Date reflects all liabilities of the Successor Fund as
                  of that time and date;

         (vii)    no authorization, consent or approval of any governmental or
                  other public body or authority or any other party is necessary
                  for the execution and delivery of this Agreement by the JIF
                  Trust on behalf of the Successor Fund or the consummation of
                  any transactions contemplated hereby by the JIF Trust, other
                  than as shall be obtained at or prior to the Closing;

         (viii)   On the Closing Date, all Federal and other tax returns,
                  dividend reporting forms, and other tax-related reports of the
                  Successor Fund required by law to have been filed by such date
                  (including any extensions) shall have been filed and are or
                  will be correct in all material respects, and all Federal and
                  other taxes shown as due or required to be shown as due on
                  said returns and reports shall have been paid or provision
                  shall have been made for the payment thereof; and

         (ix)     For each taxable year of its operation (including the taxable
                  year which includes the Closing Date), the Successor Fund has
                  met (or will meet) the requirements of Subchapter M of the
                  Code for qualification as a regulated investment company, has
                  been (or will be) eligible to and has computed (or will
                  compute) its federal income tax under Section 852 of the Code,
                  and has distributed all of its investment company taxable
                  income and net capital gain (as defined in the Code) for
                  periods ending prior to the Closing Date.

4.  CONDITIONS PRECEDENT

4.1 The obligations of the JAD Trust on behalf of each Predecessor Fund and the
JIF Trust on behalf of each Successor Fund to effectuate the Reorganization
shall be subject to the satisfaction of the following conditions with respect to
such Reorganization:

         (i)      The JIF Trust shall have filed with the Securities and
                  Exchange Commission (the "Commission") a registration
                  statement on Form N-14 under the Securities Act of 1933, as
                  amended (the "Securities Act") and such amendment or
                  amendments thereto as are determined by the Board of Trustees
                  of the JIF Trust and/or JCM to be necessary and appropriate to
                  effect the registration of the [Class A, Class C, Class I,
                  Class R and Class S] Successor Fund Shares (the "Registration
                  Statement"), and the Registration Statement shall have become
                  effective, and no stop-order suspending the effectiveness of
                  the Registration Statement shall have been issued, and no
                  proceeding for that purpose shall have been initiated or
                  threatened by the Commission (and not withdrawn or
                  terminated);

         (ii)     The applicable [Class A, Class C, Class I, Class R and Class
                  S] Successor Fund Shares



                  shall have been duly qualified for offering to the public in
                  all states in which such qualification is required for
                  consummation of the transactions contemplated hereunder;

         (iii)    All representations and warranties of the JAD Trust on behalf
                  of the Predecessor Fund contained in this Agreement shall be
                  true and correct in all material respects as of the date
                  hereof and as of the Closing, with the same force and effect
                  as if then made, and the JIF Trust on behalf of the Successor
                  Fund shall have received a certificate of an officer of the
                  JAD Trust acting on behalf of the Predecessor Fund to that
                  effect in form and substance reasonably satisfactory to the
                  JIF Trust on behalf of the Successor Fund;

         (iv)     All representations and warranties of the JIF Trust on behalf
                  of the Successor Fund contained in this Agreement shall be
                  true and correct in all material respects as of the date
                  hereof and as of the Closing, with the same force and effect
                  as if then made, and the JAD Trust on behalf of the
                  Predecessor Fund shall have received a certificate of an
                  officer of the JIF Trust acting on behalf of the Successor
                  Fund to that effect in form and substance reasonably
                  satisfactory to the JAD Trust on behalf of the Predecessor
                  Fund;

         (v)      The JIF Trust and the JAD Trust shall have received the
                  opinion of Dechert LLP addressed to each of them substantially
                  to the effect that, based upon certain facts, assumptions, and
                  representations, the transaction contemplated by this
                  Agreement shall constitute a tax-free reorganization for
                  Federal income tax purposes. The delivery of such opinion is
                  conditioned upon receipt by Dechert LLP of representations it
                  shall request of JCM, the JIF Trust and the JAD Trust.
                  Notwithstanding anything herein to the contrary, neither the
                  JIF Trust nor the JAD Trust may waive the condition set forth
                  in this paragraph;

         (vi)     Unless otherwise determined by the officers of the Predecessor
                  Fund, the Predecessor Fund shall have declared and paid a
                  distribution or distributions prior to the Closing that,
                  together with all previous distributions, shall have the
                  effect of distributing to its shareholders (i) all of its
                  investment company taxable income and all of its net realized
                  capital gains, if any, for the period from the close of its
                  last fiscal year to 4:00 p.m. New York Time on the Closing;
                  and (ii) any undistributed investment company taxable income
                  and net realized capital gains from any period to the extent
                  not otherwise already distributed; and

         (vii)    The conditions precedent to (A) each of the Preexisting Fund
                  Reorganizations and (B) each of the Shell Reorganizations
                  shall have been satisfied, unless the Board of Trustees of the
                  JAD Trust and/or the JIF Trust shall have waived this
                  condition and deemed it to be in the best interests of the
                  Predecessor Fund that the Reorganization should proceed.

5.  EXPENSES

All of the expenses and costs of the Reorganization and the transactions
contemplated thereby shall be borne by JCM.

6.  ENTIRE AGREEMENT

The JAD Trust agrees on behalf of the Predecessor Fund and the JIF Trust agrees
on behalf of the Successor Fund that this Agreement constitutes the entire
agreement between the parties.

7.  TERMINATION

This Agreement and the transactions contemplated hereby may be terminated and
abandoned by resolution of the Board of Trustees of the JIF Trust or the Board
of Trustees of the JAD Trust, at any time prior to the Closing Date, if
circumstances should develop that, in the opinion of the Board of Trustees of
the JIF Trust or the Board of Trustees of the JAD Trust, make proceeding with
the Agreement inadvisable.



8.  AMENDMENTS

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

9.  NOTICES

Any notice, report, statement or demand required or permitted by any provisions
of this Agreement shall be in writing and shall be given by prepaid telegraph,
telecopy or certified mail addressed to the parties hereto at their principal
place of business.

10.  HEADINGS; COUNTERPARTS; GOVERNING LAW; ASSIGNMENT; LIMITATION OF LIABILITY

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

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

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

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

10.5 It is expressly agreed that the obligations of each of the JIF Trust and
JAD Trust hereunder shall not be binding upon any of the Trustees, shareholders,
nominees, officers, agents or employees of each trust personally, but shall bind
only the trust property of the trusts, as provided in the JAD Trust Instrument
and the JIF Declaration of Trust, respectively, of each trust. The execution and
delivery by such officers of the Trusts shall not be deemed to have been made by
any of them individually or to impose any liability on any of them personally,
but shall bind only the trust property of each Trust as provided in the JAD
Trust Instrument and the JIF Declaration of Trust, respectively. The JAD Trust
is a series company with multiple series and has entered into this Agreement on
behalf of the Predecessor Fund. The JIF Trust is a series company with multiple
series and has entered into this Agreement on behalf of the Successor Fund.

10.6 The sole remedy of a party hereto for a breach of any representation or
warranty made in this Agreement by the other party shall be an election by the
non-breaching party not to complete the transactions contemplated herein.






IN WITNESS WHEREOF, the undersigned has caused this Agreement to be executed as
of the date set forth above.


                                       JANUS ADVISER SERIES
ATTEST                                 For and on behalf of the Predecessor Fund

Name:                                  By:
     --------------------------            -------------------------------------
                                       Name:
                                       Title:

                                       JANUS INVESTMENT FUND
ATTEST                                 For and on behalf of the Successor Fund

Name:                                  By:
     --------------------------            -------------------------------------
                                       Name:
                                       Title:

ATTEST                                 JANUS CAPITAL MANAGEMENT LLC

Name:                                  By:
     --------------------------            -------------------------------------
                                       Name:
                                       Title: