EXHIBIT d(17)

                 AMENDMENT TO SUB-INVESTMENT ADVISORY AGREEMENT

                          Effective as of July 22, 2002

Credit Suisse Asset Management Limited
Beaufort House
15 St. Botolph Street
London EC3A 7JJ

Ladies and Gentlemen:

                  This amends the Sub-Investment Advisory Agreement (the
"Sub-Advisory Agreement") dated as of May 1, 2002 by and among Credit Suisse
Trust, on behalf of the International Focus Portfolio, a duly organized series
thereof (the "Portfolio"), Credit Suisse Asset Management, LLC ("CSAM") and
Credit Suisse Asset Management Limited (the "Sub-Adviser"). Capitalized terms
used herein but not otherwise defined shall have the meanings set forth in the
Sub-Advisory Agreement.

                  In consideration of the covenants and agreements expressed
herein, the parties agree as follows:

                  1.       Effective July 22, 2002, the Sub-Advisory Agreement
is hereby amended and restated in its entirety as follows:

                                   "SCHEDULE A

                  CSAM will pay the Sub-Adviser a fee of $250,000 per annum (the
         "Total Fee"), one quarter of which shall be payable in U.S. dollars in
         arrears on the last business day of each calendar quarter. The fee for
         the first period during which this Agreement is in effect shall be
         pro-rated for the portion of the calendar quarter that the Agreement is
         in effect. The Total Fee shall be an aggregate fee paid for services
         rendered with respect to this Portfolio and such other Credit Suisse
         Funds for which the Sub-Adviser has been appointed as such and which
         CSAM and the Sub-Adviser agree will be governed by this fee schedule.

                  The portion of the Total Fee allocable with respect to the
         Portfolio for any calendar quarter or portion thereof is equal to the
         product of (a) the Total Fee and (b) a fraction: (i) the numerator of
         which is the average monthly net assets of the Portfolio during such
         calendar quarter or portion thereof and (ii) the denominator of which
         is the aggregate average monthly net assets of the Portfolio and other
         registered investment companies for which the Sub-Adviser has been
         appointed as such during such calendar quarter or portion thereof
         (rounded to the nearest thousand dollars). "

                  2.       The parties agree that the provisions of the
Sub-Advisory Agreement, except as amended by this Amendment, shall continue in
full force and effect.



                  Please confirm that the foregoing is in accordance with your
understanding by indicating your acceptance hereof at the place below indicated,
whereupon it shall become a binding agreement between us.

                              Very truly yours,

                              CREDIT SUISSE ASSET MANAGEMENT, LLC

                              By: /s/Hal Liebes
                              Name:  Hal Liebes
                              Title: Managing Director

                              CREDIT SUISSE TRUST on behalf of its INTERNATIONAL
                              FOCUS PORTFOLIO

                              By: /s/Hal Liebes
                              Name:  Hal Liebes
                              Title: Vice President and Secretary

CREDIT SUISSE ASSET
MANAGEMENT LIMITED

By: /s/S. Houghton G. Wellman
Name:  S. Houghton G. Wellman
Title: Director (Legal) Managing Director

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