UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549


                                    FORM 8-K


                                 CURRENT REPORT
                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


Date of report (Date of earliest event reported):  March 30, 2006

                 Dean Witter Diversified Futures Fund II L.P.
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            (Exact Name of Registrant as Specified in Its Charter)

        Delaware                       0-17446                  13-3490286
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(State or Other Jurisdiction   (Commission File Number)       (IRS Employer
of Incorporation)                                           Identification No.)


c/o Demeter Management Corporation, 330 Madison Avenue, 8th Floor, New York,
NY 10017
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(Address of Principal Executive Offices)                       (Zip Code)

Registrant's telephone number, including area code:   (212) 905-2700

                                 Not Applicable
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        (Former Name or Former Address, if Changed Since Last Report)

   Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

   |_| Written communications pursuant to Rule 425 under the Securities Act (17
CFR 230.425)

   |_| Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
CFR 240.14a-12)

   |_| Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))

   |_| Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))




Item 5.02. Departure of Directors or Principal Officers; Election of Directors;
           Appointment of Officers.
           ------------------------

   (b) On March 27, 2006, the Registrant filed a Form 8-K stating that Bruce D.
Simon would serve as a director of Demeter Management Corporation ("Demeter"),
the general partner of the Registrant. On March 30, 2006, it was determined that
Bruce D. Simon would not serve as a director of Demeter.

   (c) Effective May 1, 2006, Walter Davis will serve as President of Demeter
and Chairman of the Board of Directors of Demeter, subject to approval by and
registration with the National Futures Association.

   Walter Davis, age 41, is an Executive Director at Morgan Stanley and the
Director of Morgan Stanley's Managed Futures Department. Prior to joining Morgan
Stanley in 1999, Mr. Davis worked for Chase Manhattan Bank's Alternative
Investment Group. Throughout his career, Mr. Davis has been involved with the
development, management and marketing of a diverse array of commodity pools,
hedge funds and other alternative investment funds. Mr. Davis received an MBA in
Finance and International Business from the Columbia University Graduate School
of Business in 1992 and a BA in Economics from the University of the South in
1987.

   (d) Effective May 1, 2006, the following individuals will serve as directors
of Demeter, subject to approval by and registration with the National Futures
Association: Walter Davis and Andy Saperstein.

      Andy Saperstein joined Morgan Stanley from Merrill Lynch to become the
Chief Operating Officer of National Sales at Morgan Stanley. Mr. Saperstein was
the first Vice President and Chief Operating Officer of the Direct Division, as
well as a member of the Global Private Client Executive Committee at Merrill
Lynch. Mr. Saperstein was responsible for the oversight of the online brokerage
unit and the Financial Advisory Center, including the Retail Client Relationship
Management group, the Services, Operations and Technology Group, the Client
Acquisition team, and the Business Development and Analysis team. The Direct
Division Advisory Center provided financial advice and guidance and account
services to over 700,000 Merrill Lynch client households. Mr. Saperstein began
his career at Merrill Lynch in November 2001. Mr. Saperstein joined Merrill
Lynch from McKinsey and Company, where he was a partner in the Financial
Institutions group, co-leader of the North American Asset Management and
Brokerage Practice and co-leader of North American Recruiting, working closely
with Merrill Lynch as an advisor since 1993. Mr. Saperstein graduated cum laude
from Harvard Law School and summa cum laude from The Wharton School/College of
Arts and Sciences at the University of Pennsylvania with a dual degree in
Economics and Finance.



                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                DEAN WITTER DIVERSIFIED FUTURES FUND II L.P.

Date:  April 4, 2006            By:   Demeter Management Corporation
                                      as General Partner


                                 /s/ Jeffrey A. Rothman
                                ----------------------------------------------
                                Name:   Jeffrey A. Rothman
                                Title:  President