Document:

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                                                               Exhibit 4(eeeeee)

                                  AMENDMENT TO

                              JANUS INVESTMENT FUND

                             SUB-ADVISORY AGREEMENT

                            JANUS MID CAP VALUE FUND

         THIS AMENDMENT is made this 14th day of June, 2006, between JANUS
CAPITAL MANAGEMENT LLC, a Delaware limited liability company ("Janus"), and
PERKINS, WOLF, MCDONNELL AND COMPANY, LLC a Delaware limited liability company
("PWM").

                               W I T N E S S E T H

         WHEREAS, Janus and PWM are parties to a Sub-Advisory Agreement on
behalf of Janus Mid Cap Value Fund (the "Fund"), a series of Janus Investment
Fund, a Massachusetts business trust (the "Trust"), dated July 1, 2004 (the
"Agreement");

         WHEREAS, the parties desire to amend the Agreement as set forth in
greater detail below;

         WHEREAS, pursuant to Section 10 of the Agreement, any amendment to the
Agreement is subject to approval by (i) a majority of the Trustees, including a
majority of the Trustees who are not interested persons (as that phrase is
defined in Section 2(a)(19) of the 1940 Act) of the Trust or Janus, PWM or their
affiliates, and (ii) if required by applicable law, by the affirmative vote of a
majority of the outstanding voting securities of the Fund (as that phrase is
defined in Section 2(a)(42) of the 1940 Act);

         WHEREAS, the parties have obtained Trustee approval as set forth above,
and the parties agree that a shareholder vote is not required to amend the
Agreement; and

         WHEREAS, the effective date of the termination of the Agreement has
been changed to February 1, 2007;

         NOW, THEREFORE, in consideration of the premises and of the mutual
agreements set forth below, the parties agree to amend the Agreement as follows:

         1. Section 7 of the Agreement shall be deleted in its entirety and
replaced with the following:

         "7. Term. This Agreement shall become effective as of the date first
         set forth above and shall continue in effect until February 1, 2007,
         unless sooner terminated in accordance with its terms, and shall
         continue in effect from year to year thereafter only so long as such
         continuance is

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         specifically approved at least annually by (a) the vote of a majority
         of the Trustees of the Trust who are not parties hereto or interested
         persons of the Trust, Janus or PWM, cast in person at a meeting called
         for the purpose of voting on the approval of the terms of such renewal,
         and (b) either the Trustees of the Trust or the affirmative vote of a
         majority of the outstanding voting securities of the Fund. The annual
         approvals provided for herein shall be effective to continue this
         Agreement from year to year if given within a period beginning not more
         than ninety (90) days prior to February 1 of each applicable year,
         notwithstanding the fact that more than three hundred sixty-five (365)
         days may have elapsed since the date on which such approval was last
         given."

         2. The parties acknowledge that the Agreement, as amended, remains in
full force and effect as of the date of this Amendment, and that this Amendment,
together with the Agreement and any prior amendments, contains the entire
understanding and the full and complete agreement of the parties and supercedes
and replaces any prior understandings and agreements among the parties
respecting the subject matter hereof.

         3. This Amendment may be contemporaneously executed in two or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties have caused their duly authorized
officers to execute this Amendment as of the date first above written.

                                          JANUS CAPITAL MANAGEMENT LLC

                                          By:   /s/ David R. Martin
                                                -------------------------------
                                                David R. Martin
                                                Executive Vice President and
                                                Chief Financial Officer

                                          PERKINS, WOLF, MCDONNELL AND
                                          COMPANY, LLC

                                          By:    /s/ Gregory E. Wolf
                                                 -------------------------------
                                          Name:  Gregory E. Wolf
                                                 -------------------------------
                                          Title: COO
                                                 -------------------------------<PAGE>

                                                               Exhibit 4(ffffff)

                                  AMENDMENT TO

                              JANUS INVESTMENT FUND

                             SUB-ADVISORY AGREEMENT

                           JANUS SMALL CAP VALUE FUND

         THIS AMENDMENT is made this 14th day of June, 2006, between JANUS
CAPITAL MANAGEMENT LLC, a Delaware limited liability company ("Janus"), and
PERKINS, WOLF, MCDONNELL AND COMPANY, LLC a Delaware limited liability company
("PWM").

                               W I T N E S S E T H

         WHEREAS, Janus and PWM are parties to a Sub-Advisory Agreement on
behalf of Janus Small Cap Value Fund (the "Fund"), a series of Janus Investment
Fund, a Massachusetts business trust (the "Trust"), dated July 1, 2004 (the
"Agreement");

         WHEREAS, the parties desire to amend the Agreement as set forth in
greater detail below;

         WHEREAS, pursuant to Section 10 of the Agreement, any amendment to the
Agreement is subject to approval by (i) a majority of the Trustees, including a
majority of the Trustees who are not interested persons (as that phrase is
defined in Section 2(a)(19) of the 1940 Act) of the Trust or Janus, PWM or their
affiliates, and (ii) if required by applicable law, by the affirmative vote of a
majority of the outstanding voting securities of the Fund (as that phrase is
defined in Section 2(a)(42) of the 1940 Act);

         WHEREAS, the parties have obtained Trustee approval as set forth above,
and the parties agree that a shareholder vote is not required to amend the
Agreement; and

         WHEREAS, the effective date of the termination of the Agreement has
been changed to February 1, 2007;

         NOW, THEREFORE, in consideration of the premises and of the mutual
agreements set forth below, the parties agree to amend the Agreement as follows:

         1. Section 7 of the Agreement shall be deleted in its entirety and
replaced with the following:

         "7. Term. This Agreement shall become effective as of the date first
         set forth above and shall continue in effect until February 1, 2007,
         unless sooner terminated in accordance with its terms, and shall
         continue in effect from year to year thereafter only so long as such
         continuance is

<PAGE>

         specifically approved at least annually by (a) the vote of a majority
         of the Trustees of the Trust who are not parties hereto or interested
         persons of the Trust, Janus or PWM, cast in person at a meeting called
         for the purpose of voting on the approval of the terms of such renewal,
         and (b) either the Trustees of the Trust or the affirmative vote of a
         majority of the outstanding voting securities of the Fund. The annual
         approvals provided for herein shall be effective to continue this
         Agreement from year to year if given within a period beginning not more
         than ninety (90) days prior to February 1 of each applicable year,
         notwithstanding the fact that more than three hundred sixty-five (365)
         days may have elapsed since the date on which such approval was last
         given."

         2. The parties acknowledge that the Agreement, as amended, remains in
full force and effect as of the date of this Amendment, and that this Amendment,
together with the Agreement and any prior amendments, contains the entire
understanding and the full and complete agreement of the parties and supercedes
and replaces any prior understandings and agreements among the parties
respecting the subject matter hereof.

         3. This Amendment may be contemporaneously executed in two or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties have caused their duly authorized
officers to execute this Amendment as of the date first above written.

                                       JANUS CAPITAL MANAGEMENT LLC

                                       By:   /s/ David R. Martin
                                             -----------------------------------
                                             David R. Martin
                                             Executive Vice President and
                                             Chief Financial Officer

                                       PERKINS, WOLF, MCDONNELL AND
                                       COMPANY, LLC

                                       By:   /s/ Gregory E. Wolf
                                             -----------------------------------
                                       Name: Gregory E. Wolf
                                             -----------------------------------
                                       Title: COO
                                             -----------------------------------<PAGE>

                                                               Exhibit 4(gggggg)

                                  AMENDMENT TO

                              JANUS INVESTMENT FUND

                          INVESTMENT ADVISORY AGREEMENT

                             JANUS CORE EQUITY FUND

         THIS AMENDMENT is made this 30th day of June, 2006, between JANUS
INVESTMENT FUND, a Massachusetts business trust (the "Trust"), and JANUS CAPITAL
MANAGEMENT LLC, a Delaware limited liability company ("JCM").

                               W I T N E S S E T H

         WHEREAS, the Trust and JCM are parties to an Investment Advisory
Agreement on behalf of Janus Core Equity Fund (the "Fund"), dated July 1, 2004,
as amended February 1, 2006 (the "Agreement");

         WHEREAS, the parties desire to amend the Agreement as set forth in
greater detail below;

         WHEREAS, pursuant to Section 11 of the Agreement, any amendment to the
Agreement is subject to approval (i) by a majority of the Trustees, including a
majority of the Trustees who are not interested persons (as that phrase is
defined in Section 2(a)(19) of the Investment Company Act of 1940, as amended
(the "1940 Act")) of any party to the Agreement, and (ii) if required by
applicable law, by the affirmative vote of a majority of the outstanding voting
securities of the Fund (as that phrase is defined in Section 2(a)(42) of the
1940 Act);

         WHEREAS, the parties have obtained Trustee approval as set forth above,
and the parties agree that a shareholder vote is not required to amend the
Agreement; and

         WHEREAS, the name of Janus Core Equity Fund has been changed to Janus
Fundamental Equity Fund;

         NOW, THEREFORE, in consideration of the premises and of the mutual
agreements set forth below, the parties agree to amend the Agreement as follows:

         1. All references to "Janus Core Equity Fund" shall be replaced with
"Janus Fundamental Equity Fund."

         2. The parties acknowledge that the Agreement, as amended, remains in
full force and effect as of the date of this Amendment, and that this Amendment,
together with the Agreement and any prior amendments, contains the entire
understanding and the full and complete agreement of the parties and supercedes
and replaces any prior understandings and agreements among the parties
respecting the subject matter hereof.

<PAGE>

         3. This Amendment may be contemporaneously executed in two or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties have caused their duly authorized
officers to execute this Amendment as of the date first above written.

                                             JANUS CAPITAL MANAGEMENT LLC

                                             By: /s/ David R. Martin
                                                 -------------------------------
                                                 David R. Martin
                                                 Chief Financial Officer and
                                                 Executive Vice President

                                             JANUS INVESTMENT FUND

                                             By: /s/ Stephanie Grauerholz-Lofton
                                                 -------------------------------
                                                 Stephanie Grauerholz-Lofton
                                                 Vice President and Secretary

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