DEAN WITTER PRINCIPAL SECURED FUTURES FUND LP
S-1, 1997-03-27
COMMODITY CONTRACTS BROKERS & DEALERS
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<PAGE>
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 27, 1997
                                                        REGISTRATION NO.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              -------------------
 
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                              -------------------
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
          (Exact name of registrant as specified in charter document)
 
<TABLE>
<S>                   <C>                          <C>
      DELAWARE                   6793                   13-3589337
     (State of             (Primary Standard         (I.R.S. Employer
    Organization              Industrial              Identification
     of Issuer)       Classification Code Number)         Number)
</TABLE>
 
                              -------------------
                       Two World Trade Center, 62nd Floor
                            New York, New York 10048
                                 (212) 392-8899
 
         (Address, including zip code, and telephone number, including
            area code, of registrant's principal executive offices)
 
                                 Mark J. Hawley
                         DEMETER MANAGEMENT CORPORATION
                       Two World Trade Center, 62nd Floor
                            New York, New York 10048
                                 (212) 392-8899
 
           (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)
                              -------------------
                          COPIES OF COMMUNICATIONS TO:
 
<TABLE>
<S>                                 <C>
       Edwin L. Lyon, Esq.              C. Robert Paul, III, Esq.
  Cadwalader, Wickersham & Taft         Dean Witter Reynolds Inc.
 1333 New Hampshire Avenue, N.W.            130 Liberty Street
      Washington, D.C. 20036             New York, New York 10006
          (202) 862-2200                      (212) 392-7791
</TABLE>
 
                              -------------------
 
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
AS SOON AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT.
                              -------------------
 
    If  any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to  Rule 415 under the Securities Act  of
1933 check the following box. /X/
 
    If  this Form  is filed  to register  additional securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration statement  number  of  the  earlier
effective registration statement for the same offering. / /
 
    If  this Form  is a post-effective  amendment filed pursuant  to Rule 462(c)
under the Securities Act,  check the following box  and list the Securities  Act
registration  statement number  of the earlier  effective registration statement
for the same offering. / /
 
    If delivery of the prospectus is expected  to be made pursuant to Rule  434,
please check the following box. / /
                              -------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                     PROPOSED
                                                                      MAXIMUM
                                                                     AGGREGATE        AMOUNT OF
    TITLE OF EACH CLASS OF         AMOUNT TO     OFFERING PRICE      OFFERING       REGISTRATION
 SECURITIES TO BE REGISTERED     BE REGISTERED     PER UNIT(1)       PRICE(1)          FEE(1)
<S>                             <C>              <C>              <C>              <C>
Units of Limited Partnership
  Interest....................   50,000 Units        $2,223        $111,150,000        $33,682
</TABLE>
 
(1) Offering price and registration fee based on approximate Net Asset Value Per
    Unit on March 14, 1997, in accordance with Rule 457(d).
The  registrant hereby amends this Registration  Statement on such date or dates
as may be necessary to delay its effective date until the registrant shall  file
a  further amendment which specifically  states that this Registration Statement
shall thereafter  become  effective  in  accordance with  Section  8(a)  of  the
Securities  Act  of  1933  or  until  the  Registration  Statement  shall become
effective on such date as the Commission, acting pursuant to said Section  8(a),
may determine.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                             CROSS REFERENCE SHEET
 
<TABLE>
<CAPTION>
ITEM NO.                    REGISTRATION ITEM                                 LOCATION IN PROSPECTUS
- ---------  ---------------------------------------------------  ---------------------------------------------------
<C>        <S>                                                  <C>
       1.  Forepart of the Registration Statement and Outside
            Front Cover Page of Prospectus....................  Facing Page; Front Cover Pages.
       2.  Inside Front and Outside Back Cover Pages of
            Prospectus........................................  Inside Front Cover Page; Table of Contents.
       3.  Summary Information, Risk Factors, and Ratio of
            Earnings to Fixed Charges.........................  Summary of the Prospectus; Risk Factors;
                                                                 Description of Charges to the Partnership;
                                                                 Investment Program, Use of Proceeds and Trading
                                                                 Policies; The General Partner; The Commodity
                                                                 Broker.
       4.  Use of Proceeds....................................  Investment Program, Use of Proceeds and Trading
                                                                 Policies.
       5.  Determination of Offering Price....................  Plan of Distribution.
       6.  Dilution...........................................  Not Applicable.
       7.  Selling Security Holders...........................  Not Applicable.
       8.  Plan of Distribution...............................  Plan of Distribution.
       9.  Description of Securities to be Registered.........  The Limited Partnership Agreement.
      10.  Interests of Named Experts and Counsel.............  Not Applicable.
      11.  Information with Respect to the Registrant
           (a) Description of Business........................  Summary of the Prospectus; Risk Factors; In-
                                                                 vestment Program, Use of Proceeds and Trading
                                                                 Policies; General Description of Trading
                                                                 Approaches; The Trading Advisor; The Futures,
                                                                 Options and Forward Markets; The Limited
                                                                 Partnership Agreement.
           (b) Description of Property........................  Not Applicable.
           (c) Legal Proceedings..............................  Certain Litigation; The Trading Advisor.
           (d) Market Price of and Dividends on the
               Registrant's Common Equity and Related
               Stockholder Matters............................  Risk Factors.
           (e) Financial Statements...........................  Independent Auditors' Reports.
           (f) Selected Financial Data........................  Selected Financial Data.
           (g) Supplementary Financial Information............  Selected Financial Data.
           (h) Management's Discussion and Analysis
               of Financial Condition and Results of
               Operations.....................................  Management's Discussion and Analysis of Financial
                                                                 Condition and Results of Operations.
           (i) Changes in and Disagreements with
              Accountants on Accounting and Financial
              Disclosure......................................  Not Applicable.
           (j) Directors and Executive Officers...............  The General Partner.
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
ITEM NO.                    REGISTRATION ITEM                                 LOCATION IN PROSPECTUS
- ---------  ---------------------------------------------------  ---------------------------------------------------
<C>        <S>                                                  <C>
           (k) Executive Compensation.........................  Summary of the Prospectus; Conflicts of Interest;
                                                                 Fiduciary Responsibility; Description of Charges
                                                                 to the Partnership; Risk Factors; The Trading
                                                                 Advisor; The General Partner; The Commodity
                                                                 Broker.
           (l) Security Ownership of Certain Beneficial
              Owners and Management...........................  Capitalization; The General Partner; The Trading
                                                                 Advisor; Independent Auditors' Reports.
           (m) Certain Relationships and Related
                Transactions..................................  Summary of the Prospectus; Conflicts of Interest;
                                                                 Fiduciary Responsibility; Description of Charges
                                                                 to the Partnership; Risk Factors; The Trading
                                                                 Advisor; The General Partner; The Commodity
                                                                 Broker.
      12.  Disclosure of Commission Position on In-
            demnification for Securities Act Liabilities......  Fiduciary Responsibility.
</TABLE>
<PAGE>
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
                  SUBJECT TO COMPLETION; DATED MARCH 27, 1997
 
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                  50,000 UNITS OF LIMITED PARTNERSHIP INTEREST
                                ----------------
 
    Dean Witter Portfolio Strategy Fund L.P. (the "Partnership") is a commodity
pool limited partnership formed under the laws of the State of Delaware which is
engaged primarily in speculative trading of futures and forward contracts,
options on futures contracts and on physical commodities, and other commodity
interests, including foreign currencies, financial instruments, precious and
industrial metals, energy products, and agriculturals, as more fully described
herein (hereinafter referred to collectively as "futures interests"). Demeter
Management Corporation, the general partner of the Partnership (the "General
Partner"), has retained John W. Henry & Company, Inc. (the "Trading Advisor"),
to engage in futures interests trading on behalf of the Partnership. The
Partnership commenced futures interests trading on February 1, 1991.
 
    Units of limited partnership interest in the Partnership ("Units") are being
offered for sale at a price equal to 100% of the Net Asset Value per Unit (the
total assets of the Partnership less its total liabilities allocated to capital
accounts represented by Units divided by the aggregate number of Units
outstanding) as of the close of business on the last day of the month
immediately preceding the date of the Closing, as described below. Units will be
issued at a closing (the "Closing"), which is currently scheduled to be held as
of October 1, 1997; provided, however, that the General Partner may at its
discretion hold the Closing as of the first business day of any month during the
Offering Period (as defined herein). Units are being offered and sold by the
Partnership through Dean Witter Reynolds Inc. ("DWR") on a best efforts basis.
There is no minimum number of Units which must be sold for this offering to
close.
 
    THESE ARE SPECULATIVE SECURITIES AND INVOLVE A HIGH DEGREE OF RISK. THESE
SECURITIES ARE SUITABLE FOR INVESTMENT ONLY BY A PERSON WHO CAN AFFORD TO LOSE
HIS ENTIRE INVESTMENT. SEE "SUMMARY OF THE PROSPECTUS-- INVESTMENT REQUIREMENTS"
(PAGE 1), "RISK FACTORS" (PAGE 13), AND "CONFLICTS OF INTEREST" (PAGE 20).
 
    An investment in the Partnership involves significant risks, including the
following:
 
       -Futures interests trading is speculative and volatile. The
        Partnership's trading has been volatile. Such volatility could
        result in an investor losing all or a substantial part of his
        investment.
 
       -The Partnership is subject to substantial charges by the Trading
        Advisor and DWR. The Partnership must earn estimated annual net
        trading profits of 5.71% of its average annual Net Assets (after
        taking into account estimated interest income based upon current
        rates of 5%) in order to avoid depletion or exhaustion of its
        assets. Investors should see "Break Even Analysis" on page 39 for
        the effect of redemption charges which are not included in the
        above figures.
 
       -No secondary market for Units exists. Units may be redeemed
        monthly only after the end of the sixth month following the
        closing at which an investor first became a Limited Partner. A
        Unit redeemed at or prior to the end of the twenty-fourth month
        following the closing at which the Unit was issued may be subject
        to redemption charges. Certain market conditions may result in
        possible delays in, or inability to pay, redemptions.
 
       -Conflicts of interest between and among the Trading Advisor, the
        General Partner, DWR, their affiliates and the Partnership may
        adversely affect the trading performance of the Partnership. See
        "Conflicts of Interest."
 
       -The Partnership's profitability is largely dependent on the
        performance of the Trading Advisor.
 
       -While the General Partner does not intend to make any
        distributions, profits earned in any year will result in taxable
        income to investors.
 
<TABLE>
<CAPTION>
                                                        INITIAL PRICE
                                                             TO                 SELLING          PROCEEDS TO THE
                                                           PUBLIC             COMMISSIONS          PARTNERSHIP
<S>                                                    <C>              <C>                      <C>
Per Unit                                                     (1)                  (1)                (2)(3)
Total Maximum                                                (1)                  (1)                (2)(3)
</TABLE>
 
COVER PAGE CONTINUED AND NOTES TO THE ABOVE TABLE ON PAGE (i).
 
    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
    THE COMMODITY FUTURES TRADING COMMISSION HAS NOT PASSED UPON THE MERITS OF
PARTICIPATING IN THIS POOL NOR HAS THE COMMISSION PASSED UPON THE ADEQUACY OR
ACCURACY OF THIS DISCLOSURE DOCUMENT.
 
                           DEAN WITTER REYNOLDS INC.
 
- --------------------------------------------------------------------------------
 
              THE DATE OF THIS PROSPECTUS IS              , 1997.
<PAGE>
    The minimum investment for most subscribers is $5,000, or $2,000 in the case
of an Individual Retirement Account.
 
    Subject to redemption charges during the 24 months following the issuance of
a Unit and certain other restrictions, Units may be redeemed as of the end of
any month. See "Redemptions."
 
    The Partnership is not a mutual fund or any other type of investment company
within the meaning of the Investment Company Act of 1940, as amended, and is not
subject to regulation thereunder.
 
NOTES TO TABLE ON FRONT COVER PAGE
 
(1) Units are offered for sale at the Closing at a price per Unit equal to 100%
    of the Net Asset Value of a Unit as of the close of business on the last day
    of the month immediately preceding the date of the Closing. No underwriting
    compensation or selling commissions will be paid out of the proceeds of this
    offering. However, except as provided below, employees of DWR will receive
    from DWR (payable solely from its own funds) a gross sales credit equal to
    3% of the Net Asset Value per Unit as of the Closing for each Unit sold by
    them and issued at the Closing. Commencing with the eighth month following
    the Closing and continuing until the Partnership terminates, an employee of
    DWR who sold such Unit and who is properly registered with the Commodity
    Futures Trading Commission ("CFTC") and has passed the Series 3 or Series 31
    examination or was "grandfathered" as an associated person qualified to do
    commodity brokerage also will receive from DWR (payable solely from its own
    funds) up to 35% of the brokerage commissions that are attributable to
    outstanding Units sold by them and received by DWR as commodity broker for
    the Partnership. During the period February 1991 through December 1996, such
    compensation resulted in average annual payments of $17 per Unit. Such
    continuing compensation is to be paid in recognition of the employee's
    continuing services to the Limited Partners. For a description of all such
    continuing services, see "Plan of Distribution." The Selling Agreement among
    DWR, the General Partner, the Trading Advisor and the Partnership provides
    that such compensation may only be paid by DWR as long as such services are
    provided. Such continuing compensation paid by DWR may be deemed to be
    underwriting compensation. No part of such compensation shall be paid by the
    Partnership and, accordingly, Net Assets will not be reduced as a result of
    such compensation. No person will receive the continuing compensation
    described above who is not a DWR employee at the time of receipt of payment.
 
    DWR will not pay to its employees the 3% gross sales credit described above
    with respect to Units purchased by a subscriber with the proceeds of a
    redemption on or after June 30, 1996 of all or a portion of such
    subscriber's interest in any other commodity pool for which the General
    Partner serves as the general partner and commodity pool operator. Such
    employees will receive the continuing payments with respect to brokerage
    commissions which are charged to the Partnership which are comparable to the
    payments which were received by such employees with respect to such other
    commodity pools.
 
    DWR will be indemnified by the Partnership against certain civil
    liabilities.
 
(2) Units are offered for sale from the date hereof, unless sooner terminated,
    to the date of the Closing, which shall be held during the period from the
    date of this Prospectus through October 10, 1997 (the "Offering Period").
    The General Partner shall also have the discretion to terminate the offering
    of Units at any time during the Offering Period. Subscription amounts
    received during the Offering Period and not immediately rejected by the
    General Partner will be held in escrow at The Chase Manhattan Bank, New
    York, New York (the "Escrow Agent") until the Closing or until earlier
    rejection by the General Partner. The funds will be invested in the Escrow
    Agent's interest-bearing bank money market account. Interest earned on
    subscriptions accepted or rejected by the General Partner will be credited
    to the subscribers' customer accounts with DWR. The General Partner will
    determine to accept or reject a subscription generally within 10 days of the
    receipt of a complete and executed Subscription and Exchange Agreement and
    Power of Attorney. See "Plan of Distribution."
 
    Any subscription received by DWR during the last five business days of the
    month prior to the Closing may be rejected by the General Partner. See "Plan
    of Distribution."
 
(3) DWR paid approximately $900,000 in connection with the organization of the
    Partnership and the initial offering of Units. Such costs included legal,
    accounting, and auditing fees, printing costs, filing fees, escrow fees,
    marketing costs, and other related fees and expenses incurred in connection
    with the initial offering of Units. The Partnership has not and will not
    reimburse DWR for any portion of the costs so incurred or any offering
    expense (estimated to be $900,000 in the aggregate) incurred in connection
    with this additional offering of Units, and while DWR may recoup such costs
    from brokerage commissions paid by the Partnership, the Partnership will not
    be liable for any such costs at any time. Investments by subscribers are not
    subject to any upfront fees, commissions or expenses and therefore, 100% of
    the proceeds of the offering are available for investment in the
    Partnership. The number of Units sold will have no effect on the Net Asset
    Value per Unit.
 
                                       i
<PAGE>
    NO PERSON IS AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH THE MATTERS
DESCRIBED HEREIN, AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST
NOT BE RELIED ON AS HAVING BEEN AUTHORIZED. THIS PROSPECTUS DOES NOT CONSTITUTE
AN OFFER BY ANY PERSON WITHIN ANY JURISDICTION IN WHICH SUCH OFFER IS NOT
AUTHORIZED, OR IN WHICH THE PERSON MAKING SUCH OFFER IS NOT QUALIFIED TO DO SO,
OR TO ANY PERSON TO WHOM SUCH OFFER WOULD BE UNLAWFUL. THE DELIVERY OF THIS
PROSPECTUS AT ANY TIME DOES NOT IMPLY THAT INFORMATION CONTAINED HEREIN IS
CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE OF ITS ISSUE.
 
    The Partnership must furnish all Limited Partners annual and monthly reports
complying with CFTC requirements. The annual reports will contain audited, and
the monthly reports unaudited, financial information. The audited financial
statements will be examined and reported upon by independent certified public
accountants.
 
    UNTIL 40 DAYS FROM THE DATE OF THIS PROSPECTUS, ALL DEALERS EFFECTING
TRANSACTIONS IN THE REGISTERED SECURITIES, WHETHER OR NOT PARTICIPATING IN THIS
DISTRIBUTION, MAY BE REQUIRED TO DELIVER A PROSPECTUS. THIS IS IN ADDITION TO
THE OBLIGATION OF DEALERS TO DELIVER A PROSPECTUS WHEN ACTING AS UNDERWRITERS
AND WITH RESPECT TO THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
 
    The Partnership is subject to the informational requirements of the
Securities Exchange Act of 1934, and in accordance therewith files reports,
proxy statements and other information with the Securities and Exchange
Commission (the "SEC"). These reports, proxy statements and other information
can be inspected and copied at the public reference facilities maintained by the
SEC at the SEC's office at 450 Fifth Street, N.W., Room 1024, Washington, D.C.
20549, and at its regional offices located at 7 World Trade Center, Suite 1300,
New York, New York 10048 and 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661. Copies of such material can be obtained from the Public
Reference Section of the SEC at 450 Fifth Street N.W., Room 1024, Washington,
D.C. 20549 and at the regional offices described above, at prescribed rates. The
SEC maintains a Web site containing reports, proxy and information statements
and other information regarding registrants that file electronically with the
SEC. The address of such site is: http://www.sec.gov.
 
    The Partnership has filed with the SEC, in Washington, D.C., a Registration
Statement on Form S-1 under the Securities Act of 1933 with respect to the Units
offered hereby. This Prospectus does not contain all the information included in
the Registration Statement, certain items of which are omitted in accordance
with the Rules and Regulations of the SEC. For further information about the
Partnership and the Units offered hereby, reference is made to the Registration
Statement and the exhibits thereto.
 
                                       ii
<PAGE>
                           RISK DISCLOSURE STATEMENT
 
    YOU SHOULD CAREFULLY CONSIDER WHETHER YOUR FINANCIAL CONDITION PERMITS YOU
TO PARTICIPATE IN A COMMODITY POOL. IN SO DOING, YOU SHOULD BE AWARE THAT
FUTURES AND OPTIONS TRADING CAN QUICKLY LEAD TO LARGE LOSSES AS WELL AS GAINS,
SUCH TRADING LOSSES CAN SHARPLY REDUCE THE NET ASSET VALUE OF THE POOL AND
CONSEQUENTLY THE VALUE OF YOUR INTEREST IN THE POOL. IN ADDITION, RESTRICTIONS
ON REDEMPTIONS MAY AFFECT YOUR ABILITY TO WITHDRAW YOUR PARTICIPATION IN THE
POOL.
 
    FURTHER, COMMODITY POOLS MAY BE SUBJECT TO SUBSTANTIAL CHARGES FOR
MANAGEMENT, AND ADVISORY AND BROKERAGE FEES. IT MAY BE NECESSARY FOR THOSE POOLS
THAT ARE SUBJECT TO THESE CHARGES TO MAKE SUBSTANTIAL TRADING PROFITS TO AVOID
DEPLETION OR EXHAUSTION OF THEIR ASSETS. THIS DISCLOSURE DOCUMENT CONTAINS A
COMPLETE DESCRIPTION OF EACH EXPENSE TO BE CHARGED THIS POOL BEGINNING AT PAGE
34 AND A STATEMENT OF THE PERCENTAGE RETURN NECESSARY TO BREAK EVEN, THAT IS TO
RECOVER THE AMOUNT OF YOUR INITIAL INVESTMENT, AT PAGE 39.
 
    THIS BRIEF STATEMENT CANNOT DISCLOSE ALL THE RISKS AND OTHER FACTORS
NECESSARY TO EVALUATE YOUR PARTICIPATION IN THIS COMMODITY POOL. THEREFORE,
BEFORE YOU DECIDE TO PARTICIPATE IN THIS COMMODITY POOL, YOU SHOULD CAREFULLY
STUDY THIS DISCLOSURE DOCUMENT, INCLUDING A DESCRIPTION OF THE PRINCIPAL RISK
FACTORS OF THIS INVESTMENT BEGINNING AT PAGE 13.
 
    YOU SHOULD ALSO BE AWARE THAT THIS COMMODITY POOL MAY TRADE FOREIGN FUTURES
OR OPTIONS CONTRACTS. TRANSACTIONS ON MARKETS LOCATED OUTSIDE THE UNITED STATES,
INCLUDING MARKETS FORMALLY LINKED TO A UNITED STATES MARKET, MAY BE SUBJECT TO
REGULATIONS WHICH OFFER DIFFERENT OR DIMINISHED PROTECTION TO THE POOL AND ITS
PARTICIPANTS. FURTHER, UNITED STATES REGULATORY AUTHORITIES MAY BE UNABLE TO
COMPEL THE ENFORCEMENT OF THE RULES OF REGULATORY AUTHORITIES OR MARKETS IN
NON-UNITED STATES JURISDICTIONS WHERE TRANSACTIONS FOR THE POOL MAY BE EFFECTED.
 
                                      iii
<PAGE>
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                  PAGE
<S>                                             <C>
Risk Disclosure Statement.....................        iii
Summary of the Prospectus.....................          1
  Investment Requirements.....................          1
  Additional Information......................          2
  The Investment Objective....................          2
  The Partnership.............................          2
  The General Partner.........................          3
  The Commodity Broker........................          3
  The Trading Advisor.........................          4
  Risk Factors................................          4
  Conflicts of Interest.......................          6
  Description of Charges to the Partnership...          6
  Redemptions.................................          8
  Distributions...............................          9
  Transferability of Units....................          9
  The Offering................................          9
  Interest on Partnership Assets..............         11
  Use of Proceeds.............................         11
  Tax Considerations..........................         11
Risk Factors..................................         13
  Risks Relating to Futures Interests Trading
   and the Futures Interests Markets..........         13
  Risks Relating to the Partnership and the
   Offering of Units..........................         16
  Risks Relating to the Trading Advisor.......         17
  Taxation and Regulatory Risks...............         19
Conflicts of Interest.........................         20
  Relationship of the General Partner to the
   Commodity Broker...........................         20
  Accounts of Affiliates of the General
   Partner, the Trading Advisor and DWR.......         21
  Management of Other Accounts by the Trading
   Advisor....................................         22
  Customer Agreement with DWR.................         22
  Other Commodity Pools.......................         22
Fiduciary Responsibility......................         22
Performance Record of the Partnership.........         24
Selected Financial Data.......................         27
Management's Discussion and Analysis of
 Financial Condition and Results of
 Operations...................................         28
Description of Charges to the Partnership.....         34
  1. The Trading Advisor......................         35
  2. Dean Witter Reynolds Inc.................         37
  3. Other....................................         38
  4. Break Even Analysis......................         39
Investment Program, Use of Proceeds and
 Trading Policies.............................         41
  Trading Policies............................         42
Capitalization................................         44
The General Partner...........................         44
  Directors and Officers of the General
   Partner....................................         45
The Futures, Options and Forward Markets......         47
  Futures Contracts...........................         47
  Forward Contracts...........................         47
  Options on Futures..........................         47
  Hedgers and Speculators.....................         48
  Commodity Exchanges.........................         48
  Speculative Position Limits.................         49
  Daily Limits................................         49
  Regulations.................................         50
  Margins.....................................         51
General Description of Trading Approaches.....         52
  Introduction................................         52
  Systematic and Discretionary................         52
  Technical and Fundamental Analysis..........         52
  Trend-Following.............................         53
  Risk Control Techniques.....................         53
The Trading Advisor...........................         54
  Introduction................................         54
 
<CAPTION>
                                                  PAGE
<S>                                             <C>
  John W. Henry & Company, Inc................         54
  Legal and Ethical Concerns..................         59
  The JWH Investment Philosophy...............         60
  A Disciplined Investment Process............         61
  Program Modifications.......................         61
  Leverage....................................         62
  Addition, Redemption and Reallocation of
    Capital for Commodity Pool or Fund
    Accounts..................................         62
  Physical or Cash Commodities................         62
  Description of JWH's Trading Programs.......         63
The Commodity Broker..........................         73
  Description of the Commodity Broker.........         74
  Brokerage Arrangements......................         74
Certain Litigation............................         74
The Management Agreement......................         75
  Term........................................         75
  Liability and Indemnification...............         75
  Obligations to the Partnership..............         75
Redemptions...................................         76
The Limited Partnership Agreement.............         78
  Nature of the Partnership...................         78
  Management of Partnership Affairs...........         78
  Additional Offerings........................         79
  Sharing of Profits and Losses...............         79
  Restrictions on Transfers or Assignments....         79
  Amendments; Meetings........................         80
  Indemnification.............................         80
  Reports to Limited Partners.................         80
Plan of Distribution..........................         82
Subscription Procedure........................         84
Purchases by Employee Benefit Plans--ERISA
 Considerations...............................         85
Material Federal Income Tax Considerations....         87
  Introduction................................         87
  Partnership Status..........................         87
  Partnership Taxation........................         87
  Cash Distributions and Redemptions..........         88
  Gain or Loss on Trading Activity............         88
  Taxation of Limited Partners................         91
  Tax Audits..................................         94
State and Local Income Tax Aspects............         95
Potential Advantages..........................         95
Legal Matters.................................        100
Experts.......................................        100
Additional Information........................        100
Glossary......................................        101
  Certain Terms and Definitions...............        101
  Blue Sky Glossary...........................        102
Dean Witter Portfolio Strategy Fund L.P.
  Independent Auditors' Report................        F-1
  Statements of Financial Condition...........        F-2
  Statements of Operations....................        F-3
  Statements of Changes in Partners'
   Capital....................................        F-4
  Statements of Cash Flows....................        F-5
  Notes to Financial Statements...............        F-6
Demeter Management Corporation
  Independent Auditors' Report................       F-11
  Statements of Financial Condition...........       F-12
  Notes to Statements of Financial Condition
   (certain information relating to the
   financial condition of Demeter Management
   Corporation's parent is contained in "The
   General Partner")..........................       F-13
Exhibit A--Amended and Restated Limited
 Partnership Agreement........................        A-1
Annex 1--Request for Redemption...............       A-22
Exhibit B--Subscription and Exchange Agreement
 and Power of Attorney........................        B-1
</TABLE>
 
                                       iv
<PAGE>
                           SUMMARY OF THE PROSPECTUS
               THE DATE OF THIS PROSPECTUS IS             , 1997.
 
    The following is a summary of this Prospectus. This Prospectus contains more
detailed  information under the captions referred  to below, and this summary is
qualified in its entirety by the information appearing elsewhere herein.
 
                            INVESTMENT REQUIREMENTS
 
    The minimum  investment for  most  subscribers is  $5,000, except  that  the
minimum  investment  is: (a)  $2,000  in the  case  of an  Individual Retirement
Account ("IRA"); or (b) for subscribers who  redeem, on or after June 30,  1996,
units  of limited partnership interest in any other commodity pool for which the
General Partner serves as  the general partner and  commodity pool operator  and
use  the proceeds of such redemption (less any applicable redemption charges) to
purchase Units (such purchases are hereinafter referred to as "Exchanges"),  the
lesser  of (i) $5,000 ($2,000 in the case of an IRA), (ii) the proceeds from the
redemption of five units (two units in the case of an IRA) from commodity  pools
other  than the Spectrum  Series (iii) the  proceeds from the  redemption of 500
units (200 units in  the case of an  IRA) from one, or  any combination, of  the
Spectrum  Series of commodity pools, or (iv) the proceeds from the redemption of
all of  a  subscriber's units  of  limited  partnership interest  in  any  other
commodity  pool  for which  the General  Partner serves  as general  partner and
commodity pool  operator.  Existing  Limited  Partners who  desire  to  make  an
additional  investment in the Partnership may subscribe for Units at the Closing
with a minimum investment of $1,000.
 
    Subscribers should be aware that there  are minimum net worth and/or  annual
income  suitability standards which must be met in order to subscribe for Units.
Each subscriber  must  represent and  warrant  in a  Subscription  and  Exchange
Agreement  and  Power  of  Attorney  that  such  subscriber  has  received  this
Prospectus and that such subscriber meets the applicable State minimum financial
suitability standard set forth  in the Subscription  and Exchange Agreement  and
Power  of Attorney (which may require a  greater minimum investment), and may be
required to provide additional information regarding the subscriber's background
and investment  history.  Dean Witter  Reynolds  Inc. ("DWR")  and  its  account
executives  have a duty to determine that  this is a suitable investment for the
subscriber.
 
    Unless otherwise specified  in the Subscription  and Exchange Agreement  and
Power of Attorney under "State Suitability Requirements," a subscriber must have
either: (a) a net worth of at least $75,000 (exclusive of home, furnishings, and
automobiles),  or  (b) a  net  worth of  at  least $30,000  (exclusive  of home,
furnishings, and automobiles) and an annual income of at least $30,000.  Certain
jurisdictions  impose  more  restrictive suitability  and/or  minimum investment
requirements than those set forth above, including requirements for a higher net
worth, a higher annual  income, or both.  A list of  such jurisdictions and  the
restrictions  imposed is included in the Subscription and Exchange Agreement and
Power of Attorney under the heading "State Suitability Requirements." A specimen
form of the Subscription and Exchange Agreement and Power of Attorney is annexed
hereto as Exhibit B. Separate execution copies of the Subscription and  Exchange
Agreement  and  Power of  Attorney either  accompany this  Prospectus or  may be
obtained, after delivery of this Prospectus, from a local DWR branch office.
 
    Subject to certain limited revocation rights (see "Subscription Procedure"),
all subscriptions  for Units  are irrevocable  by subscribers,  and the  General
Partner  may, in  its sole  discretion, reject any  subscription in  whole or in
part. There are significant restrictions on the ability of a Limited Partner  to
redeem  Units,  and  although  the Partnership's  Amended  and  Restated Limited
Partnership Agreement (the "Limited Partnership Agreement") permits the transfer
of Units subject to certain conditions, there is no public market for the  Units
and  none is likely to develop. Therefore, a  purchaser of Units must be able to
bear the economic risks  of an investment in  the Partnership for a  significant
period   of  time.  See  "The  Limited  Partnership  Agreement--Restrictions  on
Transfers or Assignments" and "Redemptions."
 
                                       1
<PAGE>
                             ADDITIONAL INFORMATION
 
    In addition to this  Prospectus, a sales  brochure and introductory  letters
prepared  by DWR may be delivered with this Prospectus or may be obtained from a
DWR account executive  or by  writing to Dean  Witter Reynolds  Inc., Two  World
Trade Center, 62nd Floor, New York, New York 10048.
 
                            THE INVESTMENT OBJECTIVE
 
    The   objective   of  Dean   Witter  Portfolio   Strategy  Fund   L.P.  (the
"Partnership") is to generate substantial  appreciation of its assets over  time
through  speculative trading. The entire proceeds of  the sale of the Units will
be deposited in the Partnership's accounts with DWR to be used as margin for the
Partnership's trading  activities  and  may  be  subject  to  depletion  if  the
Partnership experiences losses from its trading activities.
 
    The  Partnership  will trade  futures contracts  and forward  contracts, and
options on  futures contracts  and on  physical commodities,  and other  futures
interests  pursuant to the  trading approaches utilized  by the Trading Advisor.
The Partnership's portfolio will normally include contracts for diverse  futures
interests,   including  industrial  items,  metals,  agriculturals,  currencies,
financial instruments, and stock, financial,  and economic indexes. The  Trading
Advisor  employs a  variety of  trading programs  in an  effort to  achieve this
objective, and may  from time  to time, in  its discretion,  modify its  trading
programs  and  add to  and delete  from  the Partnership's  portfolio additional
futures interests.  The  General  Partner,  in  consultation  with  the  Trading
Advisor,  may  reallocate the  Partnership's funds  among the  Trading Advisor's
various programs. See "Investment Program, Use of Proceeds and Trading  Policies
- -- Trading Policies" and "The Trading Advisor."
 
    Based upon the fees and expenses of the Partnership, the Partnership will be
required  to earn estimated annual  net trading profits of  5.71% of its average
annual Net Assets  (after taking  into account estimated  interest income  based
upon  current rates  of 5%)  in order  to avoid  depletion or  exhaustion of its
assets. See "Description of  Charges to the  Partnership." Investors should  see
"Break  Even Analysis" on page 39 for the effect of redemption charges which are
not included in the above figures. By reason of the foregoing, investors  should
consider an investment in the Partnership as a long-term investment.
 
    Distributions of profits, if any, will be made at the sole discretion of the
General  Partner. It is  currently the intention  of the General  Partner not to
make distributions. See "Distributions" in this section.
 
                                THE PARTNERSHIP
 
    The Partnership was organized  as a limited partnership  on August 28,  1990
under  the Delaware  Revised Uniform  Limited Partnership  Act (the "Partnership
Act"). The offices  of the Partnership  are located at  Two World Trade  Center,
62nd Floor, New York, New York 10048, telephone (212) 392-8899.
 
    The  Partnership  was  initially capitalized  through  the  contributions of
$1,000 by the  General Partner  and $1,000 by  an initial  limited partner.  The
initial limited partner ceased to be a Limited Partner of the Partnership at the
Partnership's initial closing (the "Initial Closing"), which was held on January
31, 1991.
 
    The  Partnership initially offered 150,000  Units through a public offering,
in which  Units  were sold  for  $1,040 at  the  Initial Closing  (the  "Initial
Offering"),  including  a  $40  (4%) selling  commission,  which  commission was
subject to reduction based on the  number of Units that a subscriber  purchased.
During  the  Initial  Offering,  the Partnership  accepted  $99,480,090  (net of
commissions) and issued 99,480.090 Units at an initial Net Asset Value per  Unit
of  $1,000. In  accordance with the  Limited Partnership  Agreement, the General
Partner contributed  $1,011,000 (1,011.000  General  Partnership Units)  to  the
Partnership.
 
    The  Partnership  was  initially  structured as  a  "guaranteed"  fund which
ensured investors in the initial offering  who redeemed their Units on July  31,
1996,  the return  of their initial  principal of  $1,000 per Unit.  On July 31,
1996, the Net Asset Value per Unit was $1,720.95, which exceeded the  guaranteed
 
                                       2
<PAGE>
amount,  and the  letter of  credit which  implemented the  principal protection
feature expired. In connection with  the expiration of the principal  protection
feature,  the General  Partner changed the  Partnership's name  from Dean Witter
Principal Secured Futures Fund L.P. to Dean Witter Portfolio Strategy Fund L.P.,
and has determined to have John W. Henry & Company, Inc. (the "Trading Advisor")
continue to trade the  Partnership's Net Assets in  a non-guaranteed format.  In
connection  with these  events, the allocation  of the  Partnership's Net Assets
among the Trading Advisor's trading programs  has changed and may change in  the
future.  See "The Trading Advisor." Concurrent with the expiration of the letter
of credit  on  July 31,  1996,  both the  letter  of credit  fee  of 1%  of  new
appreciation  paid by  the Partnership and  the reduction of  interest income of
1.125% per annum  for the letter  of credit fee  paid by DWR  prior to July  31,
1996, have been eliminated.
 
    The Partnership will terminate upon the first to occur of the following: (a)
December  31,  2025; (b)  the  withdrawal, insolvency,  bankruptcy, dissolution,
liquidation, or termination of the General Partner, unless a new general partner
has been  elected  and the  business  of the  Partnership  is continued  by  the
successor  general partner;  (c) an  election to  dissolve the  Partnership at a
specified time by Limited Partners owning more than 50% of the Units then  owned
by  Limited Partners; (d) a decline  in the Net Asset Value  of a Unit as of the
close of business (as determined by the General Partner) on any day to less than
$250; (e) a decline in the Partnership's Net Assets as of the close of  business
(as  determined by the  General Partner) on any  day to $250,000  or less; (f) a
determination by  the  General Partner  that  the Partnership's  Net  Assets  in
relation  to the operating  expenses of the Partnership  make it unreasonable or
imprudent to continue the business of the Partnership; (g) the occurrence of any
event which shall make it  unlawful for the existence  of the Partnership to  be
continued;  or  (h) a  determination  by the  General  Partner to  terminate the
Partnership following a  Special Redemption Date.  See "The Limited  Partnership
Agreement--Termination of the Partnership."
 
    The Partnership commenced trading operations on February 1, 1991. The actual
performance  record of the Partnership from  the commencement of trading through
December 31, 1996 is set forth under "Performance Record of the Partnership."
 
                              THE GENERAL PARTNER
 
    The general  partner  and commodity  pool  operator of  the  Partnership  is
Demeter  Management Corporation, a Delaware corporation (the "General Partner").
The General Partner and Dean Witter Reynolds Inc. ("DWR"), the selling agent and
commodity broker for the Partnership, are each wholly-owned subsidiaries of Dean
Witter, Discover &  Co. ("DWD").  On February 5,  1997, DWD  and Morgan  Stanley
Group  Inc. ("Morgan Stanley") announced a  definitive agreement to merge, which
merger is expected  to be completed  in mid-1997, subject  to customary  closing
conditions,   including  certain  regulatory  approvals   and  the  approval  of
shareholders of  both  companies.  See "Conflicts  of  Interest,"  "The  General
Partner,"  and "The  Commodity Broker."  The Trading  Advisor makes  all trading
decisions in respect of  the funds of the  Partnership, except that the  General
Partner  may override the  instructions of the Trading  Advisor and make trading
decisions under  certain  circumstances.  See "The  Management  Agreement."  The
General  Partner is or has been the  general partner and commodity pool operator
of 28 commodity pools, five of  which have terminated. The General Partner  had,
in  the aggregate, over $1 billion of net assets under management as of December
31, 1996.
 
                              THE COMMODITY BROKER
 
    The principal commodity broker for  the Partnership is Dean Witter  Reynolds
Inc.  (in  such capacity,  the "Commodity  Broker"). The  Commodity Broker  is a
wholly-owned subsidiary of DWD and currently acts as commodity broker for all of
the commodity pools for  which the General Partner  acts as general partner  and
commodity  pool  operator, as  well as  for other  commodity pools.  The General
Partner believes  that  the  commissions  and charges  payable  to  DWR  by  the
Partnership  are competitive  with those paid  by other  public commodity pools,
although they may be higher than those  paid by certain other customers of  DWR.
See  "Conflicts of  Interest," "Description of  Charges to  the Partnership-- 2.
Dean Witter Reynolds Inc.," and "The Commodity Broker."
 
                                       3
<PAGE>
                              THE TRADING ADVISOR
 
    The trading advisor  for the Partnership  is John W.  Henry & Company,  Inc.
("JWH"  or the "Trading  Advisor"). Subject to  certain limitations, the Trading
Advisor has  authority  and  responsibility for  directing  the  investment  and
reinvestment  in futures  interests of  the Partnership's  Net Assets.  See "The
Management Agreement."  Since  the primary  purpose  of the  Partnership  is  to
achieve  appreciation  of  its  assets through  speculative  trading  in futures
interests, the Partnership's ability to succeed in that endeavor depends on  the
success of the trading programs of the Trading Advisor.
 
    The  assets  of the  Partnership are  traded  pursuant to  technical trading
programs developed by the Trading Advisor. Technical programs formulate  trading
decisions  on an  analysis of prior  historical patterns of  price movements and
other market indicators  such as volume  and market behavior.  See "The  Trading
Advisor--Description  of JWH's Trading Programs." See also "The Futures, Options
and Forward Markets."
 
    The  General  Partner,  in  consultation  with  the  Trading  Advisor,   may
reallocate  the Partnership's funds among  the Trading Advisor's various trading
programs.
 
    The Trading Advisor is not affiliated  with the General Partner or DWR.  See
"The Trading Advisor" and "The Management Agreement."
 
                                  RISK FACTORS
 
    As  a general  matter, an investment  in the Partnership  is speculative and
involves substantial risk,  including the risk  of loss of  a Limited  Partner's
entire investment. Risks of an investment in the Partnership include:
 
RISKS RELATING TO FUTURES INTERESTS TRADING
 
       -Futures  interests  trading  is  speculative  and  volatile.  The
        Partnership's trading has  been volatile.  Such volatility  could
        result  in an  investor losing all  or a substantial  part of his
        investment.
 
       -Futures interests  trading  is highly  leveraged  and  relatively
        small  price movements  can result  in significant  losses to the
        Partnership.
 
       -Futures  interests  trading  may  be  illiquid  and  in   certain
        situations  prevent the Partnership from  limiting its loss on an
        unfavorable position.
 
       -Trading in  forward  contracts  may subject  the  Partnership  to
        losses if a counterparty is unable to meet its obligations.
 
       -Trading on foreign exchanges may result in the Partnership having
        less   regulatory   protection   available.   In   addition,  the
        Partnership may suffer losses due to exchange rate changes.
 
       -Trading in futures options can  be extremely expensive if  market
        volatility is incorrectly predicted.
 
       -The  Partnership has credit risk because  DWR acts as the futures
        commission merchant or the sole counterparty with respect to most
        of the Partnership's assets.
 
       -Speculative position limits may result in the Partnership  having
        to liquidate profitable positions.
 
RISKS RELATING TO THE PARTNERSHIP AND OFFERING OF UNITS
 
       -Past results are not necessarily indicative of future results.
 
       -The  Partnership incurs substantial charges regardless of whether
        it realizes profits. The  Partnership must earn estimated  annual
        net  trading profits  of 5.71% of  its average  annual Net Assets
        (after   taking   into   account   estimated   interest    income
 
                                       4
<PAGE>
        based  upon current rates  of 5%) in order  to avoid depletion or
        exhaustion of  its  assets.  Investors  should  see  "Break  Even
        Analysis"  on page 39 for the  effect of redemption charges which
        are not included in  the above figures.  The Partnership had  net
        trading  losses in 1994 and 1992.  See "Performance Record of the
        Partnership."
 
       -The liquidity of  the Units  is restricted  in that  there is  an
        absence  of a secondary market, the ability to assign or transfer
        is restricted, redemptions are limited to monthly after the first
        six months,  and  redeemed Units  may  be subject  to  redemption
        charges.
 
       -Significant  actual  and  potential conflicts  of  interest exist
        among the General Partner, the Trading Advisor and the  Commodity
        Broker.
 
       -Limited  Partners  do not  participate in  the management  of the
        Partnership or in the conduct of its business.
 
       -Limited Partners must rely on the General Partner's selection  of
        a trading advisor.
 
RISKS RELATED TO THE TRADING ADVISOR
 
       -The Partnership will not be profitable unless the Trading Advisor
        is successful with its trading programs.
 
       -Market  factors may adversely affect  or require modifications to
        the Trading Advisor's programs.
 
       -The Management Agreement may  not be renewed,  may be renewed  on
        less  favorable terms to the Partnership, or may be terminated by
        the Trading Advisor such that the Trading Advisor will no  longer
        be available to the Partnership.
 
       -Substantial  increase in assets allocated  to the Trading Advisor
        may adversely affect its performance.
 
       -The Trading Advisor's primarily  technical trading programs  have
        inherent limitations.
 
       -Increases in the use of technical trading programs in the futures
        interests  markets  could  adversely  alter  trading  patterns or
        affect execution of trades by the Partnership.
 
TAXATION RISKS
 
       -If the tax  laws and/or certain  facts and circumstances  change,
        the Partnership may be taxed as a corporation.
 
       -Profits  earned during any year will  result in taxable income to
        an investor even though  the General Partner  does not intend  to
        make distributions.
 
       -Deductibility  of certain  of the  Partnership's expenses  may be
        limited.
 
       -The Partnership's  tax  return may  be  audited by  the  Internal
        Revenue Service.
 
    Only  the  General  Partner  will  be  liable  for  Partnership  obligations
(including margin calls) to the extent that the Partnership's assets,  including
amounts contributed by the Limited Partners and amounts paid to Limited Partners
upon  redemptions, distributions  or otherwise (together  with interest thereon)
are insufficient to  meet those  obligations. See  "Risk Disclosure  Statement,"
"Risk  Factors,"  "Conflicts  of  Interest,"  "Description  of  Charges  to  the
Partnership,"  and   "The   Limited   Partnership   Agreement--Nature   of   the
Partnership."
 
                                       5
<PAGE>
                             CONFLICTS OF INTEREST
 
    Significant  actual  and  potential  conflicts  of  interest  exist  in  the
structure and  operation  of  the  Partnership,  principally  arising  from  the
affiliation  between  the General  Partner  and DWR,  and  the trading  of other
accounts of, or managed  by, the General Partner,  DWR, the Trading Advisor  and
their   affiliates.  Such  conflicts   include  the  fact   that  the  brokerage
arrangements were  not  agreed upon  in  arm's-length negotiations  due  to  the
affiliation  between the General  Partner and DWR, and  that the General Partner
and DWR may have conflicting demands  in respect of other commodity pools;  that
DWR  employees selling Units will receive a portion of the brokerage commissions
paid to DWR by the Partnership, and  thus have a conflict in advising  investors
whether  and  when  to redeem  Units;  that  the Trading  Advisor  and  DWR, and
individuals and  entities  associated  with the  General  Partner,  the  Trading
Advisor  and  DWR, may  trade futures  interests for  their own  accounts, which
trading may compete  with the  Partnership for  positions; that  trading by  the
Trading  Advisor for  its own  account and for  other customers  could result in
application of position limits to restrict the Partnership's trading; that under
the customer agreement with  DWR, DWR may close  out positions and take  certain
other   actions  with   regard  to   the  Partnership's   accounts  without  the
Partnership's consent; and  that other  commodity pools managed  by the  General
Partner and the Trading Advisor may compete with the Partnership. See "Conflicts
of  Interest," "The Trading  Advisor" "The General  Partner," and "The Commodity
Broker."
 
                   DESCRIPTION OF CHARGES TO THE PARTNERSHIP
 
    The Partnership is subject to substantial charges which are summarized below
and described in detail under "Description  of Charges to the Partnership."  See
also  "Risk  Factors--Risks  Relating to  the  Partnership and  the  Offering of
Units--Substantial Charges  to the  Partnership,"  "Investment Program,  Use  of
Proceeds  and  Trading Policies,"  "The Commodity  Broker," and  "The Management
Agreement."
 
<TABLE>
<CAPTION>
     RECIPIENT                   FORM OF COMPENSATION                         AMOUNT OF COMPENSATION
- -------------------  --------------------------------------------  --------------------------------------------
<S>                  <C>                                           <C>
The Trading Advisor  Monthly Management Fee.                       A flat rate of 1/3 of 1% of Net Assets as of
                                                                     the last day  of each month  (a 4%  annual
                                                                     rate).
                     Quarterly Incentive Fee.                      15% of the Trading Profits experienced as of
                                                                     the end of each calendar quarter.
The Commodity        Brokerage Commissions.                        Roundturn  commissions (the  total costs for
 Broker                                                              both the  opening  and  liquidating  of  a
                                                                     futures   interest)   at   80%   of  DWR's
                                                                     published non-member rates (which is equal
                                                                     to an average of approximately $75), which
                                                                     commissions (together with the transaction
                                                                     fees and costs described below) are capped
                                                                     at (i) 13/20  of 1% per  month (a  maximum
                                                                     7.8% annual rate) of the Partnership's Net
                                                                     Assets  as of the last  day of each month,
                                                                     with such cap applied separately on a  per
                                                                     trading   system   basis;  and   (ii)  14%
                                                                     annually  of  the  Partnership's   average
                                                                     monthly  Net  Assets, aggregated  with net
                                                                     excess interest  and compensating  balance
                                                                     benefits, as described below.
                     Transaction  charges  for  providing forward  Forward  contract  fees  average  $3-$6  per
                       trading   facilities,  the   execution  of    roundturn trade, charges for execution  of
                       forward    contract    transactions,   the    cash contract transactions
</TABLE>
 
                                       6
<PAGE>
 
<TABLE>
<CAPTION>
     RECIPIENT                   FORM OF COMPENSATION                         AMOUNT OF COMPENSATION
- -------------------  --------------------------------------------  --------------------------------------------
                       execution of  cash  contract  transactions    relating   to  EFP  transactions  are  ap-
                       relating  to  exchange   of  futures   for    proximately  $2.50 per  cash contract, and
                       physicals ("EFP")  transactions,  and  the    charges  for the use  of the institutional
                       use of DWR's  institutional and  overnight    trading   desk   or   overnight  execution
                       execution facilities.                         facility are up to  $3 per roundturn  (the
                                                                     amount  of such charges is included in the
                                                                     transaction  fees  described  below  under
                                                                     "Other"   and  is  subject   to  the  caps
                                                                     described therein).
<S>                  <C>                                           <C>
                     Financial benefit to  Commodity Broker  from  The  aggregate of  (i) brokerage commissions
                       interest  earned   on  the   Partnership's    and  transaction fees and costs payable by
                       assets in excess of  the interest paid  to    the  Partnership,  as described  above and
                       the  Partnership  and  from   compensating    below,  and (ii)  net excess  interest and
                       balance treatment in  connection with  its    compensating   balance  benefits   to  DWR
                       designation of a  bank or  banks in  which    (after   crediting  the  Partnership  with
                       Partnership assets are deposited.             interest) are  capped at  14% annually  of
                                                                     the   Partnership's  average  monthly  Net
                                                                     Assets as of  the last day  of each  month
                                                                     during a calendar year.
Other                Administrative  expenses  (including  legal,  Ordinary administrative expenses, which have
                       accounting,  and  auditing  expenses,  and    been  equal to 0.15%  of the Partnership's
                       expenses  of  printing  and   distributing    average annual Net Assets since inception,
                       reports) and all extraordinary expenses of    are  capped  at  0.25%  per  year  of  the
                       the Partnership.                              Partnership's average  monthly Net  Assets
                                                                     as   of  the  last   day  of  each  month.
                                                                     Extraordinary expenses cannot be estimated
                                                                     and are not subject to any cap.
                     All transaction fees  and costs incurred  in  Transaction  fees and costs, which have been
                       connection with the Partnership's  futures    equal   to  0.31%   of  the  Partnership's
                       interests  trading  activities  (including    average annual Net Assets since inception,
                       floor   brokerage  fees,   exchange  fees,    are included in: (i) the cap on  brokerage
                       clearinghouse fees, NFA fees, "give up" or    commissions; and (ii) the cap on aggregate
                       transfer   fees   (fees  charged   by  one    brokerage  commissions   and  net   excess
                       clearing  brokerage  firm  to  transfer  a    interest and compensating balance
                       trading  position   to  another   clearing    benefits, each as described above.
                       firm),   and  any  costs  associated  with
                       taking delivery of futures interests).
</TABLE>
 
    As long as redemption charges are imposed, as described under "Redemptions,"
the management fee, incentive fee and caps on brokerage commissions, transaction
fees and costs, ordinary  administrative expenses, and  net excess interest  and
compensating  balance benefits  may not be  increased. Thereafter,  none of such
fees and caps may  be increased unless Limited  Partners are given prior  notice
thereof  and an opportunity to redeem  their Units, subject to additional limits
described under "Description of Charges to the Partnership."
 
                                       7
<PAGE>
    Based  on the annual  fees and expenses of  the Partnership described above,
the Partnership must  earn estimated  annual net trading  profits (after  taking
into  account estimated interest income based upon current rates of 5%) of 5.71%
of its average annual Net  Assets in order to  avoid depletion or exhaustion  of
its  assets. In  order for a  Limited Partner  to pay the  redemption charge and
recoup its initial investment  upon redemption after  one year, the  Partnership
must  earn  estimated  annual net  trading  profits (after  taking  into account
estimated interest  income based  upon current  rates  of 5%)  of 9.35%  of  its
average annual Net Assets. This assumes that the Trading Advisor's gross profits
equal  expenses, such that no incentive fees  are earned by the Trading Advisor.
For the actual  fees and  expenses paid by  the Partnership  during fiscal  year
1996, see "Description of Charges to the Partnership."
 
                                  REDEMPTIONS
 
    Persons  who have been Limited Partners for  more than six months may redeem
all or part of their Units, regardless of when such Units were purchased, at any
month-end in  the  manner  described  herein.  Such  Units  may  be  subject  to
redemption  charges as described herein. Persons  who have been Limited Partners
for less than six months may first redeem Units effective as of the last day  of
the sixth month following the Closing in the manner described herein. Such Units
may be subject to redemption charges as described herein.
 
    Units  redeemed on or prior to the last  day of the twelfth month after such
Units were purchased will be subject to  a redemption charge equal to 3% of  the
Net  Asset Value of a Unit on the  date of such redemption. Units redeemed after
the last  day of  the twelfth  month and  on or  prior to  the last  day of  the
eighteenth  month after  which such  Units were purchased  will be  subject to a
redemption charge equal to 2% of  the Net Asset Value of  a Unit on the date  of
such  redemption. Units redeemed after the last  day of the eighteenth month and
on or prior to the  last day of the twenty-fourth  month after which such  Units
were  purchased will be  subject to a redemption  charge equal to  1% of the Net
Asset Value of a Unit on the  date of such redemption. Units redeemed after  the
last  day of the twenty-fourth month after  which such Units were purchased will
not be subject to a redemption charge. The foregoing redemption charges will  be
paid to DWR.
 
    A  limited partner in any of the other commodity pools for which the General
Partner serves as the general partner  and commodity pool operator who  redeemed
all  or a portion of his interest in  one of such other partnerships on or after
June 30, 1996 and purchases Units will not be subject to the redemption  charges
or  restrictions under the circumstances described  herein. The number of Units,
expressed as  a  percentage of  Units  purchased, which  are  not subject  to  a
redemption  charge is determined by dividing (a) the dollar amount received upon
redeeming an interest in  such other partnership and  used to purchase Units  by
(b)  the total investment in the Partnership. For example, a limited partner who
receives $5,000 upon redeeming all or a part of his interest in a commodity pool
operated by the General Partner and invests $10,000 in the Partnership will  not
be subject to a redemption charge on 50% of his Units. An investor who purchases
$500,000  or  more  of Units  will  not  be subject  to  the  redemption charges
described  above.  Similarly,  investors  who   are  Limited  Partners  in   the
Partnership  immediately prior to the Closing will not be subject to the minimum
six-month holding period  or the  redemption charges, as  described above,  with
respect to Units purchased during the Offering Period.
 
    A  redemption may  be made  only in  whole Units  or in  multiples of $1,000
(which may  result in  the redemption  of fractional  Units), unless  a  Limited
Partner's  entire interest in  the Partnership is redeemed.  The right to obtain
redemption is  contingent  upon  the Partnership  having  assets  sufficient  to
discharge  its  liabilities (including  any amounts  owed  to affiliates  of the
General Partner) as of the month-end,  and the General Partner's timely  receipt
of  a properly executed Request for Redemption. The Partnership may be forced to
liquidate open positions to  satisfy redemptions in the  event it does not  have
sufficient cash on hand. See "Redemptions."
 
                                       8
<PAGE>
    In  addition  to  the information  and  reports described  below  under "The
Limited Partnership Agreement--Reports to Limited Partners," the General Partner
will provide Limited Partners with such  other information and will comply  with
any  such  procedures  in  connection  with redemptions  as  in  the  future are
specifically  required  under  Securities  and  Exchange  Commission  rules  and
policies for commodity pools and similar investment vehicles.
 
                                 DISTRIBUTIONS
 
    Distributions of profits, if any, will be made at the sole discretion of the
General  Partner (the General Partner has  not previously made any distributions
of profits and it is currently the intention of the General Partner not to  make
distributions).  It is possible that no distributions will be made in some years
in which the Partnership has taxable profits, realized or unrealized. However, a
Limited Partner will nevertheless be required  to account for his share of  such
profits  as income for federal tax purposes. Distributions may be made by credit
to a Limited Partner's customer account  with DWR. See "Material Federal  Income
Tax Considerations."
 
                            TRANSFERABILITY OF UNITS
 
    The  assignability or  transferability of  Units is  limited by  the Limited
Partnership Agreement and  no assignee  or transferee may  become a  substituted
Limited  Partner without the  consent of the General  Partner, which consent the
General  Partner  may  withhold  in  its  sole  discretion.  See  "The   Limited
Partnership Agreement--Restrictions on Transfers or Assignments."
 
                                  THE OFFERING
 
SECURITIES OFFERED
 
    99,480.090  Units were sold  to the public  during the Partnership's Initial
Offering. The Partnership is  currently offering up  to 50,000 additional  Units
for  sale. No  Units held by  existing Limited  Partners are being  sold in this
offering. The  General  Partner,  in  its  discretion,  may  register  and  sell
additional Units from time to time.
 
SUBSCRIPTION PROCEDURE
 
    The  minimum subscription for most subscribers is $5,000, except the minimum
subscription is:  (a) $2,000  in the  case of  an IRA;  or (b)  for  subscribers
effecting Exchanges, the lesser of (i) $5,000 ($2,000 in the case of IRAs), (ii)
the  proceeds from the redemption of five units  (two units in the case of IRAs)
from commodity pools other than the Spectrum Series, (iii) the proceeds from the
redemption of  500 units  (200 units  in  the case  of IRAs)  from one,  or  any
combination,  of the  Spectrum Series of  commodity pools, or  (iv) the proceeds
from the  redemption of  all  of a  subscriber's  units of  limited  partnership
interest  in any other  commodity pool for  which the General  Partner serves as
general partner  and  commodity pool  operator.  Existing Limited  Partners  who
desire  to make  an additional investment  in the Partnership  may subscribe for
Units at the Closing with a minimum investment of $1,000. Certain  jurisdictions
may  impose  higher  minimum  investment  requirements;  see  "State Suitability
Requirements" in the Subscription and Exchange Agreement and Power of  Attorney.
No  selling commissions will  be charged on  subscriptions. No offering expenses
will be charged to investors  or the Partnership. See "Investment  Requirements"
above, "Plan of Distribution," and "Subscription Procedure."
 
    In order to purchase Units, a subscriber must complete, execute, and deliver
an  execution  copy of  the  Subscription and  Exchange  Agreement and  Power of
Attorney to  DWR.  In the  Subscription  and  Exchange Agreement  and  Power  of
Attorney,  a  subscriber  will (i)  authorize  the  General Partner  and  DWR to
transfer the subscription amount from the subscriber's customer account with DWR
to the Dean Witter Portfolio Strategy Fund  L.P. Escrow Account, or (ii) in  the
case of an Exchange, authorize the General Partner to redeem all or a portion of
such  subscriber's  interest in  another commodity  pool  for which  the General
Partner serves as general  partner and commodity pool  operator (subject to  the
terms  of the applicable limited partnership  agreement) and use the proceeds of
such redemption (less
 
                                       9
<PAGE>
any applicable  redemption charges)  to  purchase Units  in the  Partnership.  A
subscriber  must have the appropriate amount in his customer account with DWR on
the first business  day following the  date that his  Subscription and  Exchange
Agreement  and Power  of Attorney  is received  by DWR,  and DWR  will debit the
customer account and transfer such funds  to the escrow account with the  Escrow
Agent  on  that date.  A  subscriber may  revoke  his Subscription  and Exchange
Agreement and Power of Attorney, and  receive a full refund of the  subscription
amount  and any accrued interest  thereon (or revoke the  redemption of units in
the other commodity pool in the case of an Exchange), within five business  days
after  execution of  such Agreement or  no later  than 3:00 p.m.,  New York City
time, on the date of the  Closing, whichever comes first, by delivering  written
notice to his DWR account executive.
 
PLAN OF DISTRIBUTION
 
    The  Units  are  being offered  and  sold  by the  Partnership  through DWR.
Pursuant to a Selling Agreement among the Partnership, the General Partner,  the
Trading  Advisor and DWR, DWR  will use its best efforts  to sell Units, but DWR
has not made any commitment to offer and  sell a specific amount of Units or  to
purchase any Units. See "Plan of Distribution." The General Partner, in its sole
discretion,  may reject a subscription in whole or  in part at any time prior to
acceptance. Units are being offered to the  public at a price per Unit equal  to
100%  of the Net Asset Value  of a Unit as of the  close of business on the last
day of the month immediately  preceding the date of  the Closing. Units will  be
issued  at the Closing,  which is currently  scheduled to held  as of October 1,
1997; provided, however, that the General Partner may at its discretion hold the
Closing as of the  first business day  of any month  during the Offering  Period
(the period commencing the date of this Prospectus and ending October 10, 1997).
The General Partner shall have the discretion to terminate the offering of Units
at any time.
 
    Funds with respect to a subscription received during the Offering Period and
not immediately rejected by the General Partner will be transferred to, and held
in escrow by, The Chase Manhattan Bank (the "Escrow Agent"), as described above,
until  the General Partner either rejects such subscription prior to the Closing
or accepts such subscription at the Closing.
 
    The General  Partner, DWR,  and the  Trading Advisor,  and their  respective
principals,  directors, officers,  employees and  affiliates, may  subscribe for
Units.  Subject  to  certain   limited  revocation  rights  (see   "Subscription
Procedure"),  all  subscriptions  for  Units  are  irrevocable  by  subscribers.
Interest earned on subscriptions deposited  into escrow and thereafter  rejected
by  the General  Partner will be  credited to the  subscriber's customer account
with DWR.
 
    Employees of  DWR will  receive  compensation from  DWR,  and not  from  the
Partnership,  out of the  brokerage commissions paid to  DWR by the Partnership.
Such continuing compensation is in consideration of certain additional  services
provided  to Limited Partners by  such persons on a  continuing basis and may be
deemed to be additional underwriting compensation. See "Plan of Distribution."
 
NO SELLING COMMISSIONS OR OFFERING EXPENSE CHARGE
 
    In connection with  the offering of  Units pursuant to  this Prospectus,  no
selling commissions or offering expenses will be paid by Limited Partners or the
Partnership.  DWR has  previously paid all  of the organizational  costs and the
costs relating to the Initial Offering and will pay all of the costs incurred in
connection with this offering of  Units, estimated to be approximately  $900,000
in  the aggregate. The Partnership will not reimburse DWR for any portion of the
costs so  incurred, and  will not  be  liable for  any such  costs at  any  time
(although  DWR  may recoup  such costs  from brokerage  commissions paid  by the
Partnership). Except as otherwise provided herein, employees of DWR will receive
from DWR (solely from its own funds) gross  sales credit equal to 3% of the  Net
Asset  Value per Unit as of the Closing for each Unit sold by them and issued at
the Closing, and, if properly registered  with the CFTC, also will receive  from
DWR  (solely from its own funds) up to 35% of the brokerage commissions that are
attributable to outstanding Units sold by them and received by DWR as  commodity
broker  for the  Partnership each month,  beginning with the  eighth month after
which such Unit was issued, as described in  Note (1) to the table on the  front
cover  page of this Prospectus. See  "Plan of Distribution." DWR's employees may
have a conflict of interest in rendering  advice to Limited Partners as to  when
and  whether  to redeem  Units because  of their  interest in  receiving certain
continuing
 
                                       10
<PAGE>
compensation for ongoing services rendered to holders of outstanding Units.  The
compensation  described above will be paid by  DWR and will not be paid directly
by any Limited Partner or the Partnership.
 
SUITABILITY STANDARDS
 
    Each investor (or person  entitled to exercise control  over assets of  such
investor's  account under an IRA or  other employee benefit plan) must represent
and warrant in  the Subscription and  Exchange Agreement and  Power of  Attorney
that  such  investor  and/or  other  person  has  received  this  Prospectus and
satisfies certain  investment and/or  suitability requirements  described  under
"--Investment Requirements" above.
 
                         INTEREST ON PARTNERSHIP ASSETS
 
    Once  the Partnership's assets are deposited with  DWR, they will be held in
customer segregated funds accounts established by  DWR. Effective on the day  of
the  Closing, DWR will credit the  Partnership at month-end with interest income
as if 80%  of the  Partnership's average  daily Net  Assets for  the month  were
invested  at a  prevailing rate  on U.S.  Treasury Bills.  For purposes  of such
interest payments, Net Assets  do not include monies  due the Partnership on  or
with  respect to forward contracts and  other futures interests but not actually
received  by  it  from   banks,  brokers,  dealers,   and  other  persons.   The
Partnership's  assets  held  by DWR  shall  be  used as  margin  solely  for the
Partnership's trading. The  Partnership's funds will  be invested together  with
other  customer segregated  funds or will  be held  in non-interest-bearing bank
accounts. In either case, the Partnership will be credited with interest at  the
rate  earned  by  DWR  on  its  U.S.  Treasury  Bill  investments  with customer
segregated funds (as if 80% of its assets were invested in U.S. Treasury Bills);
DWR will  retain any  interest earned  in excess  of the  interest paid  to  the
Partnership.  To  the extent  that the  assets  of the  Partnership are  held in
non-interest-bearing bank accounts,  DWR or  its affiliates  would benefit  from
compensating  balance treatment in connection with  the designation of a bank or
banks in  which  the  Partnership's  assets are  deposited  (I.E.,  DWR  or  its
affiliates  will receive favorable loan rates from  such bank or banks by reason
of such deposits). It is not possible to quantify compensating balance  benefits
at  present; however, while it is anticipated that such benefits will exceed the
interest required to be credited to  the Partnership, it is estimated that  they
should  not exceed 4% of the Partnership's  average annual Net Assets after such
credits. To  the  extent such  benefits  to DWR  or  its affiliates  exceed  the
interest  DWR is obligated to credit to the Partnership, they will not be shared
with the  Partnership.  Notwithstanding  the foregoing,  the  aggregate  of  (i)
brokerage commissions and transaction fees and costs payable by the Partnership,
and (ii) the net excess interest and compensating balance benefits to DWR or its
affiliates  (after crediting the  Partnership with interest  as described above)
shall not exceed 14% annually of the Partnership's average monthly Net Assets as
of the  last  day of  each  month during  each  calendar year.  See  "Investment
Program, Use of Proceeds and Trading Policies."
 
                                USE OF PROCEEDS
 
    The  entire proceeds of  this offering, together  with the General Partner's
capital contribution, will be deposited in the Partnership's accounts maintained
with DWR, and used  for trading in futures  interests. See "Investment  Program,
Use of Proceeds and Trading Policies."
 
                               TAX CONSIDERATIONS
 
    In the opinion of the General Partner's tax counsel, the Partnership will be
classified  as  a partnership  for federal  income  tax purposes  and not  as an
association taxable as a corporation.  Accordingly, the Partnership will not  be
subject  to federal  income tax. Each  Limited Partner in  computing his federal
income tax liability for a  taxable year will be  required to take into  account
his distributive share of all items of Partnership income, gain, loss, deduction
or  credit for  the taxable year  of the  Partnership ending within  or with the
taxable year of the Limited Partner, regardless of whether such Limited  Partner
has  received any distributions from the  Partnership. Such items of Partnership
gain or loss
 
                                       11
<PAGE>
retain their character (E.G., capital or ordinary) when allocated to the Limited
Partners. Moreover, all such allocations will increase or decrease each  Limited
Partner's  tax basis  in his  Units. The  allocation provisions  are designed to
reconcile tax allocations to economic allocations; however, no assurance can  be
given  that the  Internal Revenue  Service will  not challenge  such allocation,
especially in light of recently issued final regulations. See "Material  Federal
Income Tax Considerations."
 
    Taxes payable by partners with respect to Partnership profits may exceed the
amount  of Partnership distributions, if any, for a taxable year. Based upon the
current and contemplated activities of the Partnership, the General Partner  has
been  advised by  its legal  counsel that,  in such  counsel's opinion, expenses
incurred by the  Partnership should  not be subject  to the  limitations on  the
deductibility  of certain miscellaneous itemized  expenses, except to the extent
that the Internal Revenue Service promulgates regulations that so provide.
 
    Cash distributions  by  the  Partnership  and  amounts  received  or  deemed
received  upon the partial  or complete redemption of  a Limited Partner's Units
that do not exceed the  Limited Partner's aggregate basis  in his Units are  not
taxable.  However,  to the  extent cash  distributions  and amounts  received or
deemed received upon the partial redemption of a Limited Partner's Units  exceed
the  Limited Partner's  aggregate tax  basis in  his Units,  the excess  will be
taxable to the Limited Partner as though it were gain on the sale of his  Units.
Loss  will generally be  recognized on a  redemption of Units  only if a Limited
Partner redeems all of his Units in the Partnership and, following the  complete
redemption,  such Limited Partner has remaining tax basis in the Partnership. In
such case,  the  Limited  Partner will  recognize  loss  to the  extent  of  the
remaining  basis.  Subject  to an  exception  for certain  types  of Partnership
assets, such gain or  loss (assuming that the  Units constitute capital  assets)
will  be either  short-term capital  gain or loss  or long-term  capital gain or
loss, depending  upon the  length of  time that  Units were  held prior  to  the
distribution or redemption. See "Material Federal Income Tax Considerations."
 
    The  General Partner has been advised that, in the opinion of its counsel, a
Limited Partner  who is  a nonresident  alien individual,  foreign  corporation,
foreign  partnership,  foreign  trust,  or foreign  estate  (a  "Foreign Limited
Partner") should not  be deemed engaged  in a  trade or business  in the  United
States,  and should not be  subject to United States  federal income tax, solely
because such Foreign Limited Partner is a limited partner in the Partnership. In
the event the  Partnership's activities  should in  the future  not fall  within
certain  safe harbors from U.S.  trade or business status,  there is a risk that
all of  a  Foreign  Limited  Partner's  distributive  share  of  income  of  the
Partnership  would be  treated as  effectively connected  with the  conduct of a
trade or  business in  the United  States. In  that event,  the Foreign  Limited
Partner  would be taxed at regular rates  applicable to U.S. taxpayers and, if a
foreign corporation, could be subject to a 30% branch profits tax. See "Material
Federal Income Tax Considerations." As regards tax-exempt Limited Partners,  see
"Purchases by Employee Benefit Plans--ERISA Considerations."
 
                                       12
<PAGE>
                                  RISK FACTORS
 
    In  addition to the Risk Disclosure  Statement appearing at the beginning of
this Prospectus,  prospective subscribers  should consider  the following  risks
before subscribing for Units.
 
RISKS RELATING TO FUTURES INTERESTS TRADING AND THE FUTURES INTERESTS MARKETS
 
    FUTURES  INTERESTS TRADING IS  SPECULATIVE AND VOLATILE.   Futures interests
prices are highly volatile. Price movements of futures interests are  influenced
by,  among  other things:  changing  supply and  demand  relationships; weather;
agricultural,  trade,  fiscal,  monetary,  and  exchange  control  programs  and
policies  of governments; domestic and foreign political and economic events and
policies; and  changes in  interest rates.  The Partnership's  trading has  been
volatile. See "Performance Record of the Partnership."
 
    The  Partnership  is also  subject  to the  risk of  failure  of any  of the
exchanges on which it  trades or of their  clearinghouses, if any. In  addition,
under  certain  circumstances,  such  as  the inability  of  a  customer  of the
Commodity  Broker  or  the  Commodity  Broker  itself  to  satisfy   substantial
deficiencies  in such  customer's account, the  Partnership may be  subject to a
risk of  loss of  its funds  on deposit  with such  Commodity Broker.  See  "The
Futures, Options and Forward Markets."
 
    FUTURES  INTERESTS TRADING IS  HIGHLY LEVERAGED.  Because  of the low margin
deposits normally required  in futures interests  trading (typically between  2%
and  15% of  the value  of the  contract purchased  or sold),  an extremely high
degree of  leverage is  typical of  a futures  interests trading  account. As  a
result,  a relatively small price  movement in a futures  interest may result in
immediate  and  substantial  losses  to  the  investor.  The  Partnership   uses
substantial  leverage which could, depending on performance, result in increased
gain or loss. See  "Performance Record of the  Partnership." For example, if  at
the  time of purchase 10% of  the price of a contract  is deposited as margin, a
10% decrease in the price of the contract would, if the contract is then  closed
out,  result in  a total  loss of  the margin  deposit before  any deduction for
brokerage commissions. A decrease  of more than  10% would result  in a loss  of
more  than  the total  margin  deposit. See  "The  Futures, Options  and Forward
Markets--  Margins"  and  "The  Limited  Partnership  Agreement--Nature  of  the
Partnership."
 
    FUTURES  INTERESTS  TRADING MAY  BE ILLIQUID.    Most United  States futures
exchanges limit fluctuations in certain futures interests prices during a single
day by regulations  referred to as  "daily price fluctuation  limits" or  "daily
limits." Pursuant to such regulations, during a single trading day no trades may
be  executed at prices beyond  the daily limits. Once  the price of a particular
futures interest has  increased or  decreased by an  amount equal  to the  daily
limit,  positions in  the futures interest  can neither be  taken nor liquidated
unless traders are willing to  effect trades at or  within the limit. Prices  in
various  futures interests have  occasionally moved the  daily limit for several
consecutive days with little  or no trading.  Similar occurrences could  prevent
the  Partnership from promptly liquidating  unfavorable positions and subject it
to substantial losses. While  daily limits may  reduce or effectively  eliminate
the liquidity of a particular market, they do not limit ultimate losses, and may
in  fact substantially increase losses because  they may prevent the liquidation
of unfavorable positions. There is no limitation on daily price moves in trading
currency forward contracts.
 
    In addition, the Partnership may not be able to execute trades at  favorable
prices  if little  trading in  the futures  interests involved  is taking place.
Under some circumstances,  the Partnership  may be  required to  accept or  make
delivery  of the underlying commodity if the position cannot be liquidated prior
to its expiration  date. See "Investment  Program, Use of  Proceeds and  Trading
Policies--Trading  Policies." It also  is possible that an  exchange or the CFTC
may  suspend  trading  in  a   particular  futures  interest,  order   immediate
liquidation  and  settlement of  a particular  futures  interest, or  order that
trading in  a particular  futures interest  be conducted  for liquidation  only.
Similarly,  trading  in  options on  a  particular futures  interest  may become
restricted if trading in the underlying futures interest has become  restricted.
During  periods in  October 1987,  for example,  trading in  certain stock index
futures was too  illiquid for  markets to function  efficiently and  was at  one
point  actually suspended. See  "The Futures, Options  and Forward Markets." The
principals who deal in the forward contract markets are
 
                                       13
<PAGE>
not required to continue  to make markets in  the forward contracts they  trade.
There  have been  periods during which  certain participants  in forward markets
have refused to quote prices for forward contracts or have quoted prices with an
unusually wide spread between the  price at which they  are prepared to buy  and
that at which they are prepared to sell.
 
    SPECIAL  RISKS ASSOCIATED WITH  FORWARD TRADING.   The Partnership trades in
forward  contracts,  primarily   currency  forward  contracts.   Based  on   the
anticipated  allocation of the Partnership's  assets among the Trading Advisor's
trading programs, forward contracts  are expected to comprise  up to 50% of  the
Partnership's trading activities. A forward contract is a contractual obligation
to  purchase or sell a specified quantity of  a commodity at a specified date in
the future  at  a  specified price  and,  therefore,  is similar  to  a  futures
contract.  However,  forward contracts  are not  traded on  exchanges and,  as a
consequence, investors  in forward  contracts are  not afforded  the  regulatory
protections  of such  exchanges or  the CFTC; rather,  banks and  dealers act as
principals in such markets.  Neither the CFTC  nor banking authorities  regulate
trading  in  forward  contracts on  currencies,  and  foreign banks  may  not be
regulated by any United States governmental agency.
 
    Generally, when the Trading Advisor instructs the Partnership to either sell
or buy a particular currency or other forward contract, DWR will do back-to-back
principal trades in  order to carry  out such instructions.  DWR, as  principal,
will  arrange bank lines of credit and  contract with a United States or foreign
bank or  dealer to  make or  take future  delivery of  a specified  quantity  of
currency or other commodity at a negotiated price. DWR, again as principal, will
in  turn contract with  the Partnership to  make or take  future delivery of the
same specified quantity of  currency or other commodity  at the same price.  DWR
will  charge the Partnership a transaction  fee for effecting a forward contract
transaction, but will not attempt  to profit from any  mark-up or spread on  the
trade with the Partnership.
 
    Because performance of forward contracts on currencies and other commodities
is  not guaranteed by any exchange  or clearinghouse, the Partnership is subject
to the  risk  of the  inability  or refusal  to  perform with  respect  to  such
contracts  on the  part of the  principals or  agents with or  through which the
Partnership trades. Currently  the sole counterparty  with whom the  Partnership
trades  is  DWR.  Any  such  failure  or  refusal,  whether  due  to insolvency,
bankruptcy or other causes, could subject the Partnership to substantial losses.
The Partnership and DWR will trade  forward contracts only with banks,  brokers,
dealers   and  other  financial  institutions  which  the  General  Partner,  in
conjunction with DWR, has determined to be creditworthy.
 
    The CFTC has published for comment  in the United States Federal Register  a
statement  concerning its jurisdiction over transactions in the foreign currency
markets, including  transactions of  the type  which may  be engaged  in by  the
Partnership.  In the future, the CFTC might assert that forward contracts of the
type entered into by the  Partnership constitute unauthorized futures  contracts
subject  to the CFTC's jurisdiction and attempt to prohibit the Partnership from
participating in  transactions  in  such  contracts.  If  the  Partnership  were
restricted  in  its  ability  to  trade in  the  currency  markets,  the trading
strategies of the Trading Advisor could be materially affected.
 
    SPECIAL RISKS ASSOCIATED WITH TRADING ON FOREIGN EXCHANGES.  The Partnership
trades in futures, forward,  and option contracts  on exchanges located  outside
the  United States where CFTC regulations do not apply. Based on the anticipated
allocation of  the  Partnership's assets  among  the Trading  Advisor's  trading
programs,  trading on foreign exchanges is expected to comprise up to 50% of the
Partnership's  trading  activities.  Some  foreign  exchanges,  in  contrast  to
domestic  exchanges, are "principals' markets" in which performance with respect
to a contract is the responsibility only of the individual member with whom  the
trader  has entered into a contract and not of the exchange or clearinghouse, if
any. In  the case  of trading  on  foreign exchanges,  the Partnership  will  be
subject  to the  risk of the  inability of,  or refusal by,  the counterparty to
perform  with   respect   to  such   contracts.   Although  DWR   monitors   the
creditworthiness   of   the  foreign   exchanges   and  clearing   brokers  with
 
                                       14
<PAGE>
which it  does  business  for clients,  DWR  does  not have  the  capability  to
precisely  quantify the Partnership's exposure to  risks inherent in its trading
activities on foreign exchanges, and as a  result, the risk is not monitored  by
DWR on an individual client basis (including the Partnership).
 
    Trading  on foreign exchanges may involve certain other risks not applicable
to trading on United States exchanges,  such as the risks of exchange  controls,
expropriation, burdensome or confiscatory taxation, moratoriums, or political or
diplomatic events. In addition, certain foreign markets are newly formed and may
lack  personnel  experienced in  floor trading  as well  as in  monitoring floor
trades for compliance with exchange rules.  For an additional discussion of  the
credit  risks relating to trading on foreign exchanges, see "Risk Factors--Risks
Relating to Futures  Interests and the  Futures Interest Markets--Special  Risks
Associated with Trading on Foreign Exchanges."
 
    Furthermore,  as the Partnership determines its  Net Assets in United States
dollars, with respect to trading on  foreign markets the Partnership is  subject
to  the risk of fluctuation in the  exchange rate between the local currency and
dollars, and to  the possibility  of exchange controls.  Unless the  Partnership
hedges  itself against fluctuations in exchange  rates between the United States
dollar and the currencies  in which trading is  done on such foreign  exchanges,
any  profits  which  the Partnership  might  realize  in such  trading  could be
eliminated as a result of adverse changes in exchange rates, and the Partnership
could even incur  losses as  a result  of any  such changes.  See "The  Futures,
Options and Forward Markets--Regulations."
 
    SPECIAL  RISKS ASSOCIATED  WITH TRADING OF  OPTIONS ON FUTURES.   Options on
futures contracts  and options  on  physical commodities  are traded  on  United
States  commodity  exchanges and  may be  traded by  the Partnership  on certain
foreign exchanges.  The  Partnership is  authorized  to trade  options  and  the
Trading  Advisor has  included options  in its  trading. Each  such option  is a
right, purchased  for a  certain price,  to either  buy or  sell the  underlying
futures  contract or physical  commodity during a  certain period of  time for a
fixed price. Such trading involves risks substantially similar to those involved
in trading  futures  contracts  in  that  options  are  speculative  and  highly
leveraged.  Specific  market movements  of  the underlying  futures  contract or
physical commodity cannot be accurately predicted. The purchaser of an option is
subject to the  risk of  losing the  entire purchase  price of  the option.  The
writer of an option is subject to the risk of loss resulting from the difference
between  the premium received for  the option and the  price of the commodity or
futures contract underlying the option which the writer must purchase or deliver
upon  exercise  of  the   option.  See  "The   Futures,  Options,  and   Forward
Markets--Options on Futures."
 
    THE  PARTNERSHIP HAS CREDIT  RISK TO DWR.   The Partnership  has credit risk
because DWR acts  as the futures  commission merchant or  the sole  counterparty
with  respect  to  most of  the  Partnership's assets.  Exchange  traded futures
contracts are  marked to  market on  a  daily basis,  with variations  in  value
credited  or charged  to the  Partnership's account  on a  daily basis.  DWR, as
futures commission  merchant  for  the  Partnership's  exchange  traded  futures
contracts,  is required, pursuant to CFTC regulations, to segregate from its own
assets, and for the sole benefit of  its commodity customers, all funds held  by
DWR with respect to exchange traded futures contracts, including an amount equal
to  the net unrealized gain  on all open futures  contracts. With respect to the
Partnership's off-exchange traded foreign currency forward contracts, there  are
no  daily settlements of  variations in value.  See "Management's Discussion and
Analysis  of   Financial   Condition  and   Results   of   Operations--Financial
Instruments."
 
    POSSIBLE  EFFECTS OF SPECULATIVE  POSITION LIMITS.  The  CFTC and the United
States futures exchanges  have established  limits referred  to as  "speculative
position  limits" or  "position limits"  on the  maximum net  long or  net short
futures or options contract  position which any person  or group of persons  may
own, hold, or control in particular futures or options contract.
 
    All  futures and option accounts owned, controlled or managed by the Trading
Advisor and its principals will be combined for position limit purposes, to  the
extent  they may  be applicable.  In this  connection, the  Management Agreement
provides   that    if   speculative    position   limits    are   exceeded    by
 
                                       15
<PAGE>
the  Trading Advisor  in the  opinion of  independent counsel,  the CFTC  or any
regulatory body, exchange, or board, the Trading Advisor and its principals  and
affiliates will promptly liquidate positions in all of their accounts, including
the  Partnership's account, as to which  positions are attributed to the Trading
Advisor, as nearly as possible in proportion to the accounts' respective amounts
available for trading  (taking into  account different degrees  of leverage  and
"notional  equity") to the  extent necessary to  comply with applicable position
limits. See "The Management Agreement." From time to time, the trading  approach
or  instructions of the Trading  Advisor may have to  be modified, and positions
held by the Partnership may have to  be liquidated, in order to avoid  exceeding
such  limits.  Such modification  or liquidation,  if required,  could adversely
affect the operations and  profitability of the  Partnership. See "Conflicts  of
Interest--Management  of Other Accounts by the Trading Advisor." The Partnership
is also subject to the same speculative  position limits and may have to  modify
or  liquidate positions if such limits are, or  are about to be, exceeded by the
Partnership as  a  whole. Speculative  position  limits are  not  applicable  to
forward  contract  trading,  although  the  principals  with  which  DWR  or the
Partnership may deal in the forward markets may limit the positions available to
DWR or the Partnership as a consequence of credit considerations.
 
RISKS RELATING TO THE PARTNERSHIP AND THE OFFERING OF UNITS
 
    PAST RESULTS NOT  NECESSARILY INDICATIVE  OF FUTURE PERFORMANCE.   The  past
performance   results  of  the  Partnership  (see  "Performance  Record  of  the
Partnership"), are not necessarily indicative  of the future performance of  the
Partnership.
 
    SUBSTANTIAL  CHARGES  TO THE  PARTNERSHIP.   The  Partnership is  subject to
substantial charges to its Net Assets from the payment of the monthly management
fee, brokerage  commissions, other  transaction fees  and costs,  administrative
expenses,  and any  extraordinary costs,  regardless of  whether the Partnership
realizes profits. For  the years ended  December 31, 1996,  1995, and 1994,  the
Partnership  had  total revenues  of  $28,663,110, $26,524,038,  and $3,634,209,
respectively, and  total expenses  of $10,269,161,  $8,066,200, and  $7,855,844,
respectively.  Because  the  incentive fee  which  the Partnership  pays  to the
Trading Advisor is determined on a quarterly rather than on an annual basis, the
Partnership may  be  subject to  substantial  incentive  fees in  any  given  12
consecutive  month period despite a decline  in the Partnership's Net Assets for
such period as a whole. See "Description of Charges to the Partnership."
 
    RESTRICTED INVESTMENT LIQUIDITY IN THE UNITS.  The Units cannot be  assigned
or  transferred except  on the  terms and  conditions set  forth in  the Limited
Partnership Agreement, and  there will be  no public market  for the Units.  See
"The Limited Partnership Agreement--Restrictions on Transfers or Assignments." A
Limited Partner, after proper notice has been given, may require the Partnership
to  redeem all or part of  his Units as of, but  not before, the sixth month-end
following the closing, in the manner described herein. Thereafter, Units may  be
redeemed  as of  the end of  any month.  However, no Limited  Partner may redeem
fractions of Units, except that fractions of Units may be redeemed if a  Limited
Partner  is redeeming in multiples of $1,000 or is redeeming his entire interest
in the  Partnership. Redemptions  of  Units are  subject to  redemption  charges
through  the twenty-fourth month  following the closing at  which such Units are
issued. The foregoing redemption charges and  the six month limitation will  not
apply  to Limited Partners who purchase Units pursuant to Exchanges. An investor
who purchases $500,000 or more  of Units will not  be subject to the  redemption
charges  described above. Similarly,  investors who are  Limited Partners in the
Partnership immediately prior to the Closing will not be subject to the  minimum
six-month  holding  period  or  the redemption  charges,  described  above, with
respect to  Units purchased  during the  Offering Period.  The right  to  obtain
payment  on  redemption is  contingent upon  (a)  the Partnership  having assets
sufficient to discharge its liabilities on the effective date of the redemption,
and (b) the timely receipt by the  General Partner of a Request for  Redemption.
All  liabilities of the Partnership  are accrued daily and  are reflected in the
daily Net  Asset Value  of  the Partnership.  See "Redemptions."  Under  certain
circumstances  (including, but  not limited  to, the  Partnership's inability to
liquidate or  a  delay in  liquidating  positions or  the  default or  delay  in
payments  due the Partnership  from dealers, brokers,  banks, or other persons),
the Partnership
 
                                       16
<PAGE>
may  delay  payment   to  Limited   Partners  requesting   redemptions  of   the
proportionate  part of the redemption requests represented by the sums which are
the subject of any such default or delay. See "Redemptions."
 
    CONFLICTS OF INTEREST  IN THE PARTNERSHIP  STRUCTURE.  DWR  and the  General
Partner  were instrumental  in the  organization of  the Partnership  and may be
deemed "promoters" of the Partnership within  the meaning of Rule 405 under  the
Securities  Act of 1933, as amended (the "1933 Act"). Moreover, the Partnership,
DWR and the  General Partner are  affiliated entities and  are represented by  a
single  counsel.  As a  consequence of  the  foregoing, there  is an  absence of
arm's-length negotiation with respect to some of the terms of this offering. See
"Conflicts of Interest."
 
    LIMITED PARTNERS WILL NOT PARTICIPATE IN MANAGEMENT.  Limited Partners  will
not  participate in the management  of the Partnership or  in the conduct of its
business. See  "The  Limited Partnership  Agreement--Management  of  Partnership
Affairs."  However,  the  Limited Partnership  Agreement  provides  that certain
actions may be taken upon the  affirmative vote of Limited Partners owning  more
than  50%  of  the  Units  then owned  by  Limited  Partners.  See  "The Limited
Partnership Agreement--Amendments; Meetings."
 
    RELIANCE ON  THE GENERAL  PARTNER.   A  Limited Partner  is relying  on  the
ability  of the General Partner in the selection of a successful trading advisor
for the Partnership. The selection by the General Partner of the Trading Advisor
involved numerous considerations. The General Partner evaluated the  performance
record of the Trading Advisor and determined if the Trading Advisor was suitable
for  the Partnership's overall trading approach, trading policies and investment
objectives. The General Partner  reviewed other aspects  of the Trading  Advisor
(including  the  prospective  Trading  Advisor's  trading  programs, experience,
volatility of  trading,  futures  interests traded,  amount  of  management  and
incentive  fees  normally charged,  reputation of  the  Trading Advisor  and its
personnel and amount  of funds  under management), and  made certain  subjective
judgments  in  retaining  the  Trading  Advisor.  Although  the  General Partner
carefully weighed the above factors in making its selections, other factors  not
considered  by the  General Partner  may also be  important. In  the future, the
General Partner may be required to terminate and replace the Trading Advisor  by
reason  of its  poor performance  or for other  reasons or  to retain additional
trading advisors for the Partnership and similar judgments will have to be  made
from time to time.
 
RISKS RELATING TO THE TRADING ADVISOR
 
    RELIANCE  ON THE TRADING  ADVISOR TO TRADE  SUCCESSFULLY.  Futures interests
trading decisions for  the Partnership  are made  by the  Trading Advisor,  upon
whose  judgment and abilities the success of the Partnership largely depends. No
assurance can be given that the trading programs utilized by the Trading Advisor
will prove successful under all or any market conditions.
 
    MARKET FACTORS MAY ADVERSELY INFLUENCE  TRADING PROGRAMS.  Any factor  which
may  lessen the prospect of  major trends in the  future (for example, increased
governmental control of, or participation  in, the currency markets) may  reduce
the  Trading Advisor's  ability to  trade profitably  in the  future. Any factor
which would  make  it  more  difficult  to execute  timely  trades,  such  as  a
significant  lessening  of  liquidity  in a  particular  market,  would  also be
detrimental to  profitability. As  a result  of these  factors and  the  general
volatility  of  the  futures  interests  markets,  investors  should  view their
investment as long term (at  least 2 years) in order  to permit the programs  of
the  Trading Advisor  to function  over time.  Further, the  Trading Advisor may
alter its programs from  time to time  in an attempt  to better evaluate  market
movements.  As a result of such periodic  modifications, it is possible that the
trading programs used by the Trading Advisor in the future may be different from
those presently in use.
 
    LIMITED TERM OF  THE MANAGEMENT AGREEMENT  MAY LIMIT ACCESS  TO THE  TRADING
ADVISOR.   The  Management Agreement with  the Trading Advisor  will continue in
effect for  two years  from the  date of  the Closing.  Thereafter, the  Trading
Advisor  may  terminate the  Management Agreement  upon  90 days'  prior written
notice to the Partnership. In  addition, the Management Agreement is  terminable
by  the Partnership at  any time without penalty  at any month  end upon 5 days'
prior written notice to the Trading Advisor, and at any time upon written notice
under certain circumstances specified therein. The Management Agreement is  also
terminable    by   the   Trading   Advisor   upon   30   days'   prior   written
 
                                       17
<PAGE>
notice to the  Partnership under  certain circumstances  specified therein.  See
"The Management Agreement." Upon the expiration or termination of the Management
Agreement,  the  General  Partner  will make  other  arrangements  for providing
trading advice. In the selection of any trading advisor upon the termination  of
a   Management  Agreement  (including  any  retention  of  the  Trading  Advisor
thereafter), the General Partner  will take into  account all relevant  factors,
including  the  prospective trading  advisor's trading  performance, experience,
volatility of  trading,  futures  interests traded,  amount  of  management  and
incentive  fees  normally charged,  reputation of  the  trading advisor  and its
personnel and amount of funds under management, as well as the trading  policies
and investment objectives of the Partnership. There can be no assurance that the
services  of a trading advisor will be available on the same or similar terms in
case of expiration or termination of a Management Agreement.
 
    POSSIBLE ADVERSE  EFFECTS OF  INCREASING THE  ASSETS TRADED  BY THE  TRADING
ADVISOR.   A  trading advisor  is limited in  the amount  of assets  that it can
successfully manage, both  by the difficulty  of executing substantially  larger
trades made necessary by the larger amount of equity under management and by the
restrictive  effect of  speculative position limits.  Increased equity generally
results in a  larger demand for  the same futures  interests among the  accounts
managed  by a  trading advisor.  Furthermore, while  there has  been substantial
debate on the subject, a considerable number of analysts believe that a  trading
advisor's  rate  of return  tends  to decrease  as  the amount  of  equity under
management increases. The Trading Advisor has not agreed to limit the amount  of
additional equity that it may manage. There can be no assurance that the Trading
Advisor's  trading programs will not be adversely affected by additional equity,
including the proceeds of this offering.
 
    TRADING DECISIONS BASED ON TECHNICAL TRADING APPROACH MAY NOT PERFORM  UNDER
CERTAIN  MARKET CONDITIONS.  Trading decisions  of the Trading Advisor are based
on "technical" trading  programs as  opposed to  "fundamental" trading  methods.
Fundamental  trading  methods  attempt  to  examine  external  factors  (such as
governmental policies, national and international political and economic events,
changing trade prospects, and similar factors which affect the supply and demand
for a particular futures interest) in order to predict future prices.  Technical
trading  systems, however, generate buy and sell  signals which are not based on
analysis of fundamental supply and demand factors, but rather are based, in most
cases, upon a  study of actual  daily, weekly, and  monthly price  fluctuations,
volume  variations and changes in open  interest and other related mathematical,
statistical or quantitative data utilizing charts and/or computers.
 
    The profitability  of both  technical and  fundamental analysis  in  futures
interests trading generally depends upon the accurate forecasting of major price
moves  or trends  in some futures  interests. No  assurance can be  given of the
accuracy of the forecasts or  the existence of some  major price move. The  best
trading  approach will not be profitable if there are sustained periods in which
there are no price  moves or trends  of the kind the  trading approach seeks  to
identify  and follow. In  the past, there have  been periods without discernible
trends and,  presumably, such  periods will  continue to  occur in  the  future.
Periods  without such  price moves  may produce  losses. Any  factor which would
lessen the prospect of major trends  occurring in the future (such as  increased
governmental control of or participation in the markets) may reduce the prospect
that  a particular trading approach will  be profitable in the future. Moreover,
any factor  which would  make it  more difficult  to execute  trades at  desired
prices in accordance with a trading approach (such as a significant lessening of
liquidity  in a particular  market) would also  be detrimental to profitability.
Many other  trading  approaches  utilize  similar  analyses  in  making  trading
decisions;  therefore, bunching of buy and sell  orders can occur which makes it
more difficult for a  position to be  taken or liquidated.  No assurance can  be
given  that the Trading Advisor's trading programs and trading decisions will be
successful under all or any market conditions.
 
    A limiting factor in the use of technical analysis is that such an  approach
generally requires price movement data which can be translated into price trends
sufficient  to dictate  a market  entry or  exit decision.  Any trading approach
which is based upon  such technical concepts may  not perform well when  futures
interests  markets are  trendless or erratic,  because a  technical approach may
fail to identify  a trend on  which action should  be taken or  it may react  to
minor  price movements and  thus establish a position  contrary to overall price
trends,  which  may  result  in   losses.  In  addition,  a  technical   trading
 
                                       18
<PAGE>
approach  may  underperform other  trading  approaches when  fundamental factors
dominate price  moves  within  a  given market.  For  example,  since  technical
analysis  generally  does  not take  into  account fundamental  factors  such as
supply, demand,  and  political and  economic  events (except  insofar  as  such
factors  may have influenced  price and other  technical data constituting input
information for such approach),  a technical trading approach  may be unable  to
respond  to fundamental causative events until  after their impact has ceased to
influence the markets; positions dictated by such resultant price movements  may
be incorrect in light of the fundamental factors then affecting the markets.
 
    The  calculations  which  underlie the  Trading  Advisor's  trading programs
involve many variables and  are determined primarily by  computer. The use of  a
computer  in  developing and  operating  a trading  system  does not  assure the
success of the  system because  a computer  is merely  an aid  in compiling  and
organizing   trading  information.  No  assurance  is  given  that  the  trading
strategies employed by the Trading Advisor will produce profits or will not lose
money.
 
    POSSIBLE EFFECTS  OF  OTHER  TREND-FOLLOWING  SYSTEMS.    Futures  interests
trading  systems employing trend-following signals,  based either exclusively on
technical analysis or on  a combination of  fundamental and technical  analysis,
are  not new. If many traders follow  very similar systems, similar buy and sell
orders can be placed at  or about the same time,  which makes it more  difficult
for  a position to  be established or  liquidated at a  given price. The General
Partner is aware of an  increase in both the  use of trend-following systems  in
recent  years and in the overall volume  of trading and liquidity of the futures
interests markets. However,  it is  difficult to  be certain  whether the  total
amount  of funds traded on a trend-following basis, either for futures contracts
as a whole or for  a particular futures interests,  is greater in proportion  to
the  overall volume and liquidity of markets presently than has been the case in
the past. While the effect  of any increase in  the proposition of funds  traded
pursuant  to trend-following systems  in recent years  cannot be determined, any
such increase could alter trading patterns or affect execution of trades to  the
detriment of the Partnership.
 
TAXATION AND REGULATORY RISKS
 
    POSSIBILITY  OF TAXATION  AS A  CORPORATION.   The General  Partner has been
advised by its legal counsel, Cadwalader, Wickersham & Taft, that in its opinion
under current  United States  federal income  tax (hereinafter  "federal  income
tax")  laws and regulations, the Partnership will be classified as a partnership
and not as an  association taxable as  a corporation. This  status has not  been
confirmed  by a  ruling from, and  such advice  is not binding  upon, the United
States Internal Revenue Service (the "Internal Revenue Service"). No such ruling
has been or will be requested. The facts and authorities relied upon by  counsel
in  their opinion may change  in the future. If the  Partnership were taxed as a
corporation for federal income tax purposes,  income or loss of the  Partnership
would  not be passed through to Partners and the Partnership would be subject to
tax on its income at  the rates of tax  applicable to corporations, without  any
deductions  for distributions to the Partners. In  addition, all or a portion of
distributions made to the Partners could be taxable to the Partners as dividends
or capital gains. See "Material Federal Income Tax Considerations."
 
    PARTNER'S TAX LIABILITY MAY  EXCEED DISTRIBUTIONS.   If the Partnership  has
profits  for a  taxable year,  such profit  will be  taxable to  the Partners in
accordance with their distributive shares of Partnership profit, whether or  not
the  profit actually  has been distributed  to the  Partners. Accordingly, taxes
payable by Partners with respect to Partnership profit may exceed the amount  of
Partnership  distributions, if any, for a taxable year. Further, the Partnership
may sustain losses offsetting such profit in a succeeding taxable year, so  that
Partners  may never  receive the profit  on which  they were taxed  in the prior
year. See "Material Federal Income Tax Considerations."
 
    POSSIBLE LIMITATION ON DEDUCTION OF CERTAIN EXPENSES.  The deductibility  of
certain miscellaneous itemized deductions is limited to the extent such expenses
exceed  2% of the  adjusted gross income  of an individual,  trust or estate. In
addition, certain of an individual's itemized deductions are further reduced  by
an  amount equal  to the lesser  of (i)  3% of such  individual's adjusted gross
income over a certain threshold amount and (ii) 80% of such itemized deductions.
Based upon  the activities  of the  Partnership, the  General Partner  has  been
advised  by its legal counsel  that in its opinion  various expenses incurred by
the Partnership should not be subject to these limitations except to the  extent
that  the Internal Revenue Service promulgates  regulations that so provide. See
"Material Federal Income Tax Considerations."
 
                                       19
<PAGE>
    POSSIBILITY  OF TAX AUDIT.  There can be no assurance that the Partnership's
tax return  will  not  be  audited  by the  Internal  Revenue  Service  or  that
adjustments  to such return will not be made as a result of such an audit. If an
audit results in an adjustment, Limited Partners may be required to file amended
returns (which  may themselves  also be  audited)  and to  pay back  taxes  plus
interest and/or penalties that may then be due. See "Material Federal Income Tax
Considerations."
 
    ABSENCE  OF  REGULATIONS APPLICABLE  TO  SECURITIES MUTUAL  FUNDS  AND THEIR
ADVISERS.   The Partnership  is not  registered as  an investment  company or  a
"mutual  fund" under  the Investment  Company Act  of 1940,  as amended  (or any
similar state law), and neither the  General Partner nor the Trading Advisor  is
registered  as an investment adviser under  the Investment Advisers Act of 1940,
as amended (or any  similar state law). Investors,  therefore, are not  accorded
the  protective measures  provided by  such legislation.  However, in accordance
with the provisions of the Commodity Exchange Act, as amended (the "CEAct"), the
regulations of the  CFTC thereunder and  the NFA rules,  the General Partner  is
registered  as a commodity pool operator, the Trading Advisor is registered as a
commodity trading  advisor,  and  DWR  is registered  as  a  futures  commission
merchant, each subject to regulation by the CFTC and each a member of the NFA in
such respective capacities.
 
    THE  FOREGOING RISK FACTORS DO  NOT PURPORT TO BE  A COMPLETE EXPLANATION OF
ALL THE RISKS INVOLVED  IN THIS OFFERING. POTENTIAL  INVESTORS SHOULD READ  THIS
PROSPECTUS IN ITS ENTIRETY BEFORE DETERMINING WHETHER TO INVEST IN THE UNITS.
 
                             CONFLICTS OF INTEREST
 
RELATIONSHIP OF THE GENERAL PARTNER TO THE COMMODITY BROKER
 
    The  General Partner is a wholly-owned subsidiary of Dean Witter, Discover &
Co. ("DWD"), a principal subsidiary of which, DWR, acts as the commodity  broker
for,  and receives  brokerage commissions  from, the  Partnership pursuant  to a
Customer Agreement.  Because the  General Partner  is affiliated  with DWR,  the
General Partner will have a conflict of interest between its responsibilities to
limit and reduce the brokerage commissions paid by the Partnership and otherwise
manage  the Partnership for the benefit of the Limited Partners and its interest
in obtaining for DWR favorable brokerage commissions. Most customers of DWR  who
maintain   commodity  trading  accounts  over   $1,000,000  pay  commissions  at
negotiated rates which are substantially less than the rate which is paid by the
Partnership. Four of the 22 currently actively trading commodity pools for which
Demeter acts  as general  partner are  charged flat-rate  asset based  brokerage
fees,  16 of  such commodity  pools are  charged brokerage  fees on  a roundturn
brokerage commission basis (I.E., a charge for entering and exiting each futures
interest transaction) and such  fees are subject to  a monthly asset-based  cap,
and  two are charged on a roundturn brokerage commission basis without a monthly
asset-based cap. See "The Commodity Broker" and "Fiduciary Responsibility."
 
    The General Partner selected the Trading Advisor and will participate in the
selection of any new trading advisor  for the Partnership. However, because  the
selection  of  trading advisors  who  engage in  a  high volume  of  trades will
increase the costs to DWR of serving as commodity broker for the Partnership (if
commissions  for  any   month  exceed  the   asset-based  cap  described   under
"Description  of  Charges  to the  Partnership"),  without DWR's  receipt  of an
offsetting increase in revenue, the General  Partner has an incentive to  select
trading  advisors and trading systems  which engage in a  volume of trades which
generate commission revenue up to, but not exceeding the cap.
 
    In addition, the  Partnership, DWR  and the General  Partner are  affiliated
entities  and  are represented  by a  single  counsel. As  a consequence  of the
foregoing, there is an absence of arm's-length negotiation with respect to  some
of the terms of this offering.
 
    While  the Customer Agreement  is nonexclusive, so  that the Partnership has
the right to seek  lower commission rates  from other brokers  at any time,  the
General  Partner  believes that  the Customer  Agreement and  other arrangements
between the  Partnership  and DWR  are  fair, reasonable  and  competitive,  and
represent  the  best  prices  and services  available,  considering  the matters
discussed in this
 
                                       20
<PAGE>
paragraph below and in the immediately following paragraph. In addition to DWR's
cost of executing futures interests trades  for the Partnership, DWR is  subject
to  the risk  and expense  of offering  the Units,  and the  General Partner, an
affiliate of  DWR,  will provide  ongoing  services to  the  Partnership,  which
include  administering  the redemption  of Units,  and  the General  Partner has
financial obligations as the general  partner of the Partnership. A  significant
portion  of the brokerage commissions to be  paid to DWR by the Partnership will
be paid by DWR to certain  of its employees for providing continuing  assistance
to Limited Partners to whom they have sold Units. Such DWR employees who provide
continuing advice to Limited Partners as to when and whether to redeem Units may
have  a conflict of interest by reason  of their continuing receipt of a portion
of the brokerage commissions paid to DWR by the Partnership.
 
    The General Partner will review the brokerage arrangements at least annually
to ensure they are fair, reasonable and competitive, and that they represent the
best price  and  services available,  taking  into consideration  the  size  and
trading  activity  of  the Partnership  and  the services  provided,  and costs,
expenses, and risk  borne, by DWR  and the General  Partner. See "The  Commodity
Broker" and "Fiduciary Responsibility."
 
    The Partnership trades in forward contracts through DWR. The General Partner
has  a conflict  of interest in  selecting its  affiliate as the  party with and
through which the Partnership  executes its forward  trades and selecting  other
persons  which  might be  able  to make  a  better price  or  superior execution
available to the Partnership. The General Partner will review the  Partnership's
forward  trading  arrangements from  time  to time  in  an attempt  to determine
whether such arrangements are competitive  with those of other comparable  pools
in  light of  the circumstances. See  "Risk Factors-- Risks  Relating to Futures
Interests Trading and  the Futures Interests  Markets--Special Risks  Associated
with Forward Trading" and "The Futures, Options and Forward Markets."
 
    DWR  and  the  General  Partner  may,  from  time  to  time,  be  subject to
conflicting demands in respect of their obligations to the Partnership and other
commodity pools  and  accounts.  Certain pools  may  generate  larger  brokerage
commissions  to  DWR,  resulting  in  increased  payments  to  DWR  employees as
described above. Since DWR employees  may receive greater compensation from  the
sale of units of one pool over another, such employees are subject to a conflict
of interest in providing advice to Limited Partners.
 
ACCOUNTS OF AFFILIATES OF THE GENERAL PARTNER, THE TRADING ADVISOR AND DWR
 
    While  the  General Partner  does not  trade futures  interests for  its own
account (other  than indirectly  as a  consequence of  its position  as  general
partner  of commodity pools),  certain officers, directors  and employees of the
General Partner, the Trading Advisor and DWR, and their affiliates,  principals,
directors,  officers, and employees,  may trade futures  interests for their own
accounts. The records of such trading will not be available to Limited Partners.
In addition, DWR is  a large futures  commission merchant, handling  substantial
customer  business  in  physical commodities  and  futures interests,  and  is a
clearing member of all of the major commodity exchanges in the United States. It
is possible that DWR will effect  transactions for the Partnership in which  the
other  party to such transactions is an employee of or otherwise affiliated with
the General Partner, DWR, or their  affiliates. Such persons might also  compete
with  the  Partnership in  bidding on  purchases or  sales of  futures interests
without knowing  that the  Partnership  is also  bidding.  It is  possible  that
transactions  for the officers, directors,  affiliates, employees, customers and
correspondents of  DWR, the  General Partner  or the  Trading Advisor  might  be
effected  when  similar  trades for  the  Partnership  are not  executed  or are
executed at less  favorable prices.  In addition,  certain of  the officers  and
directors  of the General Partner (who are also employees of and are compensated
by the  Commodity Broker)  may individually  receive from  DWR compensation  and
bonuses  based on various factors,  including brokerage commissions generated by
the Partnership. See "The General Partner" and "The Commodity Broker."
 
    The Limited Partnership Agreement provides that, except as described therein
or in  this Prospectus,  no  person may  receive,  directly or  indirectly,  any
advisory,  management,  or incentive  fee for  investment  advice who  shares or
participates  in   per   trade   commodity   brokerage   commissions   paid   by
 
                                       21
<PAGE>
the  Partnership. No commodity  broker for the Partnership  may pay, directly or
indirectly, rebates or "give ups" to the General Partner or any trading advisor,
and such  prohibitions  may  not  be circumvented  by  any  reciprocal  business
arrangements.
 
MANAGEMENT OF OTHER ACCOUNTS BY THE TRADING ADVISOR
 
    The  Management  Agreement  allows  the Trading  Advisor  to  manage futures
interests accounts in addition to the Partnership's account. The Trading Advisor
and its  principals  and  affiliates  may  at any  time  be  trading  their  own
proprietary  accounts,  advising  accounts  for  other  commodity  pools  and/or
individual customers, and  operating other  commodity pools,  and will  continue
such  activities in  the future.  The Trading  Advisor also  operates additional
trading programs and uses other trading programs in its management of  accounts,
some  of which programs  will not be  used in trading  for the Partnership. Such
other trading  programs  have in  the  past and  may  in the  future  experience
significantly  different performance results  than the programs  used in trading
for the Partnership. The  Trading Advisor is required  to aggregate futures  and
option  positions  in  other accounts  managed  by  it with  futures  and option
positions in the Partnership's account for speculative position limit  purposes.
Such  aggregation of positions could require the Trading Advisor to liquidate or
modify positions for all such accounts, and such liquidation or modification may
adversely affect the  Partnership. The Trading  Advisor may have  a conflict  of
interest  in rendering advice  because its compensation  for managing some other
accounts may exceed its compensation for managing the Partnership's account, and
therefore may provide an  incentive to favor such  other accounts. Moreover,  if
the   Trading  Advisor  makes  trading  decisions  for  such  accounts  and  the
Partnership's account  at  or  about  the same  time,  the  Partnership  may  be
competing  with such other accounts for the same or similar positions. While the
records of accounts of the Trading  Advisor's employees and accounts managed  by
the  Trading  Advisor  will  not  be made  available  to  Limited  Partners, the
Management Agreement permits the General Partner access to such records in order
to determine that  the Partnership's  account is traded  fairly. The  Management
Agreement  also provides that the Trading Advisor will deal with the Partnership
in a fiduciary capacity to the extent recognized by applicable law and will  not
enter  into transactions  where it  knowingly or  deliberately favors  itself or
another client over the Partnership.
 
CUSTOMER AGREEMENT WITH DWR
 
    Under the  Partnership's Customer  Agreement with  DWR, all  funds,  futures
interests  positions, securities,  and credits  carried for  the Partnership are
held as security for the Partnership's obligations to DWR; the margins  required
to  initiate or maintain open positions will  be as established by DWR from time
to time; and DWR may close out positions, purchase futures interests, or  cancel
orders at any time it deems necessary for its protection, without the consent of
the Partnership. The Partnership also has agreed to indemnify and defend DWR and
its  stockholders, employees, officers, directors and affiliates against certain
liabilities incurred by them by reason of acting as the Partnership's  commodity
broker.  DWR, the General Partner  or the Limited Partners  by majority vote may
terminate  the  brokerage  relationship  and  close  the  Partnership's  futures
interests  accounts at DWR at  any time upon 60  days' notice. If so terminated,
the Partnership  would  have  to  negotiate a  new  customer  agreement  with  a
commodity  broker  upon  terms and  conditions,  including  brokerage commission
rates, which cannot now be determined.
 
OTHER COMMODITY POOLS
 
    The General  Partner  is  or has  been  the  general partner  for  27  other
commodity  pools. DWR is the  commodity broker for such  pools and several other
commodity pools. Each may in the future establish and/or be the general  partner
or  commodity broker for  additional commodity pools,  and any such  pool may be
said to be in competition with the Partnership  in that any one or more of  such
pools might compete with the Partnership for the execution of trades.
 
                            FIDUCIARY RESPONSIBILITY
 
    Investors  should be  aware that  the General  Partner has  a fiduciary duty
under the Partnership  Act to the  Limited Partners to  exercise good faith  and
fairness in all dealings affecting the Partnership. The
 
                                       22
<PAGE>
General  Partner's  fiduciary duty  to the  Limited  Partners under  the Limited
Partnership Agreement is in accordance with  the fiduciary duty owed to  limited
partners  by  a  general partner  under  Delaware law.  The  Limited Partnership
Agreement prohibits  the  Limited Partners  from  limiting, by  any  means,  the
fiduciary  duty  of  the General  Partner  owed  to the  Limited  Partners under
statutory or common law. In the event  that a Limited Partner believes that  the
General  Partner has violated its responsibilities, the Limited Partner may seek
legal relief for himself and all other similarly situated Limited Partners or on
behalf of  the Partnership  under  the Partnership  Act, the  CEAct,  applicable
federal  and state securities laws and  other applicable laws to recover damages
from, or to require an accounting  by, the General Partner. The Trading  Advisor
also has a fiduciary responsibility under applicable law to the Partnership.
 
    The   Limited  Partnership  Agreement,  the   Customer  Agreement,  and  the
Management Agreement  generally  provide  that the  General  Partner,  DWR,  the
Trading  Advisor and their  "affiliates" (as defined  in the Limited Partnership
Agreement) shall not be liable to the Partnership, the Limited Partners, its  or
their  successors  or  assigns,  for any  act,  omission,  conduct,  or activity
undertaken by or on behalf of the Partnership which the General Partner, DWR  or
the Trading Advisor, as applicable, determines, in good faith, to be in the best
interests of the Partnership, unless such act, omission, conduct, or activity of
or  by the  General Partner,  DWR, the Trading  Advisor or  their affiliates, as
applicable, constituted misconduct or negligence.
 
    The Limited  Partnership  Agreement,  the Customer  Agreement,  the  Selling
Agreement,  and the Management Agreement  generally provide that the Partnership
will indemnify, defend, and hold harmless the General Partner, DWR, the  Trading
Advisor and their affiliates from and against any loss, liability, damage, cost,
or  expense (including attorneys' and accountants' fees and expenses incurred in
defense of any demands,  claims, or lawsuits)  actually and reasonably  incurred
arising  from acts, omissions, activities, or conduct undertaken by or on behalf
of the  Partnership,  including, without  limitation,  any demands,  claims,  or
lawsuits initiated by a Limited Partner (or assignee thereof), PROVIDED that (1)
the General Partner, DWR, or the Trading Advisor, as applicable, has determined,
in  good faith, that the  act, omission, activity or  conduct giving rise to the
claim for indemnification was in the best interests of the Partnership, and  (2)
the  act,  omission, activity,  or conduct  that  was the  basis for  such loss,
liability, damage,  cost,  or  expense  was not  the  result  of  misconduct  or
negligence.  Payment of  any indemnity to  such person by  the Partnership would
reduce the Net  Assets of the  Partnership. The General  Partner does not  carry
insurance  covering such  potential losses and  it is not  contemplated that the
Partnership   will   carry   liability   insurance   covering   its    potential
indemnification exposure.
 
    Notwithstanding the foregoing, in any action brought by a Limited Partner in
the  right of the Partnership, the General  Partner or any affiliate thereof may
only be indemnified to the extent and subject to the conditions specified in the
Partnership Act (which presently permits  indemnification of any partner to  the
extent  provided  in  the Limited  Partnership  Agreement, as  described  in the
immediately preceding  paragraph).  Also,  no  indemnification  of  the  General
Partner,  DWR, the Trading Advisor or  their affiliates by the Partnership shall
be permitted for losses, liabilities, or expenses arising from or out of alleged
violations of federal  or state  securities laws unless:  (1) there  has been  a
successful adjudication on the merits of each count involving alleged securities
law  violations as to  the particular indemnitee,  or (2) such  claims have been
dismissed with prejudice on the merits  by a court of competent jurisdiction  as
to  the particular indemnitee, or (3) a court of competent jurisdiction approves
a settlement of  the claims  against the  particular indemnitee  and finds  that
indemnification  of the settlement  and related costs  should be made, PROVIDED,
with regard to such court approval, the indemnitee must apprise the court of the
position  of  the  SEC,   and  the  positions   of  the  respective   securities
administrators  of Massachusetts, Missouri, Tennessee  and/or those other states
and jurisdictions in which the plaintiffs claim they were offered or sold Units,
with respect to indemnification for  securities laws violations, before  seeking
court  approval for indemnification. Note  that, with respect to indemnification
for  liabilities  arising  under  the  1933  Act  for  directors,  officers   or
controlling persons of the Partnership or the General Partner, it is the opinion
of the SEC that such indemnification is against
 
                                       23
<PAGE>
public policy, as expressed in the 1933 Act, and is therefore unenforceable. The
CFTC  has issued a  statement of policy relating  to indemnification of officers
and directors of a futures commission merchant (such as DWR) and its controlling
persons under  which  the CFTC  has  taken the  position  that whether  such  an
indemnification  is consistent with the policies  expressed in the CEAct will be
determined by the CFTC on a case-by-case basis.
 
                     PERFORMANCE RECORD OF THE PARTNERSHIP
 
PERFORMANCE RECORD
 
    Table 1 sets  forth the actual  past performance record  of the  Partnership
from the commencement of trading operations on February 1, 1991 through December
31,  1996.  Since the  commencement  of trading  operations,  all assets  of the
Partnership have been allocated to the Trading Advisor for trading. However, the
General Partner will  in the future  allocate the assets  of the Partnership  to
trading  systems of the Trading Advisor in proportions different than previously
employed, and will allocate assets of the Partnership to trading systems of  the
Trading Advisor never previously employed for the Partnership. These differences
from historical allocations may affect future performance, including greater (or
lesser) volatility of returns.
 
    INVESTORS  ARE  CAUTIONED  THAT THE  INFORMATION  SET FORTH  IN  THE CAPSULE
PERFORMANCE SUMMARY  AND FOOTNOTES  THERETO IS  NOT INDICATIVE  OF, AND  HAS  NO
BEARING  ON, ANY TRADING RESULTS WHICH MAY BE ATTAINED BY THE PARTNERSHIP IN THE
FUTURE, SINCE PAST RESULTS ARE NOT A  GUARANTEE OF FUTURE RESULTS. THERE CAN  BE
NO  ASSURANCE THAT THE PARTNERSHIP WILL MAKE ANY  PROFITS AT ALL OR WILL BE ABLE
TO AVOID INCURRING SUBSTANTIAL LOSSES. INVESTORS SHOULD ALSO NOTE THAT  INTEREST
INCOME  MAY CONSTITUTE A SIGNIFICANT PORTION  OF A COMMODITY POOL'S TOTAL INCOME
AND, IN CERTAIN INSTANCES, MAY GENERATE  PROFITS WHERE THERE HAVE BEEN  REALIZED
OR UNREALIZED LOSSES FROM FUTURES INTERESTS TRADING.
                                                                         TABLE 1
 
            PERFORMANCE OF DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
 
            Type of Pool:  Publicly-Offered Pool
            Inception of Trading:  February 1991
            Aggregate Capital Contributions:  $100,491,090
            Current Capitalization:  $87,312,143
            Largest Monthly % Drawdown (Month/Year):  (14.40)%-(1/92)
            Largest Month-End Peak-to-Valley Drawdown:  (25.65)%-(4
            months)(1/92-4/92)
 
<TABLE>
<CAPTION>
                                      1996       1995       1994       1993       1992       1991
MONTHLY RATES OF RETURN                 %          %          %          %          %          %
- ----------------------------------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                                 <C>        <C>        <C>        <C>        <C>        <C>
January...........................       4.15      (3.70)     (2.33)     (0.67)    (14.40)
February..........................      (4.54)     10.40      (1.61)      9.17      (9.10)     (1.04)
March.............................       1.61      11.65       5.45      (1.34)      0.21       5.63
April.............................       1.77       4.56       0.53       4.95      (4.64)     (0.73)
May...............................      (0.91)     (0.02)      1.34       2.32       0.45       1.68
June..............................       1.36      (1.29)      3.59       0.25      13.01       0.33
July..............................      (1.93)     (1.98)     (4.70)      7.41      13.09      (9.15)
August............................      (0.52)      2.38      (2.82)     (2.61)     10.57       0.05
September.........................       3.79      (1.47)      1.40      (0.42)     (7.37)      7.86
October...........................      11.85       0.86       1.79      (2.38)     (4.45)     (2.76)
November..........................       9.05       0.89      (4.34)     (1.17)      0.79       2.98
December..........................      (1.61)      1.72      (3.29)      3.56      (0.55)     22.87
Compound Annual (Period) Rate of
 Return...........................      25.50      25.37      (5.41)     19.88      (6.37)     27.68
</TABLE>
 
       PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS.
 
                                       24
<PAGE>
                              FOOTNOTES TO TABLE 1
 
    "DRAWDOWN"  MEANS  DECLINE IN  NET ASSET  VALUE  PER UNIT.  "WORST MONTH-END
PEAK-TO-VALLEY  DRAWDOWN"  AS  USED  HEREIN  IS  EQUIVALENT  TO  THE  "DRAWDOWN"
EXPERIENCED BY THE PARTNERSHIP, DETERMINED IN ACCORDANCE WITH CFTC RULE 4.10 AND
REPRESENTS  THE GREATEST PERCENTAGE  DECLINE FROM ANY  MONTH-END NET ASSET VALUE
PER UNIT WHICH  OCCURS WITHOUT  SUCH MONTH-END NET  ASSET VALUE  PER UNIT  BEING
EQUALED  OR EXCEEDED AS OF A SUBSEQUENT MONTH-END. IN DOLLAR TERMS, FOR EXAMPLE,
IF THE NET ASSET  VALUE PER UNIT OF  THE PARTNERSHIP DECLINED BY  $1 IN EACH  OF
JANUARY  AND FEBRUARY,  INCREASED BY  $1 IN  MARCH AND  DECLINED AGAIN  BY $2 IN
APRIL, A "PEAK-TO-VALLEY  DRAWDOWN" ANALYSIS CONDUCTED  AS OF THE  END OF  APRIL
WOULD  CONSIDER THAT "DRAWDOWN" TO  BE STILL CONTINUING AND  TO BE $3 IN AMOUNT,
WHEREAS IF THE  NET ASSET  VALUE OF A  UNIT HAD  INCREASED BY $2  IN MARCH,  THE
JANUARY-FEBRUARY  DRAWDOWN WOULD HAVE ENDED AS OF  THE END OF FEBRUARY AT THE $2
LEVEL. SUCH "DRAWDOWNS" ARE MEASURED ON THE BASIS OF MONTH-END NET ASSET  VALUES
ONLY, AND DO NOT REFLECT INTRA-MONTH FIGURES.
 
    "MONTHLY  RATE OF RETURN"  IS NET PERFORMANCE FOR  THE MONTH (GROSS REALIZED
PROFIT (LOSS),  PLUS  INCREASE  (DECREASE) IN  UNREALIZED  PROFIT  (LOSS),  PLUS
INTEREST  INCOME, MINUS BROKERAGE COMMISSIONS, MANAGEMENT AND INCENTIVE FEES AND
OTHER EXPENSES), DIVIDED BY THE BEGINNING NET ASSET VALUE FOR THE MONTH.
 
    "COMPOUND ANNUAL (PERIOD) RATE OF RETURN" IS CALCULATED BY MULTIPLYING ON  A
COMPOUND  BASIS  EACH  OF THE  MONTHLY  RATES OF  RETURN  AND NOT  BY  ADDING OR
AVERAGING SUCH MONTHLY RATES OF RETURN. FOR  PERIODS OF LESS THAN ONE YEAR,  THE
RESULTS ARE YEAR-TO-DATE.
 
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                             HISTORICAL PERFORMANCE
 
EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC
 
<TABLE>
<CAPTION>
 JAN-91      1000
<S>        <C>
Feb-91        989.63
Mar-91       1045.37
Apr-91       1037.69
May-91       1055.12
Jun-91        1058.6
Jul-91        961.72
Aug-91        962.26
Sep-91       1037.82
Oct-91       1009.13
Nov-91       1039.16
Dec-91       1276.79
Jan-92       1092.93
Feb-92        993.52
Mar-92        995.58
Apr-92        949.34
May-92        953.57
Jun-92        1077.6
Jul-92       1218.66
Aug-92        1347.5
Sep-92       1248.25
Oct-92       1192.66
Nov-92       1202.12
Dec-92       1195.52
Jan-93       1187.51
Feb-93       1296.45
Mar-93       1279.06
Apr-93       1342.32
May-93        1373.5
Jun-93       1376.94
Jul-93       1479.01
Aug-93       1440.37
Sep-93       1434.39
Oct-93       1400.24
Nov-93       1383.91
Dec-93       1433.13
Jan-94       1399.79
Feb-94       1377.32
Mar-94       1452.33
Apr-94       1460.03
May-94       1479.66
Jun-94       1532.76
Jul-94        1460.8
Aug-94       1419.62
Sep-94        1439.5
Oct-94       1465.23
Nov-94       1401.67
Dec-94       1355.58
Jan-95       1305.41
Feb-95       1441.19
Mar-95       1609.12
Apr-95       1682.52
May-95       1682.16
Jun-95       1660.54
Jul-95       1627.72
Aug-95       1666.45
Sep-95       1642.02
Oct-95       1656.06
Nov-95       1670.75
Dec-95       1699.44
Jan-96       1769.92
Feb-96       1689.64
Mar-96       1716.92
Apr-96       1747.26
May-96       1731.28
Jun-96       1754.76
Jul-96       1720.95
Aug-96       1712.08
Sep-96       1777.03
Oct-96       1987.62
Nov-96       2167.59
Dec-96       2132.79
</TABLE>
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
                                       25
<PAGE>
                 PORTFOLIO STRATEGY FUND VS. BARCLAY CTA INDEX
                             HISTORICAL PERFORMANCE
 
EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC
 
<TABLE>
<CAPTION>
           PORTFOLIO STRATEGY FUND   BARCLAY CTA INDEX
<S>        <C>                      <C>
Jan-91                        1000                 1000
Feb-91                      989.63                991.7
Mar-91                     1045.37              1034.14
Apr-91                     1037.69               1014.6
May-91                     1055.12               995.26
Jun-91                      1058.6              1024.82
Jul-91                      961.72               990.38
Aug-91                      962.26               971.37
Sep-91                     1037.82               997.79
Oct-91                     1009.13               988.71
Nov-91                     1039.16               991.28
Dec-91                     1276.79              1090.71
Jan-92                     1092.93               1041.3
Feb-92                      993.52              1014.12
Mar-92                      995.58               995.76
Apr-92                      949.34                987.8
May-92                      953.57               980.59
Jun-92                      1077.6              1024.13
Jul-92                     1218.66              1068.26
Aug-92                      1347.5              1092.83
Sep-92                     1248.25              1075.24
Oct-92                     1192.66              1077.28
Nov-92                     1202.12               1090.1
Dec-92                     1195.52              1080.73
Jan-93                     1187.51              1061.17
Feb-93                     1296.45              1119.21
Mar-93                     1279.06              1113.62
Apr-93                     1342.32              1149.25
May-93                      1373.5              1156.38
Jun-93                     1376.94              1167.71
Jul-93                     1479.01              1211.03
Aug-93                     1440.37              1173.37
Sep-93                     1434.39               1163.4
Oct-93                     1400.24              1156.65
Nov-93                     1383.91              1158.38
Dec-93                     1433.13              1192.79
Jan-94                     1399.79              1153.42
Feb-94                     1377.32              1136.82
Mar-94                     1452.33              1159.89
Apr-94                     1460.03              1139.36
May-94                     1479.66              1171.04
Jun-94                     1532.76              1200.31
Jul-94                      1460.8              1187.83
Aug-94                     1419.62              1150.89
Sep-94                      1439.5              1170.22
Oct-94                     1465.23              1171.16
Nov-94                     1401.67              1190.83
Dec-94                     1355.58                 1185
Jan-95                     1305.41              1163.79
Feb-95                     1441.19              1203.36
Mar-95                     1609.12              1280.61
Apr-95                     1682.52               1295.6
May-95                     1682.16              1302.02
Jun-95                     1660.54               1285.4
Jul-95                     1627.72              1269.59
Aug-95                     1666.45              1299.18
Sep-95                     1642.02              1297.36
Oct-95                     1656.06              1296.97
Nov-95                     1670.75              1310.46
Dec-95                     1699.44              1346.62
Jan-96                     1769.92              1382.45
Feb-96                     1689.64               1316.5
Mar-96                     1716.92               1324.4
Apr-96                     1747.26               1403.2
May-96                     1731.28              1375.56
Jun-96                     1754.76              1371.16
Jul-96                     1720.95               1348.4
Aug-96                     1712.08               1339.9
Sep-96                     1777.03              1372.86
Oct-96                     1987.62              1471.98
Nov-96                     2167.59              1490.95
Dec-96                     2132.79              1469.93
</TABLE>
 
    NOTE  THAT  WHILE THE  BARCLAY CTA  INDEX (PREPARED  BY THE  BARCLAY TRADING
GROUP, LTD., FAIRFIELD, IOWA) REFLECTS RESULTS NET OF ACTUAL FEES AND  EXPENSES,
IT  INCLUDES ACCOUNTS WITH TRADING ADVISORS  AND FEE STRUCTURES THAT DIFFER FROM
PUBLIC MANAGED FUTURES FUNDS (SUCH  AS THE PARTNERSHIP). ACCORDINGLY, WHILE  THE
BARCLAY  CTA  INDEX  IS BELIEVED  TO  BE  REPRESENTATIVE OF  MANAGED  FUTURES IN
GENERAL, THE  PERFORMANCE OF  PUBLIC MANAGED  FUTURES FUNDS  AS A  SUBCLASS  MAY
DIFFER. PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS.
 
                                       26
<PAGE>
                            SELECTED FINANCIAL DATA
 
    The following are the results of operations of the Partnership for the years
ended  December 31, 1996, 1995, 1994, 1993, and 1992. For the complete financial
statements of the Partnership, see page F-1 of this Prospectus. For  performance
information  with respect  to the  Partnership, see  "Performance Record  of the
Partnership."
 
<TABLE>
<CAPTION>
                                                                         FOR THE YEARS ENDED DECEMBER 31,
                                                           -------------------------------------------------------------
                                                              1996         1995        1994        1993         1992
                                                           -----------  ----------  ----------  -----------  -----------
                                                                $           $           $            $            $
<S>                                                        <C>          <C>         <C>         <C>          <C>
REVENUES
Trading Profit (Loss):
  Realized...............................................  26,235,502   23,275,553   2,385,705   24,274,880   28,150,575
  Net change in unrealized...............................    (567,233)      58,584  (1,311,896)   2,287,764  (29,499,962)
                                                           -----------  ----------  ----------  -----------  -----------
    Total Trading Results................................  25,668,269   23,334,137   1,073,809   26,562,644   (1,349,387)
Interest income (DWR)....................................   2,994,841    3,189,901   2,560,400    1,748,749    1,967,816
                                                           -----------  ----------  ----------  -----------  -----------
    Total Revenues.......................................  28,663,110   26,524,038   3,634,209   28,311,393      618,429
                                                           -----------  ----------  ----------  -----------  -----------
EXPENSES
Brokerage commissions (DWR)..............................   3,416,583    2,700,065   2,712,291    3,404,018    4,580,016
Management fees..........................................   3,281,267    3,332,702   3,650,550    4,110,706    3,957,675
Incentive fees...........................................   3,278,840    1,587,389   1,106,885    2,108,683      --
Transaction fees and costs...............................     233,900      231,876     204,327      272,345      422,246
Bank fees................................................      31,571      106,168      73,791      140,579      --
Administrative expenses..................................      27,000      108,000     108,000      182,573      186,000
                                                           -----------  ----------  ----------  -----------  -----------
      Total Expenses.....................................  10,269,161    8,066,200   7,855,844   10,218,904    9,145,937
                                                           -----------  ----------  ----------  -----------  -----------
NET INCOME (LOSS)........................................  18,393,949   18,457,838  (4,221,635)  18,092,489   (8,527,508)
                                                           -----------  ----------  ----------  -----------  -----------
                                                           -----------  ----------  ----------  -----------  -----------
NET INCOME (LOSS) ALLOCATION
Limited Partners.........................................  17,979,664   18,129,110  (4,152,982)  17,852,273   (8,445,351)
General Partner..........................................     414,285      328,728     (68,653)     240,216      (82,157)
NET INCOME (LOSS) PER UNIT FOR PERIOD
Limited Partners.........................................      433.35       343.86      (77.55)      237.61       (81.27)
General Partner..........................................      433.35       343.86      (77.55)      237.61       (81.27)
TOTAL ASSETS AT END OF PERIOD............................  91,201,711   82,278,215  78,252,862  102,591,738   99,173,707
NET ASSET VALUE PER UNIT
Limited Partners.........................................    2,132.79     1,699.44    1,355.58     1,433.13     1,195.52
General Partner..........................................    2,132.79     1,699.44    1,355.58     1,433.13     1,195.52
</TABLE>
 
                                       27
<PAGE>
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                           OF FINANCIAL CONDITION AND
                             RESULTS OF OPERATIONS
 
    LIQUIDITY.  The assets of the Partnership are deposited with DWR in  futures
interests  trading accounts established  by DWR for the  Trading Advisor and are
used by the Partnership as margin to engage in trading. DWR holds such assets in
either designated  depositories  or  in  securities approved  by  the  CFTC  for
investment  of  customer funds.  See "Investment  Program,  Use of  Proceeds and
Trading Policies." The Partnership's  assets held by DWR  may be used as  margin
solely for the Partnership's trading. Since the Partnership's sole purpose is to
trade in futures interests, it is expected that the Partnership will continue to
own such liquid assets for margin purposes.
 
    The Partnership's investment in futures interests may, from time to time, be
illiquid. See "Risk Factors--Risks Relating to Futures Interests Trading and the
Futures  Interests  Markets--Futures Interests  Trading  May be  Illiquid." Most
United States futures exchanges limit  fluctuations in certain futures  interest
prices  during  a  single  day  by  regulations  referred  to  as  "daily  price
fluctuations limits" or "daily limits."  Pursuant to such regulations, during  a
single  trading day no trades may be  executed at prices beyond the daily limit.
If the price for a particular futures interest has increased or decreased by  an
amount  equal  to the  "daily  limit," positions  in  such futures  interest can
neither be taken nor liquidated unless  traders are willing to effect trades  at
or  within the limit. Futures interests prices have occasionally moved the daily
limit for  several consecutive  days  with little  or  no trading.  Such  market
conditions  could prevent the Partnership  from promptly liquidating its futures
interests  and  result  in  restrictions  on  redemptions.  However,  since  the
commencement  of trading by  the Partnership, there  has never been  a time when
illiquidity has affected  a material  portion of the  Partnership's assets.  See
"Redemptions."
 
    There  is no limitation on daily price moves in trading forward contracts on
foreign currency. The markets for some world currencies have low trading  volume
and  are illiquid, which may prevent the Partnership from trading in potentially
profitable  markets  or  prevent  the  Partnership  from  promptly   liquidating
unfavorable  positions in such markets and  subjecting it to substantial losses.
Either of these market conditions could result in restrictions on redemptions.
 
    CAPITAL RESOURCES.   The Partnership does  not have, nor  does it expect  to
have,  any  capital assets.  Redemptions and  sales of  additional Units  in the
future will affect  the amount  of funds  available for  investments in  futures
interests in subsequent periods. As redemptions are at the discretion of Limited
Partners,  it is not possible to estimate the amount and therefore the impact of
future redemptions.
 
    RESULTS OF OPERATIONS.  Due to the nature of the Partnership's business, the
Partnership's results  depend on  the Trading  Advisor and  the ability  of  its
trading   systems  to  take  advantage  of   price  movements  or  other  profit
opportunities in the futures interests markets. The following presents a summary
of the Partnership's operations for the years 1994, 1995 and 1996, and a general
discussion of the  Partnership's trading  activities in  certain markets  during
each  period. It is important to note,  however, that the Trading Advisor trades
in various markets at  different times and that  prior activity in a  particular
market  does not mean  that such market  will be actively  traded by the Trading
Advisor or  will be  profitable  in the  future.  Consequently, the  results  of
operations of the Partnership are difficult to discuss other than in the context
of  the Trading Advisor's trading  activities on behalf of  the Partnership as a
whole and how the Partnership has performed in the past. See "Performance Record
of the Partnership" and  "Selected Financial Data"  above and the  Partnership's
financial statements herein.
 
    RESULTS  OF  OPERATIONS  FOR  THE  FISCAL  YEAR  1994.    During  1994,  the
Partnership recorded a net  loss of 5.4% to  close out the year  at a Net  Asset
Value per Unit of $1,355.58.
 
    January  and  February  resulted  in  losses  from  the  financial  sectors,
particularly in global interest rate futures. Foreign exchange trading was  also
difficult as the choppy trendless market conditions prevalent in the second half
of   1993   continued.   Most  currency   losses   resulted   from  transactions
 
                                       28
<PAGE>
involving the German mark and  Japanese yen. March brought positive  performance
as   difficult  worldwide  financial  markets   provided  the  Partnership  with
opportunities from  short positions  in global  interest rates,  and  additional
gains  were recorded from  the Japanese yen,  German mark and  Swiss franc and a
strong upward trend in silver.
 
    The Partnership's second quarter  was profitable as  a strong downward  move
emerged  in the U.S. dollar relative  to major European currencies. The majority
of these gains resulted from long positions in the German mark, Swiss franc  and
British  pound. Additional gains resulted from  short positions in interest rate
futures as bond prices were pushed lower due in part to the weakness of the U.S.
dollar. Coffee  and crude  oil  futures also  generated profits  throughout  the
quarter.
 
    The third quarter proved to be a difficult period for the Partnership as the
dual  price moves of higher global interest  rates and a weak U.S. dollar, which
contributed to the second quarter's  profits, suddenly reversed in July.  Losses
were  generally  small but  widespread  through interest  rates,  currencies and
precious metals.
 
    The Partnership began the  fourth quarter with  positive performance from  a
move  downward  in the  value of  the U.S.  dollar. The  majority of  gains were
recorded from  long positions  in major  European currencies,  particularly  the
German mark. November's losses were largely the result of unprofitable positions
in currencies as the U.S. dollar again reversed from its previous decline, while
profits  in  sugar and  coffee  offset a  portion  of the  currency  losses. The
Partnership recorded  losses in  December  primarily as  a  result of  a  sudden
decrease in value of the U.S. dollar on December 28th.
 
    In  summary, 1994  was a year  filled with unfavorable  and difficult market
cycles to trade. The Partnership experienced positive performance in six of  the
months enabling the Partnership to keep losses for the year at a moderate level.
 
    RESULTS  OF  OPERATIONS  FOR  THE  FISCAL  YEAR  1995.    During  1995,  the
Partnership recorded profits of 25.4%  to finish the year  at a Net Asset  Value
per Unit of $1,699.44.
 
    In  January, the Partnership posted losses  primarily as a result of trading
in the  currencies markets.  Smaller losses  were the  result of  erratic  price
movement  in global interest rate futures  prices. During February and March the
Partnership recorded strong gains  as both U.S.  and international bond  futures
prices  increased, resulting in gains for the Partnership's long global interest
rate futures positions. Additional gains were  recorded from an increase in  the
value  of most major  European currencies and  the Japanese yen  relative to the
U.S. dollar.
 
    During April, the Partnership's long positions in the Japanese yen continued
to be profitable  as the  value of  the yen  moved higher.  Global bond  futures
prices  continued their  upward trend,  resulting in  gains. Smaller  gains were
recorded from  long crude  oil positions  as prices  in this  market also  moved
higher. During May, the Partnership recorded flat performance as gains from long
positions  in global  bond and S&P  500 index  futures were offset  by losses in
currencies and  commodities. In  June, the  Partnership recorded  net losses  as
international  bond futures retreated  from their previous  upward move. Smaller
losses were recorded in currencies.
 
    During July,  the  Partnership recorded  losses  primarily as  a  result  of
trading  in the  financial futures  markets. Smaller  losses were  recorded from
trading silver futures. Gains  were recorded during August  due to a decline  in
the  value of the Japanese yen. A continued upward move in Japanese stock prices
resulted in  additional  gains  for  long Nikkei  index  futures  positions.  In
September, the Partnership recorded losses from trading in European bond futures
as  prices experienced choppiness  throughout the month.  In currency trading, a
sharp and  sudden  increase in  the  value  of most  major  European  currencies
relative to the U.S. dollar on September 20 and 21 resulted in losses.
 
    The  Partnership recorded profits during October from currency trading, as a
decline  in  the  value  of  the  Japanese  yen  resulted  in  profits  for  the
Partnership's short yen positions. In other markets, smaller gains were recorded
in  U.S. Treasury bond and gold futures. During November, the Partnership's long
positions in European interest rate futures profited from upward price movement.
Additional gains
 
                                       29
<PAGE>
were recorded  from  U.S.  and  Japanese  interest  rate  futures  trading.  The
Partnership  concluded the year profitably as  a continued upward price trend in
global bond futures prices resulted in gains. In energy futures, long  positions
in crude oil profited from rising prices during the month.
 
    Overall,  the Partnership recorded strong  profits during 1995 due primarily
to trading in financial futures and currencies, as price trends in each of these
sectors provided  profit  opportunities  for  the  Trading  Advisor's  technical
trend-following programs.
 
    RESULTS  OF  OPERATIONS  FOR  THE  FISCAL  YEAR  1996.    During  1996,  the
Partnership recorded profits of 25.5%  to finish the year  at a Net Asset  Value
per Unit of $2,132.79.
 
    The  Partnership began the year by posting profits during January from short
positions in most  major currencies as  the value of  these currencies  declined
versus  the  U.S.  dollar.  Additional  gains  were  recorded  from  long global
financial futures  positions as  prices moved  higher. In  February losses  were
recorded as a result of trend reversals in the currency markets, as the value of
most major currencies moved sharply higher versus the U.S. dollar, and in global
interest  rate futures,  as a  sudden downward  price move  was experienced. The
Partnership finished the first quarter by recording profits primarily from  long
Australian  dollar  positions  as  its value  moved  higher  versus  other world
currencies. Additional gains were recorded from short Japanese yen positions, as
its value declined versus the U.S. dollar, as well as from trading financial and
energy futures.
 
    In April,  the Partnership  recorded gains  in currencies  from short  Swiss
franc  and German mark  positions as the  value of these  currencies moved lower
versus the U.S. dollar. Gains were  also recorded from long positions in  energy
and  agricultural futures as prices in  these markets increased. During May, the
Partnership experienced  losses due  primarily to  trendless price  movement  in
global  financial futures. Smaller losses were recorded in the energy markets as
a portion of April's  profits was given  back due to a  downward price move.  In
June,  the Partnership recorded gains due primarily to short positions in metals
as prices  declined  during the  month.  Gains  were also  recorded  from  short
Japanese yen positions as its value moved lower versus the U.S. dollar.
 
    The  profits recorded  during June  were offset  during July  as losses were
recorded from  short  Japanese yen  positions  as its  value  increased  sharply
relative to other world currencies. In August, small losses were experienced due
primarily  to  short-term  volatility  in the  value  of  most  major currencies
relative to the U.S.  dollar. A majority  of these losses  were offset by  gains
recorded  gains as  long global bond  futures positions profited  from an upward
price move. Additional gains  were recorded from  positions in energies,  metals
and agricultural commodities.
 
    During  the  fourth  quarter,  the  Partnership  profited  significantly due
primarily to long  global bond futures  positions as prices  continued to  trend
higher during October and November. Additional gains were recorded in currencies
from  long  British pound  positions  as its  value  also moved  higher. Smaller
currency gains were recorded from short  Japanese yen and Swiss franc  positions
as  the value of these currencies declined  versus the U.S. dollar. A portion of
these gains  was offset  by  losses during  December as  a  result of  a  sudden
reversal  lower in global bond futures prices early in the month. Losses in this
sector were  relatively  small compared  to  previous months'  profits  as  long
positions  in these markets (U.S., European, and Japanese bond futures) had been
reduced  in  early  December.  Smaller  losses  were  recorded  from  short-term
volatility in currencies.
 
    To  enhance the foregoing  discussion of results  of operations, prospective
investors can examine, line by line, the Partnership's Statements of  Operations
and  Statements of Financial Condition in its financial statements herein. Total
trading results were profitable  in each of 1994,  1995, and 1996 (although  the
Partnership incurred a net loss in 1994).
 
    INTEREST INCOME AND EXPENSES.  Interest income to the Partnership is derived
from  80% of  its assets earning  interest at  the prevailing rate  paid on U.S.
Treasury bills. The  size of the  assets and the  fluctuation of interest  rates
affect the resulting interest income annual totals. Increasing interest rates in
1994  resulted in significantly  higher interest income  to the Partnership over
1993. In 1995, the
 
                                       30
<PAGE>
increase in asset size was the primary reason for an increase in interest income
to the Partnership.  Interest income  to the Partnership  decreased during  1996
when  compared to 1995 as  a result of a modest  reduction in U.S. Treasury bill
rates, as well as a decrease in the Partnership's assets.
 
    In  regard  to  expenses  to  the  Partnership,  brokerage  commissions  and
transaction  fees and costs charged fluctuate based  on the volume of trading by
the  Partnership's  Trading  Advisors.   In  1994,  brokerage  commissions   and
transaction  fees and costs decreased  from 1993 as a  result of a corresponding
decrease in  trading  volume  by  the  Partnership.  Brokerage  commissions  and
transaction fees and costs only slightly fluctuated in 1995 as compared to 1994.
During 1996, brokerage commissions and transaction fees and costs charged to the
Partnership  in the aggregate increased  relative to 1995 due  to an increase in
trading volume.  Effective September  1, 1996,  commissions, together  with  the
transaction  fees and costs described below, have been capped at 13/20 of 1% per
month (a maximum 7.8%  annual rate; this represents  a reduction from the  prior
cap  of  3/4  of  1% per  month,  or  9%  annually, which  cap  did  not include
transaction fees  and  costs)  of  the Partnership's  Net  Assets  at  month-end
(determined before redemptions and distributions as of the end of such month).
 
    Management  fees to the Partnership  are charged at a  4% annualized rate of
Net Assets and fluctuate based only on  the size of Net Assets. Management  fees
have  decreased  each year  since 1993  as  a result  of decreasing  Net Assets.
Incentive fees are  paid on  a quarterly  basis or on  any redeemed  Units on  a
monthly  basis  if  the  Partnership  is  profitable.  In  1994,  incentive fees
decreased from 1993 as a  result of a decline  in trading performance. In  1995,
incentive  fees again  increased as a  result of  increased trading performance.
Incentive fees charged to the Partnership during 1996 increased relative to 1995
due to continued profitable performance of the Partnership.
 
    Administrative expenses to the  Partnership are costs  and expenses used  to
pay  legal, accounting, auditing, printing and distribution costs and are capped
at 0.25% per annum. These expenses on a gross basis have decreased over time  as
a result of reduced printing and other administrative costs. Bank fees were paid
by  the Partnership on a quarterly basis at  a rate of 1% of new appreciation in
the Partnership through July 31, 1996. In 1994, bank fees decreased from 1993 as
a result of a decline in trading  performance. Bank fees increased in 1995 as  a
result  of increased trading performance. Bank  fees for 1996 decreased relative
to 1995 due to  a decline in  trading performance through July.  As of July  31,
1996,  such  fees are  no longer  being charged  to the  Partnership due  to the
maturity of the Partnership's Letter of Credit arrangement.
 
    See  "Selected  Financial  Data"  and  "Independent  Auditors'  Report   and
Financial Statements of Dean Witter Portfolio Strategy Fund L.P." herein.
 
    FINANCIAL  INSTRUMENTS.  The Partnership is a party to financial instruments
with elements  of off-balance  sheet  market and  credit risk.  The  Partnership
trades futures, options, and forward contracts in interest rates, stock indices,
commodities,  currencies, petroleum and precious  metals. In entering into these
contracts, there  exists a  risk  to the  Partnership  (market risk)  that  such
contracts may be significantly influenced by market conditions, such as interest
rate volatility, resulting in such contracts being less valuable. If the markets
should  move  against  all  of  the  futures  interests  positions  held  by the
Partnership at the same time, and if  the Trading Advisor were unable to  offset
futures  interests positions of the Partnership,  the Partnership could lose all
of its assets and the Limited Partners would realize a 100% loss. In addition to
the internal controls  of the Trading  Advisor, the Trading  Advisor must be  in
compliance  with the Trading Policies of  the Partnership. Such Trading Policies
include standards for  liquidity and  leverage with which  the Partnership  must
comply.  The Trading Advisor  and the General  Partner monitor the Partnership's
trading  activities  to  ensure  compliance  with  the  Trading  Policies.   See
"Investment  Program, Use  of Proceeds and  Trading Policies--Trading Policies."
The General Partner may  (under the terms of  the Management Agreement)  require
the  Trading  Advisor to  modify  positions of  the  Partnership if  the General
Partner believes they violate the Partnership's Trading Policies.
 
    In addition to market  risk, in entering into  futures, options and  forward
contracts  there is a credit risk to  the Partnership that the counterparty on a
contract   will   not    be   able    to   meet   its    obligations   to    the
 
                                       31
<PAGE>
Partnership.  The ultimate counterparty of the Partnership for futures contracts
traded in the United States and most foreign exchanges on which the  Partnership
trades  is  the  clearinghouse  associated with  such  exchange.  In  general, a
clearinghouse is backed by the  membership of the exchange  and will act in  the
event of non-performance by one of its members or one of its member's customers,
and,  as  such, should  significantly reduce  this credit  risk. For  example, a
clearinghouse may cover  a default  by (i)  drawing upon  a defaulting  member's
mandatory  contributions  and/or  non-defaulting  members'  contributions  to  a
clearinghouse guarantee fund, established lines or letters of credit with banks,
and/or the clearinghouse's  surplus capital  and other available  assets of  the
exchange  and clearinghouse, or  (ii) assessing its members.  In cases where the
Partnership trades on a foreign exchange  where the clearinghouse is not  funded
or  guaranteed by the membership or where the exchange is a "principals' market"
in which performance is  the responsibility of the  exchange member and not  the
exchange  or a clearinghouse,  or when the  Partnership enters into off-exchange
contracts with a counterparty, the sole recourse of the Partnership will be  the
clearinghouse, the exchange member or the off-exchange contract counterparty, as
the  case may be. For  a list of the foreign  exchanges on which the Partnership
currently trades, see "Investment Program, Use of Proceeds and Trading Policies"
on page 41. For an additional discussion of the credit risks relating to trading
on foreign exchanges, see "Risk Factors  -- Risks Relating to Futures  Interests
and  the Futures  Interest Markets --  Special Risks Associated  with Trading on
Foreign Exchanges."
 
    DWR, in its business as an international commodity broker and as a member of
various futures exchanges,  monitors the creditworthiness  of the exchanges  and
clearing  members  of the  foreign  exchanges with  which  it does  business for
clients, including the Partnership. DWR employees  also from time to time  serve
on  supervisory or management committees of such exchanges. If DWR believed that
there were  a problem  with the  creditworthiness of  an exchange  on which  the
Partnership  deals,  it would  so advise  the General  Partner. With  respect to
exchanges of which DWR is not a  member, DWR acts only through clearing  brokers
it  has determined to  be creditworthy. If  DWR believed that  a clearing broker
with which  it  deals on  behalf  of clients  were  not creditworthy,  it  would
terminate its relationship with such broker.
 
    While DWR monitors the creditworthiness and risks involved in dealing on the
various  exchanges (and their  clearinghouses) and with  other exchange members,
there can  be no  assurance that  an exchange  (or its  clearinghouse) or  other
exchange member will be able to meet its obligations to the Partnership. DWR has
not  undertaken to indemnify the Partnership  against any loss. Further, the law
is  unclear,  particularly   with  respect  to   trading  in  various   non-U.S.
jurisdictions,  as to whether DWR has  any obligation to protect the Partnership
from any liability in the event that an exchange or its clearinghouse or another
exchange  member  defaults  on  its  obligations  on  trades  effected  for  the
Partnership.
 
    Although  DWR  monitors the  creditworthiness of  the foreign  exchanges and
clearing brokers with which it does business for clients, DWR does not have  the
capability to precisely quantify the Partnership's exposure to risks inherent in
its  trading activities on foreign exchanges, and,  as a result, the risk is not
monitored by DWR on an individual  client basis (including the Partnership).  In
this  regard,  DWR must  clear its  customer  trades through  one or  more other
clearing brokers on each exchange where DWR is not a clearing member. Such other
clearing brokers calculate the net margin requirements of DWR in respect of  the
aggregate  of all of  DWR's customer positions carried  in DWR's omnibus account
with that clearing broker.  Similarly, DWR calculates  a net margin  requirement
for  the exchange-traded futures  positions of each  of its customers, including
the Partnership.  Neither DWR  nor  DWR's respective  clearing brokers  on  each
foreign  futures exchange  calculates the  margin requirements  of an individual
customer, such  as  the Partnership,  in  respect of  the  customer's  aggregate
contract positions on any particular exchange.
 
    With  respect to forward contract trading,  the Partnership trades with only
those  counterparties  which  the  General  Partner,  together  with  DWR,  have
determined to be creditworthy. As set forth in the
 
                                       32
<PAGE>
Partnership's  Trading  Policies, in  determining creditworthiness,  the General
Partner and DWR consult with the Corporate Credit Department of DWR.  Currently,
the Partnership deals only with DWR as its counterparty on forward contracts.
    At December 31, 1996, open futures and forward contracts were:
 
<TABLE>
<CAPTION>
                                                                                CONTRACT OR
                                                                              NOTIONAL AMOUNT
                                                                             -----------------
                                                                                     $
<S>                                                                          <C>
EXCHANGE-TRADED CONTRACTS:
Financial Futures:
  Commitments to Purchase..................................................        65,197,000
  Commitments to Sell......................................................        70,325,000
Commodity Futures:
  Commitments to Purchase..................................................         5,005,000
  Commitments to Sell......................................................        30,977,000
Foreign Futures:
  Commitments to Purchase..................................................        42,509,000
  Commitments to Sell......................................................        67,755,000
OFF-EXCHANGE-TRADED FORWARD CURRENCY CONTRACTS
  Commitments to Purchase..................................................        89,146,000
  Commitments to Sell......................................................        38,531,000
</TABLE>
 
    A  portion of  the amounts  indicated as  off-balance sheet  risk in forward
currency contracts is due to offsetting  forward commitments to purchase and  to
sell  the same currency  on the same  date in the  future. These commitments are
economically offsetting, but  are not  offset in  the forward  market until  the
settlement date.
 
    The  net unrealized  gain on  open contracts is  reported as  a component of
"Equity in Commodity  futures trading  accounts" on the  Statement of  Financial
Condition  and  totaled  $3,053,880  at  December  31,  1996.  Of  this  amount,
$3,465,469 related to exchange-traded  futures contracts and $(411,589)  related
to off-exchange-traded forward currency contracts.
    Exchange-traded  futures contracts held  by the Partnership  at December 31,
1996  mature  through  December   1997.  Off-exchange-traded  forward   currency
contracts  held by  the Partnership  at December  31, 1996  mature through March
1997.
 
    The Partnership  also  has credit  risk  because  DWR acts  as  the  futures
commission  merchant  or the  sole  counterparty, with  respect  to most  of the
Partnership's assets. Exchange-traded futures contracts are marked to market  on
a  daily basis, with variations  in value settled on a  daily basis. DWR, as the
futures commission merchant for all of the Partnership's exchange-traded futures
contracts, is required, pursuant to regulations  of the CFTC, to segregate  from
its  own assets and for  the sole benefit of  its commodity customers, all funds
held by  DWR with  respect to  exchange-traded futures  contracts, including  an
amount  equal to the  net unrealized gain  on all open  futures contracts, which
totaled $91,312,827  at December  31, 1996.  With respect  to the  Partnership's
off-exchange-traded  forward currency contracts, there  are no daily settlements
of variations in value nor is there any requirement that an amount equal to  the
net  unrealized gain  on open forward  contracts be segregated.  With respect to
those off-exchange-traded contracts, the Partnership  is at risk to the  ability
of DWR, the counterparty on all such contracts, to perform.
 
    For  the year ended December  31, 1996, the average  fair value of financial
instruments held for trading purposes was as follows:
 
<TABLE>
<CAPTION>
                                                                   ASSETS       LIABILITIES
                                                               --------------  --------------
                                                                     $               $
<S>                                                            <C>             <C>
EXCHANGE-TRADED CONTRACTS:
  Financial Futures..........................................     102,149,000      96,292,000
  Commodity Futures..........................................      13,649,000      28,690,000
  Foreign Futures............................................     116,142,000      42,572,000
OFF-EXCHANGE-TRADED FORWARD CURRENCY CONTRACTS                    113,353,000     134,819,000
</TABLE>
 
    Inflation has not been,  and is not  expected to be, a  major factor in  the
Partnership's operations.
 
                                       33
<PAGE>
                   DESCRIPTION OF CHARGES TO THE PARTNERSHIP
 
    The  Partnership is subject to substantial  charges, all of which, including
any cap on such charges, are described in  detail below (the 13/20 of 1% of  Net
Assets  monthly cap on aggregate brokerage  commissions and transaction fees and
costs became effective  on September 1,  1996, and represents  a reduction  from
prior caps on such charges).
 
<TABLE>
<CAPTION>
                                      FORM OF                                    AMOUNT OF
     RECIPIENT                      COMPENSATION                                COMPENSATION
- -------------------  ------------------------------------------  ------------------------------------------
<S>                  <C>                                         <C>
The Trading Advisor  Monthly Management Fee.                     A  flat rate of 1/3 of 1% of Net Assets as
                                                                   of the  last day  of  each month  (a  4%
                                                                   annual rate).
                     Quarterly Incentive Fee.                    15%  of the Trading Profits experienced as
                                                                   of the end of each calendar quarter.
The Commodity        Brokerage Commissions.                      Roundturn commissions (the total costs for
 Broker                                                            both the  opening and  liquidating of  a
                                                                   futures   interest)  at   80%  of  DWR's
                                                                   published  non-member  rates  (which  is
                                                                   equal  to  an  average  of approximately
                                                                   $75), which  commissions (together  with
                                                                   the   transaction  fees  and  costs  de-
                                                                   scribed below) are  capped at (i)  13/20
                                                                   of  1% per month  (a maximum 7.8% annual
                                                                   rate) of the Partnership's Net Assets as
                                                                   of the last day of each month, with such
                                                                   cap applied separately on a per  trading
                                                                   system  basis; and (ii)  14% annually of
                                                                   the Partnership's  average  monthly  Net
                                                                   Assets,   aggregated  with   net  excess
                                                                   interest   and   compensating    balance
                                                                   benefits, as described below.
                     Transaction  charges for providing forward  Forward contract  fees average  $3-$6  per
                       trading  facilities,  the  execution  of    roundturn trade,  charges for  execution
                       forward   contract   transactions,   the    of cash  contract transactions  relating
                       execution  of cash contract transactions    to EFP  transactions  are  approximately
                       relating  to  exchange  of  futures  for    $2.50 per cash contract, and charges for
                       physicals ("EFP") transactions, and  the    the  use  of  the  institutional trading
                       use of DWR's institutional and overnight    desk or overnight execution facility are
                       execution facilities.                       up to $3  per roundturn  (the amount  of
                                                                   such   charges   is   included   in  the
                                                                   transaction fees  described below  under
                                                                   "Other"  and  is  subject  to  the  caps
                                                                   described therein).
</TABLE>
 
                                       34
<PAGE>
<TABLE>
<CAPTION>
                                      FORM OF                                    AMOUNT OF
     RECIPIENT                      COMPENSATION                                COMPENSATION
- -------------------  ------------------------------------------  ------------------------------------------
<S>                  <C>                                         <C>
                     Financial benefit to Commodity Broker from  The  aggregate  of   (i)  brokerage   com-
                       interest  earned  on  the  Partnership's    missions and transaction fees and  costs
                       assets in excess of the interest paid to    payable by the Partnership, as described
                       the  Partnership  and  from compensating    above and  below,  and (ii)  net  excess
                       balance treatment in connection with its    interest    and   compensating   balance
                       designation of a bank or banks in  which    benefits  to  DWR  (after  crediting the
                       Partnership assets are deposited.           Partnership with interest) are capped at
                                                                   14%  annually   of   the   Partnership's
                                                                   average  monthly  Net Assets  as  of the
                                                                   last day of each  month during a  calen-
                                                                   dar year.
Other                Ordinary administrative expenses            Ordinary  administrative  expenses,  which
                       (including   legal,   accounting,    and    have   been  equal   to  0.15%   of  the
                       auditing  expenses,   and  expenses   of    Partnership's  average annual Net Assets
                       printing and  distributing reports)  and    since inception, are capped at 0.25% per
                       all   extraordinary   expenses   of  the    year  of   the   Partnership's   average
                       Partnership.                                monthly Net Assets as of the last day of
                                                                   each   month.   Extraordinary   expenses
                                                                   cannot be estimated and are not  subject
                                                                   to any cap.
                     All transaction fees and costs incurred in  Transaction  fees  and  costs,  which have
                       connection   with   the    Partnership's    been equal to 0.31% of the Partnership's
                       futures   interests  trading  activities    average   annual   Net   Assets    since
                       (including    floor    brokerage   fees,    inception, are included  in (i) the  cap
                       exchange  fees, clearinghouse  fees, NFA    on brokerage commissions;  and (ii)  the
                       fees,  "give up" or  transfer fees (fees    cap on  aggregate brokerage  commissions
                       charged  by one  clearing brokerage firm    and net excess  interest and  compensat-
                       to   transfer  a   trading  position  to    ing balance benefits, each as  described
                       another  clearing  firm), and  any costs    above.
                       associated  with   taking  delivery   of
                       futures interests).
</TABLE>
 
1.  THE TRADING ADVISOR
 
    (a)   MONTHLY MANAGEMENT  FEE.  The  Partnership pays the  Trading Advisor a
monthly management fee equal to 1/3 of 1%  (a 4% annual rate) of Net Assets  (as
defined  herein on page 101) on the last day of each month (before deduction for
the  management  fees,   any  accrued  incentive   fees  and  any   redemptions,
distributions, or reallocations). For example, if Net Assets were $30,000,000 as
of  the end of  each month during a  year, the Trading  Advisor would receive an
aggregate monthly  management fee  for the  year  of $1,200,000  (1/3 of  1%  of
$30,000,000  per month, or $100,000 times  12). Since inception, management fees
have averaged 4.07% per year of the Partnership's average month-end Net  Assets.
For the fiscal year 1996 management fees equaled $3,281,267.
 
    If  during  any month  the Partnership  suspends  trading operations  or the
Partnership does not conduct business operations, or,  as a result of an act  or
material  failure to act  by the Trading  Advisor, the Trading  Advisor does not
provide its services on any trading day, then the management fee payable to  the
Trading  Advisor will be prorated based on  the ratio that the number of trading
days in the month in which the Partnership engaged in trading operations or,  as
appropriate,  in which  the Trading Advisor  provided its services  bears to the
total number of trading days in such month.
 
                                       35
<PAGE>
    If the Management Agreement is terminated on a date other than the end of  a
calendar month, the management fee described above will be determined as if such
date  were the end of a month, but such  fee will be prorated based on the ratio
by which the number of trading days in the month through the date of termination
bears to the total number of trading days in the month.
 
    (b)  QUARTERLY INCENTIVE FEE.   The Partnership pays an incentive fee  equal
to  15%  of the  Trading Profits  as of  the  end of  each calendar  quarter, as
qualified below.  "Trading Profits"  is defined  to mean  net futures  interests
trading  profits (realized and unrealized) earned on Net Assets allocated to the
Trading Advisor, including interest  income credited to  the Partnership by  DWR
(see  "Investment Program, Use of Proceeds  and Trading Policies"), decreased by
monthly management fees, brokerage commissions, floor brokerage fees, "give  up"
or  transfer fees,  NFA fees, other  transaction fees  and costs, administrative
expenses, and other fees and expenses (excluding incentive fees payable) of  the
Partnership; with such Trading Profits and items of decrease determined from the
last  date as of which an incentive fee was earned by the Trading Advisor or, if
no incentive fee  has been previously  earned by the  Trading Advisor, from  the
date  the Partnership commenced trading  to the date as  of which such incentive
fee calculation is made. Extraordinary expenses of the Partnership, if any, will
not be deducted in determining Trading Profits. Any accrued incentive fees  with
respect  to any Units redeemed will be  deducted and paid to the Trading Advisor
at the time of redemption. Since  inception, incentive fees have averaged  2.37%
per  year of the Partnership's average month-end Net Assets. For the fiscal year
1996, incentive fees equaled $3,278,840.
 
    If any payment of incentive fees is  made to the Trading Advisor on  account
of  Trading Profits earned by the Partnership and the Trading Advisor thereafter
fails to earn Trading Profits or experiences losses for any subsequent  calendar
quarter,  the  Trading  Advisor  will  be entitled  to  retain  such  amounts of
incentive fees previously paid to the Trading Advisor in respect of such Trading
Profits. However, no incentive fees will  be payable to the Trading Advisor  for
subsequent  calendar  quarters until  Trading Profits  have  been earned  by the
Partnership; PROVIDED,  HOWEVER, that  if Net  Assets are  reduced or  increased
because of redemptions, distributions, reallocations or subscriptions that occur
at  the  end  of,  or  subsequent  to, a  month  in  which  the  Trading Advisor
experiences a futures  interests trading  loss, the  trading loss  that must  be
recovered  before the Net Assets allocated to the Trading Advisor will be deemed
to experience Trading Profits will be increased or reduced proportionately.
 
    Thus, for  example,  if  the  Trading  Advisor  earned  Trading  Profits  of
$1,000,000  for the quarter ended March 31, the Trading Advisor would receive an
incentive fee of  $150,000 for  that period.  If, however,  the Trading  Advisor
experiences  realized  and/or unrealized  trading losses,  or fees  and expenses
which offset trading profits, so as to result in a $250,000 loss for the quarter
ended June 30, no  incentive fee will  be paid to the  Trading Advisor for  that
period. If the Trading Advisor is to earn an incentive fee for the quarter ended
September  30, the Trading Advisor will  have to earn profits exceeding $250,000
on behalf of the Partnership for that period, since the incentive fee is payable
measured from the last calendar  quarter as of which  an incentive fee was  paid
(I.E.,  March 31), and  not the immediately preceding  calendar quarter. For the
calendar quarter  ended September  30, Trading  Profits would  be equal  to  the
amount  of profits in excess  of $250,000. The Trading  Advisor would receive an
incentive fee  for such  quarter equal  to  15% of  such Trading  Profits.  (The
foregoing  examples assume no redemptions, reallocations or additional purchases
of Units during  the periods  in question,  which would  require adjustments  as
described above.)
 
                                       36
<PAGE>
    To ensure that all existing and new Units are treated the same with respect
to the calculation and payment of incentive fees, and to induce the Trading
Advisor to accept certain changes to the incentive fee provisions adverse to the
Trading Advisor, the General Partner and the Trading Advisor have agreed to
amend the incentive fee provisions of the Management Agreement, effective on the
date of the Closing. First, so as not to disadvantage existing investors in the
event there is a "loss" at the time of the Closing which must be recovered
through Trading Profits before an incentive fee would be paid, the "loss" will
be increased proportionately (as described above) based upon the Partnership's
funds immediately after the Closing as compared to the Partnership's funds
immediately prior to the Closing. Second, in consideration of the Trading
Advisor's willingness to accept such an increase in any "loss" which must be
recovered before it can receive an incentive fee, and to ensure that all
existing and new Units are treated the same with respect to the calculation and
payment of incentive fees, the General Partner and Trading Advisor agreed to
further amend the incentive fee provisions to provide that if the Closing is as
of the first business day after a month-end that is not the end of a calendar
quarter, and if at the Closing an incentive fee has accrued on Trading Profits,
the accrued incentive fee will become due and be paid to the Trading Advisor on
such closing date even if it does not coincide with the end of a calendar
quarter. The only disadvantage to Limited Partners from these changes is that,
if an accrued incentive fee on Trading Profits is paid at the end of a month
that is not the end of a calendar quarter and the Partnership thereafter loses
such Trading Profits before the end of that calendar quarter, an incentive fee
would have been paid during that quarter that otherwise would not have been paid
during that period. This would adversely affect a Limited Partner only if the
Partnership never earned Trading Profits to recover such losses, or if a Limited
Partner redeemed his Units before the losses were recovered. The General Partner
believes that the overall advantages to the Limited Partners of the amendments
outweigh this disadvantage.
 
    If the Management Agreement is terminated as of any date which is not the
end of a calendar quarter, the incentive fee described above, if applicable,
will be determined and paid as if such termination date were at the end of a
calendar quarter. See "The Management Agreement."
 
2.  DEAN WITTER REYNOLDS INC.
 
    (a)  BROKERAGE COMMISSIONS.  The Partnership pays DWR brokerage commissions
at a roundturn rate (covering both the taking and liquidation of a position) of
80% of DWR's published non-member rates for speculative accounts (which, for the
futures interests to be traded by the Partnership, is equal to an average of
$75). Effective September 1, 1996, commissions, together with the transaction
fees and costs described below, have been capped at 13/20 of 1% per month (a
maximum 7.8% annual rate; this represents a reduction from the prior cap of 3/4
of 1% per month, or 9% annually, which cap did not include transaction fees and
costs) of the Partnership's Net Assets at month-end (determined before
redemptions and distributions as of the end of such month) applied separately on
a per trading system basis. In addition, the aggregate of (i) brokerage
commissions and transaction fees and costs payable by the Partnership, and (ii)
the net excess interest and compensating balance benefits to DWR (after
crediting the Partnership with interest) cannot exceed 14% annually of the
Partnership's average month-end Net Assets during each calendar year. Since
inception, brokerage commissions have averaged 3.90% per year of the
Partnership's average month-end Net Assets. For the fiscal year 1996, brokerage
commissions equaled $3,416,583. The Partnership pays DWR brokerage commissions
for currency forward contract transactions at rates established with reference
to the brokerage commission rate charged on exchange-traded currency futures
contracts. DWR may from time to time adjust the United States dollar size of
currency forward contracts so that the brokerage commission rate charged on such
contracts will approximate the rate charged on exchange-traded currency futures
contracts of similar United States dollar value. In the case of currency futures
contracts traded on United States exchanges, the Partnership pays DWR brokerage
commissions at the rate described above.
 
    Although the rate being charged to the Partnership is 80% of DWR's published
non-member rates for speculative accounts, most customers of DWR who have over
$1,000,000 in futures interests accounts with DWR pay commissions at negotiated
rates which are substantially less than the rate paid by the Partnership,
notwithstanding the caps described above. Other customers of DWR may pay
 
                                       37
<PAGE>
brokerage commissions at rates which are substantially lower or which are higher
than the rates that the Partnership pays, and other commodity brokerage firms
may offer lower rates to accounts the size of the Partnership's account.
However, the General Partner believes that the brokerage commissions charged to
the Partnership are less than the brokerage rates charged certain other public
commodity pools.
 
    DWR paid all of the costs (aggregating approximately $900,000) incurred in
connection with the organization of the Partnership and the Initial Offering and
will pay all of the costs incurred in connection with this offering, estimated
to be approximately $900,000 in the aggregate. Such costs include legal,
accounting and auditing fees, printing costs, filing fees, escrow fees,
marketing costs (which include costs relating to sales seminars and the
preparation of customer sales kits and brochures), and other related fees and
expenses. The Partnership has not and will not reimburse DWR for any such
organizational and Initial Offering costs, or the costs of this offering, and
while DWR may recoup the costs of this offering from brokerage commissions paid
by the Partnership, the Partnership will not be liable for any such costs at any
time.
 
    (b)  FINANCIAL BENEFITS.  DWR benefits from the interest crediting
arrangements and possible compensating balance treatment in connection with its
designation of a bank or banks in which the Partnership's assets are deposited.
See "Investment Program, Use of Proceeds and Trading Policies."
 
3.  OTHER
 
    (a)  ADMINISTRATIVE AND EXTRAORDINARY EXPENSES.  The Partnership pays its
ordinary administrative expenses. Such expenses include legal, accounting,
auditing, recordkeeping, administration, computer, and clerical expenses
(including expenses incurred in preparing reports and tax information to Limited
Partners and regulatory authorities and expenses for specialized administrative
services), printing and duplication expenses, mailing expenses and filing fees.
Ordinary administrative expenses have averaged 0.15% per year of the
Partnership's average month-end Net Assets since inception. For the fiscal year
1996, ordinary administrative expenses equaled $27,000. The General Partner or
an affiliate thereof will pay and will not be reimbursed for any such
administrative expenses in excess of 0.25% per year of the Partnership's average
Net Assets (calculated on the basis of the average month-end Net Assets during
each calendar year). The General Partner shall not be reimbursed by the
Partnership for any costs incurred by it relating to office space, equipment,
and staff necessary for Partnership operations and administration of redemptions
of Units. The Partnership is obligated to pay any extraordinary expenses it may
incur. Extraordinary expenses will be determined in accordance with generally
accepted accounting principles, which generally include events that are both
unusual in nature and occur infrequently. For the period February 1991 through
December 1996, no extraordinary expenses were paid by the Partnership.
 
    (b)  TRANSACTION FEES AND COSTS.  The Partnership pays separately for all
floor brokerage fees, exchange fees, clearinghouse fees, NFA fees, "give up" or
transfer fees, any costs associated with taking delivery of futures interests,
fees for the execution of forward contract transactions, the execution of cash
transactions relating to exchange of futures for physicals ("EFP") transactions,
and the use of DWR's institutional and overnight execution facilities
(collectively, "transaction fees and costs"). The Partnership pays DWR a fee for
each forward contract, which averages between $3 and $6 per roundturn contract,
depending upon the size of the trades. DWR does not charge the Partnership a
mark-up or spread (a charge over the price at which DWR obtained the position
for its own account) on such forward trading. DWR charges a transaction fee of
approximately $2.50 for each cash contract transaction relating to an EFP
transaction, and a transaction fee for the use of the institutional execution
desk or overnight execution facilities which may be up to $3 per roundturn.
Since inception, transaction fees and costs averaged 0.31% per year of the
Partnership's average month-end Net Assets. Such percentage could be
significantly higher and may be lower, depending on the Partnership's trading
activity and the types of trades executed by the Trading Advisor. For the fiscal
year 1996, transaction fees and costs equaled $233,900. Effective September 1,
1996, the aggregate transaction fees and costs and brokerage commissions
incurred by the Partnership have been capped at 13/20 of 1% per month (a
 
                                       38
<PAGE>
maximum 7.8% annual rate) of the Partnership's month-end Net Assets applied
separately on a per trading system basis. In addition, these fees and costs are
subject to the 14% annual cap on aggregate brokerage commissions, transaction
fees and costs, and net excess interest and compensating balance benefits to
DWR, described under "--2. Dean Witter Reynolds Inc.--(a) Brokerage Commissions"
above.
 
    As long as redemption charges are imposed, as described under "Redemptions,"
the management fee, incentive fee and caps on brokerage commissions, transaction
fees and costs, ordinary administrative expenses, and net excess interest and
compensating balance benefits may not be increased. Thereafter, none of such
fees and caps may be increased unless Limited Partners are given prior notice
thereof (including a description of redemption and voting rights of Limited
Partners) and an opportunity to redeem their Units. Notwithstanding the
foregoing, in accordance with guidelines applied by certain state securities
regulators (see "Glossary--Blue Sky Glossary"), the Partnership's fees and
expenses are subject to the following limits: (a) the aggregate of (i) the
management fees payable by the Partnership, and (ii) the Partnership's customary
and routine administrative expenses (other than commodity brokerage commissions,
transaction fees and costs, incentive fees, legal and auditing fees and
expenses, and extraordinary expenses), shall not exceed 1/2 of 1% of the
Partnership's Net Assets per month, or 6% of the Partnership's Net Assets
annually; (b) the quarterly incentive fee payable by the Partnership to a
trading advisor for the Partnership shall not exceed 15% of the Partnership's
Trading Profits (as defined herein), PROVIDED that such incentive fee may be
increased by 2% for each 1% by which the aggregate fees and expenses described
in clause (a) of this sentence are limited below the 6% of Net Assets annual
limit thereon (I.E., if such fees and expenses are limited to 4% of Net Assets,
the maximum incentive fee payable may be increased to 19%); (c) the brokerage
commissions (excluding transaction fees and costs) payable by the Partnership to
DWR or any other commodity broker for the Partnership shall not exceed 80% of
DWR's or such other commodity broker's published non-member rates for
speculative accounts; and (d) the aggregate of (i) the brokerage commissions
payable by the Partnership to DWR or any other commodity broker for the
Partnership, (ii) the transaction fees and costs payable by the Partnership, and
(iii) the net excess interest and compensating balance benefits to DWR or any
other commodity broker for the Partnership (after crediting the Partnership with
interest, as described herein), shall not exceed 14% annually of the
Partnership's average monthly Net Assets as of the last day of each month during
each calendar year. The General Partner or an affiliate thereof will pay any
fees and expenses in excess of any such limits.
 
    The foregoing commissions, fees, costs and expenses may equal a significant
percentage of the annual average Net Assets of the Partnership. Based on the
foregoing fees and expenses of the Partnership, the Partnership will be required
to earn estimated annual net trading profits (after taking into account
estimated interest income based upon current rates of 5%) of 5.71% per year of
its average annual Net Assets in order to avoid depletion or exhaustion of its
assets. This assumes that the Trading Advisor's gross profits equal expenses
such that no incentive fees are earned by the Trading Advisor, and results from
the fact that in calculating management fees, accrued management fees are not
deducted from Net Assets.
 
4.  BREAK EVEN ANALYSIS
 
    Based upon the annual fees and expenses of the Partnership, the Partnership
will be required to earn estimated annual net trading profits (after taking into
account estimated interest income) of 9.35% per year of its average annual Net
Assets in order for a Limited Partner to pay the redemption charge and to recoup
its initial investment upon redemption after one year.
 
                                       39
<PAGE>
    Based upon the Net Asset Value per Unit as of December 31, 1996, the
Partnership must earn estimated annual net trading profits of $199.31 per Unit,
in order for a Limited Partner to recoup its initial investment upon redemption
of a Unit after one year after payment by the Partnership of its expenses and
payment of the 3% redemption charge (as calculated below).
 
<TABLE>
<S>                                                                                <C>
Net Asset Value per Unit (as of 12/31/96)(1).....................................  $2,132.79
Management Fee(2)................................................................      88.87
Brokerage Commissions(3).........................................................     101.54
Administrative Expenses(4).......................................................       5.33
Transaction Fees and Costs(5)....................................................      11.28
Redemption Fee(6)................................................................      65.96
Incentive Fee(7).................................................................      11.64
Less: Interest Income(8).........................................................      85.31
Amount of Trading Income Required for a Limited Partner to Recoup its Investment
  at the End of One Year.........................................................     199.31
Percentage of Net Asset Value per Unit...........................................       9.35%
</TABLE>
 
- ------------------------
NOTES
 
(1) Units of the Partnership are offered for sale at a purchase price equal to
    100% of the Net Asset Value of the Unit as of the close of business on the
    last day of the month immediately preceding the Closing.
 
(2) Monthly management fees are equal to 1/3 of 1% of the Net Assets on the last
    day of each month (a 4% annual rate).
 
(3) Brokerage commissions have averaged 3.90% per year of the Partnership's
    average month-end Net Assets since inception of trading. Brokerage
    commissions are charged at a roundturn rate of 80% of DWR's published
    non-member rates for speculative accounts (which for futures interests to be
    traded by the Partnership is equal to an average of $75). Effective
    September 1, 1996, aggregate commissions and transaction fees and costs have
    been capped at 13/20 of 1% per month (a maximum 7.8% annual rate) of the
    Partnership's Net Assets at month-end applied separately on a per trading
    system basis. For purposes of the above table, brokerage commissions were
    assumed to be 4.76%, based upon the historical expenses of the Trading
    Advisor's trading systems to which the Partnership's assets are expected to
    be allocated as of the Closing.
 
(4) Administrative expenses have averaged 0.15% per year of the Partnership's
    average month-end Net Assets since inception of trading. Administrative
    expenses in excess of 0.25% per year of the Partnership's average month-end
    Net Assets will be paid by the General Partner or an affiliate thereof and
    will not be reimbursed by the Partnership. For purposes of the above table,
    administrative expenses were assumed to be 0.25%.
 
(5) Transaction fees and costs have averaged 0.31% per year of the Partnership's
    average month-end Net Assets since inception of trading. Effective September
    1, 1996, aggregate transaction fees and costs and brokerage commissions have
    been capped at 13/20 of 1% per month of the Partnership's month-end Net
    Assets, applied on a per trading system basis, allocated to each such
    trading system. For purposes of the above table, transaction fees and costs
    were assumed to be 0.53%, based upon the historical expenses of the Trading
    Advisor's trading systems to which the Partnership's assets are expected to
    be allocated as of the Closing.
 
(6) Units redeemed at the end of one year from the date of purchase are subject
    to a 3% redemption charge.
 
(7) Incentive fees have been determined by assuming (i) interest income will be
    credited in the manner described in note (8) below (and will exceed the
    redemption fee), and (ii) the Trading
 
                                       40
<PAGE>
    Advisor's profits from futures interests trading will equal all of the other
    fees and expenses reflected in this table (I.E., the only "Trading Profits"
    on which incentive fees will be payable are from interest income).
 
(8) Effective on the day of the Closing, DWR will credit the Partnership at each
    month-end with interest income as if 80% of the Partnership's average daily
    Net Assets for the month were invested at a prevailing rate on U.S. Treasury
    Bills. Such rate was estimated at 5% for purposes of the calculation.
 
    The General Partner will furnish to each Limited Partner a monthly statement
describing the performance of the Partnership and setting forth, among other
things, aggregate management and incentive fees, brokerage commissions,
transaction fees and costs, administrative expenses, and other fees and expenses
incurred or accrued by the Partnership during the month and certain other
information. See "The Limited Partnership Agreement--Reports to Limited
Partners."
 
            INVESTMENT PROGRAM, USE OF PROCEEDS AND TRADING POLICIES
 
    The Partnership is a Delaware limited partnership, formed in August 1990 to
engage primarily in the speculative trading of futures interests. The entire
proceeds of this offering of Units and the capital contribution of the General
Partner will be deposited in the Partnership's accounts maintained with DWR, and
all of such proceeds will be allocated for use by the Partnership to engage in
futures interests trading pursuant to instructions provided by the Trading
Advisor. The Partnership may trade up to 75 different types of futures
interests, on both domestic and foreign markets, and may trade additional
futures interests as determined by the Trading Advisor. The Partnership's margin
commitments with respect to its U.S. futures positions have ranged, and are
anticipated to range, between 10% and 30% of Net Assets, although in certain
circumstances, the Partnership's margin levels could deviate substantially from
that range in the future. See "Risk Factors--Risks Relating to Futures Interests
Trading and the Futures Interests Markets--Futures Interests Trading is Highly
Leveraged." The Partnership's assets deposited with DWR will be segregated in
accordance with Section 4d(2) of the CEAct and CFTC regulations. From time to
time in connection with foreign currency contracts and foreign futures and
options contracts, the Partnership's assets may be deposited in accounts with
non-United States banks and foreign brokers, which are segregated on the books
of such banks or brokers for the benefit of DWR customers. The Partnership
currently trades from time to time on the following foreign futures exchanges:
the Deutsche Terminboerse, the Hong Kong Futures Exchange Ltd., the
International Petroleum Exchange of London, the London International Financial
Futures Exchange Ltd., the London Metals Exchange, the Marche a Terme
International de France, the Montreal Exchange, the Sydney Futures Exchange, the
Singapore International Monetary Exchange, the Tokyo International Financial
Futures Exchange and the Tokyo Stock Exchange. All such non-United States banks
and foreign brokers will be qualified depositories pursuant to relevant CFTC
Advisories. Such non-United States banks will be subject to the local bank
regulatory authorities and the foreign brokers will be members of the exchanges
on which the futures and option trades are to be executed and will be subject to
the regulatory authorities in the jurisdictions in which they operate. The
protections provided by such foreign regulatory authorities may differ
significantly from those provided by United States regulators. See "Risk
Factors--Risks Relating to Futures Interests Trading and the Futures Interests
Markets--Special Risks Associated with Forward Trading" and "--Special Risks
Associated with Trading on Foreign Exchanges."
 
    The Trading Advisor for the Partnership is John W. Henry & Company, Inc.
("JWH"). Subject to certain limitations, the Trading Advisor has authority and
responsibility for independently directing the investment and reinvestment in
futures interests of Net Assets. See "The Management Agreement." Since the
primary purpose of the Partnership is to achieve appreciation of its assets
through speculative trading in futures interests, the Partnership's ability to
succeed in that endeavor depends upon the success of the Trading Advisor's
trading programs.
 
                                       41
<PAGE>
    The assets of the Partnership will be traded pursuant to technical trading
programs developed by the Trading Advisor. See "The Trading Advisor--Description
of JWH's Trading Approach." See also "General Description of Trading
Approaches."
    The Trading Advisor is obligated to invest in accordance with the
Partnership's trading policies. These trading policies provide, among other
things, that the Trading Advisor may commit as margin up to, but no more than, a
certain percentage of funds under management. See "Trading Policies" below. The
General Partner, upon agreement with the Trading Advisor, which shall be at
their collective discretion, may reallocate the Partnership's funds among the
Trading Advisor's various trading programs.
 
    Effective on the day of the Closing, DWR will credit the Partnership at each
month-end with interest income as if 80% of the Partnership's average daily Net
Assets for the month were invested at a prevailing rate for U.S. Treasury Bills.
All of such funds will be available for margin for the Partnership's trading.
For the purpose of such interest payments, Net Assets do not include monies due
to the Partnership on or with respect to forward contracts and other futures
interests but not actually received by it from banks, brokers, dealers, and
other persons. The Partnership's funds will either be invested together with
other customer segregated funds or will be held in non-interest-bearing bank
accounts. In either case, the Partnership will be credited with interest at the
rate earned by DWR on its U.S. Treasury Bill investments with customer
segregated funds (as if 80% of the Partnership's assets were invested in U.S.
Treasury Bills); DWR will retain any interest earned in excess of the interest
paid to the Partnership. To the extent that the assets of the Partnership are
held in non-interest-bearing bank accounts, DWR or its affiliates will benefit
from compensating balance treatment in connection with DWR's designation of a
bank or banks in which the Partnership's assets are deposited, I.E., DWR or its
affiliates will receive favorable loan rates from such bank or banks by reason
of such deposits. It is not possible to quantify compensating balance benefits
at present; however, while it is anticipated that such benefits will exceed the
interest required to be credited to the Partnership, it is estimated that they
should not exceed 4% of the Partnership's annual average Net Assets after such
credits. To the extent that such benefits to DWR exceed the interest DWR is
obligated to credit to the Partnership, they will not be shared with the
Partnership. Notwithstanding the foregoing, the aggregate of (i) brokerage
commissions and transaction fees and costs payable by the Partnership, and (ii)
the net excess interest and compensating balance benefits to DWR or its
affiliates (after crediting the Partnership with interest as described above)
cannot exceed 14% annually of the Partnership's average month-end Net Assets
during each calendar year.
 
    Assets of the Partnership are not commingled with assets of any other
entity. Margin deposits and deposits of assets with a commodity broker do not
constitute commingling.
 
TRADING POLICIES
 
    Material changes may be made to the following Trading Policies only with the
prior written approval of Limited Partners owning more than 50% of Units then
outstanding. The General Partner will notify the Limited Partners within seven
business days after any material change in the Partnership's Trading Policies so
approved by the Limited Partners.
 
    1.  The Trading Advisor will trade only in those futures interests that have
been approved by the General Partner. The Partnership normally will not
establish new positions in a futures interest for any one contract month or
option if such additional positions would result in a net long or short position
for that futures interest requiring as margin or premium more than 15% of the
Partnership's Net Assets. In addition, the Partnership will, except under
extraordinary circumstances, maintain positions in futures interests in at least
two market segments (I.E. agricultural items, industrial items (including
energies), metal, currencies, and financial instruments (including stock,
financial, and economic indexes)) at any one time.
 
    2.  The Partnership will not acquire additional positions in any futures
interest if such additional positions would result in the aggregate net long or
short positions for all futures interests requiring as margin or premium for all
outstanding positions more than 66 2/3% of the Partnership's Net Assets. Under
certain market conditions, such as an abrupt increase in margins required by an
exchange or its
 
                                       42
<PAGE>
clearinghouse or an inability to liquidate open positions because of daily price
fluctuation limits or both, the Partnership may be required to commit as margin
amounts in excess of the foregoing limit. In such event, the Trading Advisor
will reduce its open positions to comply with the foregoing limit before
initiating new positions.
 
    3.  The Partnership will trade currencies and other commodities in the
interbank and forward contract markets only with banks, brokers, dealers, and
other financial institutions which the General Partner, in conjunction with DWR,
has determined to be creditworthy. In determining the creditworthiness of a
counterparty to a forward contract, the General Partner and DWR will consult
with the Corporate Credit Department of DWR which monitors participants in the
interbank and forward markets with which DWR deals on a regular basis.
 
    4.  The Trading Advisor will not generally take a position after the first
notice day in any futures interest during the delivery month of that contract,
except to match trades to close out a position on the interbank foreign currency
or other forward markets or liquidate trades in a limit market.
 
    5.  The Partnership will not employ the trading technique commonly known as
"pyramiding," in which the speculator uses unrealized profits on existing
positions in a given futures interest due to favorable price movement as margin
specifically to buy or sell additional positions in the same or a related
futures interest. Taking into account the Partnership's open trade equity on
existing positions in determining generally whether to acquire additional
futures interest positions on behalf of the Partnership will not be considered
to constitute "pyramiding."
 
    6.  The Partnership will not purchase, sell, or trade securities (except
securities approved by the CFTC for investment of customer funds). The
Partnership may, however, trade in futures contracts on securities and
securities indexes, options on such futures contracts, and other commodity
options.
 
    7.  The Partnership will not under any circumstances lend money to
affiliated entities or otherwise. The Partnership will not utilize borrowings
except if the Partnership purchases or takes delivery of commodities. Use of
lines of credit in connection with its forward trading does not, however,
constitute borrowing for purposes of this trading limitation.
 
    8.  The Partnership will not permit "churning" of the Partnership's assets.
 
    9.  If the Partnership borrows money, to the extent permitted by Trading
Policy 7, from the General Partner or any "affiliate" thereof (as defined in the
first sentence of Section 14(c) of the Limited Partnership Agreement), the
lending entity in such case (the "Lender") may not receive interest in excess of
its interest costs, nor may the Lender receive interest in excess of the amounts
which would be charged the Partnership (without reference to the General
Partner's financial abilities or guarantees) by unrelated banks on comparable
loans for the same purpose, nor may the Lender or any affiliate thereof receive
any points or other financing charges or fees regardless of the amount.
 
                                       43
<PAGE>
                                 CAPITALIZATION
 
    The following table sets forth the capitalization of the Partnership as of
December 31, 1996 and the pro forma capitalization of the Partnership adjusted
to reflect the proceeds (at the Net Asset Value of $2,132.79 per Unit at
December 31, 1996) from the sale during the Offering Period of the maximum
number of Units (45,000) offered by this Prospectus, and (ii) the capital
contribution required of the General Partner based on such capitalization of the
Partnership. There will be no difference insofar as sharing of profits and
losses are concerned between Units of Limited Partnership Interest and Units of
General Partnership Interest:
 
<TABLE>
<CAPTION>
                                                                             PRO FORMA(1)
                                                       DECEMBER 31, 1996   ----------------
                                                      -------------------  SALE OF MAXIMUM
                                                          OUTSTANDING           UNITS
                                                      -------------------  ----------------
<S>                                                   <C>                  <C>
Limited Partnership Interest(1).....................    $    85,273,194    $    191,912,694
General Partnership Interest(2).....................          2,038,949           2,038,949
                                                      -------------------  ----------------
        Total.......................................    $    87,312,143    $    193,951,643
                                                      -------------------  ----------------
                                                      -------------------  ----------------
</TABLE>
 
- ------------------------
(1) Units are offered pursuant to this Prospectus at a price per Unit equal to
    100% of the Net Asset Value per Unit as of the close of business on the last
    day of the month immediately preceding the date of the Closing at which
    Units are issued.
 
(2) The General Partner will contribute an additional amount in cash as is
    necessary to make the General Partner's capital contribution at least equal
    to the greater of (a) 1% of the aggregate capital contributions to the
    Partnership by all Partners (including the General Partner's contribution)
    and (ii) $25,000. Such additional contributions by the General Partner will
    be evidenced by Units of General Partnership Interest.
 
                              THE GENERAL PARTNER
 
    The general partner and commodity pool operator of the Partnership is
Demeter Management Corporation, a Delaware corporation formed on August 18,
1977, to act as a commodity pool operator ("Demeter" or the "General Partner").
Effective in 1977, the General Partner became registered with the CFTC as a
commodity pool operator and is currently a member of the NFA in such capacity.
The General Partner's main business office is located at Two World Trade Center,
62nd floor, New York, New York 10048, telephone (212) 392-8899. The General
Partner and DWR are affiliates in that each company is a wholly-owned subsidiary
of Dean Witter, Discover & Co. ("DWD"), which is a publicly-owned company. DWD,
DWR, and the General Partner, each may be deemed to be a "parent" of the
Partnership within the meaning of the federal securities laws.
 
    The General Partner is or has been the general partner and commodity pool
operator for 23 other publicly offered commodity pools--Dean Witter Reynolds
Commodity Partners ("Commodity Partners"), Columbia Futures Fund ("Columbia"),
Dean Witter Cornerstone Funds I, II, III, and IV (individually, "Cornerstone I,"
"Cornerstone II," "Cornerstone III," and "Cornerstone IV," and collectively, the
"Cornerstone Funds"), Dean Witter Diversified Futures Fund Limited Partnership
("Diversified"), Dean Witter Multi-Market Portfolio, L.P. (formerly Dean Witter
Principal Guaranteed Fund L.P.) ("Multi-Market"), Dean Witter Diversified
Futures Fund II L.P. ("Diversified II"), Dean Witter Principal Guaranteed Fund
II L.P. ("Principal Guaranteed Fund II"), Dean Witter Principal Guaranteed Fund
III L.P. ("Principal Guaranteed Fund III"), Dean Witter Principal Plus Fund L.P.
(including Dean Witter Principal Plus Fund Management L.P., an affiliated pool,
"Principal Plus"), Dean Witter Diversified Futures Fund III L.P. ("Diversified
III"), Dean Witter Select Futures Fund L.P. ("Select"), Dean Witter Global
Perspective Portfolio L.P. ("Global"), Dean Witter World Currency Fund L.P.
("World Currency"), DWFCM International Access Fund L.P. ("DWIAF"), Dean Witter
Spectrum Strategic L.P. ("Spectrum Strategic"), Dean Witter Spectrum Technical
L.P. ("Spectrum Technical"), Dean Witter Spectrum Balanced L.P. ("Spectrum
Balanced"), DWR Chesapeake L.P. ("Chesapeake"), and DWR/JWH Futures Fund
 
                                       44
<PAGE>
L.P. ("DWR/JWH"), plus four other commodity pools which are exempt from certain
disclosure requirements pursuant to CFTC Rule 4.7. The General Partner has
served in such capacities since the inception of Commodity Partners in February
1981 (until its termination in December 1988), the inception of Cornerstone I
(until its termination in December 1991), Cornerstone II, and Cornerstone III in
December 1983, the inception of Cornerstone IV in December 1986, February 1985
for Columbia, the inception of Diversified in November 1987, the inception of
Multi-Market in April 1988, the inception of Diversified II in September 1988,
the inception of Principal Guaranteed Fund II in October 1988, the inception of
Principal Guaranteed Fund III in October 1988, the inception of Principal Plus
in August 1989, the inception of Diversified III in May 1990, the inception of
Select in March 1991, the inception of Global in November 1991, the inception of
World Currency in December 1992, the inception of DWIAF in March 1994, the
inception of each of Spectrum Strategic, Spectrum Technical and Spectrum
Balanced in April 1994, the inception of Chesapeake in November 1994 and the
inception of DWR/JWH in December 1995. As of December 31, 1996, the General
Partner had in excess of $1 billion in aggregate net assets under management,
making it one of the largest operators of managed futures funds in the United
States. As of December 31, 1996, there were approximately 84,000 investors in
the commodity pools managed by Demeter.
 
    The responsibilities of the General Partner are described under "Fiduciary
Responsibility" and "The Limited Partnership Agreement--Management of
Partnership Affairs." The General Partner will receive no compensation for its
services to the Partnership (however, the General Partner shares office space,
equipment and staff with DWR, which will receive commodity brokerage commissions
from the Partnership, as described under "Description of Charges to the
Partnership--2. Dean Witter Reynolds Inc."). Under the Limited Partnership
Agreement, the General Partner is required generally to maintain its net worth
at an amount not less than 10% of the total contributions to the Partnership by
all the Partners thereof (including the General Partner's contribution) and to
any other limited partnership for which it acts as a general partner by all
partners. In addition to its current capitalization and exclusive of its
anticipated additional investment in the Partnership, the General Partner will
increase its net worth from time to time as may be required. DWD intends to
contribute to the General Partner any additional capital which may be necessary
to permit the General Partner to meet such net worth requirements. See
"Capitalization."
 
    In this connection, as reflected in DWD's 1996 and 1995 Annual Reports, DWD
had total shareholders' equity of $5,164.4 million and total assets of $42,413.6
million as of December 31, 1996 (audited), and total shareholders' equity of
$4,833.7 million and total assets of $38,208.2 million as of December 31, 1995
(audited). Additional financial information regarding DWD is included in the
financial statements filed as part of such Annual Reports. DWD will provide to
investors, upon request, copies of its most recent Forms 10-K, 10-Q and 8-K, as
filed from time to time with the SEC. Such reports will be available for review
or copying at the offices of the SEC, 450 Fifth Street, N.W., Room 1024,
Judiciary Plaza, Washington, D.C. 20549 or will be available at no charge by
writing to DWD at Two World Trade Center, New York, New York 10048 (Attn:
Investor Relations).
 
    On February 5, 1997, DWD and Morgan Stanley Group Inc. ("Morgan Stanley")
announced a definitive agreement to merge. Under the terms of the merger
agreement unanimously approved by the Boards of Directors of both companies,
each Morgan Stanley common share will be exchanged for 1.65 common shares of
DWD. Morgan Stanley preferred shares outstanding at the date of the merger will
be exchanged for preferred shares of DWD having substantially identical terms.
The transaction, which is expected to be completed in mid-1997, is subject to
customary closing conditions, including certain regulatory approvals and the
approval of shareholders of both companies. It is anticipated that such merger
will have no material effect on the ability of DWR and Demeter to meet their
respective obligations as commodity broker for, and General Partner of, the
Partnership.
 
DIRECTORS AND OFFICERS OF THE GENERAL PARTNER
    RICHARD M. DeMARTINI, age 44, is the Chairman of the Board and a Director of
the General Partner. Mr. DeMartini is also the Chairman of the Board and a
Director of Dean Witter Futures & Currency Management, Inc. ("DWFCM"), a
registered commodity trading advisor. Mr. DeMartini has
 
                                       45
<PAGE>
served as President and Chief Operating Officer of Dean Witter Capital, a
division of DWR since January 1989. From January 1988 until January 1989, Mr.
DeMartini served as President and Chief Operating Officer of the Consumer
Banking Division of DWD, and from May 1985 until January 1988 was President and
Chief Executive Officer of the Consumer Markets Division of DWD. Mr. DeMartini
currently serves as a Director of DWD and of DWR, and has served as an officer
of DWR for the past five years. Mr. DeMartini has been with DWD and its
affiliates for 22 years.
 
    MARK J. HAWLEY, age 53, is President and a Director of the General Partner.
Mr. Hawley joined DWR in February 1989 as Senior Vice President and Director of
DWR's Managed Futures and Precious Metals Department and currently serves as
Executive Vice President of that department. Mr. Hawley also serves as President
of DWFCM. From 1978 to 1989, Mr. Hawley was a member of the senior management
team at Heinold Asset Management, Inc., a commodity pool operator, and was
responsible for a variety of projects in public futures funds. From 1972 to
1978, Mr. Hawley was a Vice President in charge of institutional block trading
for the Mid-West at Kuhn Loeb & Co.
 
    LAWRENCE VOLPE, age 49, is a Director of the General Partner and DWFCM. Mr.
Volpe joined DWR as a Senior Vice President and Controller in September 1983,
and currently holds those positions. From July 1979 to September 1983, he was
associated with E.F. Hutton & Company Inc. and prior to his departure, held the
positions of First Vice President and Assistant Controller. From 1970 to July
1979, he served as audit manager in the financial services division of Arthur
Andersen & Co.
 
    JOSEPH G. SINISCALCHI, age 51, is a Director of the General Partner. Mr.
Siniscalchi joined DWR in July 1984 as a First Vice President, Director of
General Accounting. He is currently Senior Vice President and Controller of the
Financial Markets Division of DWR. From February 1980 to July 1984, Mr.
Siniscalchi was Director of Internal Audit at Lehman Brothers Kuhn Loeb, Inc.
 
    LAURENCE E. MOLLNER, age 55, is a Director of the General Partner. Mr.
Mollner joined DWR in May 1979 as Vice President and Director of Commercial
Sales. He is currently Executive Vice President and Deputy Director of the
Futures Markets Division of DWR.
 
    EDWARD C. OELSNER III, age 54, is a Director of the General Partner. Mr.
Oelsner joined DWR in March 1981 as a Managing Director in the Corporate Finance
Department. He currently manages DWR's Retail Products Group within the
Corporate Finance Department. While Mr. Oelsner has extensive experience in the
securities industry, he has no experience in futures interests trading.
 
    ROBERT E. MURRAY, age 36, is a Director of the General Partner. Mr. Murray
is currently a Senior Vice President of the DWR Managed Futures Division and is
a Director and the Senior Administrative Officer of DWFCM. Mr. Murray graduated
from Geneseo State University in May 1983 with a B.A. degree in Finance. Mr.
Murray began at DWR in 1984 and is currently the Director of Product Development
for the Managed Futures Division and is responsible for the development and
maintenance of the proprietary Fund Management System utilized by the General
Partner and DWFCM for organizing information and producing reports for
monitoring investors' accounts.
 
    PATTI L. BEHNKE, age 36, is Vice President and Chief Financial Officer of
the General Partner. Ms. Behnke joined DWR in 1991 as Assistant Vice President
of Financial Reporting and is currently a First Vice President and Director of
Financial Reporting and Managed Futures Accounting in the Capital Markets
division of DWR. From August 1988 to September 1990, Ms. Behnke was Assistant
Controller of L.F. Rothschild & Co. and from September 1986 to August 1988, she
was associated with Carteret Savings Bank as Assistant Vice President--Financial
Analysis. From April 1982 to September 1986, Ms. Behnke was an auditor at Arthur
Andersen & Co.
 
    The General Partner and its officers and directors may, from time to time,
trade futures interests contracts for their own proprietary accounts. The
records of trading in such accounts will not be made available to Limited
Partners for inspection.
    No principals of the General Partner own Units as of the date of this
Prospectus.
 
                                       46
<PAGE>
    The General Partner has agreed to make capital contributions to the
Partnership as needed to make the General Partner's capital contribution at
least equal to the greater of (a) 1% of aggregate capital contributions to the
Partnership by all Partners (including the General Partner's contribution) and
(b) $25,000. The General Partner and its principals are not obligated to
purchase Units but may do so.
 
                                       47
<PAGE>
                   THE FUTURES, OPTIONS AND FORWARDS MARKETS
 
FUTURES CONTRACTS
 
    Futures  contracts are  standardized contracts  made on  domestic or foreign
exchanges which call for the future delivery of specified quantities of  various
agricultural  and  tropical  commodities,  industrial  commodities,  currencies,
financial instruments or metals at a  specified time and place. The  contractual
obligations, depending upon whether one is a buyer or a seller, may be satisfied
either by taking or making, as the case may be, physical delivery of an approved
grade  of commodity or by making an offsetting sale or purchase of an equivalent
but opposite futures contract on the same exchange prior to the designated  date
of  delivery.  As an  example of  an offsetting  transaction where  the physical
commodity is not delivered, the contractual obligation arising from the sale  of
one  contract of December 1997 wheat on a commodity exchange may be fulfilled at
any time before delivery  of the commodity  is required by  the purchase of  one
contract of December 1997 wheat on the same exchange. The difference between the
price  at which the futures contract is sold or purchased and the price paid for
the offsetting  purchase or  sale, after  allowance for  brokerage  commissions,
constitutes the profit or loss to the trader. Certain futures contracts, such as
those  for stock or other financial or  economic indices approved by the CFTC or
Eurodollar contracts, settle  in cash  (irrespective of whether  any attempt  is
made to offset such contracts), rather than delivery of any physical commodity.
 
FORWARD CONTRACTS
 
    Contracts  for  future  delivery of  certain  commodities may  also  be made
through banks or dealers pursuant to  what are commonly referred to as  "forward
contracts."  A forward  contract is  a contractual right  to purchase  or sell a
specified quantity of a commodity at or before a specified date in the future at
a specified price and, therefore, is  similar to a futures contract. In  forward
contract  trading,  a  bank  or  dealer  generally  acts  as  principal  in  the
transaction and includes its anticipated profit (the "spread" between the  "bid"
and  the "asked"  prices), and  in some  instances a  mark-up, in  the prices it
quotes for forward  contracts. Unlike futures  contracts, forward contracts  are
not  standardized contracts; rather, they are subjects of individual negotiation
between the  parties  involved.  Moreover,  there  is  no  clearinghouse  system
applicable  to forward contracts, forward contracts  are not fungible, and there
is no direct means of "offsetting" by purchase of an offsetting position on  the
same  exchange as  one can  a futures  contract. In  recent years,  the terms of
forward contracts  have become  more  standardized and  in some  instances  such
contracts  now provide a right of offset or cash settlement as an alternative to
making or taking delivery of the contract.
 
OPTIONS ON FUTURES
 
    An option on a futures contract or  on a physical commodity gives the  buyer
of the option the right to take a position at a specified price (the "striking,"
"strike,"  or "exercise" price) in the underlying futures contract or commodity.
The buyer of a "call" option acquires the  right to take a long position in  the
underlying  futures  contract or  commodity,  and the  buyer  of a  "put" option
acquires the right to take a  short position in the underlying futures  contract
or commodity.
 
    The  purchase price of an option is referred to as its "premium." The seller
(or "writer")  of  an option  is  obligated to  take  a futures  position  at  a
specified  price opposite to the option buyer  if the option is exercised. Thus,
the seller of a  call option must stand  ready to take a  short position in  the
underlying  futures contract at the striking  price if the buyer should exercise
the option. The seller of a put option,  on the other hand, must stand ready  to
take a long position in the underlying futures contract at the striking price.
 
    A  call option  on a futures  contract is  said to be  "in-the-money" if the
striking price is  below current  market levels, and  "out-of-the-money" if  the
striking  price is  above current  market levels. Similarly,  a put  option on a
futures contract is  said to be  "in-the-money" if the  striking price is  above
current  market levels,  and "out-of-the-money" if  the striking  price is below
current market levels.
 
    Options have limited life spans, usually tied to the delivery or  settlement
date  of the underlying futures contract. An option that is out-of-the-money and
not offset by the time it expires becomes
 
                                       47
<PAGE>
worthless.  On  certain  exchanges,   in-the-money  options  are   automatically
exercised  on their  expiration date, but  on others  unexercised options simply
become worthless after their expiration date. Options usually trade at a premium
above their intrinsic value (I.E., the  difference between the market price  for
the  underlying futures  contract and  the striking  price), because  the option
trader is speculating on (or hedging  against) future movements in the price  of
the  underlying contract. As an option nears its expiration date, the market and
intrinsic value typically move into  parity. The difference between an  option's
intrinsic and market values is referred to as the "time value" of the option.
 
    The  use  of  interrelated  options and  futures  positions  can  provide an
additional means of  risk management  and permit a  trader to  retain a  futures
position  in the hope of additional appreciation  in that position, while at the
same time allowing the trader to limit the possible adverse effects of a decline
in the position's value.
 
    Successful futures options trading requires many of the same skills as  does
successful  futures  trading. However,  since specific  market movements  of the
underlying futures contract or commodity must be predicted accurately, the risks
involved are somewhat different. For example, if the Partnership buys an  option
(either to sell or buy a futures contract or commodity), it will pay a "premium"
representing  the market value and time value of the option. Unless the price of
the futures contract or commodity underlying  the option changes and it  becomes
profitable  to exercise or offset the  option before it expires, the Partnership
may lose the entire amount of such premium. Conversely, if the Partnership sells
an option (either to sell  or buy a futures contract  or commodity), it will  be
credited  with the premium but will have to deposit margin due to its contingent
liability to take or  deliver the futures contract  or commodity underlying  the
option  in  the event  the option  is  exercised. Traders  who sell  options are
subject to the entire  loss which occurs in  the underlying futures position  or
commodity  (less  any premium  received). The  ability to  trade in  or exercise
options may be restricted  in the event that  trading in the underlying  futures
contract or commodity becomes restricted.
 
HEDGERS AND SPECULATORS
 
    The  two broad classes of persons  who trade futures interests contracts are
"hedgers" and  "speculators."  Commercial  interests,  including  farmers,  that
market  or process commodities and financial institutions that market or deal in
commodities  (including,  for  example,  interest  rate  sensitive  instruments,
foreign  currencies and  stock portfolios)  and which  are exposed  to exchange,
interest rate and stock market risks, may use the commodities markets  primarily
for  hedging. Hedging is a protective procedure designed to minimize losses that
may occur because of price fluctuations occurring, for example, between the time
a merchandiser or processor makes a contract  to buy or sell a raw or  processed
commodity  at a  certain price and  the time  he must perform  the contract. The
commodity markets enable the hedger to  shift the risk of price fluctuations  to
the speculator. The speculator risks his capital with the hope of making profits
from  price fluctuations in futures interests contracts. Speculators rarely take
delivery of commodities,  but generally  close out their  positions by  entering
into  offsetting purchases or sales of  contracts. Since the speculator may take
either a long or short position in  the commodities markets, it is possible  for
him  to make profits or incur losses regardless of whether prices go up or down.
Trading by the Partnership will be for speculative rather than hedging purposes.
 
COMMODITY EXCHANGES
 
    Commodity  exchanges  provide  centralized  market  facilities  for  trading
futures  contracts and options (but not forward contracts) relating to specified
commodities, indices and other intangibles. Members of, and trades executed  on,
a  particular exchange  are subject  to the  rules of  that exchange.  Among the
principal exchanges in  the United States  are the Chicago  Board of Trade,  the
Chicago  Mercantile Exchange (including the  International Monetary Market), the
New York Mercantile Exchange, the Commodity Exchange, Inc. and the Coffee, Sugar
and Cocoa Exchange.
 
    Each of  the commodity  exchanges in  the United  States has  an  associated
"clearinghouse." Once trades between members of an exchange have been confirmed,
the  clearinghouse  becomes  substituted  for  each  buyer  and  each  seller of
contracts traded on the exchange and, in effect, becomes the other party to each
trader's open position in  the market. Thereafter, each  party to a trade  looks
only to the
 
                                       48
<PAGE>
clearinghouse for performance. The clearinghouse generally establishes some sort
of security or guarantee fund to which all clearing members of the exchange must
contribute;   this  fund  acts   as  an  emergency   buffer  which  enables  the
clearinghouse, at least to a large  degree, to meet its obligations with  regard
to  the "other side"  of an insolvent  clearing member's contracts. Furthermore,
clearinghouses require margin deposits and continuously mark positions to market
to provide  some assurance  that their  members will  be able  to fulfill  their
contractual  obligations. Thus, a  central function of  the clearinghouses is to
ensure the integrity of trades, and members effecting futures transactions on an
organized exchange  need  not worry  about  the solvency  of  the party  on  the
opposite  side of  the trade; their  only remaining concerns  are the respective
solvencies of their commodity broker  and the clearinghouse. The exchanges  also
impose  speculative position limits and other restrictions on customer positions
to help ensure  that no single  trader can amass  a position that  would have  a
major impact on market prices.
 
    Commodity  exchanges in the United States and their clearinghouses are given
reasonable latitude  in  promulgating  rules  and  regulations  to  control  and
regulate  their members. Examples of regulations by exchanges and clearinghouses
include the  establishment of  initial  margin levels,  size of  trading  units,
contract specifications, speculative position limits and daily price fluctuation
limits.  The CFTC reviews all such rules  (other than those relating to specific
margin levels for futures,  as opposed to options)  and can disapprove or,  with
respect to certain of such rules, require the amendment or modification thereof.
 
    Foreign  commodity exchanges  differ in  certain respects  from their United
States counterparts. In  contrast to  United States  exchanges, certain  foreign
exchanges  are "principals' markets,"  where trades remain  the liability of the
traders involved, and the  exchange does not become  substituted for any  party.
See   "The  Futures,   Options  and  Forward   Markets--Regulations"  and  "Risk
Factors--Risks Relating to Futures Interests  Trading and the Futures  Interests
Markets--Special Risks Associated with Trading on Foreign Exchanges."
 
SPECULATIVE POSITION LIMITS
 
    The  CFTC and the United States commodity exchanges have established limits,
referred to  as  "speculative position  limits"  or "position  limits,"  on  the
maximum  net long or net short speculative position which any person or group of
persons (other than a  hedger, which the  Partnership is not)  may hold, own  or
control  in  futures  interests  contracts. Among  the  purposes  of speculative
position limits is  to prevent  a "corner"  on a  market or  undue influence  on
prices  by any single trader  or group of traders.  The CFTC has jurisdiction to
establish position limits with  respect to all  commodities and has  established
position limits for all agricultural commodities. In addition, the CFTC requires
each United States exchange to submit position limits for all commodities traded
on  such  exchange  for  approval  by  the  CFTC.  Certain  exchanges  or  their
clearinghouses also set limits on the total net positions that may be held by  a
commodity  broker, such as  DWR. However, position  limits do not  apply to many
currency futures contracts, and, in general, no position limits are in effect in
bank or  dealer forward  contract trading  or in  trading on  foreign  commodity
exchanges,  although the principals with which the Partnership may trade in such
markets may  impose  such limits  as  a matter  of  credit policy.  The  futures
interests positions of the Partnership are not, and will not be, attributable to
Limited  Partners with respect  to their own futures  interests trading, if any,
for purposes of position limits.
 
DAILY LIMITS
 
    Most United States commodity exchanges (but generally not foreign  exchanges
or  banks or dealers in the case of forward contracts) normally limit the amount
of fluctuation in futures interests contract prices during a single trading  day
by  regulation. These regulations  specify what are referred  to as "daily price
fluctuation limits" or more commonly "daily limits." The daily limits  establish
the  maximum amount that the price of a commodity contract may vary either up or
down from the  previous day's settlement  price. Once the  daily limit has  been
reached  in a  particular futures  interest, no  trades may  be made  at a price
beyond the limit. This can create liquidity problems.
 
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<PAGE>
REGULATIONS
 
    Commodity exchanges in the United States are subject to regulation under the
CEAct by the CFTC, the governmental agency having responsibility for  regulation
of commodity exchanges and futures interests contract trading conducted thereon.
The  function  of  the CFTC  is  to implement  the  objectives of  the  CEAct of
preventing price manipulation  and excessive speculation  and promoting  orderly
and  efficient  markets.  Such  regulation, among  other  things,  provides that
trading in  futures  interests contracts  must  be on  exchanges  designated  as
"contract  markets," and that all  trading on such exchanges  must be done by or
through exchange members.
 
    The CFTC  possesses exclusive  jurisdiction to  regulate the  activities  of
"commodity  trading  advisors" and  "commodity pool  operators" and  has adopted
regulations with respect to certain of such persons' activities. Pursuant to its
authority, the CFTC  requires a  commodity pool  operator (such  as the  General
Partner) to keep accurate, current and orderly records with respect to each pool
it  operates. The CFTC may suspend the registration of a commodity pool operator
if the  CFTC finds  that the  operator  has violated  the CEAct  or  regulations
thereunder  and  in  certain  other  circumstances.  Suspension,  restriction or
termination of the General Partner's  registration as a commodity pool  operator
would prevent the General Partner, until such time (if any) as such registration
were  to be reinstated, from managing, and might result in a termination of, the
Partnership. The CEAct  gives the  CFTC similar  authority with  respect to  the
activities  of commodity trading  advisors, such as the  Trading Advisor. If the
registration of the Trading  Advisor as a commodity  trading advisor were to  be
terminated,  restricted or suspended, the Trading Advisor would be unable, until
such time (if any) as such registration were to be reinstated, to render trading
advice to the  Partnership. The Partnership  itself is not  registered with  the
CFTC in any capacity.
 
    The  CEAct requires all "futures commission merchants," such as DWR, to meet
and maintain specified  fitness and financial  requirements, segregate  customer
funds from proprietary funds and account separately for all customers' funds and
positions, and to maintain specified books and records open to inspection by the
staff  of the CFTC.  The CFTC has similar  authority over "introducing brokers,"
I.E., persons who  solicit or accept  orders for  trades but who  do not  accept
margin  deposits for  the execution  of trades.  The Partnership  has no present
intention of using any introducing brokers in its trading. The CEAct also  gives
the  states certain powers to enforce its  provisions and the regulations of the
CFTC.
 
    The fact of CFTC  registration of the General  Partner, DWR and the  Trading
Advisor  does not imply that the CFTC has passed on or approved this offering or
their qualifications to act as described in the Prospectus.
 
    Limited Partners  are  afforded certain  rights  for reparations  under  the
CEAct.  Limited Partners may also be able  to maintain a private right of action
for certain violations of the CEAct. The CFTC has adopted rules implementing the
reparation provisions of  the CEAct  which provide that  any person  may file  a
complaint  for a  reparations award  with the  CFTC for  violation of  the CEAct
against  a  floor  broker,  futures  commission  merchant,  introducing  broker,
commodity  trading  advisor,  commodity  pool  operator,  and  their  respective
associated persons.
 
    Pursuant to authority in the CEAct,  the NFA has been formed and  registered
with  the CFTC as a  "registered futures association." At  the present time, the
NFA is  the  only  non-exchange  self-regulatory  organization  for  commodities
professionals.  NFA members are subject to  NFA standards relating to fair trade
practices, financial condition, and consumer protection. As the  self-regulatory
body  of  the  commodities industry,  the  NFA promulgates  rules  governing the
conduct of commodity  professionals and disciplines  those professionals who  do
not comply with such standards. The CFTC has delegated to the NFA responsibility
for  the registration of  commodity trading advisors,  commodity pool operators,
futures  commission  merchants,   introducing  brokers   and  their   respective
associated  persons and floor brokers. DWR,  the General Partner and the Trading
Advisor are members of the NFA (the Partnership itself is not required to become
a member of the NFA).
 
                                       50
<PAGE>
    The above-described regulatory  structure may be  modified (or repealed)  by
rules  and regulations promulgated by the CFTC or by legislative changes enacted
by Congress.
 
    The CFTC has no authority to regulate trading on foreign commodity exchanges
and markets. The CFTC has, however,  adopted rules relating to the marketing  of
foreign  futures contracts and options in  the United States. These rules permit
commodity options traded  only on certain  foreign exchanges to  be offered  and
sold  in the  United States.  See "Risk  Factors--Risks Relating  to the Futures
Interests Trading and the Futures Interests Markets."
 
MARGINS
 
    "Initial" or "original" margin is the  minimum amount of funds that must  be
deposited  by a trader  with his commodity  broker in order  to initiate futures
trading or  to maintain  an open  position in  futures contracts.  "Maintenance"
margin  is the amount (generally  less than initial margin)  to which a trader's
account may decline before he must  deliver additional margin. A margin  deposit
is  like  a  cash  performance  bond. It  helps  assure  the  commodity trader's
performance of the commodity  futures contracts he  purchases or sells.  Futures
contracts are customarily bought and sold on margins that represent a very small
percentage  (ranging upward  from less  than 2%)  of the  purchase price  of the
underlying  commodity  being  traded.  Because   of  such  low  margins,   price
fluctuations occurring in the futures markets may create profits and losses that
are  greater, in relation  to the amount  invested, than are  customary in other
forms of investment  or speculation. The  minimum amount of  margin required  in
connection  with a particular futures  contract is set from  time to time by the
exchange on which such contract is traded, and may be modified from time to time
by the  exchange during  the  term of  the  contract. See  "Risk  Factors--Risks
Relating to Futures Interests Trading and the Futures Interests Markets."
 
    Brokerage  firms carrying accounts for traders  in futures contracts may not
accept lower, and  generally require higher,  amounts of margin  as a matter  of
policy  in order to  afford further protection for  themselves. DWR will require
the Partnership to make margin deposits equal to the exchange minimum levels for
all futures contracts. This requirement may be altered from time to time at  the
discretion of DWR.
 
    Trading in the currency forward contract market does not require margin, but
generally  does require the extension of credit by a bank or dealer with which a
person trades. Since the Partnership's trading  will be conducted with DWR,  the
Partnership  will be able to  take advantage of DWR's  credit lines with several
participants in the interbank  market. The General  Partner does not  anticipate
that banks and dealers with which DWR and the Partnership may trade will require
margin with respect to their trading of currencies.
 
    When  a trader purchases an  option, there is no  margin requirement. When a
trader sells an option, on the other  hand, he is required to deposit margin  in
an  amount determined  by the  margin requirements  established for  the futures
contract underlying the option, and, in addition, an amount substantially  equal
to  the current premium for  the option. The margin  requirements imposed on the
writing  of  options,  although  adjusted   to  reflect  the  probability   that
out-of-the-money options will not be exercised, can in fact be higher than those
imposed   in  dealing  in  the  futures  markets  directly.  Complicated  margin
requirements apply to  "spreads" and  "conversions," which  are complex  trading
strategies  in which a trader acquires a  mixture of related futures and options
positions.
 
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<PAGE>
    Margin  requirements are  computed each day  by a trader's  broker. When the
market value of a particular open  futures contract position changes to a  point
where  the margin on deposit does not satisfy maintenance margin requirements, a
margin call is  made by  the broker.  If the  margin call  is not  met within  a
reasonable time, the broker may close out the trader's position. With respect to
the  Partnership's  trading,  the  Partnership,  and  not  its  Limited Partners
personally, is subject to margin calls.
 
                   GENERAL DESCRIPTION OF TRADING APPROACHES
 
INTRODUCTION
 
    The investment objective of the  Partnership is capital appreciation of  its
assets  through  speculative  trading in  futures  interests.  The Partnership's
ability to  succeed in  this endeavor  depends  largely on  the success  of  the
trading  approaches  utilized  on  behalf of  such  Partnership  by  the Trading
Advisor. The following  is a  brief description  of general  approaches used  in
trading  futures  interests;  see  "The  Trading  Advisor--Description  of JWH's
Trading Programs" for specific information relating to the Trading Advisor.
 
SYSTEMATIC AND DISCRETIONARY
 
    Trading advisors may be classified as either systematic or discretionary.
 
    A systematic  trader  will  generally  rely to  some  degree  on  judgmental
decisions  concerning, for example, what markets to follow and futures interests
to trade, when to liquidate  a position in a contract  which is about to  expire
and  how large  a position  to take in  a particular  futures interest. However,
although  these  judgmental  decisions  may  have  a  substantial  effect  on  a
systematic  trading advisor's  performance, his  primary reliance  is on trading
programs or  models which  generate  trading signals.  The systems  utilized  to
generate  trading  signals are  changed from  time  to time  (although generally
infrequently), but the trading instructions generated by the systems being  used
are   followed  without  significant   additional  analysis  or  interpretation.
Discretionary traders, on the other hand, while they may utilize market  charts,
computer  programs and  compilations of quantifiable  fundamental information to
assist them in making trading decisions, make trading decisions on the basis  of
their  own judgment and trading experience, not  on the basis of trading signals
generated by any program or model.
 
    Each approach involves certain inherent  risks. Systematic traders may  fail
to  capitalize  on  market  trends  which  their  systems  would  otherwise have
exploited due to judgmental  decisions made by them  in the context of  applying
their  generally mechanical trading systems. Discretionary traders, on the other
hand, may decide to make trades which would not have been signaled by a  trading
system  and which result in substantial  losses. Furthermore, any trading system
or trader may  suffer substantial  losses by misjudging  the market.  Systematic
traders  tend  to  rely  more on  computerized  programs  than  do discretionary
traders, and some consider  the prospect of  disciplined trading, which  largely
removes  the  emotion  of  the  individual  trader  from  the  trading  process,
advantageous. In addition, due to their use of computers, systematic traders are
generally able to incorporate more data into a particular trading decision  than
can  discretionary  traders.  However,  when  fundamental  factors  dominate the
market, trading  systems  may  suffer  rapid and  severe  losses  due  to  their
inability  to respond to such factors until  the reversal of trading signals, by
which time a  precipitous price change  may already be  in progress,  preventing
liquidation  at anything but substantial  losses. The trading approaches applied
by the Trading Advisor are systematic,  although subjective judgment is used  in
the application of its systematic programs.
 
TECHNICAL AND FUNDAMENTAL ANALYSIS
 
    In  addition to  being distinguished  from one  another by  the criterion of
whether they  trade  systematically  or  on the  basis  of  their  discretionary
evaluations  of the markets, trading advisors  are also distinguished as relying
on either "technical" or "fundamental" analysis, or on a combination of the two.
Systematic traders tend to rely on technical analysis, because the data relevant
to such analysis  is more susceptible  to being isolated  and quantified to  the
extent  necessary to be successfully incorporated into a program or mathematical
model   than   is   most   "fundamental"   information,   but   there   is    no
 
                                       52
<PAGE>
inconsistency  in attempting to trade systematically on the basis of fundamental
analysis. The fundamental  information which  can be evaluated  by a  formalized
trading  system is, however, limited to some extent in that it generally must be
quantifiable in order to be processed by such a system.
 
    Technical analysis is not  based on anticipated  supply and demand  factors;
instead,  it is  based on  the theory  that the  study of  the futures interests
markets themselves will provide  a means of anticipating  prices in the  future.
Technical  analysis operates on the theory that market prices at any given point
in time  reflect  all  known factors  affecting  the  supply and  demand  for  a
particular  futures interest.  Consequently, technical  analysis focuses  not on
evaluating  those  factors  directly  but  on  an  analysis  of  market   prices
themselves,  theorizing that a detailed analysis  of, among other things, actual
daily, weekly and monthly price  fluctuations, volume variations and changes  in
open  interest is the most  effective means of attempting  to predict the future
course of price movements.
 
    Fundamental analysis, in contrast, is based on the study of factors external
to the trading markets that affect the supply and demand of a particular futures
interest in  an attempt  to  predict future  price  levels. Such  factors  might
include  weather,  the economy  of  a particular  country,  government policies,
domestic  and  foreign  political  and  economic  events,  and  changing   trade
prospects. Fundamental analysis theorizes that by monitoring relevant supply and
demand  factors  for a  particular commodity,  a state  of current  or potential
disequilibrium of  market  conditions may  be  identified  that has  yet  to  be
reflected  in the  price level  of that  futures interest.  Fundamental analysis
assumes that  markets are  imperfect, that  information is  not  instantaneously
assimilated or disseminated, and that econometric models can be constructed that
generate   equilibrium  prices  that  may   indicate  that  current  prices  are
inconsistent with underlying economic  conditions and will, accordingly,  change
in the future.
 
    The Trading Advisor's trading programs are purely technical programs.
 
TREND-FOLLOWING
 
    "Trend-following"  trading  advisors gear  their trading  approaches towards
positioning themselves to take advantage of major price movements, as opposed to
traders who  seek to  achieve  overall profitability  by making  numerous  small
profits on short-term trades, or through arbitrage techniques. "Trend-following"
trading  advisors assume that  most of their trades  will be unprofitable. Their
objective is  to make  a few  large  profits, more  than offsetting  their  more
numerous  but smaller losses,  from capitalizing on  major trends. Consequently,
during  periods  when   no  major   price  trends   develop  in   a  market,   a
"trend-following" trading advisor is unlikely to develop any meaningful profits.
Trend-following is a major element of the Trading Advisor's technical analysis.
 
RISK CONTROL TECHNIQUES
 
    As will be apparent from the following descriptions of the Trading Advisor's
trading  programs,  an important  aspect  of any  speculative  futures interests
strategy relates to  the control  of losses, not  only the  ability to  identify
profitable  trades. Unless it is  possible to avoid major  drawdowns, it is very
difficult to achieve long-term profitability.
 
    Trading advisors  often  adopt  fairly rigid  "risk  management"  or  "money
management" principles. Such principles typically restrict the size of positions
which  will be taken, as well as establishing "stop-loss" points at which losing
positions must  be liquidated.  It  is important  for prospective  investors  to
recognize  that no risk control  technique is "fail safe"  and can not, in fact,
assure that major  drawdowns will be  avoided. Not only  do estimates of  market
volatility  themselves require judgmental input, but market illiquidity also can
make it impossible  for an  account to liquidate  a position  against which  the
market  is moving  strongly, whatever  risk management  principles are utilized.
Similarly, unless  a "trend-following"  trading advisor  trades profitably,  the
losses  incurred in  the course  of taking an  initial position  in a particular
futures interest  can  quickly  accumulate  into a  major  drawdown.  A  trading
advisor's  risk management  principles should,  accordingly, be  seen more  as a
discipline applied to its trading in  highly speculative markets rather than  as
an effective protection against loss.
 
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<PAGE>
    Not  only are some  methods proprietary and confidential,  but they are also
continually evolving. Prospective investors and Limited Partners will  generally
not  be informed of a  change in the Trading  Advisor's trading approach, unless
the General Partner considers such change to be material.
 
    In addition to the  continually changing character  of trading methods,  the
futures  interests  markets  themselves are  continually  changing.  The Trading
Advisor may, in its sole discretion, elect to trade certain futures interests to
the exclusion of others  in its programs, depending  upon the Trading  Advisor's
view of the markets.
 
                              THE TRADING ADVISOR
 
INTRODUCTION
 
    The  Partnership  has  entered  into  an  Amended  and  Restated  Management
Agreement with John W. Henry &  Company, Inc. (the "Trading Advisor" or  "JWH"),
pursuant  to which  the Trading  Advisor continues  to have,  subject to certain
limitations, authority  and  responsibility  for directing  the  investment  and
reinvestment  in futures  interests of  the Partnership's  Net Assets.  See "The
Management Agreement."  Since  the primary  purpose  of the  Partnership  is  to
achieve  appreciation  of  its  assets through  speculative  trading  in futures
interests, the Partnership's  ability to  succeed in that  endeavor will  depend
upon  the  continued success  of the  relevant trading  programs of  the Trading
Advisor.
 
    The  General  Partner  has  extensive  experience  in  the  organization  of
commodity  pools and  the evaluation and  selection of  trading advisors, having
operated 28  commodity pools  since  1978. The  General Partner's  objective  in
originally  selecting the trading  advisor, and in electing  to have the Trading
Advisor continue as trading advisor for the Partnership, is to obtain access  to
aggressive  trading strategies coupled with  strict risk control measures, which
would be able  to capitalize  on profitable trends  while providing  substantial
protection  against major  losses. The original  decision to  retain the Trading
Advisor, and the  decision to  continue employing  the services  of the  Trading
Advisor,  was influenced  by a  number of factors,  among which  was the General
Partner's evaluation of the Trading  Advisor's historical performance (both  for
the  Partnership and otherwise), the markets  traded by the Trading Advisor, its
ability to  control  risk, and  the  amount of  equity  managed by  the  Trading
Advisor.
 
    The  following  description  of  the  Trading  Advisor's  trading  programs,
methods, and strategies and its principals is general and is not intended to  be
exhaustive.  As of  December 31, 1996,  the Partnership's  assets were allocated
59.8% to  the Financial  and  Metals Portfolio,  19.6%  to The  World  Financial
Perspective,  9.3%  to  the  Global  Diversified  Portfolio,  and  11.3%  to the
International Foreign  Exchange Program.  It  is the  intention of  the  General
Partner  and the Trading Advisor, effective approximately  as of the date of the
Closing, that the  Partnership's assets  will be allocated  20% to  each of  the
Original  Investment  Program, the  Financial  and Metals  Portfolio,  The World
Financial Perspective,  the Global  Financial Portfolio,  and the  International
Currency  and  Bond  Portfolio.  The  percentage  of  the  Partnership's  assets
allocated to the various programs of the Trading Advisor may change at any  time
and  from time to  time as a result  of reallocations upon  the agreement of the
General Partner and  the Trading  Advisor, which  shall be  at their  collective
discretion,  and will  change as  a result  of profits  and losses  in each such
program.
 
JOHN W. HENRY & COMPANY, INC.
 
    John W. Henry & Company, Inc. ("JWH"), a California corporation, is a United
States-based global  investment  management firm  with  offices located  at  301
Yamato  Road,  Boca  Raton,  Florida and  at  One  Glendinning  Place, Westport,
Connecticut 06880. Its telephone  number is (203) 221-0431,  and its website  is
http://www.jwh.com.  JWH  is  recognized  as a  leader  in  managing  capital in
futures, interest rate,  and foreign exchange  markets for international  banks,
brokerage  firms, pension  funds, institutions,  and high-net-worth individuals.
JWH trades numerous contracts on a 24-hours basis in the U.S., Europe and  Asia,
and  has grown to be one of the  largest advisors in the industry, managing over
$1.9 billion in client capital as of December 31, 1996.
 
                                       54
<PAGE>
    John  W.  Henry  &  Company  began  managing  assets  in  1981  as  a   sole
proprietorship, and was later incorporated in the state of California as John W.
Henry  & Co., Inc. to conduct business  as a commodity trading advisor. The sole
shareholder of JWH is the John W.  Henry Trust dated July 27, 1990. The  trustee
and  sole beneficiary of the Trust is John W. Henry. The firm is registered as a
commodity trading  advisor and  a  commodity pool  operator with  the  Commodity
Futures Trading Commission and is a member of the NFA in such capacities. JWH is
not affiliated with the General Partner or DWR.
 
    The individual principals of JWH are as follows:
 
    Mr.  John W. Henry, age  47, is chairman of the  JWH Board of Directors (the
"Chairman") and is trustee and sole beneficiary of the John W. Henry Trust dated
July 27, 1990. Mr. Henry is also a member of the Investment Policy Committee  of
JWH.  He currently concentrates  his activities at  JWH on portfolio management,
business issues and frequent dialogue with trading supervisors. Mr. Henry is the
exclusive owner  of  certain  trading  systems  licensed  to  Elysian  Licensing
Corporation,  a corporation wholly-owned by Mr. Henry and sublicensed by Elysian
Licensing Corporation to JWH  and utilized by JWH  in managing client  accounts.
Over  the  last 15  years, Mr.  Henry has  developed many  innovative investment
programs which  have enabled  JWH to  become one  of the  most successful  money
managers in the foreign exchange, futures and fixed income markets.
 
    Mr.  Henry has served on the Board  of Directors of the National Association
of Futures  Trading  Advisors  ("NAFTA") and  the  Managed  Futures  Association
("MFA"),  and  has served  on the  Nominating  Committee of  the NFA.  Mr. Henry
currently serves on the Board of  Directors of the Futures Industry  Association
("FIA")  and is Chairman of the FIA Task Force on Derivatives for Investment. He
also currently serves on a panel created by the Chicago Mercantile Exchange  and
the  Chicago Board of  Trade to study cooperative  efforts related to electronic
trading, common  clearing and  the issues  regarding a  merger. Mr.  Henry is  a
principal  of JWH Risk Management, Inc.  ("JWH RMI"), JWH Asset Management, Inc.
("JWH  AMI"),  Westport  Capital  Management  Corporation  ("Westport"),  Global
Capital  Management  Limited ("GCM"),  and  JWH Financial  Products,  Inc. ("JWH
FPI"), all of  which are affiliates  of JWH.  Since the beginning  of 1987,  Mr.
Henry  has devoted, and will continue to devote, considerable time to activities
in businesses unrelated to JWH and its affiliates.
 
    Mr. Mark H. Mitchell, age 47,  is a vice chairman, executive vice  president
and  a member  of the JWH  Board of  Directors. He is  also vice  chairman and a
director of JWH RMI, JWH AMI, and JWH FPI. Prior to joining JWH in January 1994,
Mr. Mitchell was a partner of Chapman  and Cutler, a Chicago law firm, where  he
headed  its futures law  practice since August  1983. From August  1980 to March
1991, he served as General Counsel of the NAFTA and, from March 1991 to December
1993, he served  as General  Counsel of  the MFA.  Mr. Mitchell  is currently  a
member  of  the  Commodity  Pool Operator/  Commodity  Trading  Advisor Advisory
Committee and the Special Committee for the Review of a Multi-tiered  Regulatory
Approach  to NFA Rules, both of the NFA.  In addition, he has served as a member
of the Government Relations Committee of the MFA and the Executive Committee  of
the  Law and Compliance Division of the FIA. In 1985, he received the Richard P.
Donchian Award for  Outstanding Contributions  to the Field  of Commodity  Money
Management.  He has been an  editor of FUTURES INTERNATIONAL  LAW LETTER and its
predecessor publication, COMMODITIES LAW LETTER. He received an A.B. with honors
from Dartmouth  College and  a J.D.  from the  University of  California at  Los
Angeles,  where  he was  named  to the  Order of  the  Coif, the  national legal
honorary society.
 
    Mr. David R. Bailin, age 37, is an executive vice president and is a  member
of  the Operating Committee of JWH. He is also president of JWH FPI and JWH RMI,
president and a director of Westport, and president and chairman of the Board of
Directors of GCM. Mr. Bailin is responsible for the development, implementation,
and management of JWH's sales and marketing infrastructure. Prior to joining JWH
in December 1995, Mr. Bailin was managing director-development since April  1994
for  Global Asset Management ("GAM"), a Bermuda-based investment management firm
with  over  $7  billion  in  assets.  He  was  responsible  for  overseeing  the
international  distribution  of  GAM's funds  as  well as  for  establishing new
distribution relationships and channels. Prior  to his employment with GAM,  Mr.
Bailin  headed  the  real estate  asset  management division  of  Geometry Asset
Management
 
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<PAGE>
beginning in July 1992. Prior to that time, beginning in 1988, he was  President
of  Warner Financial, an investment  advisory business in Boston, Massachusetts.
Mr. Bailin  received a  B.A. from  Amherst College  and an  M.B.A. from  Harvard
Business School.
 
    Mr.  James E.  Johnson, Jr.,  age 44,  is a  managing director  of JWH, with
responsibilities in  the institutional  marketing area.  Mr. Johnson  is also  a
principal  of Westport, JWH RMI, JWH AMI, and JWH FPI. Mr. Johnson joined JWH in
May of 1995 from Bankers Trust Company, where he was managing director and chief
financial officer for its Institutional Asset Management Division since  January
1983.  His areas of  responsibility included finance,  operations and technology
for the $160 billion global asset  advisor. Prior to joining Bankers Trust,  Mr.
Johnson  was  a  product manager  at  American Express  Company  responsible for
research and market strategies for the Gold Card. He received a B.A. with honors
from Columbia University and  an M.B.A. in Finance  and Marketing from New  York
University.
 
    Ms.  Elizabeth A.M. Kenton, age 31, is a senior vice president, the director
of compliance, and a member of the Operating Committee of JWH. Since joining JWH
in March of 1989, Ms. Kenton has held positions of increasing responsibility  in
research  and development, administration and  regulatory compliance. Ms. Kenton
is also a  director of  Westport, a vice  president of  JWH AMI and  JWH FPI,  a
senior  vice president of JWH RMI and a director of GCM. Prior to her employment
at JWH, Ms. Kenton was Associate Manager of Financial and Trading Operations  at
Krieger  Investments, a currency  and commodity trading firm.  From July 1987 to
September 1988,  Ms.  Kenton worked  for  Bankers  Trust Company  as  a  product
specialist  for foreign  exchange and treasury  options trading.  She received a
B.S. in Finance from Ithaca  College. Ms. Kenton serves  on the MFA Trading  and
Markets Committee.
 
    Ms.  Mary Beth Hardy,  age 36, is  a senior vice  president, the director of
trading administration  (the "Director  of Trading  Administration"), and  is  a
member  of  the Operating  and Investment  Policy Committees  of JWH.  Ms. Hardy
announced her  resignation on  March 4,  1997 from  the position  listed  above,
effective  April 30, 1997. Thereafter, she may  continue with JWH on a part-time
basis to assist with transition issues. Since joining JWH in September 1990, Ms.
Hardy  has  held  positions  of   increasing  responsibility  in  research   and
development  and trading.  Prior to  her employment at  JWH, Ms.  Hardy held the
position of associate  editor at  Waters Information Services,  where she  wrote
weekly  articles covering technological  advances in the  securities and futures
markets. Prior to joining Waters Information Services in 1989, Ms. Hardy was  at
Shearson Lehman Brothers Inc., where she held the position of assistant director
of  the Managed  Futures Trading  Department. Prior  to that,  Ms. Hardy  was an
institutional salesperson  for Shearson  in a  group specializing  in  financial
futures  and options. Previously, Ms. Hardy was an institutional salesperson for
Donaldson, Lufkin and Jenrette with a group which also specialized in  financial
futures  and options. Ms. Hardy serves on the Executive Committee of the Managed
Futures Association's Board of Directors and has chaired its Trading and Markets
committee. She received a B.B.A. in Finance from Pace University.
 
    Mr. David M.  Kozak, age  49, is  Counsel to  the Firm,  vice president  and
secretary  of JWH. He  is also secretary of  JWH RMI, JWH AMI,  and JWH FPI, and
assistant secretary of  Westport. Prior to  joining JWH in  September 1995,  Mr.
Kozak  was  employed at  Chapman  and Cutler,  where  he was  an  associate from
September 1983 and a partner from 1989. Mr. Kozak has concentrated in  commodity
futures law since 1981, with emphasis in the area of commodity money management.
During  the time  he was employed  at Chapman  and Cutler, he  served as outside
counsel to  the NAFTA  and the  MFA.  Mr. Kozak  is currently  a member  of  the
Government  Relations Committee of the MFA, the NFA Special Committee on CPO/CTA
Disclosure Issues  and  the Visiting  Committee  of The  University  of  Chicago
Library.  He  received  a  B.A.  from Lake  Forest  College,  an  M.A.  from The
University of Chicago, and a J.D. from Loyola University of Chicago.
 
    Mr. Kevin S. Koshi, age  33, is a senior  vice president, chief trader  (the
"Chief  Trader"), and a member of the Operating and Investment Policy Committees
of JWH. Mr. Koshi is responsible  for the supervision and administration of  all
aspects of order execution strategies and implementation of
 
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<PAGE>
trading  policies  and procedures.  Mr. Koshi  joined  JWH in  August 1988  as a
professional in the  Finance Department, and  since 1990 has  held positions  of
increasing  responsibility  in the  Trading Department.  He  received a  B.S. in
Finance from California State University at Long Beach.
 
    Mr. Barry S. Fox, age 32, is the director of research and is a member of the
Operating and Investment Policy  Committees of JWH. Mr.  Fox is responsible  for
the  design  and testing  of existing  and  new programs.  He also  supports and
maintains the proprietary systems/models  used to generate  JWH trades. Mr.  Fox
joined  JWH in March 1991  and since that time  has held positions of increasing
responsibility in  the  Research  and  Development  departments.  Prior  to  his
employment  at JWH,  Mr. Fox provided  sales and financial  analysis support for
Spreadsheet Solutions,  a  financial  software  development  company.  Prior  to
joining  Spreadsheet  Solutions  in October  1990,  Mr. Fox  operated  a trading
company where  he  traded his  own  proprietary  capital. Before  that,  he  was
employed  with Bankers  Trust as a  product specialist for  foreign exchange and
treasury options trading. He received a B.S. in Business Administration from the
University of Buffalo.
 
    Ms. Glenda G. Twist, age 46, is a director of JWH and has held that position
since August 1993. Ms. Twist announced  her resignation from JWH on January  15,
1997,  but will continue in  her present capacity for  the time being. Ms. Twist
joined JWH in September 1991 with responsibilities for corporate liaison and she
continues her duties in  that area. Her  responsibilities include assistance  in
the  day-to-day administration of the Florida office, and review and compilation
of financial  information  for  JWH.  Ms. Twist  was  President  of  J.W.  Henry
Enterprises   Corp.,  for   which  she   performed  financial,   consulting  and
administration services from January 1991 to August 1991. From 1988 to 1990, Ms.
Twist was  Executive  Director of  Cities  in  Schools, a  program  in  Arkansas
designed  to prevent students  from leaving school  before completing their high
school education.  She  received  her  B.S. in  Education  from  Arkansas  State
University.
 
    Mr.  John A.F. Ford, age 56, is the director of marketing and is a member of
the Operating Committee of JWH. Mr. Ford is responsible for the development  and
implementation of strategic marketing and communications programs. He joined JWH
in  May 1996  from J.P.  Morgan where  he had  been vice  president and  head of
corporate communications  for the  firm's European  operations, responsible  for
public relations, advertising, and marketing from February 1994 to October 1995.
He  was  previously in  a similar  position  with J.P.  Morgan at  the Euroclear
Operations Centre in Brussels from January  1992 to February 1994. From  October
1995 to May 1996 he undertook a number of independent consultancy projects while
relocating  to the  United States.  Prior to joining  J.P. Morgan,  Mr. Ford was
managing director of the European headquarters of Gavin Anderson & Co. (UK),  an
international  corporate and investor relations  consultancy, from February 1987
to December  1991. Mr.  Ford has  also  been involved  in advising  the  Chicago
Mercantile  Exchange  on marketing  its  services to  European  institutions and
advising the International Petroleum  Exchange in London  on similar issues.  He
also  helped market Mercury  Asset Management to  major institutions and pension
funds.
 
    Mr. Michael D.  Gould, age 41,  is director  of investor services  and is  a
member of the Operating Committee of JWH. He is responsible for general business
development  and oversees the investor services function. He joined JWH in April
1994 from Smith Barney Inc.,  where he served as  senior sales manager and  vice
president-futures  for  the Managed  Futures Department.  He held  the identical
position with the predecessor  firms of Shearson Lehman  Bros. and Lehman  Bros.
beginning  in November 1991. Prior to that time, he was engaged in a proprietary
trader development program at Tricon USA from September 1990 to October 1991. He
was a  registered financial  consultant  with Merrill  Lynch from  1985  through
August 1990.
 
    Mr.  Jack M. Ryng, age 35, C.P.A.,  joined JWH as the controller in November
1991. He is also a member of the Operating Committee of JWH. Prior to that time,
he was  a senior  manager with  Deloitte &  Touche where  he held  positions  of
increasing  responsibility since  September 1985 for  commodities and securities
industry clients.  His  clients  included  one of  the  largest  commodity  pool
operators  in the United  States, along with  broker/dealers, futures commission
merchants, investment banks, and  foreign exchange operations,  in the areas  of
accounting, regulatory compliance, and consulting. Prior to
 
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<PAGE>
his  employment  by the  Financial Services  Center  of Touche  Ross &  Co. (the
predecessor firm of Deloitte & Touche), he  worked for Leonard Rosen & Co. as  a
senior accountant. Mr. Ryng is a member of AICPA and the New York C.P.A. Society
and  is a member of the board of the New York operations of the FIA. He received
a B.S. in Business Administration from Duquesne University.
 
    Mr. Michael J. Scoyni, age 50, is a managing director of JWH and a principal
of Westport. Mr. Scoyni has been associated  with Mr. Henry since 1974 and  with
JWH  since 1982. He  was engaged in  research and development  for John W. Henry
Company (JWH's predecessor) from November 1981 to December 1982 and subsequently
has been employed by JWH in positions of increasing responsibility. He  received
a B.A. in Anthropology from California State University.
 
    Mr.  Christopher  E. Deakins,  age 37,  is a  vice president  of JWH.  He is
responsible for  general business  development  and investor  services  support.
Prior  to joining JWH in  August 1995, he was  a vice president, national sales,
and a  member  of the  management  Team for  RXR  Capital Management,  Inc.  His
responsibilities  consisted  of business  development, institutional  sales, and
broker dealer support. Prior to joining RXR in August 1986, he was engaged as an
account executive  for Prudential-Bache  Securities starting  in February  1985.
Prior  to that, Mr. Deakins was an  account executive for Merrill Lynch, Pierce,
Fenner and Smith  Incorporated. He received  a B.A. in  Economics from  Hartwick
College.
 
    Chris J. Lautenslager, age 39, is a Vice President of JWH. He is responsible
for general business development and investor services support. Prior to joining
JWH  in April 1996, he was the Vice President of Institutional Sales for I/B/E/S
International, Inc., a distributor  of corporate earnings estimate  information.
His  responsibilities consisted  of business  development and  support of global
money managers and investment bankers. Prior to his employment with I/B/E/S, Mr.
Lautenslager devoted time to personal activities from April 1994 to March  1995,
following  the closing  of the  Stamford, Connecticut  office of  Gruntal & Co.,
where he had worked as a  proprietary equity trader since November 1993.  Before
that,  he  held  the same  position  at  S.A.C. Capital  Management  starting in
February 1993.  From October  1987  to December  1992,  Mr. Lautenslager  was  a
partner and managing director of Limitless Option Partners, a registered Chicago
Mercantile Exchange trading and brokerage organization, where he traded currency
futures  and options. He  received a B.S.  in Accounting from  the University of
Colorado and a Masters in Management from Northwestern University.
 
    Mr. Edwin B. Twist, age 46, is a director of JWH and has held that  position
since  August 1993. Mr.  Twist is also  a director of  JWH RMI and  JWH AMI. Mr.
Twist joined JWH  as internal projects  manager in September  1991. Mr.  Twist's
responsibilities  include assistance  in the day-to-day  administration of JWH's
Florida office and internal projects. Mr.  Twist was secretary and treasurer  of
J.W.  Henry Enterprises Corp.,  a Florida corporation  engaged in administrative
and financial consulting services, for which he performed financial,  consulting
and administrative services from January 1991 to August 1991.
 
    Ms.  Nancy O. Fox, age  31, C.P.A., is a vice  president and the director of
investment support of JWH. She is  responsible for the day-to-day activities  of
the  Investment  Support Department,  including  all aspects  of  operations and
performance reporting.  Prior to  joining JWH  in January  1992, Ms.  Fox was  a
senior  accountant  at  Deloitte  & Touche,  where  she  served  commodities and
securities industry clients and had positions of increasing responsibility since
July 1987. Ms.  Fox is  a member  of the  AICPA and  the New  Jersey Society  of
C.P.A.s. She received a B.S. in Accounting and Finance from Fairfield University
and an MBA from the University of Connecticut.
 
    Ms.  Wendy B. Goodyear, age  34, is director of  the office of the chairman.
She is responsible for managing  and coordinating projects involving Mr.  Henry.
Ms.  Goodyear joined JWH  in October 1995 as  director of marketing, responsible
for the development and implementation of strategic marketing and communications
programs. Prior to her employment at JWH,  Ms. Goodyear was a vice president  at
Citibank where she held several positions, including product development manager
for  the  depository  receipt business  and  marketing manager  for  the pension
business. Prior to joining  Citibank in May 1993,  Ms. Goodyear was employed  at
Bankers    Trust   Company   from    1985   where   she    held   positions   of
 
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<PAGE>
increasing responsibility in both the  private bank and pension businesses.  Ms.
Goodyear  received a  B.A. in  History from  the University  of Virginia  and an
M.B.A. from the Stern School of Business at New York University.
 
    Mr. Julius A. Staniewicz, age 38, is the senior strategist in JWH's  Product
Development  Department and a  member of the  Operating Committee of  JWH. He is
also President of JWH AMI  and FPI. Prior to joining  JWH in March of 1992,  Mr.
Staniewicz  was employed with Shearson Lehman Brothers as a financial consultant
starting in April 1991. Prior to that,  beginning in 1990, Mr. Staniewicz was  a
vice  president  of  Phoenix Asset  Management,  a commodity  pool  operator and
introducing broker, where he  helped develop futures  funds for syndication  and
institutional investors. From 1986 to 1989, Mr. Staniewicz worked in the managed
futures  department at Prudential-Bache  Securities, Inc., as  an assistant vice
president and co-director of managed  futures. In this capacity, Mr.  Staniewicz
oversaw  all  aspects  of  forming and  offering  futures  funds,  including the
selection and monitoring of  CTAs. Mr. Staniewicz received  a B.A. in  Economics
from Cornell University.
 
    Ms. Melanie A. Caldwell is human resources and administrative director and a
member  of  the  Operating  Committee of  JWH  (NFA  registration  pending). Ms.
Caldwell is  responsible  for all  aspects  of human  resources  and  facilities
management  of JWH. Prior to joining JWH, in May 1995, Ms. Caldwell operated her
own facilities  management consulting  business from  August 1992  to May  1995.
Prior  to operating her own business, Ms.  Caldwell was senior vice president of
Greenwich Capital Markets, Inc.,  a primary dealer  in fixed income  securities,
from  March 1985 to July  1992. Ms. Caldwell received  her B.S. in Sociology and
M.S. in Industrial Relations from Purdue University.
 
    Mr. Andrew D. Willard is director of  technology at JWH and a member of  the
Operating   Committee  of  JWH  (NFA   registration  pending).  Mr.  Willard  is
responsbile for  all aspects  of the  JWH technology  infrastructure,  including
future development. He joined JWH in August 1995 after a 20-year career starting
in  January  1973  at Bankers  Trust  Company  in London,  Hong  Kong  and, most
recently, New York where he was head of technology for the bank's  International
Investment Management Divisions. He also served on the bank's steering committee
setting  company-wide policies for  future use of technology.  Prior to his most
recent  position  at  Bankers  Trust  Company  in  New  York,  Mr.  Willard  was
responsible  for all  technology support for  the bank's offices  in Japan, Hong
Kong and Singapore. He attended London Nautical College.
 
LEGAL AND ETHICAL CONCERNS
 
    There  neither  now  exists   nor  has  there   ever  previously  been   any
administrative, civil, or criminal action against JWH or its principals which is
material,  except that  in September  1996, JWH was  named as  a co-defendant in
purported class  action lawsuits  filed in  the California  Superior Court,  Los
Angeles  County and in the New York  Supreme Court, New York County. In November
1996, JWH was  named as  a co-defendant in  a purported  class action  complaint
filed  in the Superior  Court of the  State of Delaware,  New Castle County that
contained the same allegations  as the New York  and California complaints.  The
actions,  which seek  unspecified damages,  purport to  be brought  on behalf of
investors in certain DWR commodity pools, some of which are advised by JWH,  and
are  primarily  directed  at  DWR's  alleged  fraudulent  selling  practices  in
connection with the marketing of those pools. These actions are the same matters
as those discussed under "Certain Litigation" below. JWH is essentially  alleged
to  have aided and abetted or directly participated with DWR in those practices.
JWH believes the allegations against it are without merit; it intends to contest
these allegations vigorously  and is  convinced that it  will be  shown to  have
acted properly and in the best interest of investors.
 
    JWH  and  Mr.  Henry  may  engage in  discretionary  trading  for  their own
accounts, and may trade for the  purpose of testing new investment programs  and
concepts, as long as such trading does not amount to a breach of fiduciary duty.
In the course of such trading, JWH and Mr. Henry may take positions in their own
accounts  which are the same or opposite  from client positions due to testing a
new quantitative model or program,  a neutral allocation system, and/or  trading
pursuant  to individual  discretionary methods, and  on occasion  orders may get
better fills than the  client accounts. Records for  these accounts will not  be
made  available  to clients.  Employees and  principals of  JWH (other  than Mr.
Henry)
 
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are not  permitted to  trade on  a discretionary  basis in  futures, options  on
futures  or forward contracts. However, such principals and employees may invest
in investment  vehicles  that trade  futures,  options on  futures,  or  forward
contracts,  when an independent  trader manages trading in  that vehicle, and in
the JWH Employee  Fund, L.P.,  which is  managed by  JWH. The  records of  these
accounts also will not be made available to clients.
 
THE OPERATING COMMITTEE
 
    The  Operating  Committee  is the  senior  management  group at  JWH  and is
responsible for the development and implementation of JWH's long-term strategies
and objectives.  The Operating  Committee also  coordinates and  oversees  JWH's
daily operations.
 
THE INVESTMENT POLICY COMMITTEE (THE "IPC")
 
    The  IPC is  one vehicle  for decision-making at  JWH about  the content and
application of JWH trading programs.  Composition of the IPC, and  participation
in  its discussions and decisions by non-members, may vary over time. The IPC is
an interdepartmental advisory  body which meets  periodically to discuss  issues
relating to the JWH trading programs and their application to markets, including
research on markets and strategies in relation to the proprietary trading models
employed  by JWH.  JWH's proprietary  research group  may determine  new markets
which should be traded in given portfolios, or determine markets which should be
removed from given portfolios. Non-proprietary recommendations from research are
then presented to  and discussed by  the IPC,  which may recommend  them to  the
Chairman  for approval. Proprietary  research findings are  reviewed directly by
the Chairman before implementation. All  recommendations of the IPC are  subject
to  final approval  by the  Chairman. The IPC  does not  make particular trading
decisions. The trading department initiates and liquidates positions and manages
JWH portfolios in  accordance with the  firm's proprietary trading  methodology,
which  is  not  overruled  unless  JWH's Chief  Trader  or  Director  of Trading
Administration determines that doing so is  in the best interest of clients.  No
trade  indications are overruled  without the express  approval of the Chairman.
The Chairman  may also  notify the  Trading Department  at any  time of  special
situations   which  he  deems  may  require   a  modification  in  applying  the
methodology.
 
THE JWH TRADING APPROACH
 
    JWH specializes  in managing  institutional and  individual capital  in  the
global  futures, interest rate and foreign exchange markets. Since 1981, JWH has
developed and implemented  proprietary trend-following  trading techniques  that
focus  on long-term trends  rather than short-term,  day-to-day trends. Each JWH
trading system is a technical trend-following system.
 
THE JWH INVESTMENT PHILOSOPHY
 
    The basis of the JWH investment philosophy is that prices for all  financial
instruments  reflect human reactions to external  events. Accordingly, it can be
expected that a series  of political, economic,  social or environmental  events
will  create patterns of price movements, or  trends. When a sequence of similar
events is repeated at a later time, the price trends often reoccur. JWH programs
attempt  to  capture  the  profit  opportunities  created  by  sustained  market
movements.
 
    By  conducting analysis  on historic price  data for  commodity markets, the
firm's founder,  John  W.  Henry,  developed  proprietary  systems  designed  to
identify  important price  trends and determine  optimal entry  and exit points.
JWH's comprehensive research  has also  led to the  development of  quantitative
models  which suggest the appropriate content and weighting for each position in
a global portfolio.
 
    The investment philosophy of JWH  is supported by intensive risk  management
and   continuing  research  to   enhance  the  application   of  the  underlying
methodologies. Risk is measured and managed in a variety of ways. Within  client
portfolios,   individual   positions  are   monitored   on  a   stand-alone  and
portfolio-weighted basis. Positions are matched with stop-loss provisions  which
are altered regularly to reflect changing market conditions.
 
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    For more than a decade, JWH has recognized the importance of global trading.
Financial  markets around the world  are increasingly interrelated, with actions
in one country's markets often influencing markets in other parts of the  world.
Many of the JWH investment programs maintain positions in a variety of worldwide
markets   in  seeking  to  achieve  material  benefits  from  the  opportunities
presented.
 
    Although price  trends  are  the  ultimate product  of  markets,  there  are
procedures  built into JWH's programs that  have been designed to affect trading
efficiency and preserve client capital. JWH's research on these and other issues
has materially improved risk-adjusted performance for clients over the past  few
years.
 
A DISCIPLINED INVESTMENT PROCESS
 
    Regardless  of recent performance in any one market, or widely held opinions
on future market direction, JWH maintains a disciplined investment process.  The
consistent application of JWH's investment techniques facilitates the ability to
participate in rising or falling markets without bias.
 
    The  first  step in  the  JWH investment  process  is the  identification of
sustained price movements-- or trends--in a  given market. While there are  many
ways   to  identify  trends,  JWH  uses  mathematical  models  that  attempt  to
distinguish real trends from  interim volatility. It  also presumes that  trends
often exceed in duration the expectation of the general marketplace.
 
    JWH's  historical performance  demonstrates that, because  trends often last
longer  than  most  market  participants  expect,  significant  returns  can  be
generated  from positions held over a long period of time. As such, JWH attempts
to pare losing positions relatively quickly while allowing profitable  positions
to  mature. Most losing positions  are closed within a  few days or weeks, while
others--those where a profitable  trend continues--are retained. Positions  held
for  two to four months  are not unusual, and positions  have been held for more
than one year.  Historically, only thirty  to forty percent  of all trades  made
pursuant  to the investment methods have been profitable. Large profits on a few
trades in  positions  that typically  exist  for several  months  have  produced
favorable  results  overall.  Generally, most  losing  positions  are liquidated
within weeks. The maximum equity retracement  JWH has experienced in any  single
program  was nearly  sixty percent.  Clients should  understand that  similar or
greater drawdowns are possible in the future.
 
    To reduce exposure to volatility in any particular market, most JWH programs
participate in several markets at one time. In total, JWH participates in up  to
60  markets, encompassing interest rates, foreign exchange, and commodities such
as agricultural products, energy and  precious metals. Most investment  programs
maintain  a consistent portfolio  composition to allow  opportunities in as many
major market trends as possible.
 
    Throughout the investment  process, risk controls  are maintained to  reduce
the possibility of an extraordinary loss in any one market. Proprietary research
is  conducted on an  ongoing basis to  refine the JWH  investment strategies and
attempt to  reduce  volatility while  maintaining  the potential  for  excellent
performance.
 
    JWH  at its sole discretion may  override computer-generated signals and may
at times use discretion in the application of its quantitative models which  may
affect  performance  positively  or  negatively.  Subjective  aspects  of  JWH's
quantitative models also include the determination of leverage, commencement  of
trading   an  account,  contracts  and  contract  months,  and  effective  trade
execution.
 
PROGRAM MODIFICATIONS
 
    In an  effort to  maintain and  improve performance,  JWH has  engaged,  and
continues  to  engage  in an  extensive  program  of research.  While  the basic
philosophy underlying  the firm's  investment  methodology has  remained  intact
throughout  its  history,  the potential  benefits  of employing  more  than one
investment methodology alternatively, or in  varying combinations, is a  subject
of continual testing, review and evaluation. Extensive research and analysis may
suggest  substitution of  alternative methodologies  with respect  to particular
contracts  in   light  of   relative  differences   in  historical   performance
 
                                       61
<PAGE>
achieved  through  testing different  parameters.  In addition,  risk management
research and analysis may suggest modifications regarding the relative weighting
among various contracts, the addition or deletion of particular contracts for  a
program or a change in the degree of leverage employed.
 
    As  capital in each JWH program increases, additional emphasis and weighting
may be  placed  on certain  markets  which have  historically  demonstrated  the
greatest  liquidity  and profitability.  Furthermore,  the weighting  of capital
committed to various  markets in the  trading programs is  dynamic, and JWH  may
vary  the weighting at its discretion  as market conditions, liquidity, position
limit considerations and other factors  warrant. Investors will not be  informed
of the changes.
 
LEVERAGE
 
    Leverage  adjustments have been and continue to be an integral part of JWH's
investment strategy.  At its  discretion,  JWH may  adjust leverage  in  certain
markets  or entire programs.  Leverage adjustments may be  made at certain times
for some programs but not for others.  Factors which may affect the decision  to
adjust  leverage include:  ongoing research, program  volatility, current market
volatility, risk exposure, and subjective judgement and evaluation of these  and
other   general  market  conditions.  Such  decisions  to  change  leverage  may
positively or negatively affect performance, and will alter risk exposure for an
account. Leverage  adjustments  may lead  to  greater profits  or  losses,  more
frequent and larger margin calls, and greater brokerage expense. No assurance is
given  that such leverage adjustments will be  to the financial advantage of JWH
clients. JWH reserves the right, in its sole discretion, to adjust its  leverage
policy without notification to investors.
 
ADDITION, REDEMPTION AND REALLOCATION OF CAPITAL FOR COMMODITY POOL OR FUND
ACCOUNTS
 
    JWH  has developed procedures  for investing fund  accounts that provide for
additions, redemptions and/or reallocations  of capital. Investors who  purchase
or  redeem units in  a fund are  most frequently permitted  to do so  at a price
equal to the  net asset  value per unit  on the  close of business  on the  last
business day of each month or quarter. In addition, funds may reallocate capital
among  advisors at the close of business on the last business day of each month.
In order to provide market exposure commensurate with the equity in the  account
on the date of these transactions, JWH's general practice is to adjust positions
at  a time as near as possible to the close of business on the last trading date
of each  month. The  intention  is to  provide  for additions,  redemptions  and
reallocations  at a net asset value  per unit that will be  the same for each of
these transactions and to eliminate possible  variations in net asset value  per
unit  that  could  occur as  a  result of  price  changes if,  for  example, all
additions were calculated on the first  day of the subsequent month.  Therefore,
JWH  may, in its sole discretion, adjust its investment of the assets associated
with the addition, redemption and reallocation of capital at a time as close  as
possible  to the  close of business  on the last  business day of  each month to
reflect the amount then available for  trading. Based on JWH's determination  of
liquidity  and  other  market conditions,  JWH  may decide  to  commence trading
earlier in the day on, or before, the last business day of the month or, in  its
sole  discretion, delay adjustments to trading for  an account to a date or time
after the close of business on the last day of the month. No assurance is  given
that  JWH will be able  to achieve the objectives  described above in connection
with the funding level changes. The use of discretion by JWH in the  application
of this procedure may affect performance positively or negatively.
 
PHYSICAL OR CASH COMMODITIES
 
    In  addition to  futures contracts,  JWH may from  time to  time for certain
clients trade  spot  and forward  contracts  on physical  or  cash  commodities,
including  specifically gold bullion,  when it believes  that such markets offer
comparable or  superior  market  liquidity  or  a  greater  ability  to  execute
transactions  at  a  single  price. Such  transactions,  as  opposed  to futures
transactions, relate to the purchase and sale of specific physical  commodities.
Whereas  futures contracts are  generally uniform except  for price and delivery
time, cash contracts may differ  from each other with  respect to such terms  as
quantity, grade, mode of shipment, terms of payment, penalties, risk of loss and
the like. There is no limitation on the daily price movements of spot or forward
contracts  transacted  through  banks,  brokerage firms  or  dealers,  and those
entities are  not required  to continue  to make  markets in  any commodity.  In
addition,  the CFTC does  not comprehensively regulate  such transactions, which
are
 
                                       62
<PAGE>
subject to the risk of the foregoing entities' failure, inability or refusal  to
perform  with respect  to such  contracts. No  such trading  has previously been
undertaken on behalf of the Partnership, nor will any such trading be undertaken
on behalf of the Partnership without the consent of the General Partner. It  has
not  been determined at this time whether any such trading will be undertaken on
behalf of the Partnership in the future.
 
    The JWH programs often make trades in markets that have lower trading volume
and are  less  liquid,  such as  the  markets  for coffee,  cotton  and  certain
currencies.  JWH  operates  each  JWH  program  as  a  completely  separate  and
independent program.
 
    Historically, the assets of  the Partnership were  traded pursuant to  JWH's
InterRate-TM-  (a  trading program  no longer  operated  by JWH),  Financial and
Metals Portfolio, The World Financial Perspective, Global Diversified  Portfolio
and  International Foreign  Exchange Program.  However, the  General Partner, by
agreement with  the Trading  Advisor, will  reallocate the  Partnership's  funds
among  the Trading Advisor's  various trading programs  in proportions different
than previously employed, and will allocate assets of the partnership to trading
systems of  the  Trading Advisor  that  were  not previously  utilized  for  the
Partnership. It is the intention of the General Partner and the Trading Advisor,
effective  approximately as of  the date of the  Closing, that the Partnership's
assets will be  allocated 20% to  each of the  Original Investment Program,  the
Financial  and  Metals Portfolio,  The World  Financial Perspective,  the Global
Financial Portfolio,  and the  International Currency  and Bond  Portfolio.  The
percentage  of the Partnership's assets allocated to the various programs of the
Trading Advisor may  change at any  time and from  time to time  as a result  of
reallocations upon the agreement of the General Partner and the Trading Advisor,
which  shall be at their  collective discretion, and will  change as a result of
profits and losses in each such program.
 
DESCRIPTION OF JWH'S TRADING PROGRAMS
 
ORIGINAL INVESTMENT PROGRAM
 
    The Original Investment Program,  the first program  offered by JWH,  offers
access  to a  spectrum of worldwide  financial and  nonfinancial futures markets
using a disciplined trend identification  investment approach. This program  has
enjoyed  an improved risk/reward profile since  1992, when the sector allocation
was altered  and  enhanced  risk management  procedures  were  implemented.  The
Original  Investment Program  utilizes a  long-term quantitative  approach which
always maintain  a position--  long  or short--in  every  market traded  by  the
program.
 
FINANCIAL AND METALS PORTFOLIO
 
    The   Financial  and   Metals  Portfolio  attempts   to  deliver  attractive
risk-adjusted returns in global financial and precious metals markets.  Currency
positions  are  held  both  as  outrights--trading  positions  taken  in foreign
currencies versus the U.S.  dollar--and cross rates--trading foreign  currencies
against  each other--in the interbank market and occasionally futures exchanges.
This program  is  designed  to  identify  and  capitalize  on  intermediate  and
long-term price movements in these markets using a systematic approach to ensure
disciplined investment decisions. If a trend is identified, the program attempts
to  take a position; in nontrending  market environments, the program may remain
neutral or liquidate open positions.
 
THE WORLD FINANCIAL PERSPECTIVE
 
    The World Financial Perspective seeks to capitalize on market  opportunities
by  holding positions from multiple currency perspectives, including the British
pound, German mark, Japanese yen, Swiss  franc and U.S. dollar. This program  is
designed  to  systematically identify  long-term  price movements  in financial,
metals and energy markets.  The World Financial  Perspective always maintains  a
futures position--long or short--in every market traded by the program.
 
                                       63
<PAGE>
GLOBAL FINANCIAL PORTFOLIO
 
    Global  Financial Portfolio  offers access  to a  small group  of energy and
financial  markets,  including  global  currencies,  interest  rates  and  stock
indices.  This program is designed to identify and capitalize on long-term price
movements using a disciplined trend identification approach. This program always
maintains a  futures position--long  or  short--in every  market traded  by  the
program
 
INTERNATIONAL CURRENCY AND BOND PORTFOLIO
 
    Using  a more  conservative approach  compared to  the leverage  used in the
other JWH programs, the International Currency and Bond Portfolio (ICB)  targets
the  long  end of  interest rate  and currency  futures of  major industrialized
nations.  Foreign  exchange  positions  are  held  both  as   outrights--trading
positions  taken  in  foreign  currencies  versus  the  U.S.  dollar--and  cross
rates--trading foreign  currencies  against  each  other.  ICB  is  designed  to
identify  and capitalize  on intermediate and  long-term price  movements in the
world's bond and foreign exchange markets using a systematic approach to  ensure
disciplined  investment decisions.  If a trend  is identified,  the program will
take a position; in nontrending  market environments, the program may  liquidate
positions and remain neutral.
 
    The  International Foreign Exchange Program (Forex) invests in a broad range
of major and minor currencies primarily  in the highly liquid interbank  market.
Positions  are taken as outrights or cross  rates. Forex is designed to identify
and capitalize on intermediate-term price movements in these markets.
 
    The Global Diversified Portfolio invests  in futures and forwards  contracts
traded  on domestic  and foreign  exchanges in over  60 markets.  The program is
designed to  indentify  and  capitalize  on  intermediate  and  long-term  price
movements.
 
    The  JWH programs listed above  were trading in the  following sectors as of
December 31,  1996:  agriculture,  energy, precious  and  base  metals,  foreign
exchange,  global stock indices,  bonds, U.S. interest  rates, European interest
rates, and Pacific Rim interest rates.
 
    As of December  31, 1996,  the aggregate  amount of  funds under  management
pursuant  to the trading programs then  being employed for the Partnership were:
Financial and Metals Portfolio, $1,182,736,149; The World Financial Perspective,
$21,916,179; the Global Diversified Portfolio, $161,765,331 (including  notional
funds);  and the  International Foreign  Exchange Program,  $69,780,961. For the
additional trading programs  that the  General Partner and  the Trading  Advisor
expect  to be trading  for the Partnership  approximately as of  the date of the
Closing, the Global  Financial Portfolio, the  Original Investment Program,  and
the  International Currency  and Bond Portfolio,  the aggregate  amount of funds
under  management  as  of  December  31,  1996  was  $95,299,973,   $236,557,401
(including  notional funds),  and $2,458,195,  respectively. As  of December 31,
1996 the aggregate  amount of  all funds under  management pursuant  to all  JWH
programs was $1.9 billion.
 
                                       64
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                          ORIGINAL INVESTMENT PROGRAM
 
    Although  the Original  Investment Program  did not  trade a  portion of the
assets of the Partnership as of December 31, 1996, effective approximately as of
the Closing, 20%  of the Partnership's  assets are expected  to be allocated  to
this program.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  Original Investment Program*
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  October 1982
           Number of open accounts:  27
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program (including notional funds):  $236.6 million
           Aggregate assets in program (excluding notional funds):  $223.9 million
           Largest monthly drawdown:  (18.1)%--(2/92)
           Largest month-end peak-to-valley drawdown:
             (62.1)%--(6/88-5/92)
           1996 annual return:  22.6%
           1995 annual return:  53.2%
           1994 annual return:  (5.7)%
           1993 annual return:  40.6%
           1992 annual return:  10.9%
</TABLE>
 
*   In  November 1994, one proprietary account  commenced trading pursuant to an
    investment in a fund. This proprietary account is traded in exactly the same
    manner that client funds would be traded, and is subject to all of the  same
    fees  and expenses that would be charged to a client investment in the fund;
    therefore there is no material impact on the rates of return presented.
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
                                       65
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                         FINANCIAL AND METALS PORTFOLIO
 
    The  following  reflects  the  composite  performance  information  of JWH's
Financial and  Metals  Portfolio, which,  as  of  December 31,  1996,  traded  a
majority of the assets of the Partnership, and effective approximately as of the
Closing,  20% of the Partnership's  assets are expected to  be allocated to this
program.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  Financial and Metals Portfolio*
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  October 1984
           Number of open accounts:  44
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program:  $1.2 billion
           Largest monthly drawdown:  (27.7)%--(1/92)
           Largest month-end peak-to-valley drawdown:
             (58.8)%--(12/91-5/92)
           1996 annual return:  29.7%
           1995 annual return:  38.5%
           1994 annual return:  (5.3)%
           1993 annual return:  46.8%
           1992 annual return:  (10.9)%
</TABLE>
 
*   In May 1991 one proprietary account began trading and in March 1992 a second
    proprietary account  began  trading pursuant  to  the Financial  and  Metals
    Portfolio.  Both  accounts  appear  in the  capsule  performance  from their
    inception until August  1995. The  maximum percentage  of proprietary  funds
    during this time was less than 0.5%.
 
    Beginning  in  May 1992,  35%  of the  assets  in the  Financial  and Metals
    Portfolio were deleveraged 50% at the request of a client. The  deleveraging
    materially  affected the  rates of return  in JWH's track  records. The 1992
    annual rate of return for these  deleveraged accounts was (24.3)%. The  1992
    annual rate of return for the Financial and Metals Portfolio Composite Track
    Record  was (10.9)%. If these accounts  had been excluded from the Financial
    and Metals Portfolio track record, the  1992 annual rate of return would  be
    (3.9)%. The effect of this deleveraging was eliminated in September 1992.
 
    The   Financial  and  Metals  Composite  Performance  Capsule  includes  the
    performance of several accounts  that do not  participate in global  markets
    due  to  their  smaller account  equities  which  do not  meet  the minimums
    established for  this  program.  Accounts  not  meeting  such  minimums  can
    experience  performance  materially  different than  the  performance  of an
    account which  meets  the minimum  account  size. The  performance  of  such
    accounts  has  no  material  effect  on  the  overall  Financial  and Metals
    Composite Performance Capsule.
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
                                       66
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                        THE WORLD FINANCIAL PERSPECTIVE
 
    The following reflects  the composite performance  information of JWH's  The
World Financial Perspective, which, as of December 31, 1996, traded a portion of
the  assets of the  Partnership, and effective approximately  as of the Closing,
20% of the Partnership's assets are expected to be allocated to this program.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  The World Financial Perspective
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  April 1987
           Number of open accounts:  4
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program:  $21.9 million
           Largest monthly drawdown:  (25.5)%--(1/92)
           Largest month-end peak-to-valley drawdown:
             (38.4)%--(12/91-10/92)
           1996 annual return:  40.9%
           1995 annual return:  32.2%
           1994 annual return:  (15.2)%
           1993 annual return:  13.7%
           1992 annual return:  (23.2)%
</TABLE>
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
                                       67
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                           GLOBAL FINANCIAL PORTFOLIO
 
    Although the  Global Financial  Portfolio did  not trade  a portion  of  the
assets of the Partnership as of December 31, 1996, effective approximately as of
the  date of  the Closing, 20%  of the  Partnership's assets are  expected to be
allocated to this program.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  Global Financial Portfolio*
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  June 1994
           Number of open accounts:  5
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program:  $95.3 million
           Largest monthly drawdown:  (19.5)%--(11/94)
           Largest month-end peak-to-valley drawdown:
             (48.9)%--(6/94-1/95)
           1996 annual return:  32.4%
           1995 annual return:  86.2%
           1994 period return (7 months):  (37.7)%
</TABLE>
 
*   In July  1995, one  proprietary  account commenced  trading pursuant  to  an
    investment in a fund. This proprietary account is traded in exactly the same
    manner  that client funds would be traded, and is subject to all of the same
    fees and expenses that would be charged to a client investment in the  fund;
    therefore there is no material impact on the rates of return presented.
 
    Since  the  inception  of  the Global  Financial  Portfolio,  the  timing of
    individual account openings has had a  material impact on compound rates  of
    return.   Based  on  the  account  startup  methodology  used  by  JWH,  the
    performance of individual accounts composing the Global Financial  Portfolio
    composite  performance summary  has varied. In  1994, the  two accounts that
    were open generated separate  rates of return of  negative 44% and  negative
    17%,  respectively. For the period January 1995 through June 1995, the three
    open accounts  achieved separate  rates  of return  of  101%, 75%  and  67%,
    respectively.  As of June 1995, these accounts now maintain mature positions
    and are performing consistently with each other. Due to the six month period
    in 1995 of varied performance, the three accounts achieved an annual rate of
    return for 1995 of 122%, 92% and 78% respectively.
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
                                       68
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                   INTERNATIONAL CURRENCY AND BOND PORTFOLIO
 
    Although the  International Currency  and  Bond Portfolio  did not  trade  a
portion  of the  assets of  the Partnership as  of December  31, 1996, effective
approximately as of the Closing, 20% of the Partnership's assets are expected to
be allocated to this program.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  International Currency and Bond Portfolio*
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  January 1993
           Number of open accounts:  1
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program:  $2.5 million
           Largest monthly drawdown:  (7.8)%--(7/94)
           Largest month-end peak-to-valley drawdown: (23.6)%--(6/94-1/95)
           1996 annual return:  19.9%
           1995 annual return:  36.5%
           1994 annual return:  (2.3)%
           1993 annual return:  14.8%
</TABLE>
 
*   In October 1995, one  proprietary account commenced  trading pursuant to  an
    investment in a fund. This proprietary account is traded in exactly the same
    manner  that client funds would be traded, and is subject to all of the same
    fees and expenses that would be charged to a client investment in the  fund;
    therefore there is no material impact on the rates of return presented.
 
                         JOHN W. HENRY & COMPANY, INC.
                     INTERNATIONAL FOREIGN EXCHANGE PROGRAM
 
    The  following  reflects  the  composite  performance  information  of JWH's
International Foreign Exchange Program, which, as of December 31, 1996, traded a
portion of the assets of the Partnership, but is not expected to continue to  do
so as of the Closing, but may do so in the future.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  International Foreign Exchange Program
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  August 1986
           Number of open accounts:  7
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program:  $69.8 million
           Largest monthly drawdown:  (13.6)%--(1/92)
           Largest month-end peak-to-valley drawdown:
             (35.9)%--(8/92-1/95)
           1996 annual return:  3.7%
           1995 annual return:  16.9%
           1994 annual return:  (6.3)%
           1993 annual return:  (4.5)%
           1992 annual return:  4.5%
</TABLE>
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
                                       69
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                          GLOBAL DIVERSIFIED PORTFOLIO
 
    The following reflects the composite performance information of JWH's Global
Diversified  Portfolio, which, as of December 31,  1996, traded a portion of the
assets of the Partnership, but  is not expected to continue  to do so as of  the
Closing, but may do so in the future.
 
<TABLE>
<S>        <C>
           Name of CTA:  John W. Henry & Company, Inc.
           Name of program:  Global Diversified Portfolio*
           Inception of client trading by CTA:  October 1982
           Inception of client trading in program:  June 1988
           Number of open accounts:  14
           Aggregate assets overall:  $1.9 billion
           Aggregate assets in program (including notional funds):  $161.8 million
           Aggregate assets in program (excluding notional funds):  $149.9 million
           Largest monthly drawdown on an individual account basis:  (20.3)%--(7/91)
           Largest month-end peak-to-valley drawdown:
             (33.2)%--(12/91-5/92)
           1996 annual return:  26.9%
           1995 annual return:  19.6%
           1994 annual return:  10.1%
           1993 annual return:  59.8%
           1992 annual return:  (12.6)%
</TABLE>
 
*   From  July 1995  through December 1995  one proprietary  account was trading
    pursuant to an investment  in a fund. The  proprietary account is traded  in
    exactly the same manner that client funds would be traded, and is subject to
    all  of  the  same fees  and  expenses that  would  be charged  to  a client
    investment in the fund; therefore there  is no material impact on the  rates
    of return presented.
 
        PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
 
OTHER JWH PROGRAMS
 
    In  addition to  the Original Investment  Program, the  Financial and Metals
Portfolio, The World Financial Perspective, the Global Financial Portfolio,  the
International  Currency and  Bond Portfolio, the  International Foreign Exchange
Program, and the  Global Diversified  Portfolio (each of  which the  Partnership
either has allocated assets to in the past, will allocate assets to effective as
of  the  Closing, or  both,  in each  case  as specified  above),  JWH currently
operates five different programs for U.S. and foreign investors, none of  which,
as  of December 31,  1996, were utilized nor  expected to be  utilized as of the
Closing by  JWH  for the  Partnership.  The Partnership  did,  however,  utilize
InterRate-TM-,  a trading  program no  longer operated  by JWH.  Each program is
operated separately  and  independently.  These programs  are  intermediate  and
long-term,  quantitative, trend-analysis models  designed to achieve speculative
rates of return.
 
                                       70
<PAGE>
                         JOHN W. HENRY & COMPANY, INC.
                          NOTES ON PERFORMANCE RECORDS
 
    An investor should  note that in  a presentation of  past performance  data,
different accounts, even though traded according to the same investment program,
can  have varying  performance results.  The reasons  for this  include numerous
material differences  among  accounts  including, a)  the  period  during  which
accounts  are active; b) trading size  to equity ratio resulting from procedures
for the commencement  of trading  and appropriate  means of  moving toward  full
portfolio  commitment  of new  accounts  and new  capital;  c) the  size  of the
account, which  can influence  the  size of  positions  taken and  restrict  the
account from participating in all markets available to an investment program; d)
the  amount of  interest income earned  by an  account which will  depend on the
rates paid by  futures commission  merchants on  equity deposits  and/or on  the
portion  of an  account invested  in interest-bearing  obligations such  as U.S.
Treasury bills;  e) the  amount of  management  and incentive  fees paid  to  an
investment  manager and the amount of brokerage commissions paid which will vary
and will depend on  the fees negotiated  by the client with  the broker; f)  the
timing  of orders to open or close positions; g) the market conditions, which in
part determine the quality of trade executions; h) client trading  restrictions,
including  futures  vs. forward  contracts  and contract  months;  i) procedures
governing timing for  the commencement of  trading and means  of moving  towards
full  portfolio commitment of new accounts; j) variations in fill prices; and k)
the timing of additions and withdrawals.
 
    For the  purpose of  determining whether  there exist  material  differences
among  accounts traded  pursuant to the  same trading program,  JWH utilizes the
method described herein. The  gross trading performance  of each JWH  investment
program  and each individual JWH account within the relevant program is reviewed
and the following parameters established  by interpretations of the Division  of
Trading and Markets of the CFTC are calculated: (i) if the arithmetic average of
two  percentages is greater than 10 percentage points and the difference between
the two is less than 10% of their average; (ii) if the arithmetic average of the
two percentages  is greater  than  5 points  but less  than  10 points  and  the
difference  between the two is  1.5 percentage points or  less; and (iii) if the
arithmetic average  of  the  two percentages  is  less  than 5  points  and  the
difference  between  the two  is 1.0  percentage point  or less.  If one  of the
parameters (i) - (iii) is satisfied in  the review, then the results within  the
designated range are deemed "materially the same" or "not materially different."
The  parameters  (i)  -  (iii) determine  if  differences  between  accounts are
materially different. JWH further evaluates performance on a gross trading basis
for materiality  in an  overall context  each JWH  investment program  and  each
individual  JWH account  within the  relevant program  not satisfying  the above
parameters  whether  any  material  differences  that  are  detected  could   be
misleading after review of the reasons for the differences.
 
    During the periods covered by the JWH performance records, JWH increased and
decreased  leverage in certain markets and  entire investment programs, and also
altered which markets and contracts it traded for certain programs. In  general,
before  1993,  JWH programs  used greater  leverage than  they currently  do. In
addition, the  subjective aspects  listed under  the "A  Disciplined  Investment
Process"  section on page 61  have been utilized more  often in recent years and
therefore may have  had a more  pronounced effect on  performance during  recent
periods.  The use of  different investment programs (although  all accounts in a
program are traded in  accordance with the same  approach, such approach may  be
modified  periodically as a  result of ongoing research  and development by JWH)
will have an  effect on performance  results. In reviewing  the JWH  performance
records, prospective investors should bear in mind the possible effects of these
variations on the application of JWH's trading methods and rates of return.
 
    The   composite  rates   of  return  indicated   should  not   be  taken  as
representative of any  rate of return  actually achieved by  any single  account
represented  in the  tables. Investors are  further cautioned that  the data set
forth in the performance capsules is not indicative of any trading results which
may be attained by JWH in the  future since past performance is not  necessarily
indicative  of future results. On several  occasions, JWH has decreased leverage
over the last  five years,  in certain markets  and for  entire programs.  These
actions  have  reduced  the  volatility of  certain  programs  when  compared to
volatility
 
                                       71
<PAGE>
prior to the  decrease in  leverage. While historical  returns represent  actual
performance  achieved, investors  should be  aware that  the degree  of leverage
currently utilized may be significantly different from that used during previous
time periods.
 
    Prior to December 1991, capsule performance records are presented on a  cash
basis,  except as otherwise stated in the footnotes to the records. Using a cash
basis accounting  system  should  not,  for  most  months,  yield  a  materially
different  rate of return  than would have  been yielded using  an accrual basis
accounting system. Any differences  in the monthly rates  of return between  the
two  methods would be immaterial to the overall performance presented. Beginning
with the  change  to the  accrual  basis of  accounting  for incentive  fees  in
December  1991, the net effect on monthly net performance and the rate of return
in the capsule performance records of continuing to record interest income on  a
cash  basis is materially equivalent to the full accrual basis. In January 1993,
JWH began reflecting all items  of net performance on  an accrual basis for  the
International Currency and Bond Portfolio Composite Capsule Performance Record.
 
    Advisory  fees vary among  accounts in the case  of all programs. Management
fees vary from 0% to 6% of assets under management; incentive fees vary from  0%
to 25% of profits. Such variations may have a material impact on the performance
of an account from time to time.
 
    Due  to the commencement of trading in July 1996 by a new multi-program fund
managed by the Trading Advisor, the  Trading Advisor developed a new method  for
treating  the  accrual  of  incentive  fees  for  the  multi-advisor  funds  and
multi-program accounts it manages. For these accounts, JWH agreed that it  would
earn  incentive fees only when overall fund performance for multi-advisor funds,
or overall JWH performance  for multi-program accounts, as  the case may be,  is
profitable.  As applied,  this new method  presents incentive fees  due for each
program on a stand-alone basis--in  essence, to reflect the performance  results
that  would have been experienced by an  investor in that program, regardless of
any external business arrangements (such as a multi-advisor structure or the use
of multiple JWH programs) that might  have affected actual incentive fees  paid.
The  new method was applied initially in August 1996 performance. In that month,
a one-time adjustment to  performance rate of return  was made to each  affected
program  to show  the impact of  this adjustment from  program inception through
August 1996. In  the case of  certain programs, the  adjustment had a  material,
I.E.,  greater than 10%, impact on the  rate of return that otherwise would have
been shown. In the case of accounts that closed before JWH received an incentive
fee due to  the operation of  such netting arrangements,  a balancing entry  was
made to offset the effect of incentive fee accrual on ending equity.
 
NOTES TO JWH INVESTMENT PROGRAMS CAPSULE PERFORMANCE RECORDS
 
    Number  of open accounts is the number  of accounts directed by JWH pursuant
to the investment program shown as of December 31, 1996.
 
    Assets under management  in each program  is the aggregate  amount of  total
equity,  including "notional" equity  under management of  JWH in the Investment
Program shown as of December 31, 1996.
 
    Largest monthly  drawdown is  the largest  monthly loss  experienced by  any
single  account in the relevant investment program in any calendar month covered
by the capsule. "Loss" for these purposes is calculated on the basis of the loss
experienced by the individual account, expressed as a percentage of total equity
(including  "notional"  equity)  in   the  account.  Largest  monthly   drawdown
information includes the month and year of such drawdown.
 
    Largest  peak-to-valley drawdown  is the  largest percentage  decline by any
single account in the relevant investment program (after eliminating the  effect
of  additions and withdrawals) during the period covered by the capsule from any
month-end net asset value, without such month-end net asset value being  equaled
or  exceeded at a subsequent month-end by the individual account, expressed as a
percentage of the  total equity  (including "notional" equity)  in the  account.
Individual  accounts managed by  JWH may have  experienced larger peak-to-valley
drawdowns.
 
                                       72
<PAGE>
    Annual Rate of  Return is  calculated by  compounding the  monthly rates  of
return  over the  number of months  in a  given year. For  example, each month's
monthly rate of  return in  hundredths is  added to one  (1) and  the result  is
multiplied  by the previous month's compounded  monthly rate of return similarly
expressed. One (1) is then subtracted from the product. For periods of less than
one year, the results are year-to-date.
 
    Monthly Rates of Return  are calculated by dividing  net performance by  the
sum of the beginning equity, plus additions minus withdrawals. For such purposes
all  additions and withdrawals are effectively treated  as if they had been made
on the first day  of the month  even if, in fact,  they occurred later,  unless,
beginning  in December 1991, they are material  to the performance of a program,
in  which  case  they  are  time  weighted.  If  time  weighting  is  materially
misleading, then only the Accounts Traded method is utilized.
 
ADDITIONAL NOTES FOR CAPSULE PERFORMANCE RECORDS (THE "CAPSULES") UTILIZING THE
FULLY FUNDED SUBSET METHOD (JWH GLOBAL DIVERSIFIED PORTFOLIO)
 
    The  level  of "Actual  Funds" in  the  accounts that  make up  the capsules
currently requires  additional  disclosure.  Actual  Funds  are  the  amount  of
margin-qualifying  assets on deposit. "Nominal Account  Size" is a dollar amount
which clients  have agreed  to in  writing  and which  determines the  level  of
trading  in the  accounts regardless  of the  amount of  Actual Funds. "Notional
Funds" are the amount by  which the Nominal Account  Size exceeds the amount  of
Actual  Funds. The  amount of  Notional Funds in  the accounts  that compose the
records requires additional disclosure under  current CFTC policy. The  capsules
include  Notional Funds in excess of the 10% disclosure threshold established by
the CFTC and reflect the adoption  of a method of presenting rate-of-return  and
performance  disclosure authorized by the CFTC, referred to as the "Fully Funded
Subset" method. This  method permits notional  and fully funded  accounts to  be
included in a single performance record.
 
    To  qualify for use of the Fully Funded Subset method, an Advisory issued by
the CFTC requires that certain  computations be made in  order to arrive at  the
Fully  Funded Subset, and that the accounts for which performance is so reported
meet two tests  which are designed  to provide assurance  that the Fully  Funded
Subset  and the resultant  "Adjusted Rates of Return"  are representative of the
programs.
 
    These computations were performed for the Global Diversified Portfolio  from
January  1, 1992 until  June 30, 1996.  They were designed  to provide assurance
that the performance presented in the capsules and calculated on a Fully  Funded
Subset  basis would be representative of  such performance calculated on a basis
which includes notional equity in beginning equity, which is the denominator  in
the  calculation of rate of return. The Adjusted Rates of Return in the capsules
are calculated by dividing net performance for a period by the sum of  beginning
equity  plus additions minus withdrawals for that period. JWH believes that this
method yields substantially the same adjusted rates of return as would the Fully
Funded Subset  method were  there  any "fully  funded"  accounts, and  that  the
Adjusted Rates of Return for the capsules are representative of the programs for
the periods presented.
 
                                       73
<PAGE>
                              THE COMMODITY BROKER
 
DESCRIPTION OF THE COMMODITY BROKER
 
    Dean  Witter Reynolds Inc. ("DWR"), a Delaware corporation, is the commodity
broker for  the Partnership.  DWR is  also the  commodity broker  for the  other
commodity  pools for  which the  General Partner  serves as  general partner and
commodity pool operator.
 
    DWR is a  principal operating  subsidiary of DWD,  a publicly-owned  company
(see "The General Partner" as to the proposed merger of DWD and Morgan Stanley).
DWR  is a financial services company that provides to its individual, corporate,
and institutional  clients  services  as  a broker  in  securities  and  futures
interests,  a  dealer in  corporate,  municipal, and  government  securities, an
investment banker,  an investment  adviser, and  an agent  in the  sale of  life
insurance  and various other products and services.  DWR is a member firm of the
New York Stock Exchange, the American Stock Exchange, the Chicago Board  Options
Exchange,  other  major securities  exchanges, and  the National  Association of
Securities Dealers, Inc. ("NASD"), and is a clearing member of the Chicago Board
of Trade,  the Chicago  Mercantile Exchange,  the Commodity  Exchange Inc.,  and
other  major commodities exchanges. DWR is registered with the CFTC as a futures
commission merchant  and  is a  member  of the  NFA  in such  capacity.  DWR  is
currently  servicing  its clients  through a  network of  over 375  domestic and
international offices with  over 9,100 account  executives servicing  individual
and institutional client accounts.
 
BROKERAGE ARRANGEMENTS
 
    The  Partnership's  brokerage  arrangements  with  DWR,  including  the caps
imposed on certain expenses, are  discussed in "Conflicts of  Interest--Customer
Agreement  with DWR," "Description of Charges to the Partnership--2. Dean Witter
Reynolds Inc." and "--3. Other--(b) Transaction Fees and Costs."
 
    The General Partner will review at least annually the brokerage arrangements
with the  Partnership  to ensure  that  such brokerage  arrangements  are  fair,
reasonable,   and  competitive,  and  represent  the  best  price  and  services
available, taking into consideration, in  particular, when the commodity  broker
is  an "affiliate  " of  the General  Partner (as  such term  is defined  in the
Limited Partnership  Agreement):  (i) the  size  of the  Partnership;  (ii)  the
futures interests trading activity; (iii) the services provided by the commodity
broker,  the General Partner  or any affiliate thereof  to the Partnership; (iv)
the cost  incurred by  the commodity  broker  and the  General Partner  in  this
offering  of Units; (v)  the overall costs  to the Partnership;  (vi) any excess
interest and compensating balance benefits  to the commodity broker from  assets
held  thereby; and  (vii) if  the General  Partner does  not receive  any direct
compensation from the Partnership for its services as General Partner, the risks
incurred by the General Partner as such. See "Conflicts of Interest."
 
    The Customer  Agreement sets  forth  a standard  of  liability for  DWR  and
provides  for certain  indemnities of  DWR as  Commodity Broker.  See "Fiduciary
Responsibility."
 
                               CERTAIN LITIGATION
 
    At any given time, DWR is involved in numerous legal actions, some of  which
seek significant damages.
    On May 16, 1996, an NASD arbitration panel awarded damages and costs against
DWR  and  one of  its account  executives  in the  amount of  approximately $1.1
million, including punitive damages, to three customers who alleged, among other
things, fraud  and  misrepresentation  in  connection  with  their  individually
managed futures accounts (not commodity pools).
 
    On  September 6, 10, and 20, 1996,  and on March 13, 1997, similar purported
class actions  were filed  in the  Superior Court  of the  State of  California,
County  of Los  Angeles, on  behalf of  all purchasers  of interests  in limited
partnership commodity pools sold by  DWR. Named defendants include DWR,  Demeter
Management  Corporation, Dean Witter Futures  and Currency Management Inc., Dean
Witter, Discover &  Co. (all  such parties referred  to hereafter  as the  "Dean
Witter Parties"), the Partnership
 
                                       74
<PAGE>
(under  its original name), certain other limited partnership commodity pools of
which Demeter is the  general partner, and  certain trading advisors  (including
the  Trading Advisor) to those pools.  Similar purported class actions were also
filed on September  18 and 20,  1996 in the  Supreme Court of  the State of  New
York,  New York County,  and on November 14,  1996 in the  Superior Court of the
State of  Delaware, New  Castle  County, against  the  Dean Witter  Parties  and
certain  trading  advisors  (including the  Trading  Advisor) on  behalf  of all
purchasers  of  interests  in  various  limited  partnership  commodity   pools,
including  the  Partnership, sold  by DWR.  Generally, these  complaints allege,
among   other   things,   that   the   defendants   committed   fraud,   deceit,
misrepresentation,  breach  of fiduciary  duty,  fraudulent and  unfair business
practices, unjust enrichment,  and conversion  in connection with  the sale  and
operation  of the  various limited  partnership commodity  pools. The complaints
seek unspecified amounts of compensatory and punitive damages and other  relief.
It  is possible that  additional similar actions  may be filed  and that, in the
course of these actions,  other parties could be  added as defendants. The  Dean
Witter  Parties believe that  they and the Partnership  have strong defenses to,
and they will vigorously contest, the actions. Although the ultimate outcome  of
legal  proceedings  cannot be  predicted with  certainty, it  is the  opinion of
management of the Dean  Witter Parties that the  resolution of the actions  will
not  have a material adverse effect on the financial condition or the results of
operations of any of the Dean Witter Parties or the Partnership.
 
    During the five years preceding the date of this Prospectus, there have been
(other than as described  above) no material  criminal, civil or  administrative
actions  pending, on appeal  or concluded against  DWR, Demeter or  any of their
principals which DWR  or Demeter  believes would  be material  to an  investor's
decision to invest in the Partnership.
 
                            THE MANAGEMENT AGREEMENT
 
    The  Trading  Advisor  has  entered into  a  Management  Agreement  with the
Partnership and the General Partner which provides that the Trading Advisor  has
sole  authority and  responsibility, except  in certain  limited situations, for
directing the investment and reinvestment of the Partnership's assets in futures
interests.
 
TERM
 
    The Management Agreement has a term  of two years, commencing from the  date
of  the Closing.  Thereafter, the Trading  Advisor may  terminate the Management
Agreement, upon 90 days' prior written  notice to the Partnership. In  addition,
the  Trading Advisor may terminate the  Management Agreement upon 30 days' prior
written notice to the Partnership under certain circumstances specified therein.
 
    The Management Agreement may  also be terminated by  the Partnership at  any
month  end without  penalty upon  5 days'  prior written  notice to  the Trading
Advisor, and  at  any  time  upon written  notice  under  certain  circumstances
specified therein.
 
    No  assurance  is given  that the  Partnership  will be  able to  retain the
services of a new trading advisor if the Management Agreement is terminated, or,
if such services  are available,  that they  will be  available on  the same  or
similar  terms as those of the Management Agreement. The compensation payable by
the Partnership to  the Trading Advisor  for its services  under the  Management
Agreement  is described under "Description of Charges to the Partnership--1. The
Trading Advisor."
 
LIABILITY AND INDEMNIFICATION
 
    The Management Agreement sets forth a standard of liability for the  Trading
Advisor  and also provides  for certain indemnities of  the Trading Advisor. See
"Fiduciary Responsibility".
 
OBLIGATIONS TO THE PARTNERSHIP
 
    The Trading Advisor is engaged in  the business of advising investors as  to
the  purchase and sale of  futures interests. During the  term of the Management
Agreement, the  Trading Advisor,  its  principals and  affiliates, are  free  to
advise  other investors  as to  the purchase and  sale of  futures interests, to
manage and  trade such  investors' futures  interests accounts,  to charge  such
investors advisory fees at
 
                                       75
<PAGE>
rates that are different from the rate charged the Partnership, and to trade for
and on behalf of their own proprietary accounts. However, under no circumstances
may  the Trading Advisor or  any of its principals and  affiliates by any act or
omission favor (other  than by  charging different  management and/or  incentive
fees)  any account advised or  managed by the Trading  Advisor or its principals
over the account of the  Partnership in any way  or manner. The Trading  Advisor
will  treat the Partnership in a fiduciary  capacity to the extent recognized by
applicable law, but, subject to that standard, the Trading Advisor or any of its
principals and  affiliates are  free  to advise  and  manage accounts  of  other
investors  and  are free  to trade  on the  basis of  the same  trading systems,
methods, or  strategies  employed  by  the Trading  Advisor  on  behalf  of  the
Partnership, or on the basis of trading systems, methods, or strategies that are
entirely  independent of, or materially different from, those employed on behalf
of the Partnership, and are  free to compete for  the same futures interests  as
the  Partnership, or to  take positions opposite to  the Partnership, where such
actions do  not knowingly  or deliberately  favor any  of such  accounts to  the
Partnership's account.
 
                                  REDEMPTIONS
 
    Persons  who have been Limited Partners for  more than six months may redeem
all or part of their Units, regardless of when such Units were purchased, at any
month-end in  the  manner  described  herein.  Such  Units  may  be  subject  to
redemption  charges as described herein. Persons  who have been Limited Partners
for less than six months may first redeem Units effective as of the last day  of
the sixth month following the Closing in the manner described herein. Such Units
may be subject to redemption charges as described herein.
 
    Units  redeemed on or prior to the last  day of the twelfth month after such
Units were purchased will be subject to  a redemption charge equal to 3% of  the
Net  Asset Value of a Unit on the  date of such redemption. Units redeemed after
the last  day of  the twelfth  month and  on or  prior to  the last  day of  the
eighteenth  month after  which such  Units were purchased  will be  subject to a
redemption charge equal to 2% of  the Net Asset Value of  a Unit on the date  of
such  redemption. Units redeemed after the last  day of the eighteenth month and
on or prior to the  last day of the twenty-fourth  month after which such  Units
were  purchased will be  subject to a redemption  charge equal to  1% of the Net
Asset Value of a Unit on the  date of such redemption. Units redeemed after  the
last  day of the twenty-fourth month after  which such Units were purchased will
not be subject to a redemption charge. The foregoing redemption charges will  be
paid  to  DWR. Notwithstanding  the above,  Units purchased  by an  investor who
purchases $500,000  or  more of  Units  will not  be  subject to  the  foregoing
redemption   charges,  but  will  be  subject   to  the  other  restrictions  on
redemptions. Similarly, investors  who are Limited  Partners in the  Partnership
immediately  prior to the Closing  will not be subject  to the minimum six-month
holding period or the  redemption charges, as described  above, with respect  to
Units purchased during the Offering Period.
 
    In addition, a limited partner in any of the other commodity pools for which
the  General Partner serves  as the general partner  and commodity pool operator
who redeemed all or a portion of his interest in one of such other  partnerships
on  or  after June  30, 1996  and purchases  Units  will not  be subject  to the
foregoing redemption charges or  restrictions under the circumstances  described
below.  The number of Units, expressed as a percentage of Units purchased, which
is not subject to a redemption  charge or such other restrictions is  determined
by  dividing (a) the dollar  amount received upon redeeming  an interest in such
other partnership and used to purchase Units by (b) the total investment in  the
Partnership.  For example, a limited partner  who receives $5,000 upon redeeming
all or  a part  of his  interest in  a commodity  pool operated  by the  General
Partner  and  invests  $10,000 in  the  Partnership  will not  be  subject  to a
redemption charge on 50% of his Units.
 
    Redemptions may only be made in whole Units or in multiples of $1,000 (which
may result in  a redemption of  fractional Units), unless  a Limited Partner  is
redeeming  his entire interest in the Partnership. Redemptions will be effective
as of the last day of the month ending after a Request for Redemption in  proper
form  has been  timely received  by the  General Partner  ("Redemption Date"). A
"Request for Redemption" is an irrevocable  letter in the form specified by  the
General Partner and
 
                                       76
<PAGE>
received  by the General Partner  prior to 5:00 p.m. (New  York time) at least 5
business days prior to the Redemption Date. A form of Request for Redemption  is
annexed  to the Limited Partnership Agreement which is annexed hereto as Exhibit
A. Additional  forms of  Request for  Redemption may  be obtained  by a  written
request  to the General Partner or a local DWR branch office. In addition to the
information  and  reports  described   below  under  "The  Limited   Partnership
Agreement--Reports  to  Limited  Partners,"  the  General  Partner  will provide
Limited Partners  with such  other information  and will  comply with  any  such
procedures  in connection  with redemptions  as in  the future  are specifically
required under SEC rules and policies for commodity pools and similar investment
vehicles.
 
    The "Net Asset Value"  of a Unit  is the amount of  Net Assets allocated  to
capital  accounts represented by Units divided by the aggregate number of Units.
"Net Assets" are defined in the Limited Partnership Agreement to mean the  total
assets  of the  Partnership (including,  but not limited  to, all  cash and cash
equivalents (valued  at cost),  accrued interest  and amortization  of  original
issue discount, and the market value of all open futures interests positions and
other  assets of the Partnership), less the total liabilities of the Partnership
(including, but not limited to, one-half of the brokerage commissions that would
be payable with respect to the closing of each of the Partnership's open futures
interests positions, management fees,  incentive fees, administrative  expenses,
transaction   fees  and  costs,  and   extraordinary  expenses),  determined  in
accordance with generally  accepted accounting  principles consistently  applied
under  the  accrual basis  of accounting.  Unless generally  accepted accounting
principles require otherwise, the market value of a futures interest traded on a
United States exchange shall mean the settlement price on the exchange on  which
the  particular futures interest shall  be traded by the  Partnership on the day
with respect to which  Net Assets are determined,  PROVIDED, HOWEVER, that if  a
futures interest could not have been liquidated on such day due to the operation
of  daily limits or other rules of the exchange upon which that futures interest
shall be traded or otherwise, the  settlement price on the first subsequent  day
on  which the futures  interest could have  been liquidated shall  be the market
value of such  futures interest  for such  day. The  market value  of a  futures
interest  traded on a foreign exchange or  market shall mean its market value as
determined by  the General  Partner on  a basis  consistently applied  for  each
different variety of futures interest.
 
    The  General Partner  shall endeavor to  pay redemptions  within 10 business
days  after  the  Redemption  Date,  and  the  Partnership's  futures  interests
positions  will be  liquidated to  the extent  necessary to  effect redemptions.
Payment is  made by  credit in  the amount  of such  redemption to  the  Limited
Partner's customer account with DWR or by check mailed to the Limited Partner if
such  account is closed. The  right to obtain redemption  is contingent upon (i)
the Partnership having  assets sufficient  to discharge its  liabilities on  the
Redemption Date, and (ii) timely receipt by the General Partner of a Request for
Redemption as described above.
 
    The  terms and conditions  applicable to redemptions  in general, other than
those prohibiting redemptions before the sixth month-end following the  Closing,
and  providing that redemptions may  only be made as of  the end of any calendar
month, will also apply to redemptions effected on "Special Redemption Dates," as
described  under  "The   Limited  Partnership   Agreement--Reports  to   Limited
Partners."
 
    The  liability of  Limited Partners, including  the possible  liability of a
person who has redeemed  Units, for liabilities of  the Partnership which  arose
before   such   redemption   is  described   under   "The   Limited  Partnership
Agreement--Nature of the Partnership."
 
    Federal income tax aspects  of redemptions are  described under the  caption
"Material Federal Income Tax Considerations."
 
                                       77
<PAGE>
                       THE LIMITED PARTNERSHIP AGREEMENT
 
    This  Prospectus contains an  explanation of the  more significant terms and
provisions of  the Amended  and Restated  Limited Partnership  Agreement of  the
Partnership  (the "Limited Partnership  Agreement"), a copy  of which is annexed
hereto as Exhibit A and is incorporated herein by this reference.
 
NATURE OF THE PARTNERSHIP
 
    The Partnership was formed on August 28, 1990 under the Partnership Act. The
fiscal year of the Partnership begins on January 1 of each year and ends on  the
following December 31.
 
    Units  purchased and paid for  pursuant to this offering  will be fully paid
and nonassessable.  Except as  described under  "Restrictions on  Transfers  and
Assignments"  below, Limited Partners may only  withdraw from the Partnership by
redeeming all  of their  Units. The  Partnership may  have a  claim against  its
Limited   Partners  after  redemption  or  receipt  of  distributions  from  the
Partnership for liabilities  of the Partnership  that arose before  the date  of
such  redemption or distribution, but such claim will not exceed the sum of such
Limited Partner's  unredeemed capital  contribution, undistributed  profits,  if
any,  and any redemptions or distributions,  together with interest thereon. The
Partnership will not make a claim  against its Limited Partners with respect  to
amounts distributed to them or amounts received by them upon redemption of Units
unless  the  Net Assets  of the  Partnership are  insufficient to  discharge the
liabilities of the Partnership  that arose before the  payment of such  amounts.
The General Partner will be liable for all obligations of the Partnership to the
extent  that assets  of the  Partnership, including  amounts contributed  by its
Limited Partners and  paid out  in distributions, redemptions,  or otherwise  to
Limited  Partners,  are  insufficient to  discharge  such  obligations. However,
neither the  General  Partner,  DWR,  nor  any  of  their  affiliates  shall  be
personally liable to a Limited Partner (or assignee) for the return or repayment
of all or any portion of the capital or profits of such Limited Partner.
 
MANAGEMENT OF PARTNERSHIP AFFAIRS
 
    The  Limited Partners do not participate  in the management or operations of
the Partnership. Any participation by a Limited Partner in the management of the
Partnership may jeopardize the limited liability of such Limited Partner.  Under
the  Limited Partnership Agreement, responsibility  for managing the Partnership
is vested solely  in the  General Partner. See  "Fiduciary Responsibility."  The
General  Partner may delegate complete trading authority to trading advisors and
has done so (except for the ability  of the General Partner to override  trading
instructions  that violate the Partnership's trading  policies and to the extent
necessary to fund distributions or redemptions, or to pay Partnership  expenses)
pursuant to the Management Agreement with the Trading Advisor. However, pursuant
to  the Management Agreement, the General Partner  has the right to make trading
decisions at any time at which the Trading Advisor becomes incapacitated or some
other emergency arises as  a result of  which the Trading  Advisor is unable  or
unwilling  to  act and  the General  Partner  has not  yet retained  a successor
trading advisor. See "The Trading Advisor" and "The Management Agreement."
 
    On behalf of the Partnership, the General Partner may engage and  compensate
on  behalf  and from  the  funds of  the  Partnership, such  persons,  firms, or
corporations, including any affiliated person or entity, as the General  Partner
in  its  sole judgment  deems advisable  for  the conduct  and operation  of the
business of the Partnership; PROVIDED, HOWEVER, that, except as described in the
Limited Partnership Agreement and in  this Prospectus, the General Partner  will
not engage on behalf of the Partnership any person, firm, or corporation that is
an  affiliate of  the General  Partner to  perform services  for the Partnership
without having made a good faith determination that: (i) the affiliate which  it
proposes  to engage to perform such services  is qualified to do so (considering
the prior experience of the affiliate or the individuals employed thereby), (ii)
the terms and conditions of the agreement pursuant to which such affiliate is to
perform services for the  Partnership are no less  favorable to the  Partnership
than could be obtained from equally-qualified unaffiliated third parties, or are
otherwise  determined by the  General Partner to  be fair and  reasonable to the
Partnership and the Limited Partners, and (iii) the
 
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maximum period covered by the agreement  pursuant to which such affiliate is  to
perform  services  for  the  Partnership  will not  exceed  one  year,  and such
agreement will be terminable without penalty upon 60 days' prior written  notice
by the Partnership.
 
    Other  responsibilities of the General Partner  include, but are not limited
to, the following: determining whether the Partnership will make  distributions;
administering  redemptions of Units; preparing monthly and annual reports to the
Limited Partners; directing  the investment of  the Partnership's assets  (other
than investments in futures interests); executing various documents on behalf of
the  Partnership and its Limited  Partners pursuant to a  power of attorney; and
supervising the liquidation of the  Partnership if an event causing  termination
occurs.  To facilitate the execution of various documents by the General Partner
on behalf  of the  Partnership and  its Limited  Partners, each  of the  Limited
Partners  will  appoint the  General Partner,  with  power of  substitution, his
attorney-in-fact by executing a Subscription Agreement and Power of Attorney.
 
ADDITIONAL OFFERINGS
 
    The General  Partner  may, in  its  discretion, make  additional  public  or
private  offerings of Units, provided, that  the net proceeds to the Partnership
of any such sales shall in no event be  less than the Net Asset Value of a  Unit
at  the  time of  sale. The  Partnership shall  not  pay the  costs of  any such
offering or any selling commissions  relating thereto. No Limited Partner  shall
have  any preemptive, preferential or other  rights with respect to the issuance
of any additional  Units, except as  described in the  applicable prospectus  or
other  disclosure document  with respect to  such offering. There  is no maximum
aggregate amount of contributions which may be received by the Partnership.
 
SHARING OF PROFITS AND LOSSES
 
    Each Partner, including the General Partner, of the Partnership will have  a
capital  account with an initial balance equal to the amount paid for Units, or,
in the case of the General Partner, its capital contribution. The  Partnership's
Net Assets will be determined monthly, and any increase or decrease from the end
of  the preceding month will be added to  or subtracted from the accounts of the
Partners in the ratio that each account bears to all accounts.
 
RESTRICTIONS ON TRANSFERS OR ASSIGNMENTS
 
    Except as set forth below,  the Limited Partnership Agreement provides  that
Units may be transferred or assigned, but no transferee or assignee may become a
substituted  Limited Partner without the written consent of the General Partner,
which consent shall not be unreasonably withheld, nor may a Limited Partner,  an
assignee  or transferee, or the estate of  any beneficiary of a deceased Limited
Partner  withdraw  any  capital  or  profits  from  the  Partnership  except  by
redemption  of Units. See "Redemptions." The  General Partner, without notice to
or consent of the Limited Partners, may withdraw any portion of its interest  in
the  Partnership that is  in excess of  the interest required  under the Limited
Partnership Agreement.
 
    Any transfer or  assignment of  Units permitted by  the Limited  Partnership
Agreement will be effective as of the end of the month in which such transfer or
assignment  is made; PROVIDED, HOWEVER, that  the Partnership need not recognize
any transfer or assignment until it has received at least 30 days' prior written
notice thereof from the Limited Partner, which notice sets forth the address and
social security or taxpayer identification number of the transferee or  assignee
and  the number of Units  transferred or assigned, and  is signed by the Limited
Partner (a Limited Partner's signature must be guaranteed as provided for in the
Limited Partnership Agreement).  No transfers  or assignments of  Units will  be
effective  or recognized by the General Partner if as a result any party to such
transfer or assignment owns fewer than  the minimum number of Units required  to
be  purchased as  described herein  (subject to  certain exceptions  relating to
gifts, death, divorce, or transfers to family members or affiliates contained in
the Limited Partnership Agreement). No transfer or assignment will be  permitted
unless  the General  Partner is satisfied  that (i) such  transfer or assignment
would not be in violation of  the Partnership Act or applicable federal,  state,
or   foreign  securities  laws,  and   (ii)  notwithstanding  such  transfer  or
assignment, the  Partnership will  continue to  be classified  as a  partnership
rather  than  as an  association  taxable as  a  corporation under  the Internal
Revenue Code. No transfer or assignment of
 
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<PAGE>
Units will be  effective or recognized  by the Partnership  if such transfer  or
assignment would result in the termination of the Partnership for federal income
tax  purposes,  and any  attempted transfer  or assignment  in violation  of the
Limited Partnership Agreement will be ineffective. The transfer or assignment of
Units will be  subject to all  applicable securities laws.  The Limited  Partner
will  bear all costs (including any attorneys' and accountants' fees) related to
such transfer or assignment.
 
AMENDMENTS; MEETINGS
 
    The Limited Partnership Agreement may be amended in accordance with, and  to
the extent permissible under, the Partnership Act by an instrument signed by the
General  Partner and by Limited Partners owning  more than 50% of the Units then
outstanding. In addition, the General Partner may make certain amendments to the
Limited Partnership Agreement without  the consent of  the Limited Partners.  No
amendment  of the Limited Partnership Agreement  may, without the consent of all
Partners affected thereby, reduce the capital account of any Partner, modify the
percentage of  profits,  losses,  or  distributions  to  which  any  Partner  is
entitled,  or  change or  alter  the provisions  of  such Agreement  relating to
amendments requiring the consent of all Partners.
 
    Any Limited  Partner  or his  authorized  attorney or  agent,  upon  written
request  addressed  to the  General Partner,  delivered either  in person  or by
certified mail, and payment of  reasonable duplicating and postage costs,  shall
be  entitled to obtain from the General Partner  by mail a list of the names and
addresses of record of  all Limited Partners  and the number  of Units owned  by
each.
 
    Upon  receipt of  a written  request, signed  by Limited  Partners owning at
least 10% of the  Units then owned  by Limited Partners, that  a meeting of  the
Partnership  be called to vote  upon any matter upon  which all Limited Partners
may vote pursuant to the Limited Partnership Agreement, the General Partner,  by
written  notice to  each Limited  Partner of  record sent  by certified  mail or
delivered in person within 15  days after such receipt,  must call a meeting  of
the Partnership. Such meeting must be held at least 30 but not more than 60 days
after  the mailing  of such  notice, and  such notice  must specify  the date, a
reasonable time and place, and the purpose of such meeting.
 
    At any  such meeting,  upon the  affirmative vote  (either in  person or  by
proxy)  of Limited  Partners owning  more than  50% of  the Units  then owned by
Limited Partners, the following actions may be taken without the consent of  the
General  Partner:  (i)  the  Limited Partnership  Agreement  may  be  amended in
accordance with  and  to  the  extent permissible  under  the  Partnership  Act;
PROVIDED, HOWEVER, that without the consent of all Partners affected thereby, no
such  amendment shall change or alter the provisions of this proviso, reduce the
capital account of any Partner, or modify the percentage of profits, losses,  or
distributions  to which any Partner shall  be entitled; (ii) the Partnership may
be dissolved; (iii) the General Partner may be removed and replaced; (iv) a  new
general partner or partners may be elected following the withdrawal, insolvency,
bankruptcy, dissolution, liquidation, or termination of the General Partner; (v)
any  contracts  with  the  General  Partner or  any  of  its  affiliates  may be
terminated without  penalty on  60 days'  prior written  notice to  the  General
Partner  and such affiliate(s); and (vi) the sale of all or substantially all of
the assets of the Partnership may  be approved; PROVIDED, HOWEVER, that no  such
action  shall  adversely  affect  the classification  of  the  Partnership  as a
partnership under United  States federal income  tax laws or  the status of  the
Limited Partners as limited partners under the Partnership Act.
 
INDEMNIFICATION
 
    The  Limited Partnership Agreement  provides for certain  indemnities of the
General Partner and its affiliates. See "Fiduciary Responsibility."
 
REPORTS TO LIMITED PARTNERS
 
    The books and  records of the  Partnership are maintained  at its  principal
office.  The Limited Partners have the right at all times during normal business
hours to have access to and copy  such books and records of the Partnership,  in
person  or by their authorized  attorney or agent, and,  upon request, copies of
such books  and  records will  be  sent to  any  Limited Partner  if  reasonable
reproduction  and distribution costs are  paid by him. Within  30 days after the
close of each calendar month, the General
 
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<PAGE>
Partner shall provide such financial and  other information with respect to  the
Partnership  as the  CFTC and  NFA from  time to  time shall  require in monthly
reports, together  with  information  concerning  any  material  change  in  the
brokerage  commissions and fees payable by  the Partnership to DWR. In addition,
if any of the following  events occurs, notice of such  event will be mailed  to
each  Limited Partner within seven business days of the occurrence of the event:
(i) a decrease in the Net Asset Value of  a Unit as of the close of business  on
any  business day to 50% or less of the  Net Asset Value for such Unit as of the
end of  the immediately  preceding month;  (ii) any  material amendment  to  the
Limited  Partnership  Agreement; (iii)  any change  in  trading advisors  or any
material change in  the management agreement  with a trading  advisor; (iv)  any
change  in  the commodity  broker  or any  material  change in  the compensation
arrangement with a commodity  broker; (v) any change  in the general partner  or
any material change in the compensation arrangement with a general partner; (vi)
any  change in the Partnership's  fiscal year; (vii) any  material change in the
Partnership's  trading  policies  as   specified  in  the  Limited   Partnership
Agreement;  or (viii) cessation of futures interests trading by the Partnership.
In the case of a notice given  in accordance with clause (i) of the  immediately
preceding  sentence: (a) such  notice shall also advise  Limited Partners that a
"Special Redemption Date," on a date specified  in such notice (but in no  event
earlier than 15, nor later than 45, days after the mailing of such notice), will
take  place as  of which  Limited Partners  may redeem  their Units  in the same
manner as described under "Redemptions" for regular Redemption Dates (a  Special
Redemption  Date may take place on a regular Redemption Date); and (b) following
the close  of business  on the  date of  the 50%  decrease giving  rise to  such
notice,  the Partnership shall  liquidate all existing  positions as promptly as
reasonably practicable and shall suspend  all futures interests trading  through
the  Special Redemption  Date. Thereafter,  the General  Partner shall determine
whether  to  reinstitute   futures  interests  trading   or  to  terminate   the
Partnership.  Additionally,  the  General  Partner  distributes  to  the Limited
Partners within 90 days  after the close  of each fiscal  year an annual  report
containing  audited financial  statements (including  a statement  of income and
statement of financial condition)  of the Partnership for  the fiscal year  then
ended,  prepared in accordance with generally accepted accounting principles and
accompanied by a report  of the certified public  accounting firm which  audited
such  financial statements, and such  other information as the  CFTC and the NFA
may from time to time require. Such annual reports provide a detailed  statement
of  any transactions  with the  General Partner or  its affiliates  and of fees,
commissions and any compensation paid or  accrued to the General Partner or  its
affiliates  for the fiscal year completed, showing the amount paid or accrued to
each recipient and  the services performed.  Within 75 days  after the close  of
each  fiscal  year (but  in no  event later  than  March 15  of each  year), the
Partnership will report to  each Limited Partner  tax information necessary  for
the  preparation of  the Limited Partner's  federal income tax  returns. The Net
Asset Value of Units  is determined daily  by the General  Partner and the  most
recent  Net Asset Value calculations will be promptly supplied in writing to any
Limited Partner  after  receipt of  a  request in  writing  to such  effect.  In
addition  to the  above-described information  and reports,  the General Partner
will provide Limited Partners with such  other information and will comply  with
any  such  procedures  in  connection  with redemptions  as  in  the  future are
specifically required under  the Securities  and Exchange  Commission rules  and
policies for commodity pools and similar investment vehicles.
 
    In  addition,  subject  to  limits imposed  under  certain  state guidelines
incorporated in the Limited Partnership Agreement, no increase in (a) any of the
management or incentive fees, or the caps on brokerage commissions,  transaction
fees  and costs,  ordinary administrative  expenses, or  net excess  interest or
compensating balance benefits to DWR, as described under "Description of Charges
to the Partnership," may  take effect until the  first business day following  a
Redemption  Date, PROVIDED that: (1)  notice of such increase  is mailed to each
Limited Partner at least five  business days prior to the  last date on which  a
"Request for Redemption" must be received by the General Partner with respect to
the  applicable Redemption Date;  (ii) such notice  describes the redemption and
voting rights of Limited Partners;  and (iii) none of such  fees or caps may  be
increased until the first business day following the first Redemption Date as of
which a redemption charge is no longer payable.
 
                                       81
<PAGE>
                              PLAN OF DISTRIBUTION
 
    The  Units are  being offered  through DWR  pursuant to  a Selling Agreement
among the Partnership,  the General Partner,  the Trading Advisor,  and DWR,  as
selling  agent.  DWR and  the General  Partner are  "affiliates" of  one another
pursuant to SEC rules under the 1933 Act. The Units are being offered on a "best
efforts" basis  without any  agreement by  DWR to  purchase Units.  The  General
Partner  has registered 50,000 Units  with the SEC, and  the General Partner, in
its discretion,  may  register and  sell  additional Units.  Also,  the  Limited
Partnership  Agreement provides that additional  public and/or private offerings
may be made at the discretion of  the General Partner in the future;  therefore,
there  is no maximum aggregate  amount of funds which  may be contributed to the
Partnership.
    Units will be issued at the Closing, which is currently scheduled to be held
as of October 1, 1997;  provided, however, that the  General Partner may at  its
discretion hold the Closing as of the first business day of any month during the
Offering  Period (the period  commencing the date of  this Prospectus and ending
October 10, 1997). Units are offered for sale at a price per Unit equal to  100%
of  the Net Asset Value of a Unit as of the close of business on the last day of
the month immediately  preceding the date  of the Closing.  The General  Partner
shall have the discretion to terminate the offering of Units at any time.
 
    Funds with respect to a subscription received during the Offering Period and
not immediately rejected by the General Partner will be promptly transferred to,
and held in escrow by, The Chase Manhattan Bank, New York, New York (the "Escrow
Agent"),  as described below under "Subscription Procedure," and invested solely
in the Escrow Agent's  interest-bearing money market  account until the  General
Partner  either rejects such  subscription prior to the  Closing or accepts such
subscription at the Closing. At all times during the Offering Period, and  prior
to the Closing, subscription funds will be in the possession of the Escrow Agent
and at no time will the General Partner handle or take possession of such funds.
 
    Following  the  Closing,  a credit  will  be advanced  to  each subscriber's
customer account  with  DWR  in  the  amount of  any  interest  earned  on  such
subscriber's  funds  while  held  in escrow.  Interest  earned  on subscriptions
deposited into escrow  and thereafter rejected  by the General  Partner will  be
credited  to  the  subscriber's  customer  account  with  DWR.  In  the  event a
subscriber's customer  account  with  DWR  has  been  closed,  any  subscription
returned  and/or  interest earned  will be  paid by  check. During  the Offering
Period, the  General Partner,  DWR, the  Trading Advisor,  and their  respective
principals, directors, officers, employees, and affiliates may subscribe for any
number of Units. Any such subscriptions will be for investment purposes only and
not for resale.
 
    Except  as described below, employees of  DWR will receive from DWR (payable
solely from its own  funds) a gross sales  credit equal to 3%  of the Net  Asset
Value  per Unit as of the  Closing for each Unit sold  by them and issued at the
Closing. Employees of  DWR who  are properly registered  with the  CFTC and  are
members  of the NFA also  will receive, beginning the  eighth month after a Unit
was issued,  from DWR  (payable solely  from its  own funds)  up to  35% of  the
brokerage  commissions that are  attributable to outstanding  Units sold by them
and received by DWR as commodity  broker for the Partnership. Such  compensation
may  only be paid to  employees of DWR who  are registered as associated persons
with the CFTC,  are members of  the NFA in  such capacity, and  have passed  the
Series  3 or Series 31 examination or have been "grandfathered" as an associated
person qualified to  do commodity  brokerage, and  will be  paid by  DWR to  its
employees  in consideration of certain additional services relating to the Units
which such employees have agreed to render on an ongoing basis. Such  additional
services include: (a) inquiring of the General Partner from time to time, at the
request  of  Limited Partners,  as  to the  Net Asset  Value  of the  Units; (b)
inquiring of the General Partner, at the request of Limited Partners,  regarding
the  futures markets  and the activities  of the Partnership;  (c) responding to
questions of Limited Partners  with respect to  the monthly account  statements,
annual  reports,  financial  statements, and  annual  tax  information furnished
periodically to Limited Partners; (d) providing advice to Limited Partners as to
when and  whether  to  redeem  Units; (e)  assisting  Limited  Partners  in  the
redemption  of Units; and (f) providing  such other services as Limited Partners
from time to time may reasonably
 
                                       82
<PAGE>
request. The Selling  Agreement provides that  such continuing compensation  may
only  be paid by  DWR as long  as such services  are provided and  only to those
employees who are properly registered with the CFTC and are members of the  NFA.
A  Limited Partner may telephone, write, or visit such employee at the local DWR
branch office to avail himself of such services.
 
    DWR will not pay to its employees the 3% gross sales credit described  above
with  respect  to  Units  purchased  by a  subscriber  with  the  proceeds  of a
redemption on or after June  30, 1996 of all or  a portion of such  subscriber's
interest in any other commodity pool for which the General Partner serves as the
general  partner and  commodity pool operator.  Such employees  will receive the
gross sales credit  percentage with respect  to roundturn brokerage  commissions
which  are charged to  the Partnership which  are comparable to  the gross sales
credit which  was  received  by  such  employees  with  respect  to  such  other
partnerships.
 
    Redemptions  of Units  at or  prior to  the end  of the  twenty-fourth month
following the Closing are subject to certain redemption charges payable to  DWR.
For example, if (i) all 50,000 Units are sold at the Closing, (ii) the Net Asset
Value per Unit as of December 31, 1996 remained at $2,132.79 per Unit during the
first  twelve months following  the Closing, (iii)  all Units were  subject to a
redemption charge, and  (iv) all  Units were  redeemed during  the first  twelve
months  following the Closing,  then DWR would  receive $2,879,267 in redemption
charges. These redemption charges may be deemed to be underwriting  compensation
to DWR. See "Redemptions."
 
    In  connection  with the  sale  of Units,  DWR  may implement  a  cash sales
incentive and/or promotional program  for its employees who  sell Units. Such  a
program will provide for DWR, and not the Partnership or General Partner, to pay
its  employees bonus compensation based on sales of Units. Any such program will
be approved by the NASD prior to implementation.
 
    The aggregate of all commissions paid  to employees of DWR from the  initial
3%  gross sales credit,  the redemption charges  received by DWR,  and any sales
incentives will not exceed 10% of the proceeds of the sale of Units.
 
    The Units are being  sold by the Partnership  when, as and if  subscriptions
therefor  are accepted  by the General  Partner, subject to  the satisfaction of
certain conditions  set forth  in  the Selling  Agreement  and the  approval  by
counsel  of certain legal  matters. The Partnership has  agreed to indemnify the
Trading Advisor in connection with the offer  and sale of Units with respect  to
any  misleading or untrue statement or alleged misleading or untrue statement of
a material fact  or a  material omission or  alleged omission  unrelated to  the
Trading  Advisor or its  principals. The Partnership also  has agreed to certain
indemnities of  DWR  in  connection  with  the offer  and  sale  of  Units.  See
"Fiduciary Responsibility."
 
                                       83
<PAGE>
                             SUBSCRIPTION PROCEDURE
 
    The minimum subscription for most new subscribers during the Offering Period
is $5,000, except that the minimum subscription is: (a) $2,000 in the case of an
IRA;  or  (b) for  subscribers  effecting Exchanges,  the  lesser of  (i) $5,000
($2,000 in the case of  an IRA), (ii) the proceeds  from the redemption of  five
units  (two units  in the case  of an IRA)  from commodity pools  other than the
Spectrum Series, (iii) the proceeds from the redemption of 500 units (200  units
in  the case of an IRA) from one,  or any combination, of the Spectrum Series of
commodity pools,  or  (iv)  the  proceeds  from  the  redemption  of  all  of  a
subscriber's  units of limited partnership interest  in any other commodity pool
for which  the General  Partner serves  as general  partner and  commodity  pool
operator  (see "Summary  of the  Prospectus--Investment Requirements"). Existing
Limited Partners who desire to make an additional investment in the  Partnership
may subscribe for Units at a closing with a minimum investment of $1,000.
 
    In order to purchase Units, a subscriber must complete, execute, and deliver
an execution copy of a Subscription and Exchange Agreement and Power of Attorney
to  DWR. In  the Subscription  and Exchange Agreement  and Power  of Attorney, a
subscriber (other than  one effecting  an Exchange) will  authorize the  General
Partner  and DWR to  transfer the subscription amount  from his customer account
with DWR  to the  Dean Witter  Portfolio Strategy  Fund L.P.  Escrow Account.  A
subscriber  (other  than  one  effecting  an  Exchange)  whose  Subscription and
Exchange  Agreement  and  Power  of  Attorney  is  received  by  DWR  and  whose
subscription  is not immediately  rejected, must have  the appropriate amount in
his customer account with DWR on the first business day following the date  that
his  Subscription and  Exchange Agreement and  Power of Attorney  is received by
DWR, and DWR will debit the customer account and transfer such funds into escrow
with the Escrow Agent on that date.  In the event that a subscriber (other  than
one effecting an Exchange) does not have a customer account with DWR or does not
have  sufficient funds in his existing customer account with DWR, the subscriber
should make appropriate arrangements with his DWR account executive, if any, and
if none, should contact his local DWR branch office. Payment must not be  mailed
to the General Partner, as any mailed payment will be returned to the subscriber
for proper placement with the DWR branch office where his account is maintained.
Additional  investments in the Partnership for subscribers who already own Units
must be made  by executing a  Subscription and Exchange  Agreement and Power  of
Attorney authorizing the immediate transfer of funds from the customer's account
with  DWR to the  Escrow Agent. In the  case of Exchanges,  the execution of the
Subscription and Exchange  Agreement and  Power of Attorney  will authorize  the
General  Partner to  redeem all  or a portion  of such  subscriber's interest in
another commodity pool for which the  General Partner serves as general  partner
and  commodity pool  operator (subject  to the  terms of  the applicable limited
partnership agreement),  and  use the  proceeds  of such  redemption  (less  any
applicable redemption charges) to purchase Units.
 
    In  the case of a subscription on behalf of an IRA or other employee benefit
plan, merely subscribing for Units does not create a plan. Those considering the
purchase of Units on behalf of an IRA or other employee benefit plan must  first
ensure  that the plan has been properly  established in accordance with the Code
and the regulations thereunder and  administrative rulings thereof and that  the
plan  has been adequately funded.  If an IRA or  other employee benefit plan has
been properly established and adequately funded, the trustee or custodian of the
plan who decides  to or  who is  instructed to do  so may  subscribe for  Units.
Payment  of  the  subscription price  must  be  made by  having  the  trustee or
custodian of the  plan authorize  the General Partner  and DWR  to transfer  the
subscription  amount  to the  Dean Witter  Portfolio  Strategy Fund  L.P. Escrow
Account from the  plan's customer account  with DWR. An  employee benefit  plan,
including  an IRA, should consider the tax  consequences of an investment in the
Partnership. See "Purchase by Employee Benefit Plans--ERISA Considerations."
 
    All Units  subscribed for  upon  DWR's transfer  of  funds from  a  customer
account  following receipt of a subscriber's check will be issued subject to the
collection of  the  funds  represented  by  such check.  In  the  event  that  a
subscriber's  check is returned unpaid, DWR will notify the General Partner, and
the Partnership will cancel the Units  issued to such subscriber represented  by
such  check. Any  losses or profits  sustained by the  Partnership in connection
with the Partnership's business allocable to such cancelled Units will be deemed
a decrease  or  increase  in  Net  Assets  and  allocated  among  the  remaining
 
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Partners.  In the Limited Partnership Agreement,  each Limited Partner agrees to
reimburse the Partnership for any expense  or loss (including any trading  loss)
incurred in connection with the issuance and cancellation of any Units issued to
such Limited Partner.
 
    All  subscriptions  for  Units  are  generally  irrevocable  by subscribers,
provided, however,  that  (i)  a  subscriber may  revoke  his  Subscription  and
Exchange  Agreement and  Power of  Attorney, and  receive a  full refund  of the
subscription amount and any accrued  interest thereon (or revoke the  redemption
of  units in the other  commodity pool in the case  of an Exchange), within five
business days after execution of such Agreement or no later than 3:00 P.M.,  New
York City time, on the date of the Closing, whichever comes first, by delivering
written  notice to  his DWR  account executive; and  (ii) there  may be possible
rescission rights  under  applicable  federal and  state  securities  laws.  The
General  Partner may reject any  subscription, in whole or  in part, in its sole
discretion. See "Plan of Distribution." A specimen form of the Subscription  and
Exchange  Agreement and  Power of  Attorney is  annexed hereto  as Exhibit  B. A
separate execution copy of the Subscription and Exchange Agreement and Power  of
Attorney  accompanies this Prospectus or may be obtained, after delivery of this
Prospectus, from a local  DWR branch office. Limited  Partners will not  receive
certificates  evidencing Units,  but will be  sent confirmations  of purchase in
DWR's customary form.
 
                     PURCHASES BY EMPLOYEE BENEFIT PLANS--
                              ERISA CONSIDERATIONS
 
    The purchase of Units  might or might  not be a  suitable investment for  an
employee  benefit plan. Before proceeding with  such a purchase, the person with
investment discretion  on behalf  of  an employee  benefit plan  must  determine
whether  the purchase of Units is  (a) permitted under the governing instruments
of the plan and (b) appropriate for that particular plan in view of its  overall
investment policy, the composition and diversification of its portfolio, and the
considerations discussed below.
 
    As  used  herein, the  term  "employee benefit  plans"  refers to  plans and
accounts of various types (including their related trusts) which provide for the
accumulation of a portion of an  individual's earnings or compensation, as  well
as  investment income  earned thereon, free  from federal income  tax until such
time as  funds are  distributed  from the  plan.  Such plans  include  corporate
pension  and profit-sharing plans (such  as so-called 401(k) plans), "simplified
employee pension plans," so-called  "Keogh" plans for self-employed  individuals
(including   partners),  and,  for  purposes   of  this  discussion,  individual
retirement accounts ("IRAs"), described in  Section 408 of the Internal  Revenue
Code of 1986, as amended (the "Code").
    Notwithstanding   the  general  requirement  that   most  investors  in  the
Partnership must invest a minimum of  $5,000, a minimum purchase requirement  of
$2,000  has been  set for IRAs.  See "Investment  Requirements." Greater minimum
purchases and special suitability  standards may be  mandated by the  securities
laws  and regulations of  certain states, and each  plan investor should consult
the Subscription and Exchange Agreement and  Power of Attorney to determine  the
applicable investment requirements. See "Subscription Procedure."
    If  the assets of an investing employee benefit plan were to be treated, for
purposes of the  reporting and disclosure  provisions and certain  other of  the
fiduciary responsibility provisions of Title I of the Employee Retirement Income
Security  Act of 1974,  as amended ("ERISA"),  and Section 4975  of the Code, as
including an  undivided  interest  in  each of  the  underlying  assets  of  the
Partnership,  an  investment  in  Units would  in  general  be  an inappropriate
investment  for  the  plan.   A  U.S.  Department   of  Labor  regulation   (the
"Regulation")  defines "plan assets" in  situations where employee benefit plans
purchase equity securities in investment  entities such as the Partnership.  The
Regulation  provides that the assets of an entity will NOT be deemed to be "plan
assets" of an employee benefit plan  which purchases an equity security of  such
an entity if the equity security is a "publicly-offered security," meaning it is
(1)  freely transferable, (2) held by more than 100 investors independent of the
issuer and of each other, and (3)  either (a) registered under Section 12(b)  or
Section  12(g) of  the Securities  Exchange Act of  1934, as  amended (the "1934
Act")  or  (b)   sold  to   the  plan   as  part   of  a   public  offering   of
 
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<PAGE>
such  securities pursuant to an effective  registration statement under the 1933
Act, where the security is then timely registered under Section 12(b) or Section
12(g) of the 1934  Act. The Units  currently meet, and it  is expected that  the
Units will continue to meet, the criteria of the Regulation.
    The  General Partner believes,  based upon the advice  of its legal counsel,
that income earned by  the Partnership will  not constitute "unrelated  business
taxable  income" under  Section 512  of the Code  to employee  benefit plans and
other tax-exempt entities  which purchase Units.  Although the Internal  Revenue
Service  has issued  favorable private letter  rulings to  taxpayers in somewhat
similar circumstances,  other taxpayers  may not  use or  cite such  rulings  as
precedent.  Persons  with investment  discretion on  behalf of  employee benefit
plans who are considering  the purchase of Units  should consult a  professional
tax adviser regarding the application of the foregoing matters to their purchase
of Units.
    Units  may not be purchased  with the assets of  an employee benefit plan if
the General Partner,  DWR, or  the Trading Advisor  or any  of their  respective
affiliates  either: (a) has investment discretion with respect to the investment
of such plan assets;  (b) has authority or  responsibility to give or  regularly
gives  investment advice with respect to such plan assets for a fee and pursuant
to an agreement or understanding that such advice will serve as a primary  basis
for  investment decisions with respect to such  plan assets and that such advice
will be based  on the  particular investment  needs of the  plan; or  (c) is  an
employer maintaining or contributing to such plan.
    Subscribing for Units does not create an IRA or other employee benefit plan.
Those  considering the purchase of  Units on behalf of  an IRA or other employee
benefit plan must first  ensure that the plan  has been properly established  in
accordance  with  the Code  and  the regulations  thereunder  and administrative
rulings thereunder and that the plan has been adequately funded. Then, after all
of the considerations discussed above have been taken into account, the  trustee
or  custodian  of a  plan who  decides  to or  who is  instructed  to do  so may
subscribe for Units, subject to the minimum subscription requirement.
 
    ACCEPTANCE OF SUBSCRIPTIONS  ON BEHALF OF  EMPLOYEE BENEFIT PLANS  IS IN  NO
RESPECT A REPRESENTATION BY THE GENERAL PARTNER, DWR, THE TRADING ADVISOR OR THE
PARTNERSHIP  THAT  THIS INVESTMENT  MEETS ALL  RELEVANT LEGAL  REQUIREMENTS WITH
RESPECT TO INVESTMENTS BY  PLANS GENERALLY OR ANY  PARTICULAR PLAN OR THAT  THIS
INVESTMENT IS APPROPRIATE FOR PLANS GENERALLY OR ANY PARTICULAR PLAN.
 
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<PAGE>
                   MATERIAL FEDERAL INCOME TAX CONSIDERATIONS
 
INTRODUCTION
 
    The  General Partner has  been advised by  counsel, Cadwalader, Wickersham &
Taft, that  in  its  opinion,  the following  summary  correctly  describes  the
material   federal  income  tax  consequences  to  United  States  taxpayers  of
acquiring, owning,  and  disposing of  Units.  The opinions  appearing  in  this
section  are the opinions of Cadwalader,  Wickersham & Taft, except as otherwise
specifically noted  herein. The  following summary  is based  upon the  Internal
Revenue  Code of  1986, as  amended (the  "Code"), rulings  thereon, regulations
promulgated thereunder and existing interpretations thereof, any of which  could
be  changed at  any time  and which  changes could  be retroactive.  The federal
income tax summary and the  state and local income  tax summary which follow  in
general  relate only to the tax implications of an investment in the Partnership
by individuals who  are citizens or  residents of the  United States. Except  as
indicated   below  or   under  "Purchases   by  Employee   Benefit  Plans--ERISA
Considerations," the  summaries  do  not  address the  tax  implications  of  an
investment  in the Partnership by  corporations, partnerships, trusts, and other
non-individuals. Moreover, the summaries  are not intended  as a substitute  for
careful  tax planning,  particularly since  certain of  the tax  consequences of
owning an interest in  the Partnership may  not be the  same for all  taxpayers,
such  as  non-individuals  or foreign  persons,  or  in light  of  an investor's
personal investment circumstances. A complete  discussion of all federal,  state
and local tax aspects of an investment in the Partnership is beyond the scope of
the  following summary,  and prospective  investors must  consult their  own tax
advisors on such matters.
 
PARTNERSHIP STATUS
 
    The General  Partner has  been  advised by  its legal  counsel,  Cadwalader,
Wickersham & Taft, that in its opinion under current federal income tax law, the
Partnership  will  be classified  as  a partnership  and  not as  an association
taxable as a corporation. No ruling has been requested from the Internal Revenue
Service with  respect  to classification  of  the Partnership  and  the  General
Partner does not intend to request such a ruling.
 
    The  opinion of counsel  described above is  based upon the  facts set forth
herein, including  that  (i) the  General  Partner  will maintain  a  net  worth
(exclusive of its interest in the Partnership and any other limited partnership)
equal  to the sum of at least 10%  of the total contributions to the Partnership
and any other limited partnership for which  it acts as general partner (or,  if
the  total contributions to the Partnership  or to any other limited partnership
are less  than  $2,500,000,  of at  least  15%  of total  contributions  to  the
Partnership  and  to any  other limited  partnership  or $250,000,  whichever is
lesser); (ii) the General Partner's interest  in each item of the  Partnership's
income,  gain, loss, deduction, or  credit will be equal to  at least 1% of each
such item; (iii)  the Limited  Partners will  not own,  directly or  indirectly,
individually  or in  the aggregate, more  than 20%  of the stock  of the General
Partner or  of  any affiliate  of  the General  Partner;  and (iv)  a  principal
activity  of the Partnership consists of buying and selling commodities not held
as inventory, or  futures, options and  forward contracts with  respect to  such
commodities, and at least 90% of the Partnership's income consists of gains from
such trading and interest income.
 
    Certain "publicly traded partnerships" are taxed as corporations. While this
treatment  does  not  affect  the  Partnership,  new  legislation  governing the
taxation of limited partnerships may  be enacted at any  time, and may apply  to
the   Partnership  retroactively.  If  a   partnership  were  classified  as  an
association taxable as a corporation, income  or loss of such partnership  would
not  be passed through to its partners, and such partnership would be subject to
tax on its income  without deduction for any  distributions to its partners,  at
the  rates applicable  to corporations.  In addition,  all or  a portion  of any
distributions by  such partnership  to  its partners  could  be taxable  to  the
partners as dividends or capital gains.
 
PARTNERSHIP TAXATION
 
    PARTNERS,  RATHER  THAN PARTNERSHIP,  SUBJECT TO  FEDERAL  INCOME TAX.   The
Partnership, as an entity, will not be subject to federal income tax. Except  as
provided below with respect to certain nonresident
 
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<PAGE>
aliens, each Limited Partner in computing his federal income tax liability for a
taxable year will be required to take into account his distributive share of all
items  of Partnership income, gain, loss,  deduction, and credit for the taxable
year of the Partnership ending within or with the taxable year of such  Partner,
regardless  of  whether such  Partner has  received  any distributions  from the
Partnership. The characterization of an item  of profit or loss will usually  be
determined at the Partnership level.
 
    ORGANIZATION  AND  SYNDICATION EXPENSES.   Neither  the Partnership  nor any
Partner thereof  will be  entitled  to any  deduction for  syndication  expenses
(I.E.,  those amounts paid or incurred  in connection with issuing and marketing
Units).
 
    ALLOCATION OF  PARTNERSHIP  PROFITS AND  LOSSES.   For  federal  income  tax
purposes, a Limited Partner's distributive share of items of Partnership income,
gain,  loss, deduction, and credit will be determined by the Limited Partnership
Agreement, annexed  hereto  as  Exhibit  A,  unless  an  allocation  under  such
Agreement  does not have  "substantial economic effect" or  is not in accordance
with the Partners' interests in the Partnership. The allocations provided by the
Limited Partnership  Agreement  are  described under  "The  Limited  Partnership
Agreements--Allocation   of  Profits  and  Losses."   In  general,  the  Limited
Partnership Agreement allocates items  of ordinary income  and expense pro  rata
among the Partners based upon their respective capital accounts as of the end of
the month in which such items are accrued. Net realized capital gains and losses
are  generally allocated among all Partners  based upon their respective capital
accounts. However, net  realized capital  gain and  loss is  allocated first  to
Partners who have redeemed Units in the Partnership during a taxable year to the
extent  of the difference between the amount  received on the redemption and the
allocation account as  of the date  of redemption attributable  to the  redeemed
Units.  Net realized capital  gains for each  year are allocated  next among all
Partners whose  capital  accounts  are  in excess  of  their  Units'  allocation
accounts  to the  extent of such  excess in  the ratio that  each such Partner's
excess bears to all such Partners' excesses. Net realized capital loss for  each
year  is allocated next among all  Partners whose Units' allocation accounts are
in excess of their capital  accounts to the extent of  such excess in the  ratio
that each such Partner's excess bears to all such Partners' excesses.
 
    These  allocation provisions  are designed  to reconcile  tax allocations to
economic allocations.  However, no  assurance  can be  given that  the  Internal
Revenue  Service will  not challenge  such allocations,  especially in  light of
recently issued final regulations.
 
    If the  allocation provided  by  the Limited  Partnership Agreement  is  not
recognized  by the Internal Revenue Service for federal income tax purposes, the
amount of  income or  loss allocated  to  the Partners  for federal  income  tax
purposes  under the Limited Partnership Agreement may be increased or reduced or
the character of such income or loss may be modified.
 
CASH DISTRIBUTIONS AND REDEMPTIONS
 
    Distributions by the Partnership  and amounts received  upon the partial  or
complete  redemption of a Limited Partner's Units will be taxable to the Limited
Partner to the extent cash distributions by the Partnership or amounts  received
upon redemption by a Limited Partner exceed such Partner's adjusted tax basis in
his  Units. Such excess will be  taxable to him as though  it were a gain from a
sale of the Units. A loss will be recognized upon a redemption of Units only if,
following the redemption of all of  a Limited Partner's Units, such Partner  has
any  tax basis in  his Units remaining.  In such case,  the Limited Partner will
recognize loss  to  the  extent  of such  remaining  basis.  See  "Redemptions."
Generally,  if a Limited Partner is not  a "dealer" with respect to his interest
in the Partnership and he has held his interest in the Partnership for more than
one year, such gain or loss would be long-term capital gain or loss.
 
GAIN OR LOSS ON TRADING ACTIVITY
 
    Because the Partnership  will purchase futures  interests contracts for  its
own  account and not for the account of others, because the Partnership will not
maintain an inventory of futures interests contracts, because substantially  all
of  the  expected  return  of any  combination  of  the  Partnership's commodity
contract  positions  will  not  be  attributable  to  the  time  value  of   the
Partnership's net
 
                                       88
<PAGE>
investment  in such positions, and because  the Partnership will be considered a
"qualified fund"  for  purposes  of its  foreign  currency  commodity  contracts
positions,  for federal income tax purposes  substantially all of the profit and
loss generated by the  Partnership from its trading  activities will be  capital
gain  and  loss,  which  in  turn  may  be  either  short-term,  long-term  or a
combination of both. Gain or loss with  respect to a "Section 1256 contract"  is
generally  treated as short-term  capital gain or  loss to the  extent of 40% of
such gain or loss, and  long-term capital gain or loss  to the extent of 60%  of
such gain or loss. For individual partners, long-term capital gains are taxed at
a  maximum marginal  rate of 28%,  while short-term capital  gains are currently
taxed at a maximum marginal rate of 39.6%. For corporate partners, long-term and
short-term capital gains are taxed at the same rate.
 
    A "Section  1256  contract"  includes  a  "regulated  futures  contract,"  a
"foreign currency contract," a "nonequity option," and a "dealer equity option."
A  "regulated futures  contract" is  a futures  contract which  is traded  on or
subject to the rules of a national securities exchange which is registered  with
the  SEC, a domestic board of trade designated as a contract market by the CFTC,
or any  other  board  of trade,  exchange  or  other market  designated  by  the
Secretary  of  the Treasury  ("a  qualified board  or  exchange"), and  which is
"marked-to-market" to determine the amount of margin which must be deposited  or
may  be withdrawn.  A "foreign currency  contract" is a  contract which requires
delivery of, or the  settlement of which  depends upon the  value of, a  foreign
currency  which  is  a  currency  in which  positions  are  also  traded through
regulated futures contracts, which is traded in the interbank market, and  which
is  entered into at arm's length at a price determined by reference to the price
in the interbank market. (The Secretary  of the Treasury is authorized to  issue
regulations  excluding  certain currency  forward contracts  from mark-to-market
treatment.) A "nonequity option" means an option which is traded on a  qualified
board  or  exchange  and  the  value of  which  is  not  determined  directly or
indirectly by reference to any stock (or group of stocks) or stock index, unless
(i) there is  in effect a  designation by the  CFTC of a  contract market for  a
contract  based on such group of stocks or  stock index or (ii) such option is a
cash-settled option  on  a  stock  index  that the  SEC  has  determined  to  be
"broad-based."  A  "dealer  equity option"  means,  with respect  to  an options
dealer, any listed option which is an equity option, is purchased or granted  by
such  options dealer in the normal course of his activity of dealing in options,
and is listed on the qualified board or exchange on which such options dealer is
registered. Each Section  1256 contract  held at  the end  of the  Partnership's
taxable  year will be treated  as having been sold for  its fair market value on
the last day of such taxable year, and  gain or loss will be taken into  account
for  such year. The Partnership expects that a portion of its trading activities
will be  conducted in  Section  1256 contracts;  however, the  Partnership  also
expects  that a portion of its trading activities will be conducted in contracts
that do  not presently  qualify  as Section  1256 contracts  ("non-Section  1256
contracts").
 
    Gain  or loss with respect to foreign currency forward and futures contracts
that are not traded on U.S. exchanges or on certain foreign exchanges designated
as "qualified boards  or exchanges"  by the Internal  Revenue Service  ("foreign
currency  positions") is  treated as  capital gain  or loss  only if  held by an
electing "qualified  fund."  In  general,  a "qualified  fund"  is  an  electing
partnership  that: (1) has at least 20  unrelated partners (no one of which owns
more than  20% of  the capital  or profits  of the  partnership); (2)  has as  a
principal  activity the buying and selling of options, futures, or forwards with
respect to commodities; and (3) receives at  least 90% of its gross income  from
interest,  dividends, gain from  the sale or disposition  of capital assets held
for the production of interest or  dividends, and income and gain from  futures,
forward,  and option  contracts with  respect to  commodities. All  such foreign
currency positions  held  by a  qualified  fund  are treated  as  "Section  1256
contracts" (I.E., marked-to-market at year end) and gain or loss with respect to
such foreign currency positions is treated as 100% short-term gain or loss. Gain
or  loss  with  respect  to  "regulated  futures  contracts,"  "foreign currency
contracts" and "nonequity options" is generally treated as 60% long-term gain or
loss and 40% short-term gain or loss.  The General Partner has made a  qualified
fund election for the Partnership.
 
    Subject to certain limitations, a Limited Partner, other than a corporation,
estate,  or trust, may elect  to carry back net  Section 1256 contract losses to
each of the three preceding years. Net Section 1256
 
                                       89
<PAGE>
contract losses carried  back to  prior years  may only  be used  to offset  net
Section  1256 contract  gains. Generally,  such losses  are carried  back as 40%
short-term capital losses and 60%  long-term capital losses. Capital assets  not
marked to the market under Section 1256, such as non-currency forward contracts,
are  not subject to the 60/40 tax regime for Section 1256 contracts, and gain or
loss on sale generally will be long-term only if such property has been held for
more than one year.
 
    During taxable years in which little or no profit is generated from  trading
activities, a Limited Partner may still have interest income.
 
    The  Partnership may  engage in spread  and straddle  trading (I.E., holding
offsetting positions  whereby the  risk  of loss  from  holding either  or  both
position(s)  is substantially diminished).  Realized losses with  respect to any
position in a spread or straddle are  taken into account for federal income  tax
purposes only to the extent that the losses exceed unrecognized gain (at the end
of  the  taxable  year)  from  offsetting  positions,  successor  positions,  or
offsetting positions to the successor positions. Thus, spreads and straddles may
not be used to  defer gain from one  taxable year to the  next. For purposes  of
applying the above rules restricting the deductibility of losses with respect to
offsetting  positions, if a Partner takes into account gain or loss with respect
to a position held by  the Partnership, the Partner  will be treated as  holding
the   Partnership's  position,  except  to  the  extent  otherwise  provided  in
regulations. Accordingly,  positions  held  by the  Partnership  may  limit  the
deductibility  of realized losses sustained by a Limited Partner with respect to
positions held for his own account, and positions held by a Limited Partner  for
his own account may limit his ability to deduct realized losses sustained by the
Partnership.  Reporting requirements generally require taxpayers to disclose all
unrecognized gains with  respect to  positions held at  the end  of the  taxable
year.  The above principle, whereby a Limited  Partner may be treated as holding
Partnership positions, may also apply to require a Limited Partner to capitalize
(rather than deduct) interest and carrying charges allocable to property held by
him. A portion of the gain  on a "conversion transaction," including spread  and
straddle  trading, may be  characterized as ordinary  income where substantially
all of  the  expected return  is  attributable to  the  time value  of  the  net
investment in the transaction.
 
    Pursuant to current Proposed and Temporary Treasury Regulations, the holding
period  of any position included in a  straddle begins anew when the straddle is
terminated unless the position was held for more than the long-term capital gain
and loss holding period before the  straddle was established. Further, the  loss
on  any position included in  a straddle will be  treated as a long-term capital
loss if,  at  the  time  the  loss position  was  acquired,  the  taxpayer  held
offsetting  positions with  respect to such  loss position that  would give rise
only to long-term capital loss if such offsetting positions were disposed of  on
the day the loss position was acquired.
 
    Where  the positions of  a straddle are  comprised of both  Section 1256 and
non-Section 1256  contracts,  the  Partnership  will be  subject  to  the  mixed
straddle  rules  of the  Code and  the  regulations promulgated  thereunder. The
appropriate tax  treatment  of  any  gains and  losses  from  trading  in  mixed
straddles   will  depend  on  which  of  the  following  four  alternatives  the
Partnership elects to pursue.  The Partnership may elect  to treat Section  1256
positions as non-Section 1256 positions, and the mixed straddle would be subject
to   the  rules   governing  non-Section  1256   straddles.  Alternatively,  the
Partnership  may  identify  the  positions  of  a  particular  straddle  as   an
"identified  mixed straddle" under Section 1092(b)(2)  of the Code and, thereby,
net the capital gain or loss  attributable to the offsetting positions. The  net
capital gain or loss is treated as 60% long-term and 40% short-term capital gain
or loss if attributable to the Section 1256 positions, or all short-term capital
gain  or loss if attributable to  the non-Section 1256 positions. Alternatively,
the Partnership may place the positions  in a "mixed straddle" account which  is
marked-to-market  daily. Under a special  account cap, not more  than 50% of net
capital gain may be long-term capital gain, and not more than 40% of net capital
loss may be short-term capital loss. If the Partnership does not make any of the
aforementioned three elections, any net loss attributable to either the  Section
1256  or the non-Section 1256 positions will be treated as 60% long-term and 40%
short-term capital loss, while any net gain will be treated as 60% long-term and
40% short-term  capital gain,  or all  short-term capital  gain, depending  upon
whether  the net gain was attributable  to Section 1256 positions or non-Section
1256 positions.
 
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<PAGE>
TAXATION OF LIMITED PARTNERS
 
    LIMITATIONS  ON  DEDUCTIBILITY  OF  PARTNERSHIP  LOSSES.    The  amount   of
Partnership  loss,  including  capital loss,  which  a Limited  Partner  will be
entitled to take into account for federal income tax purposes is limited to  the
lesser  of  the tax  basis  of his  Units  or (in  the  case of  certain Limited
Partners, including individuals and closely-held C corporations) the amounts for
which he  is "at  risk" with  respect to  such interest  as of  the end  of  the
Partnership's taxable year in which such loss occurred.
 
    Generally, a Limited Partner's initial tax basis will be the amount paid for
each  Unit of the Partnership (100%  of the Net Asset Value  of a Unit as of the
close of  business  of the  last  day of  the  month immediately  preceding  the
applicable closing for Units sold at such closing). A Limited Partner's adjusted
tax  basis will be his initial tax  basis reduced by the Limited Partner's share
of Partnership distributions, losses and expenses and increased by his share  of
Partnership  income, including gains. The amount  for which a Limited Partner is
"at risk" with  respect to  his interest in  the Partnership  will generally  be
equal  to his  tax basis for  such interest,  less: (i) any  amounts borrowed in
connection with his acquisition of such interest for which he is not  personally
liable  and for which he  has pledged no property  other than his interest; (ii)
any amounts  borrowed  from persons  who  have  a proprietary  interest  in  the
Partnership;  and (iii)  any amounts borrowed  for which the  Limited Partner is
protected against loss through guarantees or similar arrangements.
 
    Because of the limitations imposed upon the deductibility of capital  losses
referred  to below, a  Limited Partner's share of  the Partnership's net capital
losses, if  any,  will not  materially  reduce his  federal  income tax  on  his
ordinary  income.  In addition,  certain expenses  of  the Partnership  might be
deductible by a Partner  only as so-called  itemized deductions and,  therefore,
will not reduce the federal taxable income of a Partner who does not itemize his
deductions. Furthermore, an individual who is subject to the alternative minimum
tax  for a  taxable year  will not  realize any  tax benefit  from such itemized
deductions.
 
    LIMITATIONS ON DEDUCTIBILITY OF PASSIVE LOSSES.   In general, losses from  a
passive  activity ("passive  losses") are disallowed  to the  extent such losses
exceed income from all passive activities ("passive income"). A passive activity
is defined as  a trade or  business in  which the taxpayer  does not  materially
participate unless otherwise provided in Treasury Regulations.
 
    Proposed  and  Temporary Treasury  Regulations provide  that the  trading of
personal property,  such  as commodities,  will  not  be treated  as  a  passive
activity.  Accordingly,  a  Limited  Partner's distributive  share  of  items of
income, gain, deduction,  or loss from  the Partnership will  not be treated  as
passive  income or loss and Partnership gains allocable to Limited Partners will
not be available to offset passive losses from sources outside the  Partnership.
Partnership  gains allocable to Limited Partners  will, however, be available to
offset losses with respect to "portfolio" investments, such as stocks and bonds.
Moreover, any Partnership losses allocable to Limited Partners will be available
to offset other  income, regardless  of source. Final  Treasury Regulations  may
modify  the  Proposed and  Temporary Regulations,  and  such regulations  may be
retroactive in effect.
 
    LIMITED DEDUCTION  OF  CERTAIN  EXPENSES.   Certain  miscellaneous  itemized
deductions,  such as expenses incurred to maintain property held for investment,
are deductible only  to the extent  that they  exceed 2% of  the adjusted  gross
income  of  an individual,  trust,  or estate.  The  amount of  certain itemized
deductions allowable to individuals is further reduced by an amount equal to the
lesser of  (i) 3%  of the  individual's adjusted  gross income  in excess  of  a
certain  threshold  amount (for  tax  years beginning  in  1995, this  amount is
$114,700 ($57,350 in the case of married individuals filing a separate  return))
and (ii) 80% of such itemized deductions. Based upon the contemplated activities
of  the Partnership, the General  Partner has been advised  by its legal counsel
that, in such  counsel's opinion, expenses  incurred by the  Partnership in  its
futures  interests trading business should  not be subject to  the 2% "floor" or
the 3%  phaseout,  except  to  the extent  that  the  Internal  Revenue  Service
promulgates regulations that so provide.
 
                                       91
<PAGE>
    TAX  ON CAPITAL GAINS AND LOSSES.  For individuals, trusts and estates, "net
capital gains" are currently taxed at a maximum marginal tax rate of 28%,  while
other  income  is taxed  at  a maximum  marginal  tax rate  of  39.6%. Corporate
taxpayers are currently subject  to a maximum  marginal tax rate  of 35% on  all
income.
 
    The  excess  of  capital  losses  over capital  gains  is  deductible  by an
individual against ordinary income on a one-for-one basis, subject to an  annual
limitation  of  $3,000  ($1,500 in  the  case  of married  individuals  filing a
separate return). Excess capital losses may be carried forward.
 
    Net losses from Section 1256 contracts are treated as 60% long-term  capital
loss  and  40%  short-term capital  loss.  Such  losses may,  at  the individual
taxpayer's election, be carried  back to each of  the preceding three years  and
applied against gains from Section 1256 contracts.
 
    ALTERNATIVE  MINIMUM  TAX.   An alternative  minimum tax  may be  imposed on
Limited Partners, depending  on their particular  circumstances. This tax,  with
respect  to taxpayers  other than corporations,  will be assessed  to the extent
that 26%  of  the first  $175,000  ($87,500  for married  individuals  filing  a
separate  return)  of  "alternative minimum  taxable  income" in  excess  of the
exemption amount ($45,000 in the case of married taxpayers filing joint  returns
or a surviving spouse; $33,750 in the case of an unmarried taxpayer who is not a
surviving  spouse;  or $22,500  in the  case  of a  married individual  filing a
separate return or an estate  or trust) plus 28% of  the balance of such  excess
exceeds  the taxpayer's regular federal income tax liability (subject to special
modification) for the year. The alternative minimum tax exemption is  phased-out
for  individual taxpayers with  alternative minimum taxable  income in excess of
$112,500 ($150,000 for  married taxpayers  filing a joint  return and  surviving
spouses;  $75,000 for married individuals  filing separate returns, estates, and
trusts). "Alternative minimum taxable income" is equal to adjusted gross  income
computed  without  deducting normal  net  operating losses,  less  specified net
operating losses,  credits, trust  distributions  and itemized  deductions,  and
increased  by certain  tax preferences. Long-term  capital gains are  taxed at a
maximum 28% rate. However,  the limitation on the  long-term capital gains  rate
does  not give rise to an adjustment or increase in "alternative minimum taxable
income." Therefore, transactions in Section  1256 contracts should not  directly
affect  the application of the  alternative minimum tax. The  extent, if any, to
which the alternative minimum tax will be imposed will depend on the overall tax
situation of each Limited Partner at the end of each such taxable year.
 
    LIMITATION ON DEDUCTIBILITY OF INTEREST ON INVESTMENT
INDEBTEDNESS.  Interest paid  or accrued on  indebtedness properly allocable  to
property  held for investment is investment interest. Such interest is generally
deductible by non-corporate taxpayers only to the extent it does not exceed  net
investment  income. A  Limited Partner's  distributive share  of net Partnership
income and any gain from the disposition of Units will be treated as  investment
income, except that a Limited Partner's net capital gain from the disposition of
Units  is not investment income unless the Limited Partner waives the benefit of
the 28% tax  rate on  such gain.  It is not  clear whether  a Limited  Partner's
distributive share of Partnership net capital gain constitutes investment income
where such gain is taxed at the maximum 28% rate. Interest expense incurred by a
Limited  Partner to acquire his Units generally will be investment interest. Any
investment interest disallowed as a deduction in a taxable year solely by reason
of the limitation above is treated as investment interest paid or accrued in the
succeeding taxable year.
 
    TAXATION  OF  FOREIGN  LIMITED  PARTNERS.    A  Limited  Partner  who  is  a
non-resident alien individual, foreign corporation, foreign partnership, foreign
trust,  or foreign estate (a "Foreign Limited Partner") generally is not subject
to taxation by  the United  States on United  States source  capital gains  from
commodity trading for a taxable year, provided that such Foreign Limited Partner
does  not  have certain  present or  former connections  with the  United States
(e.g., if the Foreign Limited  Partner (in the case  of an individual) does  not
spend  more than 182 days  in the United States during  his taxable year (or, in
certain limited circumstances, a prior taxable year), or if the Foreign  Limited
Partner is not engaged in a
 
                                       92
<PAGE>
trade  or  business within  the United  States  during the  taxable year  or, in
certain limited circumstances, a  prior taxable year to  which income, gain,  or
loss from the Partnership is treated as effectively connected).
 
    Pursuant to a "safe harbor" provision of the Code, a Foreign Limited Partner
would  not be  engaged in a  trade or  business within the  United States solely
because such Foreign Limited Partner is a partner of a partnership which effects
transactions in  the United  States  in commodities  for the  partnership's  own
account,  as long as the partnership is not  a dealer in commodities and as long
as the partnership only trades commodities which are of a kind customarily dealt
in on an  organized commodity  exchange in  transactions of  a kind  customarily
consummated on such an exchange. The Partnership has been advised by its counsel
that,  in  such counsel's  opinion,  the Partnership's  commodities transactions
should satisfy the safe harbor, and  that owning an interest in the  Partnership
should  not,  in such  counsel's  opinion, by  itself,  cause a  Foreign Limited
Partner to be engaged in  a trade or business within  the United States. In  the
event  that future Partnership transactions are  not covered by the safe harbor,
there is a risk that  all of a Foreign  Limited Partner's distributive share  of
income  of the  Partnership would be  treated as effectively  connected with the
conduct of a trade or business in  the United States and taxed at regular  rates
(discussed  previously) and, in the case of a Foreign Limited Partner which is a
foreign corporation, an  additional 30%  branch profits tax  (unless reduced  or
eliminated by treaty).
 
    If  a Foreign Limited  Partner is a  dealer in commodities,  or otherwise is
engaged in a  U.S. trade  or business,  and if income,  gain, or  loss from  the
Partnership is treated as effectively connected with such trade or business, the
Partnership  may be required to withhold tax on income allocable to such Foreign
Limited Partner and  remit to the  Internal Revenue Service  an amount equal  to
39.6% (35% for corporations) of the amount of such effectively connected taxable
income  allocable  to the  Foreign Limited  Partner.  Any amounts  remitted will
constitute a  refundable credit  against the  Foreign Limited  Partner's  United
States federal income tax liability, which can be claimed on the Foreign Limited
Partner's United States federal income tax return.
 
    A  foreign  person generally  is subject  to a  30% withholding  tax (unless
reduced or exempted by treaty) on  certain types of United States source  income
that  are not effectively connected with the conduct of a United States trade or
business, such as certain interest-bearing obligations, the income  attributable
to  which is not exempt from tax. This tax must be withheld by the person having
control over the  payment of such  income. Accordingly, the  Partnership may  be
required  to withhold  tax on  items of  such income  which are  included in the
distributive share (whether or  not actually distributed)  of a Foreign  Limited
Partner.  However,  30%  withholding  is  not  required  in  respect  of certain
interest-bearing obligations, such  as "portfolio  interest" obligations  issued
after  July  18, 1984  (if procedural  requirements are  complied with).  If the
Partnership is required  to withhold  tax on such  income of  a Foreign  Limited
Partner,  the General Partner may pay such tax  out of its own funds and then be
reimbursed out of the proceeds of any distribution to or redemption of Units  by
the Foreign Limited Partner.
 
    The  estate of  a deceased  Foreign Limited Partner  may be  liable for U.S.
estate tax and may be required to obtain an estate tax release from the Internal
Revenue Service in order to transfer the Units of such Foreign Limited Partner.
 
    FOREIGN PERSONS  SHOULD  CONSULT  THEIR OWN  TAX  ADVISERS  BEFORE  DECIDING
WHETHER TO INVEST IN THE PARTNERSHIP.
 
    TAX  ELECTIONS.  The Code provides for  optional adjustments to the basis of
Partnership property upon  distributions of  Partnership property  to a  Partner
(Section  734) and  transfers of Units,  including transfers by  reason of death
(Section 743), provided that  a Partnership election has  been made pursuant  to
Section  754.  As a  result of  the complexities  and added  expense of  the tax
accounting required to implement such an election, the General Partner does  not
presently  intend to make such an  election. Therefore, any benefits which might
be available to the Partners by reason of such an election will be foreclosed.
 
                                       93
<PAGE>
    TAX RETURNS  AND INFORMATION.   The  Partnership will  file its  information
return using the accrual method of accounting. Within 90 days after the close of
the  Partnership's  taxable  year,  the Partnership  will  furnish  each Limited
Partner (and any assignee of the Units of any Limited Partner) copies of (i) the
Partnership's Schedule K-1 indicating  the Limited Partner's distributive  share
of  tax items and (ii) such additional information as is reasonably necessary to
permit the Limited Partners to prepare their own federal and state tax returns.
 
    PARTNERSHIP'S TAX ACCOUNTING.  The Partnership has the calendar year as  its
taxable year.
 
    UNRELATED  BUSINESS TAXABLE INCOME OF EMPLOYEE BENEFIT PLAN LIMITED PARTNERS
AND OTHER TAX-EXEMPT INVESTORS.  Income allocated to a Limited Partner which  is
an employee benefit plan or other tax-exempt entity should not be subject to tax
under  Section 511 of the Code. Such investors should see "Purchases by Employee
Benefit Plans--ERISA Considerations."
 
TAX AUDITS
 
    All Partners are required under the Code to report all the Partnership items
on their own returns consistently with the treatment by the Partnership,  unless
they  file  a  statement  with  the  Internal  Revenue  Service  disclosing  the
inconsistencies. Adjustments in tax liability with respect to Partnership  items
will  be made at the  Partnership level. The General  Partner will represent the
Partnership during  any audit  and  in any  dispute  with the  Internal  Revenue
Service. Each Limited Partner in the Partnership will be informed by the General
Partner  of the  commencement of  an audit of  the Partnership.  In general, the
General Partner may enter into a settlement agreement with the Internal  Revenue
Service  on behalf of, and binding upon, the Limited Partners. However, prior to
settlement, a Limited  Partner may file  a statement with  the Internal  Revenue
Service  stating that the General Partner does  not have the authority to settle
on behalf of such Limited Partner.
 
    The period for assessing  a deficiency against a  partner in a  partnership,
such  as the  Partnership, with respect  to a  partnership item is  the later of
three years after the partnership files its  return or, if the name and  address
of  the partner does  not appear on  the partnership return,  one year after the
Internal Revenue Service is furnished with the name and address of the  partner.
In addition, the General Partner may consent on behalf of the Partnership to the
extension of the period for assessing a deficiency with respect to a Partnership
item.  As a result, a Limited Partner's federal income tax return may be subject
to examination and adjustment by the Internal Revenue Service for a  Partnership
item more than three years after it has been filed.
                              -------------------
 
    All  of the foregoing  statements are based upon  the existing provisions of
the  Code  and   the  regulations  promulgated   thereunder  and  the   existing
administrative  and judicial interpretations  thereof. It is  emphasized that no
assurance can be given that legislative, administrative or judicial changes will
not occur which will modify such statements.
 
    The foregoing statements are  not intended as a  substitute for careful  tax
planning,  particularly since certain of the  federal income tax consequences of
purchasing an interest in the Partnership may not be the same for all taxpayers.
There can be no assurance that the Partnership's tax return will not be  audited
by  the Internal Revenue  Service or that  no adjustments to  the return will be
made as a  result of such  audits. If  an audit results  in adjustment,  Limited
Partners  may  be required  to file  amended  returns and  their returns  may be
audited. Accordingly, prospective purchasers of  an interest in the  Partnership
are urged to consult their tax advisers with specific reference to their own tax
situation  under federal law  and the provisions of  applicable state, local and
foreign laws before subscribing for Units.
 
                                       94
<PAGE>
                       STATE AND LOCAL INCOME TAX ASPECTS
 
    In addition to the federal income tax consequences for individuals described
under  "Material Federal Income  Tax Considerations" above,  the Partnership and
its Limited Partners may be subject to various state and local taxes. A  Limited
Partner's  distributive share of the realized  profits of the Partnership may be
required to be included in determining his reportable income for state or  local
tax  purposes.  Furthermore, state  and local  tax laws  may not  reflect recent
changes made to the federal  income tax law and  hence may be inconsistent  with
the  federal income treatment of gains and losses arising from the Partnership's
transactions  in  Section  1256  contracts.  Accordingly,  prospective   Limited
Partners should consult with their own tax advisers concerning the applicability
of state and local taxes to an investment in the Partnership.
 
    The  General  Partner has  been advised  by  its legal  counsel, Cadwalader,
Wickersham & Taft, that in such counsel's opinion, the Partnership should not be
liable for New York City unincorporated  business tax. Limited Partners who  are
nonresidents  of New York State  will not be liable  for New York State personal
income tax on such Partners' income from the Partnership. No ruling from the New
York State Department of Taxation and  Finance will be requested regarding  such
matters.  Likewise, Limited Partners who are  nonresidents of New York City will
not be liable for New York City  earnings tax on such Partners' income from  the
Partnership.  New York City residents  may be subject to  New York City personal
income tax on such Partners' income from the Partnership.
 
                              POTENTIAL ADVANTAGES
 
    An investment in the Partnership is  speculative and involves a high  degree
of  risk. The General  Partner and DWR believe  that managed futures investments
(such as the  Partnership) provide  investors with the  potential for  long-term
capital  appreciation (with commensurate risk) and  are appropriate only for the
aggressive growth portion  of an  investor's comprehensive  financial plan.  See
"Risk  Factors."  However, such  an  investment offers  the  following potential
advantages.
 
    INVESTMENT DIVERSIFICATION.   An  investor who  is not  prepared to  make  a
significant  investment  or  spend  substantial  time  trading  various  futures
interests nevertheless may participate in these markets through an investment in
the Partnership, thereby obtaining  diversification from investments in  stocks,
bonds,  and real estate. The General Partner  believes, on the basis of the past
experience of the Partnership, that the profit potential of the Partnership does
not depend upon favorable general economic conditions, and that the  Partnership
is  as likely to be profitable during periods of declining stock, bond, and real
estate markets  as  at  any  other time;  conversely,  the  Partnership  may  be
unprofitable  (as  well as  profitable)  during periods  of  generally favorable
economic conditions.
 
                                       95
<PAGE>
    The table below is an empirical example of how different assets can react to
business cycles. In each  case, the asset class  is represented by a  recognized
industry index for that asset.
 
               ANNUAL RETURNS OF VARIOUS ASSET CLASSES OVER TIME
 
<TABLE>
<CAPTION>
                        BONDS (SALOMON                    MANAGED FUTURES
           STOCKS (S&P    CORP. BOND      INT'L STOCKS      (BARCLAY CTA
              500)          INDEX)        (EAFE INDEX)         INDEX)
           -----------  ---------------  --------------  ------------------
<S>        <C>          <C>              <C>             <C>
1981            -5.0%          -1.2%            -1.0%             23.9%
1982            21.6%          42.5%            -0.9%             16.7%
1983            22.5%           6.3%            24.6%             23.8%
1984             6.2%          16.8%             7.9%              8.7%
1985            31.7%          30.1%            56.7%             25.5%
1986            18.6%          19.9%            70.0%              3.8%
1987             5.2%          -0.2%            24.9%             57.3%
1988            16.5%          10.7%            28.6%             21.8%
1989            31.6%          16.2%            10.8%              1.8%
1990            -3.1%           6.8%           -23.2%             21.0%
1991            30.4%          19.9%            12.5%              3.7%
1992             7.6%           9.4%           -11.8%             -0.9%
1993            10.1%          13.2%            32.9%             10.4%
1994             1.3%          -5.8%             8.1%             -0.7%
1995            37.5%          27.2%            11.5%             13.7%
1996            23.0%           1.3%             6.4%              9.2%
</TABLE>
 
    Performance  data for stocks, bonds and  international stocks is provided by
Thomson Investment Software, Rockville, MD. Managed futures performance data  is
represented by the Barclay CTA Index, Fairfield, IA.
 
    THE  PERFORMANCE INFORMATION OF THE ASSET CLASSES ABOVE DOES NOT REFLECT THE
EFFECT OF  FEES IDENTICAL  TO THOSE  TO BE  PAID BY  THE PARTNERSHIP,  INCLUDING
MANAGEMENT  AND INCENTIVE  FEES AND BROKERAGE  COMMISSIONS. NOTE  THAT WHILE THE
BARCLAY CTA INDEX REFLECTS RESULTS NET OF ACTUAL FEES AND EXPENSES, IT  INCLUDES
ACCOUNTS  WITH  TRADING  ADVISORS AND  FEE  STRUCTURES THAT  DIFFER  FROM PUBLIC
MANAGED FUTURES FUNDS (SUCH AS THE PARTNERSHIP). ACCORDINGLY, WHILE THE  BARCLAY
CTA  INDEX IS BELIEVED TO  BE REPRESENTATIVE OF MANAGED  FUTURES IN GENERAL, THE
PERFORMANCE OF  PUBLIC MANAGED  FUTURES  FUNDS AS  A  SUBCLASS MAY  DIFFER.  SEE
"PERFORMANCE   RECORD  OF  THE  PARTNERSHIP"   AND  "THE  TRADING  ADVISOR"  FOR
PERFORMANCE INFORMATION  ABOUT THE  PARTNERSHIP AND  THE TRADING  ADVISOR.  PAST
PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS.
 
                              -------------------
 
    Over  time, managed futures investments have demonstrated that they have the
potential to perform  independently of  traditional markets such  as stocks  and
bonds.  The factors  that influence  the stock and  bond markets  can affect the
futures markets in different ways and to varying degrees.
 
                                       96
<PAGE>
                           MANAGED FUTURES vs. STOCKS
                      12-Month Holding Period Performance
 
EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC
 
<TABLE>
<CAPTION>
            S&P 500 INDEX      BARCLAY CTA INDEX
<S>        <C>               <C>
12/81            -5.125517%              23.897480%
1/82             -2.253534%              19.683202%
2/82             -9.173638%              22.378983%
3/82            -13.103625%              36.806500%
4/82             -7.251420%              34.157410%
5/82            -10.583704%              33.639228%
6/82            -11.393308%              22.577214%
7/82            -13.161905%              14.524697%
8/82              3.339177%              15.913886%
9/82              9.967662%              30.142871%
10/82            16.332015%              29.024509%
11/82            16.220264%              14.974608%
12/82            21.589784%              16.678894%
1/83             27.749348%              35.844207%
2/83             38.293737%              19.893554%
3/83             44.131264%              13.973711%
4/83             48.678425%              13.881853%
5/83             52.526212%              21.234055%
6/83             60.888052%               3.846808%
7/83             58.922011%              17.833218%
8/83             43.894592%              23.210841%
9/83             44.178969%              12.848470%
10/83            27.756789%              18.577646%
11/83            25.422773%              19.500430%
12/83            22.468752%              23.749815%
1/84             17.390491%               6.217633%
2/84             10.734921%              15.665689%
3/84              8.599243%              15.586342%
4/84              1.553879%              13.593474%
5/84             -3.262501%               7.697618%
6/84             -4.845309%               6.155718%
7/84             -3.079551%              24.901797%
8/84              6.087309%               5.363702%
9/84              4.622593%               9.349413%
10/84             6.316885%               2.874141%
11/84             2.984721%               4.151614%
12/84             6.193290%               8.741174%
1/85             15.167370%               9.779353%
2/85             20.776559%              16.019839%
3/85             18.876436%              12.572353%
4/85             17.698275%              13.207573%
5/85             31.911838%              10.184935%
6/85             31.137404%              16.268989%
7/85             32.597438%               9.206413%
8/85             18.394831%              16.779640%
9/85             14.724591%               3.673097%
10/85            19.523826%              15.371491%
11/85            29.192084%              24.492285%
12/85            31.962284%              25.501400%
1/86             23.148477%              24.644901%
2/86             30.693147%              35.922128%
3/86             37.874088%              45.098999%
4/86             36.493966%              38.807726%
5/86             35.848910%              31.602982%
6/86             35.982621%              36.263084%
7/86             28.496090%              23.457034%
8/86             39.117742%              31.902510%
9/86             31.652188%              34.946084%
10/86            33.162537%              21.009713%
11/86            27.557007%              13.045658%
12/86            18.671832%               3.820213%
1/87             33.889195%              12.625618%
2/87             29.650617%              -0.724869%
3/87             26.335686%              -2.839705%
4/87             26.591167%              26.483494%
5/87             21.301508%              29.261181%
6/87             25.237545%              26.926240%
7/87             39.432904%              28.745621%
8/87             34.629348%              20.416534%
9/87             43.585062%              28.423902%
10/87             6.535231%              34.777930%
11/87            -4.492830%              49.661383%
12/87             5.400733%              57.267201%
1/88             -3.049898%              39.634943%
2/88             -2.583792%              39.759854%
3/88             -8.169366%              30.566016%
4/88             -6.223410%               2.735035%
5/88             -6.502231%              13.993096%
6/88             -6.858412%              50.090122%
7/88            -11.555371%              31.516954%
8/88            -17.781463%              34.500200%
9/88            -12.317041%              34.607032%
10/88            14.937279%              36.002338%
11/88            23.200744%              28.513444%
12/88            16.559811%              21.756704%
1/89             19.909231%              25.926113%
2/89             11.762288%              20.711498%
3/89             17.984106%              29.561424%
4/89             22.764094%              31.517324%
5/89             26.669115%              35.102513%
6/89             20.493089%               7.403316%
7/89             31.721401%              14.998908%
8/89             39.099985%               7.712823%
9/89             32.831818%               3.609478%
10/89            26.248318%              -3.913121%
11/89            30.738857%              -4.212748%
12/89            31.509420%               1.799976%
1/90             14.366666%               1.860166%
2/90             18.711190%               6.355393%
3/90             19.058976%               5.708949%
4/90             10.352859%              13.341677%
5/90             16.412698%              -4.289475%
6/90             16.295701%              -4.336726%
7/90              6.382318%               2.828771%
8/90             -5.008323%              16.499963%
9/90             -9.204742%              23.492844%
10/90            -7.440826%              32.872048%
11/90            -3.444159%              29.274243%
12/90            -3.066988%              21.024004%
1/91              8.452888%              13.348264%
2/91             14.781988%              11.526414%
3/91             14.558460%              12.890454%
4/91             17.727597%               5.946837%
5/91             11.921853%              10.296363%
6/91              7.530553%              11.854437%
7/91             12.917855%               2.344374%
8/91             26.954949%              -5.914929%
9/91             31.088984%              -5.969853%
10/91            33.455688%              -7.884852%
11/91            20.398875%              -7.209235%
12/91            30.471155%               3.726179%
1/92             22.605430%               4.129740%
2/92             15.959527%               2.260718%
3/92             10.981753%              -3.711355%
4/92             13.969298%              -2.641590%
5/92              9.809034%              -1.770817%
6/92             13.258533%              -0.067642%
7/92             12.610106%               7.863662%
8/92              7.761922%              12.504615%
9/92             10.941063%               7.762159%
10/92             9.848048%               8.958430%
11/92            18.324330%               9.969115%
12/92             7.596541%              -0.914859%
1/93             10.554899%               1.908139%
2/93             10.664142%              10.362988%
3/93             15.176442%              11.835393%
4/93              9.249887%              16.344886%
5/93             11.646196%              17.927091%
6/93             13.686431%              14.020276%
7/93              8.776747%              13.364422%
8/93             15.338944%               7.369295%
9/93             13.059518%               8.198654%
10/93            14.971969%               7.367104%
11/93            10.074808%               6.263618%
12/93             9.966146%              10.368820%
1/94             12.799762%               8.694010%
2/94              8.234323%               1.572785%
3/94              1.449801%               4.155490%
4/94              5.291810%              -0.860525%
5/94              4.264573%               1.267692%
6/94              1.457850%               2.792023%
7/94              5.223086%              -1.915933%
8/94              5.527492%              -1.915933%
9/94              3.719058%               0.586868%
10/94             3.820544%               1.254614%
11/94             1.091187%               2.801489%
12/94             1.390864%              -0.652849%
1/95              0.607167%               0.898488%
2/95              7.438517%               5.853324%
3/95             15.633932%              10.407829%
4/95             17.458531%              13.712308%
5/95             20.235875%              11.200856%
6/95             26.025921%               7.089137%
7/95             26.025921%               6.883530%
8/95             21.421129%              12.884627%
9/95             29.764941%              10.864073%
10/95            26.466906%              10.742220%
11/95            36.972985%              10.045180%
12/95            37.512779%              13.639259%
1/96                 38.58%                  18.78%
2/96                 34.71%                   9.39%
3/96                 32.10%                   3.40%
4/96                 30.17%                   8.28%
5/96                 28.42%                   5.60%
6/96                 26.03%                   6.60%
7/96                 16.53%                   6.15%
8/96                 18.74%                   2.89%
9/96                 20.33%                   5.32%
10/96                24.07%                  11.12%
11/96                27.88%                  13.77%
12/96                22.98%                   9.16%
</TABLE>
 
Data:  December 1981 - December 1996
     Stocks: S&P 500 Index (Thomson Investment Software, Rockville, MD)
     Managed Futures: Barclay CTA Index (Barclay Trading Group, Fairfield, IA)
 
                                       97
<PAGE>
NOTES TO "MANAGED FUTURES VS. STOCKS" CHART:
 
    Managed futures investments can  serve to diversify  a portfolio and  smooth
overall  portfolio volatility. Modern  Portfolio Theory ("MPT")  is the academic
affirmation of the value of diversification.  MPT was developed in the 1950s  by
Nobel  Laureates  William  Sharpe  and  Harold  Markowitz.  These  two  pioneers
developed a framework  for efficiently diversifying  assets within a  portfolio.
They  suggested that investing in any asset  class with positive returns and low
correlation to other assets improves the overall risk/reward characteristics  of
the entire portfolio.
 
    In  1983, Dr. John H. Lintner of  Harvard University focused on the concepts
of MPT in a ground-breaking study about portfolio diversification. Specifically,
MPT was utilized to evaluate  the addition of a  managed futures component to  a
diversified  portfolio comprised  of 60%  stocks and  40% bonds.  The results of
Lintner's work demonstrated that by including managed futures--a  non-correlated
asset  class--investors  could reduce  portfolio  volatility at  every  level of
return.
 
    In 1996, Dr. Thomas Schneeweis of the University of Massachusetts at Amherst
completed a  study  titled "The  Benefits  of Managed  Futures"  which  furthers
Lintner's  original  premise that  a managed  futures  component can  benefit an
overall portfolio.
 
    The chart above illustrates the performance of managed futures against  that
of stocks from 1981 through 1996, using a recognized market index of each asset.
Stocks  are  represented  by the  S&P  500 Index,  Thomson  Investment Software,
Rockville, MD; managed futures are represented by the Barclay CTA Index, Barclay
Trading Group, Fairfield, IA.  Each bar represents  the asset class  performance
derived  from successive  12-month hypothetical  holding periods  or windows. (A
12-month holding period is defined as  a period of 12 consecutive months,  i.e.,
from  January 1989  to December 1989;  the next  would be from  February 1989 to
January 1990, etc.)
 
    By overlaying  returns,  investors  can  see the  potential  benefits  of  a
diversified  portfolio that includes  both traditional asset  classes as well as
assets that are non-traditional  and non-correlated. There  are many times  when
both  the  managed  futures  and  stock  indices  showed  positive  performance.
Obviously, though, there is  no investment that only  appreciates. There are  19
periods  when managed futures showed  negative returns, while stocks experienced
26 periods  of negative  returns during  the  studied time  frame. While  not  a
guarantee  of  future  results,  this chart  provides  clear  indication  of the
non-correlated aspect of managed futures. This non-correlation enables investors
with managed  futures  to potentially  lower  the overall  volatility  of  their
portfolios.
 
    THE  PERFORMANCE INFORMATION OF THE ASSET CLASSES ABOVE DOES NOT REFLECT THE
EFFECT OF  FEES IDENTICAL  TO THOSE  TO BE  PAID BY  THE PARTNERSHIP,  INCLUDING
MANAGEMENT  AND INCENTIVE  FEES AND BROKERAGE  COMMISSIONS. NOTE  THAT WHILE THE
BARCLAY CTA INDEX REFLECTS RESULTS NET OF ACTUAL FEES AND EXPENSES, IT  INCLUDES
ACCOUNTS  WITH  TRADING  ADVISORS AND  FEE  STRUCTURES THAT  DIFFER  FROM PUBLIC
MANAGED FUTURES FUNDS (SUCH AS THE PARTNERSHIP). ACCORDINGLY, WHILE THE  BARCLAY
CTA  INDEX IS BELIEVED TO  BE REPRESENTATIVE OF MANAGED  FUTURES IN GENERAL, THE
PERFORMANCE OF  PUBLIC MANAGED  FUTURES  FUNDS AS  A  SUBCLASS MAY  DIFFER.  SEE
"PERFORMANCE   RECORD  OF  THE  PARTNERSHIP"   AND  "THE  TRADING  ADVISOR"  FOR
PERFORMANCE INFORMATION  ABOUT THE  PARTNERSHIP AND  THE TRADING  ADVISOR.  PAST
PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS.
                              -------------------
 
    The  Partnership's combined  benefits of  aggressive growth  potential (with
commensurate risk) and diversification can potentially reduce overall  portfolio
volatility  while  maximizing  profits. By  combining  asset  classes, investors
strive to  create a  portfolio mix  that  provides the  potential to  offer  the
greatest  possible  return within  acceptable levels  of volatility.  While past
performance is no guarantee of future results, a managed futures investment such
as the  Partnership may  profit (with  commensurate risk)  in sustained  futures
interests  market moves, regardless of  their direction, a potential enhancement
to an
 
                                       98
<PAGE>
investor's overall portfolio. The Partnership experienced an overall return from
February 1, 1991 to December 31, 1996  of 113.28%, for a compounded annual  rate
of return of 13.66%. See "Performance Record of the Partnership."
 
    The  Trading Advisor's  speculative trading  techniques will  be the primary
factors in the Partnership's  future success or  failure. Investors should  note
that there are always two parties to a futures interests contract, consequently,
for  any  gain  achieved  by  one  party  on  a  futures  interests  contract, a
corresponding loss is  suffered by the  other. Therefore, due  to the nature  of
futures  interests trading,  only 50%  of futures  interests held  by all market
participants can experience gain at any one time, without reference to brokerage
commissions and other costs of trading,  which may reduce or eliminate any  gain
that would otherwise be achieved.
 
    FUTURES  INTERESTS  TRADED.    The  Partnership  normally  trades  a diverse
portfolio of futures  interests, but  may trade a  greater or  lesser number  of
futures  interests, from time to time.  Each Limited Partner will obtain greater
diversification in  futures  interests traded  than  would be  possible  trading
individually,  unless substantially  more than the  minimum investment described
herein were committed to the futures interests markets.
 
    PROFESSIONAL TRADING MANAGEMENT.  Trading decisions for the Partnership  are
made  by the Trading Advisor  retained by the General  Partner. See "The Trading
Advisor." The trading  programs employed  on behalf  of the  Partnership by  the
Trading  Advisor  are not  available for  investments as  small as  the required
minimum investment  in the  Partnership. The  actual performance  record of  the
Partnership  is  set  forth  in  "Performance  Record  of  the  Partnership." No
assurance is  given that  the  Partnership will  in  the future  obtain  results
consistent  with such  past performance or  that the Partnership  will not incur
substantial losses in the future.
 
    LIMITED LIABILITY.   Unlike an  individual who invests  directly in  futures
interests,  an investor  in the  Partnership cannot  be individually  subject to
margin calls and  cannot lose  more than the  amount of  his unredeemed  capital
contribution,  his share  of undistributed profits,  if any,  and, under certain
circumstances, any distributions and amounts  received upon redemption of  Units
and   interest  thereon.  See  "The  Futures,  Options,  and  Forward  Markets,"
"Redemptions,"  and   "The   Limited  Partnership   Agreement--Nature   of   the
Partnership."
 
    INTEREST  INCOME.   Many commodity brokers  permit accounts  above a certain
size to deposit  margin for futures  interests in the  form of  interest-bearing
obligations,  such as U.S.  Treasury Bills, rather than  cash, thus enabling the
account to earn interest on funds  being used for futures interests trading,  or
such  brokers pay interest at U.S. Treasury Bill  rates on a portion of the cash
deposited in the account. The Partnership's assets will be deposited in  futures
interests trading accounts with DWR as commodity broker. Effective on the day of
the  Closing, DWR  will credit the  Partnership at each  month-end with interest
income as if 80%  of the Partnership's  average daily Net  Assets for the  month
were  invested  at  a prevailing  rate  on  U.S. Treasury  Bills.  Generally, an
individual trader would  not receive any  interest on the  funds in his  futures
interests  account  unless  he  committed substantially  more  than  the minimum
investment described  herein.  While  the  Partnership  will  be  credited  with
interest  by DWR  on a portion  of its  assets deposited as  margin as described
above, the form of margin  posted, whether cash or interest-bearing  obligations
(such as U.S. Treasury Bills), does not reduce the risks inherent in the trading
of  futures  interests.  See  "Risk Factors"  and  "Investment  Program,  Use of
Proceeds and Trading Policies."
 
    ADMINISTRATIVE CONVENIENCE.  The Partnership is structured so as to  provide
Limited Partners with numerous services designed to alleviate the administrative
details  involved in engaging  directly in futures  interests trading, including
providing monthly and annual financial reports (showing, among other things, the
Net Asset Value of a Unit, trading profits or losses, and expenses), and all tax
information relating  to  the  Partnership necessary  for  Limited  Partners  to
complete their federal income tax returns.
 
                                       99
<PAGE>
                                 LEGAL MATTERS
 
    Legal  matters in connection with the  Units being offered hereby, including
the discussion of the material federal income tax considerations relating to the
acquisition, ownership and disposition of Units,  have been passed upon for  the
Partnership and the General Partner by Cadwalader, Wickersham & Taft, 100 Maiden
Lane,  New York, New York 10038. Cadwalader, Wickersham & Taft also has acted as
counsel for DWR in connection with the offering of Units. Cadwalader, Wickersham
& Taft may advise  the General Partner with  respect to its responsibilities  as
general partner of, and with respect to matters relating to, the Partnership.
 
                                    EXPERTS
 
    The  financial statements of Dean Witter  Portfolio Strategy Fund L.P. as of
December 31, 1996 and 1995 and for  the three years ended December 31, 1996  and
the  statements of financial  condition of Demeter  Management Corporation as of
December 31, 1996  and 1995  included in this  Prospectus have  been audited  by
Deloitte  & Touche LLP, independent auditors, as indicated in their reports with
respect thereto in this Prospectus, and are included herein in reliance upon the
authority of said firm as experts in accounting and auditing. Deloitte &  Touche
LLP also acts as independent auditors for DWR.
 
                             ADDITIONAL INFORMATION
 
    This  Prospectus does not  contain all of  the information set  forth in the
Registration Statement and the  exhibits relating thereto  that have been  filed
with  the Securities  and Exchange  Commission in  Washington, D.C.  For further
information  pertaining  to  the  Partnership  and  the  Units  offered  hereby,
reference  is hereby made to the  Registration Statement, including the exhibits
filed as part thereof.  The Registration Statement and  exhibits are on file  at
the  offices of the Securities and  Exchange Commission, 450 Fifth Street, N.W.,
Judiciary Plaza, Washington, D.C. 20549, and may be examined, without charge, at
the offices of the SEC, and copies may  be obtained of all or part thereof  from
the SEC upon payment of the prescribed fees.
 
                                      100
<PAGE>
                                    GLOSSARY
 
CERTAIN TERMS AND DEFINITIONS
 
    Knowledge  of  various  terms  and concepts  relating  to  this  offering is
necessary for  a  potential investor  to  determine  whether to  invest  in  the
Partnership.
 
    "Affiliate"  -- An  "affiliate" of  a person  means (i)  any natural person,
partnership,  corporation,  association,  or  other  legal  entity  directly  or
indirectly owning, controlling, or holding with power to vote 10% or more of the
outstanding voting securities of such person; (ii) any partnership, corporation,
association,  or  other legal  entity 10%  or more  of whose  outstanding voting
securities are directly or indirectly owned,  controlled, or held with power  to
vote  by  such  person;  (iii)  any  natural  person,  partnership, corporation,
association,  or  other  legal   entity  directly  or  indirectly   controlling,
controlled  by, or under common control with,  such person; or (iv) any officer,
director or partner of such person.
 
    "Brokerage Commission" -- The fee charged by a broker for executing a  trade
in  a commodity account of a customer. DWR will charge the Partnership brokerage
commissions at a roundturn rate of  80% of DWR's published non-member rates  for
speculative  accounts, subject  to a cap  (aggregated with  transaction fees and
costs) of  13/20 of  1% per  month (a  7.8% annual  rate) of  the  Partnership's
adjusted Net Assets as of the last day of each month.
 
    "Churning"  -- Engaging  in excessive  trading with  respect to  a commodity
account for the purpose of generating brokerage commissions.
 
    "Commodity Trading Advisor" -- Any person who for any consideration  engages
in  the business of  advising others, either  directly or indirectly,  as to the
value or purchase of futures interests.
 
    "Daily Limits" --  Limits imposed by  commodity exchanges on  the amount  of
fluctuation in futures interest prices during a single trading day.
 
    "Forward  Contract" -- A  contractual right to purchase  or sell a specified
quantity of  a commodity  at or  before  a specified  date in  the future  at  a
specified  price. It is distinguished from a  futures contract in that it is not
traded on  an  exchange  and  it  contains  terms  and  conditions  specifically
negotiated by the parties.
 
    "Futures  Contract"  -- Standardized  contract made  on domestic  or foreign
commodity exchanges which calls for the future delivery of a specified  quantity
of a commodity at a specified time and place.
 
    "Limit Order" -- An order to execute a trade at a specified price or better.
As  contrasted with a stop  order, a limit order does  not become a market order
when the limit price is reached.
 
    "Margin" -- Good  faith deposits with  a broker to  assure fulfillment of  a
purchase   or  sale  of   a  commodity  futures   contract  and,  under  certain
circumstances, a commodity option contract.
 
    "Market Order" -- An  order to execute  a trade at  the prevailing price  as
soon as possible.
 
    "Net  Assets" --  The total  assets of  the Partnership  (including, but not
limited to, all cash and cash equivalents (valued at cost), accrued interest and
amortization of  original issue  discount,  and the  market  value of  all  open
futures interests positions and other assets of the Partnership), less the total
liabilities  of the Partnership (including, but  not limited to, one-half of the
brokerage commissions that would be payable with respect to the closing of  each
of   the  Partnership's  open  futures  interests  positions,  management  fees,
incentive  fees,  administrative  expenses,  transaction  fees  and  costs,  and
extraordinary  expenses),  determined  in  accordance  with  generally  accepted
accounting  principles  consistently   applied  under  the   accrual  basis   of
accounting.  Unless generally accepted  accounting principles require otherwise,
the market value of a futures interest traded on a United States exchange  shall
mean  the  settlement price  on  the exchange  on  which the  particular futures
interest shall be traded by the Partnership on the day with respect to which Net
Assets shall be determined, PROVIDED, HOWEVER, that if a futures interest  could
not  have been liquidated  on such day due  to the operation  of daily limits or
other rules of the exchange upon which that futures interest shall be traded  or
otherwise, the settlement price on the first subsequent day on which the futures
interest could have been liquidated
 
                                      101
<PAGE>
shall  be the  market value of  such futures  interest for such  day. The market
value of a futures interest  traded on a foreign  exchange or market shall  mean
its  market value as determined  by the General Partner  on a basis consistently
applied for each different variety of futures interest.
 
    "Net Asset Value Per Unit" --  The Net Assets allocated to capital  accounts
represented  by Units of  Limited Partnership Interest  divided by the aggregate
number of Units of Limited Partnership Interest.
 
    "Option" -- An option  on a futures contract  or a physical commodity  gives
the  buyer of  the option  the right, as  opposed to  the obligation,  to take a
position at a specified price in an underlying futures contract or commodity.
 
    "Organizational and Offering Expenses" -- Costs incurred in the organization
of the Partnership and  the offering of Units,  including legal, accounting  and
auditing  fees,  printing costs,  solicitation  and marketing  costs,  and other
related fees and expenses.
 
    "Pyramiding" -- Using unrealized  profits on existing  positions in a  given
commodity due to favorable price movements as margin specifically to buy or sell
additional positions in the same or related commodity.
 
    "Settlement  Price"  --  The  closing  price  for  futures  contracts  in  a
particular commodity  established by  the clearinghouse  or exchange  after  the
close of each day's trading.
 
    "Speculative  Position Limits" -- Limits established  by the CFTC and United
States commodity  exchanges  on  the  maximum  net  long  or  short  speculative
positions  which  a person  or group  of persons  may hold,  own, or  control in
futures interests.
 
    "Spot Contract" -- A cash market  transaction in which the buyer and  seller
agree  to the immediate purchase  and sale of a  specific commodity lot, usually
with a two-day settlement.
 
    "Stop Order" -- An order given to a  broker to execute a trade in a  futures
interest  when the contract  price reaches the specified  stop order price. Stop
orders become market orders when the stop price is reached.
 
    "Trading Profits" --  Net futures  interests trading  profits (realized  and
unrealized)  earned on  Net Assets allocated  to the  Trading Advisor, including
interest income  credited  to  the  Partnership by  DWR,  decreased  by  monthly
management  fees,  brokerage commissions,  floor  brokerage fees,  "give  up" or
transfer fees,  NFA  fees,  other transaction  fees  and  costs,  administrative
expenses,  and other fees and expenses (excluding incentive fees payable) of the
Partnership; with such Trading Profits and items of decrease determined from the
last date as of which an incentive fee was earned by the Trading Advisor or,  if
no  incentive fee has  been previously earned  by the Trading  Advisor, from the
date the Partnership commenced  trading to the date  as of which such  incentive
fee calculation is made.
 
    "Transaction  Fees  and  Costs"  --  Floor  brokerage  fees,  exchange fees,
clearinghouse fees, NFA fees, "give up"  or transfer fees, any costs  associated
with taking delivery of futures interests, and fees for the execution of forward
contract  transactions, EFP transactions, and the use of DWR's institutional and
overnight execution facilities.
 
    "Unrealized Profit or Loss" -- The profit or loss which could be realized on
an open position if it were closed out at the current settlement price.
 
BLUE SKY GLOSSARY
 
    Prospective  investors  should  be  aware  of  the  following   definitions,
reprinted  verbatim  from the  "Guidelines  for Registration  of  Commodity Pool
Programs" adopted by the  North American Securities Administrators  Association,
Inc.,  as revised  in September, 1993  (the "Guidelines"),  which Guidelines are
applied by certain state securities administrators in reviewing public offerings
of "commodity pools" (such as the  Partnership). For ease of reference, each  of
these definitions is followed by the comparable defined term used in the Limited
Partnership Agreement and this Prospectus, in brackets, as applicable.
 
                                      102
<PAGE>
    "Advisor" -- Any Person who for any consideration engages in the business of
advising  others, either directly  or indirectly, as to  the value, purchase, or
sale of Commodity  Contracts or  commodity options. ["trading  advisor" --  page
A-8]
 
    "Affiliate"  -- An Affiliate  of a Person  means (a) any  Person directly or
indirectly owning, controlling or holding with power to vote 10% or more of  the
outstanding  voting securities  of such  Person; (b) any  Person 10%  or more of
whose outstanding voting securities are directly or indirectly owned, controlled
or held  with  power to  vote,  by such  Person;  (c) any  Person,  directly  or
indirectly,  controlling, controlled by, or under common control of such Person;
(d) any officer, director or partner of such Person; or (e) if such Person is an
officer, director or partner, any Person for which such Person acts in any  such
capacity. ["Affiliate" -- page A-18]
 
    "Capital   Contributions"  --  The  total  investment  in  a  Program  by  a
Participant or  by all  Participants, as  the  case may  be. ["Unit  of  General
Partnership Interest" -- page A-3; "Units" -- page A-5]
 
    "Commodity  Broker" -- Any  Person who engages in  the business of effecting
transactions in Commodity  Contracts for the  account of others  or for his  own
account. ["DWR" -- page A-4; "commodity broker" -- page A-5]
 
    "Commodity  Contract"  -- A  contract or  option  thereon providing  for the
delivery or receipt at a future date of a specified amount and grade of a traded
commodity at a specified price and delivery point. ["futures interests" --  page
A-1]
 
    "Net  Assets" --  The total assets,  less total liabilities,  of the Program
determined on the basis of generally accepted accounting principles. Net  Assets
shall include any unrealized profits or losses on open positions, and any fee or
expense  including Net Asset fees accruing to the Program. ["Net Assets" -- page
A-7]
 
    "Net Worth"  --  The  excess  of total  assets  over  total  liabilities  as
determined  by  generally accepted  accounting  principles. Net  Worth  shall be
determined exclusive of home, home furnishings and automobiles. ["net worth," as
regards subscribers' investment  requirements, is  referenced on  pages 1,  B-4,
B-5,  and  B-6; as  regards  the General  Partner's  net worth  requirement, see
Section 5 of the Limited Partnership Agreement on page A-2]
 
    "Organizational and  Offering  Expenses" --  All  expenses incurred  by  the
Program  in  connection with  and in  preparing a  Program for  registration and
subsequently offering  and distributing  it to  the public,  including, but  not
limited   to,  total  underwriting  and   brokerage  discounts  and  commissions
(including  fees  of  the  underwriter's  attorneys),  expenses  for   printing,
engraving,  mailing,  salaries of  employees  while engaged  in  sales activity,
charges of transfer agents, registrars, trustees, escrow holders,  depositories,
experts,  expenses of  qualification of the  sale of its  Program Interest under
federal and state  law, including  taxes and fees,  accountants' and  attorneys'
fees. ["organizational and offering expenses" -- page A-7]
 
    "Participant"  --  The holder  of  a Program  Interest.  ["General Partner,"
"Limited Partners," "Partners" -- page A-1]
 
    "Person" --  Any natural  Person, partnership,  corporation, association  or
other legal entity. [No comparable term]
 
    "Program"  -- The limited partnership,  joint venture, corporation, trust or
other entity  formed and  operated for  the purpose  of investing  in  Commodity
Contracts. ["Partnership" -- page A-1]
 
    "Pyramiding"  -- A method of using all or  part of an unrealized profit in a
Commodity Contract  position  to provide  margin  for any  additional  Commodity
Contracts  of the  same or  related commodities. [See  trading policy  5 on page
A-11]
 
    "Sponsor" -- Any Person directly or indirectly instrumental in organizing  a
Program  or any  Person who will  manage or  participate in the  management of a
Program, including a Commodity Broker who pays any portion of the Organizational
Expenses of the  Program, and the  general partner(s) and  any other Person  who
regularly  performs or selects the Persons who perform services for the Program.
 
                                      103
<PAGE>
Sponsor does not  include wholly  independent third parties  such as  attorneys,
accountants,  and  underwriters  whose  only  compensation  is  for professional
services rendered  in  connection with  the  offering  of the  units.  The  term
"Sponsor"  shall be deemed to include its Affiliates. ["General Partner," "DWR,"
and their "Affiliates."]
 
    "Valuation Date" -- The date as of  which the Net Assets of the Program  are
determined.  [No comparable term, but for  purposes of redemption, Net Assets of
the Partnership are determined as of the last business day of the month --  page
A-15]
 
                                      104
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
Tothe Limited Partners and the General Partner of
  Dean Witter Portfolio Strategy Fund L.P.:
 
We  have  audited the  accompanying statements  of  financial condition  of Dean
Witter Portfolio  Strategy Fund  L.P. (formerly  Dean Witter  Principal  Secured
Futures  Fund L.P.) (the "Partnership") as of December 31, 1996 and 1995 and the
related statements of operations, changes  in partners' capital, and cash  flows
for  each  of the  three  years in  the period  ended  December 31,  1996. These
financial statements are the responsibility of the Partnership's management. Our
responsibility is to express an opinion  on these financial statements based  on
our audits.
 
We   conducted  our  audits  in  accordance  with  generally  accepted  auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also  includes
assessing  the  accounting principles  used  and significant  estimates  made by
management, as well as evaluating the overall financial statement  presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
In  our  opinion,  such financial  statements  present fairly,  in  all material
respects, the financial position of Dean Witter Portfolio Strategy Fund L.P.  as
of  December 31, 1996  and 1995 and the  results of its  operations and its cash
flows for each  of the  three years  in the period  ended December  31, 1996  in
conformity with generally accepted accounting principles.
 
/S/ DELOITTE & TOUCHE LLP
February 17, 1997
New York, New York
 
                                      F-1
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                       STATEMENTS OF FINANCIAL CONDITION
                                     ASSETS
<TABLE>
<CAPTION>
                                                                                            DECEMBER 31,
                                                                                   ------------------------------
                                                                                                        1995
                                                                                                   --------------
                                                                                        1996             $
                                                                                   --------------
                                                                                         $
 
<S>                                                                                <C>             <C>
Equity in Commodity futures trading accounts:
  Cash...........................................................................      87,847,358      78,404,128
  Net unrealized gain on open contracts..........................................       3,053,880       3,621,113
                                                                                   --------------  --------------
      Total Trading Equity.......................................................      90,901,238      82,025,241
  Interest receivable (DWR)......................................................         300,473         252,974
                                                                                   --------------  --------------
      Total Assets...............................................................      91,201,711      82,278,215
                                                                                   --------------  --------------
                                                                                   --------------  --------------
 
<CAPTION>
 
                                        LIABILITIES AND PARTNERS' CAPITAL
<S>                                                                                <C>             <C>
 
LIABILITIES:
  Incentive fees payable.........................................................       2,587,891         320,038
  Redemptions payable............................................................         688,115         738,931
  Management fee payable.........................................................         303,128         272,903
  Accrued administrative expenses................................................         158,510         279,755
  Accrued brokerage commissions (DWR)............................................         141,879          99,604
  Accrued transaction fees and costs.............................................          10,045           6,603
  Bank fee payable...............................................................        --                21,336
                                                                                   --------------  --------------
      Total Liabilities..........................................................       3,889,568       1,739,170
                                                                                   --------------  --------------
 
PARTNERS' CAPITAL:
  Limited Partners (39,981.953 and 46,435.540 units, respectively)...............      85,273,194      78,914,381
  General Partner (956 units)....................................................       2,038,949       1,624,664
                                                                                   --------------  --------------
      Total Partners' Capital....................................................      87,312,143      80,539,045
                                                                                   --------------  --------------
      Total Liabilities and Partners' Capital....................................      91,201,711      82,278,215
                                                                                   --------------  --------------
                                                                                   --------------  --------------
NET ASSET VALUE PER UNIT.........................................................        2,132.79        1,699.44
                                                                                   --------------  --------------
                                                                                   --------------  --------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-2
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                            STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                            FOR THE YEARS ENDED DECEMBER 31,
                                          -------------------------------------
                                                            1995        1994
                                                         ----------  ----------
                                              1996           $           $
                                          ------------
                                               $
<S>                                       <C>            <C>         <C>
REVENUES
  Trading Profit (Loss):
    Realized............................    26,235,502   23,275,553   2,385,705
    Net change in unrealized............      (567,233)      58,584  (1,311,896)
                                          ------------   ----------  ----------
        Total Trading Results...........    25,668,269   23,334,137   1,073,809
  Interest income (DWR).................     2,994,841    3,189,901   2,560,400
                                          ------------   ----------  ----------
        Total Revenues..................    28,663,110   26,524,038   3,634,209
                                          ------------   ----------  ----------
 
EXPENSES
  Brokerage commissions (DWR)...........     3,416,583    2,700,065   2,712,291
  Management fees.......................     3,281,267    3,332,702   3,650,550
  Incentive fees........................     3,278,840    1,587,389   1,106,885
  Transaction fees and costs............       233,900      231,876     204,327
  Letter of credit fees.................        31,571      106,168      73,791
  Administrative expenses...............        27,000      108,000     108,000
                                          ------------   ----------  ----------
        Total Expenses..................    10,269,161    8,066,200   7,855,844
                                          ------------   ----------  ----------
NET INCOME (LOSS).......................    18,393,949   18,457,838  (4,221,635)
                                          ------------   ----------  ----------
                                          ------------   ----------  ----------
 
Net Income (Loss) Allocation:
  Limited Partners......................    17,979,664   18,129,110  (4,152,982)
  General Partner.......................       414,285      328,728     (68,653)
 
Net Income (Loss) Per Unit:
  Limited Partners......................        433.35       343.86      (77.55)
  General Partner.......................        433.35       343.86      (77.55)
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-3
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                   STATEMENT OF CHANGES IN PARTNERS' CAPITAL
              FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994
 
<TABLE>
<CAPTION>
                                                                        LIMITED        GENERAL        TOTAL
                                                        UNITS OF        PARTNERS       PARTNER    --------------
                                                      PARTNERSHIP    --------------  -----------
                                                        INTEREST                                        $
                                                     --------------        $              $
<S>                                                  <C>             <C>             <C>          <C>
Partners' Capital, December 31, 1993...............      70,372.131      99,403,283    1,448,891     100,852,174
Net Loss...........................................        --            (4,152,982)     (68,653)     (4,221,635)
Redemptions........................................     (13,999.787)    (20,128,939)     (84,302)    (20,213,241)
                                                     --------------  --------------  -----------  --------------
Partners' Capital, December 31, 1994...............      56,372.344      75,121,362    1,295,936      76,417,298
Net Income.........................................        --            18,129,110      328,728      18,457,838
Redemptions........................................      (8,980.804)    (14,336,091)     --          (14,336,091)
                                                     --------------  --------------  -----------  --------------
Partners' Capital, December 31, 1995...............      47,391.540      78,914,381    1,624,664      80,539,045
Net Income.........................................        --            17,979,664      414,285      18,393,949
Redemptions........................................      (6,453.587)    (11,620,851)     --          (11,620,851)
                                                     --------------  --------------  -----------  --------------
Partner's Capital December 31, 1996................      40,937.953      85,273,194    2,038,949      87,312,143
                                                     --------------  --------------  -----------  --------------
                                                     --------------  --------------  -----------  --------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-4
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                         FOR THE YEARS ENDED DECEMBER 31,
                                                       -------------------------------------
                                                          1996         1995         1994
                                                       -----------  -----------  -----------
                                                            $            $            $
<S>                                                    <C>          <C>          <C>
 
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)....................................   18,393,949   18,457,838   (4,221,635)
Noncash item included in net income (loss):
  Net change in unrealized...........................      567,233      (58,584)   1,311,896
(Increase) decrease in operating assets:
  Interest receivable (DWR)..........................      (47,499)      22,726     (121,436)
Increase (decrease) in operating liabilities:
  Incentive fees payable.............................    2,267,853      320,038      --
  Accrued management fees............................       30,225       13,116      (81,222)
  Accrued administrative expenses....................     (121,245)      68,263       (2,097)
  Accrued brokerage commissions (DWR)................       42,275          848       27,880
  Accrued transaction fees and costs.................        3,442          165        1,814
  Bank fee payable...................................      (21,336)      21,336      --
                                                       -----------  -----------  -----------
Net cash provided by (used for) operating
 activities..........................................    1,114,897   18,845,746   (3,084,800)
                                                       -----------  -----------  -----------
CASH FLOWS FROM FINANCING ACTIVITIES
Increase (decrease) in redemptions payable...........      (50,816)    (520,160)     149,625
Redemptions of units.................................  (11,620,851) (14,336,091) (20,213,241)
                                                       -----------  -----------  -----------
Net cash used for financing activities...............  (11,671,667) (14,856,251) (20,063,616)
                                                       -----------  -----------  -----------
Net increase (decrease) in cash......................    9,443,230    3,989,495  (23,148,416)
Balance at beginning of period.......................   78,404,128   74,414,633   97,563,049
                                                       -----------  -----------  -----------
Balance at end of period.............................   87,847,358   78,404,128   74,414,633
                                                       -----------  -----------  -----------
                                                       -----------  -----------  -----------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-5
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                         NOTES TO FINANCIAL STATEMENTS
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    ORGANIZATION--Dean  Witter Portfolio Strategy Fund L.P., formerly named Dean
Witter Principal Secured Futures  Fund L.P.) (the  "Partnership"), is a  limited
partnership  organized to engage in the speculative trading of commodity futures
contracts,  commodity  option  contracts   and  forward  contracts  on   foreign
currencies.  The  general  partner  for the  Partnership  is  Demeter Management
Corporation ("Demeter").  The  commodity broker  is  Dean Witter  Reynolds  Inc.
("DWR").  Both DWR  and Demeter  are wholly-owned  subsidiaries of  Dean Witter,
Discover &  Co. ("DWD").  Demeter has  retained John  W. Henry  & Company,  Inc.
("JWH") as the trading advisor of the Partnership.
 
    Demeter  is required to maintain a 1%  minimum interest in the equity of the
Partnership and income (losses) are shared by Demeter and Limited Partners based
upon their proportional ownership interests.
 
    On July 31, 1996,  with the Partnership's Net  Asset Value above $1,000  per
Unit,  the letter  of credit  arrangement which  assured investors  who redeemed
their Units  on July  31, 1996  a minimum  Net Asset  Value of  $1,000 per  Unit
expired. On August 1, 1996, the Partnership was renamed and continued trading in
a  non-guaranteed format.  Both the reduction  of interest income  of 1.125% per
annum for the letter of credit fee paid  by DWR and the letter of credit fee  of
1% of new appreciation were eliminated effective August 1, 1996.
 
    BASIS  OF ACCOUNTING--The preparation of  financial statements in conformity
with generally  accepted  accounting  principles  requires  management  to  make
estimates  and assumptions  that affect  the reported  amounts in  the financial
statements.
 
    REVENUE RECOGNITION--Commodity futures  contracts and  forward contracts  on
foreign  currencies are open commitments until  settlement date. They are valued
at market and the resulting unrealized gains and losses are reflected in income.
Prior to August 1, 1996, DWR paid the Partnership interest income monthly  based
upon  80% of the  average daily Net Assets  for the month  that was allocated to
JWH's KT  Diversified Program,  Financial  and Metals  Portfolio,  International
Foreign Exchange Program, and The World Financial Perspective at a rate equal to
the average yield on 13-week U.S. Treasury Bills issued during such month less a
monthly  letter of credit fee paid by  DWR. DWR paid Citibank, N.A. ("Citibank")
on the twentieth day  of each month  a Letter of  Credit fee of  3/32 of 1%  per
month  of the  amount available  to be  drawn under  the Letter  of Credit. Such
amounts for the period ended July 31, 1996 and the years ended December 31, 1995
and 1994 were $306,187, $586,638, and $721,257, respectively. Additionally,  DWR
paid  the  Partnership  interest income  based  upon 100%  of  the Partnership's
average daily Net  Assets which  were allocated to  JWH's InterRate-TM-  trading
program  for the  month at  a rate equal  to the  average yield  on 13-week U.S.
Treasury Bills issued during such month. For purposes of such interest payments,
Net Assets did not include monies  due the Partnership on forward contracts  and
other commodity interests, but not actually received.
 
    Effective  August 1, 1996, DWR pays  the Partnership monthly interest income
based upon 80% of the average daily Net Assets for the month at a rate equal  to
the  average yield on 13-week  U.S. Treasury Bills issued  during the month. For
purposes of such  interest payments, Net  Assets do not  include monies due  the
Partnership on forward contracts and other commodity interests, but not actually
received.
 
    NET INCOME (LOSS) PER UNIT--Net income (loss) per Unit is computed using the
weighted average number of Units outstanding during the period.
 
    EQUITY  IN  COMMODITY  FUTURES  TRADING  ACCOUNTS--The  Partnership's  asset
"Equity in Commodity futures  trading accounts" consists of  cash on deposit  at
DWR to be used as margin for trading and the
 
                                      F-6
<PAGE>
net  asset or liability related to unrealized gains or losses on open contracts.
The asset or  liability related  to the unrealized  gains or  losses on  forward
contracts  is presented  as a  net amount because  the Partnership  has a master
netting agreement with DWR.
    BROKERAGE  COMMISSIONS   AND  RELATED   TRANSACTION  FEES   AND   COSTS--The
Partnership  accrues brokerage commissions on a  half-turn basis at 80% of DWR's
published non-member  rates.  Transaction  fees  and  costs  are  accrued  on  a
half-turn  basis. Prior to September 1,  1996, brokerage commissions were capped
at 3/4 of 1% per month of the Partnership's Net Assets as defined in the Limited
Partnership  Agreement.   Additionally,   each   trading   program's   brokerage
commissions  were capped  at 1% per  month of  the Net Assets  allocated to such
trading program.
 
    Effective September  1, 1996,  brokerage  commissions and  transaction  fees
chargeable  to  the Partnership  were capped  at 13/20  of 1%  per month  of the
Partnership's month-end  Net  Assets  (as defined  in  the  Limited  Partnership
Agreement), with such cap applied on a per trading program basis.
 
    OPERATING  EXPENSES--The Partnership bears all operating expenses related to
its trading activities, to a maximum of 1/4 of 1% annually of the  Partnership's
average   month-end   Net   Assets.  These   include   filing   fees,  clerical,
administrative, auditing, accounting,  mailing, printing,  and other  incidental
operating  expenses  as  permitted  by  the  Limited  Partnership  Agreement. In
addition, the  Partnership incurs  a monthly  management fee  and may  incur  an
incentive  fee. Prior  to August  1, 1996,  pursuant to  a Letter  of Credit and
Reimbursement Agreement with JWH and Citibank, the Partnership paid to  Citibank
a  quarterly  Letter  of  Credit  fee equal  to  1%  of  the  Partnership's "New
Appreciation," as defined in the  Letter of Credit and Reimbursement  Agreement,
of the Partnership's Net Assets as of the end of each calendar quarter. Such fee
was  accrued in each month in which "New Appreciation" occurred. In those months
in which "New  Appreciation" was negative,  prior accruals, if  any, during  the
quarter  were reduced.  Demeter and/or  DWR bear  all other  operating expenses,
including expenses which would be incurred  if the Partnership were required  to
register as an investment company.
 
    REDEMPTIONS--Limited  Partners are able to redeem some or all of their Units
at 100% of the Net Asset Value per Unit at the last day of any month that is  at
least  six months  after the closing  at which  a client first  became a limited
partner, upon five business days' advance notice by redemption form to Demeter.
 
    DISTRIBUTIONS--Distributions, other than on  redemptions of Units, are  made
on  a pro-rata basis  at the sole  discretion of Demeter.  No distributions have
been made to date.
 
    INCOME  TAXES--No  provision  for  income   taxes  has  been  made  in   the
accompanying  financial statements, as partners are individually responsible for
reporting income or loss based upon their respective share of the  Partnership's
revenues and expenses for income tax purposes.
 
    DISSOLUTION  OF THE PARTNERSHIP--The Partnership  will terminate on December
31, 2025 or at an  earlier date if certain conditions  set forth in the  Limited
Partnership Agreement occur.
 
2.  RELATED PARTY TRANSACTIONS
 
    The  Partnership's cash is on deposit with DWR in commodity trading accounts
to meet  margin requirements  as needed.  DWR pays  interest on  these funds  as
described in Note 1. Under its Customer Agreement with DWR, the Partnership pays
DWR brokerage commissions as described in Note 1.
 
3.  TRADING ADVISOR
 
    Compensation  to JWH consists  of a management  fee and an  incentive fee as
follows:
 
    MANAGEMENT FEE--The Partnership pays a  monthly management fee equal to  1/3
of  1% per  month of the  Partnership's adjusted  Net Assets, as  defined in the
Limited Partnership Agreement, as of the last day of each month.
 
    INCENTIVE FEE--The Partnership pays a  quarterly incentive fee to JWH  equal
to  15% of  the Partnership's  "Trading Profits,"  as defined  in the Management
Agreement, as of the end of each calendar quarter. Such incentive fee is accrued
in each  month in  which "Trading  Profits"  occurs. In  those months  in  which
"Trading  Profits" are negative, previous accruals, if any, during the incentive
 
                                      F-7
<PAGE>
period will be reduced. In those instances in which a Limited Partner redeems an
investment, the incentive  fee (if earned  through a redemption  date) is to  be
paid to JWH on those redemptions in the month of such redemptions.
 
4.  FINANCIAL INSTRUMENTS
 
    The  Partnership  trades futures  and forward  contracts in  interest rates,
stock indices, commodities, currencies, petroleum, and precious metals.  Futures
and  forwards represent  contracts for  delayed delivery  of an  instrument at a
specified date  and  price. Risk  arises  from changes  in  the value  of  these
contracts  and the  potential inability of  counterparties to  perform under the
terms of  the contracts.  There  are numerous  factors which  may  significantly
influence   the  market  value  of  these  contracts,  including  interest  rate
volatility. At December 31, 1996 and 1995, open contracts were:
 
<TABLE>
<CAPTION>
                                                                                    CONTRACT OR NOTIONAL AMOUNT
                                                                                   ------------------------------
                                                                                        1996            1995
                                                                                   --------------  --------------
                                                                                         $               $
<S>                                                                                <C>             <C>
EXCHANGE-TRADED CONTRACTS:
Financial Futures:
  Commitments to Purchase........................................................      65,197,000     107,229,000
  Commitments to Sell............................................................      70,325,000      20,701,000
 
Commodity Futures:
  Commitments to Purchase........................................................       5,005,000      14,171,000
  Commitments to Sell............................................................      30,977,000      10,132,000
 
Foreign Futures:
  Commitments to Purchase........................................................      42,509,000     125,880,000
  Commitments to Sell............................................................      67,755,000      67,755,000
 
OFF-EXCHANGE-TRADED FORWARD CURRENCY CONTRACTS
  Commitments to Purchase........................................................      89,146,000      43,693,000
  Commitments to Sell............................................................      38,531,000      82,529,000
</TABLE>
 
    A portion  of the  amounts indicated  as off-balance-sheet  risk in  forward
foreign  currency contracts is due to offsetting forward commitments to purchase
and to sell the same currency on the same date in the future. These  commitments
are  economically offsetting, but are not offset in the forward market until the
settlement date.
 
    The net unrealized gains  on open contracts are  reported as a component  of
"Equity  in Commodity futures  trading accounts" on  the Statements of Financial
Condition and totaled $3,053,880 and $3,621,113  at December 31, 1996 and  1995,
respectively.
 
    Of  the $3,053,880  net unrealized  gain on  open contracts  at December 31,
1996, $3,465,469  related to  exchange-traded futures  contracts and  $(411,589)
related to off-exchange-traded forward currency contracts. Of the $3,621,113 net
unrealized  gain on open  contracts at December 31,  1995, $3,632,875 related to
exchange-traded futures contracts and  $(11,762) related to  off-exchange-traded
forward currency contracts.
 
    Exchange-traded  futures contracts held  by the Partnership  at December 31,
1996 and  1995 mature  through December  1997 and  December 1996,  respectively.
Off-exchange-traded  forward  currency  contracts  held  by  the  Partnership at
December 31,  1996  and  1995  mature  through  March  1997  and  January  1996,
respectively.   The  contract   amounts  in   the  above   table  represent  the
Partnership's extent  of  involvement  in  the  particular  class  of  financial
instrument, but not the credit risk associated with counterparty nonperformance.
The  credit risk  associated with  these instruments  is limited  to the amounts
reflected in the Partnership's Statements of Financial Condition.
 
    The Partnership  also  has credit  risk  because  DWR acts  as  the  futures
commission  merchant  or the  sole  counterparty, with  respect  to most  of the
Partnership's assets. Exchange-traded futures contracts are marked to market  on
a  daily basis, with variations  in value settled on a  daily basis. DWR, as the
futures commission merchant for all of the Partnership's exchange-traded futures
contracts, is required
 
                                      F-8
<PAGE>
pursuant  to  regulations  of  the  Commodity  Futures  Trading  Commission,  to
segregate  from  its own  assets,  and for  the  sole benefit  of  its commodity
customers, all  funds  held  by  DWR with  respect  to  exchange-traded  futures
contracts,  including an  amount equal  to the net  unrealized gain  on all open
futures contracts, which funds totaled  $91,312,827 and $82,037,003 at  December
31,   1996   and  1995,   respectively.  With   respect  to   the  Partnership's
off-exchange-traded forward currency contracts,  there are no daily  settlements
of  variations in value nor is there any requirement that an amount equal to the
net unrealized gain  on open forward  contracts be segregated.  With respect  to
those off-exchange-traded forward currency contracts, the Partnership is at risk
to the ability of DWR, the counterparty on all such contracts, to perform.
 
    For  the years ended December  31, 1996 and 1995,  the average fair value of
financial instruments held for trading purposes was as follows:
 
<TABLE>
<CAPTION>
                                                                                               1996
<S>                                                                             <C>               <C>
                                                                                     ASSETS         LIABILITIES
                                                                                ----------------  ----------------
                                                                                       $                 $
EXCHANGE-TRADED CONTRACTS:
  Financial Futures...........................................................       102,149,000        96,292,000
  Commodity Futures...........................................................        13,649,000        28,690,000
  Foreign Futures.............................................................       116,142,000        42,572,000
OFF-EXCHANGE-TRADED FORWARD CURRENCY CONTRACTS................................       113,353,000       134,819,000
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                               1995
<S>                                                                             <C>               <C>
                                                                                     ASSETS         LIABILITIES
                                                                                ----------------  ----------------
                                                                                       $                 $
EXCHANGE-TRADED CONTRACTS:
  Financial Futures...........................................................        80,726,000        48,675,000
  Commodity Futures...........................................................         6,335,000        23,478,000
  Foreign Futures.............................................................        63,976,000        29,814,000
OFF-EXCHANGE-TRADED FORWARD CURRENCY CONTRACTS................................        50,560,000        99,829,000
</TABLE>
 
5.  LEGAL MATTERS
 
    On September 6, 10, and  20, 1996, and on  March 13, 1997 similar  purported
class  actions were  filed in  the Superior  Court of  the State  of California,
County of  Los Angeles,  on behalf  of all  purchasers of  interests in  limited
partnership  commodity pools sold by DWR. Named defendants include DWR, Demeter,
Dean Witter Futures and Currency Management Inc., DWD (all such parties referred
to hereafter as the "Dean Witter Parties"), the Partnership (under its  original
name), certain other limited partnership commodity pools of which Demeter is the
general  partner, and certain  trading advisors (including  JWH) to those pools.
Similar purported class actions were also filed on September 18 and 20, 1996  in
the Supreme Court of the State of New York, New York County, and on November 14,
1996  in the Superior Court of the State of Delaware, New Castle County, against
the Dean Witter Parties and certain  trading advisors (including JWH) on  behalf
of  all purchasers of interests in  various limited partnership commodity pools,
including the  Partnership, sold  by DWR.  Generally, these  complaints  allege,
among   other   things,   that   the   defendants   committed   fraud,   deceit,
misrepresentation, breach  of fiduciary  duty,  fraudulent and  unfair  business
practices,  unjust enrichment,  and conversion in  connection with  the sale and
operation of the  various limited  partnership commodity  pools. The  complaints
seek  unspecified amounts of compensatory and punitive damages and other relief.
It is possible that  additional similar actions  may be filed  and that, in  the
course  of these actions, other  parties could be added  as defendants. The Dean
Witter Parties believe that  they and the Partnership  have strong defenses  to,
and  they will vigorously contest, the actions. Although the ultimate outcome of
legal proceedings  cannot be  predicted with  certainty, it  is the  opinion  of
management  of the Dean Witter  Parties that the resolution  of the actions will
not have a material adverse effect on the financial condition or the results  of
operations of any of the Dean Witter Parties or the Partnership.
 
                                      F-9
<PAGE>
6.  SUBSEQUENT EVENTS
 
    The  General Partner has determined to reopen the Partnership for additional
investment and will register with the Securities and Exchange Commission  50,000
Units to be offered to investors for a limited time in a public offering.
 
    If  at the  Closing an  incentive fee  has accrued  on trading  profits, the
accrued incentive fee will become due and be paid to the Trading Advisor.
 
    Units redeemed on or prior to the  last day of the twelfth month after  such
Units  were purchased will be subject to a  redemption charge equal to 3% of the
Net Asset Value of a Unit on  the date of such redemption. Units redeemed  after
the  last day  of the  twelfth month  and on  or prior  to the  last day  of the
eighteenth month after  which such  Units were purchased  will be  subject to  a
redemption  charge equal to 2% of  the Net Asset Value of  a Unit on the date of
such redemption. Units redeemed after the  last day of the eighteenth month  and
on  or prior to the  last day of the twenty-fourth  month after which such Units
were purchased will be  subject to a  redemption charge equal to  1% of the  Net
Asset  Value of a Unit on the date  of such redemption. Units redeemed after the
last day of the twenty-fourth month  after which such Units were purchased  will
not be subject to a redemption charge.
 
                                      F-10
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
Tothe Board of Directors of
  Demeter Management Corporation:
 
We  have audited the  accompanying statements of  financial condition of Demeter
Management Corporation (a  wholly-owned subsidiary  of Dean  Witter, Discover  &
Co.)  (the "Company")  as of  December 31,  1996 and  1995. These  statements of
financial condition  are the  responsibility of  the Company's  management.  Our
responsibility  is to express an opinion  on these financial statements based on
our audits.
 
We  conducted  our  audits  in  accordance  with  generally  accepted   auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
In our opinion, such  statements of financial condition  present fairly, in  all
material  respects, the financial position  of Demeter Management Corporation as
of December 31, 1996 and 1995  in conformity with generally accepted  accounting
principles.
 
/S/ DELOITTE & TOUCHE LLP
February 17, 1997
New York, New York
 
                                      F-11
<PAGE>
                         DEMETER MANAGEMENT CORPORATION
        (WHOLLY-OWNED SUBSIDIARY OF DEAN WITTER, DISCOVER & CO. ("DWD"))
                       STATEMENTS OF FINANCIAL CONDITION
 
                                     ASSETS
<TABLE>
<CAPTION>
                                                                                          DECEMBER 31,
                                                                               ----------------------------------
                                                                                     1996              1995
                                                                               ----------------  ----------------
<S>                                                                            <C>               <C>
                                                                                      $                 $
 
Investments in affiliated partnerships (Note 2)..............................        18,955,507        17,788,814
Receivable from affiliated partnership.......................................             1,049             1,154
                                                                               ----------------  ----------------
        TOTAL ASSETS.........................................................        18,956,556        17,789,968
                                                                               ----------------  ----------------
                                                                               ----------------  ----------------
 
<CAPTION>
 
                                      LIABILITIES AND STOCKHOLDER'S EQUITY
<S>                                                                            <C>               <C>
 
LIABILITIES:
    Payable to DWD (Note 3)..................................................        15,762,235        15,157,797
    Income taxes payable.....................................................           114,218           156,337
    Accrued expenses.........................................................            30,379            32,579
                                                                               ----------------  ----------------
        TOTAL LIABILITIES....................................................        15,906,832        15,346,713
                                                                               ----------------  ----------------
STOCKHOLDER'S EQUITY:
    Common stock, no par value:
        Authorized 1,000 shares;
        Issued and outstanding 100 shares
        at stated value of $500 per share....................................            50,000            50,000
    Additional paid-in capital...............................................       111,170,000       111,170,000
    Retained earnings........................................................         2,899,724         2,293,255
                                                                               ----------------  ----------------
                                                                                    114,119,724       113,513,255
    Less: Notes receivable from DWD (Note 4).................................      (111,070,000)     (111,070,000)
                                                                               ----------------  ----------------
        TOTAL STOCKHOLDER'S EQUITY...........................................         3,049,724         2,443,255
                                                                               ----------------  ----------------
        TOTAL LIABILITIES AND                                                        18,956,556        17,789,968
         STOCKHOLDER'S EQUITY................................................
                                                                               ----------------  ----------------
                                                                               ----------------  ----------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-12
<PAGE>
                         DEMETER MANAGEMENT CORPORATION
            (WHOLLY-OWNED SUBSIDIARY OF DEAN WITTER, DISCOVER & CO.)
                   NOTES TO STATEMENTS OF FINANCIAL CONDITION
 
1.  BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES
 
    Demeter  Management Corporation ("Demeter") is  a wholly-owned subsidiary of
Dean Witter, Discover & Co. ("DWD").
 
    Demeter manages the following commodity pools as their sole general partner:
Dean Witter Cornerstone Fund II, Dean  Witter Cornerstone Fund III, Dean  Witter
Cornerstone Fund IV, Columbia Futures Fund, Dean Witter Diversified Futures Fund
Limited  Partnership ("DWDFF"),  Dean Witter  Diversified Futures  Fund II L.P.,
Dean  Witter  Diversified  Futures  Fund  III  L.P.,  Dean  Witter  Multi-Market
Portfolio  L.P.  (formerly Dean  Witter  Principal Guaranteed  Fund  L.P.), Dean
Witter Principal  Plus Fund  L.P.  ("DWPPF"), Dean  Witter Principal  Plus  Fund
Management  L.P., Dean Witter Portfolio Strategy Fund L.P. (formerly Dean Witter
Principal Secured Futures Fund L.P.) ("DWPSF"), Dean Witter Select Futures  Fund
L.P. ("DWSFF"), Dean Witter Global Perspective Portfolio L.P., Dean Witter World
Currency  Fund L.P., Dean Witter Institutional Balanced Portfolio Account I L.P.
("DWIBP I"),  Dean Witter  Institutional Account  II L.P.,  DWFCM  International
Access  Fund L.P., Dean  Witter Anchor Institutional  Balanced Portfolio Account
L.P., Dean Witter Spectrum Balanced  L.P., Dean Witter Spectrum Strategic  L.P.,
Dean  Witter  Spectrum Technical  L.P., DWR  Chesapeake L.P.,  DWR Institutional
Balanced Portfolio Account III L.P., and DWR/JWH Futures Fund L.P. ("DWR/JWH").
 
    Each of the commodity pools is a limited partnership organized to engage  in
the  speculative trading  of commodity  futures contracts,  forward contracts on
foreign currencies and other commodity interests.
 
    Demeter reopened DWDFF for additional investment and on June 30, 1995  DWDFF
registered  with the Securities and Exchange Commission (the "SEC") 75,000 units
which were offered to investors for a limited time in a public offering.
 
    Demeter terminated Dean  Witter Principal Guaranteed  Fund III L.P.  ("DWPGF
III")  as  of  September 30,  1995.  DWPGF  III received  the  guarantee payment
necessary to bring the net  asset value per unit to  $1,000, and all units  were
redeemed.
 
    Demeter  reopened DWPPF  for additional investment  and on  November 8, 1995
DWPPF registered with the SEC 75,000 units which were offered to investors for a
limited time in a public offering.
 
    In November of 1995, Demeter entered into a limited partnership agreement as
General Partner  in DWR/JWH,  which offered  units to  investors in  an  initial
private offering period ending January 31, 1996 and began trading on February 1,
1996. Demeter's initial investment in DWR/JWH was $75,000.
 
    Demeter  terminated Dean  Witter Principal  Guaranteed Fund  II L.P. ("DWPGF
II") as of March 31,  1996. DWPGF II was liquidated  and holders of units as  of
March  31, 1996 received a  final distribution equal to  the net asset value per
unit on that date multiplied by their respective number of units.
 
    On July 31, 1996, with the Net  Asset Value of DWPSF above $1,000 per  unit,
the  letter of  credit arrangement  which assured  investors who  redeemed their
units on July 31, 1996 a minimum Net Asset Value of $1,000 per unit expired.  On
August  1, 1996,  that partnership was  renamed "Dean  Witter Portfolio Strategy
Fund L.P." and will  continue trading in a  non-guaranteed format. As a  result,
both  the reduction  of interest income  of 1.125%  per annum for  the letter of
credit fee paid by Dean  Witter Reynolds Inc. ("DWR")  and the letter of  credit
fee of 1% of new appreciation have been eliminated.
 
    Demeter  reopened DWSFF  for additional  investment and  on August  13, 1996
DWSFF registered with the SEC 60,000 Units which are being offered to  investors
for a limited time in a public offering.
 
                                      F-13
<PAGE>
    On  August  20,  1996, Demeter  ceased  trading  activities in  DWIBP  I and
distributed approximately 97% of DWIBP I's assets. At that time, there were open
forward positions maturing  through December  1996. DWIBP I  will liquidate  and
distribute its remaining assets in 1997.
 
    INCOME  TAXES--The  results of  operations of  Demeter  are included  in the
consolidated federal income tax  return of DWD, computed  on a separate  company
basis and due to DWD.
 
    BASIS  OF ACCOUNTING--The preparation of  financial statements in conformity
with generally  accepted  accounting  principles  requires  management  to  make
estimates  and assumptions  that affect  the reported  amounts in  the financial
statements.
 
2.  INVESTMENTS IN AFFILIATED PARTNERSHIPS
 
    The limited partnership agreement of each commodity pool requires Demeter to
maintain a general  partnership interest  in each partnership,  generally in  an
amount  equal  to,  but  not  less than,  1  percent  of  the  aggregate capital
contributed to the partnership by all partners.
 
    The total assets, liabilities and partners' capital of all the funds managed
by Demeter at December 31, 1996 and 1995 were as follows:
 
<TABLE>
<CAPTION>
                                                                                DECEMBER 31,
                                                                     ----------------------------------
                                                                           1996              1995
                                                                     ----------------  ----------------
                                                                            $                 $
<S>                                                                  <C>               <C>
Total assets.......................................................     1,084,660,072     1,091,082,360
Total liabilities..................................................        27,893,698        20,934,451
Total partners' capital............................................     1,056,766,374     1,070,147,909
</TABLE>
 
    Demeter's investments  in  the above  limited  partnerships are  carried  at
market   value  with  changes  in  such  market  value  reflected  currently  in
operations.
 
3.  PAYABLE TO DWD
    The payable  to  DWD  is primarily  for  amounts  due for  the  purchase  of
partnership investments.
 
4.  NET WORTH REQUIREMENT
 
    At  December 31, 1996 and 1995, Demeter held non-interest bearing notes from
DWD that were payable  on demand. These notes  were received in connection  with
additional capital contributions aggregating $111,070,000.
 
    The limited partnership agreement of each commodity pool requires Demeter to
maintain  its  net  worth  at  an  amount  not  less  than  10%  of  the capital
contributions by  all partners  in each  pool in  which Demeter  is the  general
partner  (15%  if the  capital contributions  to any  partnership are  less than
$2,500,000, or $250,000, whichever is less).
 
    In  calculating  this  requirement,  Demeter's  interests  in  each  limited
partnership  and any amounts receivable from or payable to such partnerships are
excluded from net worth. Notes receivable from DWD are included in net worth for
purposes of this calculation.
 
5.  LEGAL MATTERS
 
    On September 6, 10, and 20, 1996,  and on March 13, 1997, similar  purported
class  actions were  filed in  the Superior  Court of  the State  of California,
County of  Los Angeles,  on behalf  of all  purchasers of  interests in  limited
partnership  commodity pools sold by DWR. Named defendants include DWR, Demeter,
Dean Witter Futures and Currency Management Inc., DWD (all such parties referred
to  hereafter  as  the  "Dean  Witter  Parties"),  certain  limited  partnership
commodity  pools of  which Demeter is  the general partner,  and certain trading
advisors to those  pools. Similar  purported class  actions were  also filed  on
September  18 and 20,  1996 in the Supreme  Court of the State  of New York, New
York County, and  on November 14,  1996 in the  Superior Court of  the State  of
Delaware, New Castle County, against the Dean Witter Parties and certain trading
advisors on behalf of all purchasers of interests in various limited partnership
commodity  pools sold  by DWR. Generally,  these complaints  allege, among other
things, that the defendants  committed fraud, deceit, misrepresentation,  breach
of fiduciary duty,
 
                                      F-14
<PAGE>
fraudulent  and unfair business practices,  unjust enrichment, and conversion in
connection with  the  sale and  operation  of the  various  limited  partnership
commodity  pools. The  complaints seek  unspecified amounts  of compensatory and
punitive damages  and  other relief.  It  is possible  that  additional  similar
actions  may be filed  and that, in  the course of  these actions, other parties
could be added  as defendants. The  Dean Witter Parties  believe that they  have
strong  defenses to, and they will vigorously contest, the actions. Although the
ultimate outcome of legal proceedings cannot be predicted with certainty, it  is
the  opinion of management of the Dean Witter Parties that the resolution of the
actions will not have  a material adverse effect  on the financial condition  or
the results of operations of any of the Dean Witter Parties.
 
6.  SUBSEQUENT EVENTS
 
    On  February 5, 1997,  DWD and Morgan Stanley  Group Inc. ("Morgan Stanley")
announced a definitive agreement to merge. The new company will be named  Morgan
Stanley,  Dean Witter, Discover  & Co. Under  the terms of  the merger agreement
unanimously approved by the Boards of  Directors of both companies, each  Morgan
Stanley  common share will  be exchanged for  1.65 common shares  of DWD. Morgan
Stanley preferred shares outstanding at the date of the merger will be exchanged
for  preferred  shares  of  DWD   having  substantially  identical  terms.   The
transaction,  which is expected to be completed in mid-1997, is intended to be a
tax-free exchange and accounted for as a  pooling of interest and is subject  to
customary  closing conditions,  including certain  regulatory approvals  and the
approval of shareholders of both companies.
 
    Demeter has determined to  reopen DWPSF for  additional investment and  will
register with the SEC 50,000 units to be offered to investors for a limited time
in a public offering.
 
                                      F-15
<PAGE>
                                                                       EXHIBIT A
 
    TABLE OF CONTENTS TO AMENDED AND RESTATED LIMITED PARTNERSHIP AGREEMENT
                  FOR DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
 
<TABLE>
<CAPTION>
                                                                                                                          PAGE
                                                                                                                        ---------
<C>        <S>        <C>                                                                                               <C>
       1.  Formation; Name............................................................................................  A-1
       2.  Office.....................................................................................................  A-1
       3.  Business...................................................................................................  A-1
       4.  Term; Dissolution; Fiscal Year.............................................................................  A-2
           (a)        Term............................................................................................  A-2
           (b)        Dissolution.....................................................................................  A-2
           (c)        Fiscal Year.....................................................................................  A-2
       5.  Net Worth of General Partner...............................................................................  A-2
       6.  Capital Contributions and Offering of Units of Limited Partnership Interest................................  A-3
       7.  Allocation of Profits and Losses; Accounting; Other Matters................................................  A-5
           (a)        Capital Accounts................................................................................  A-5
           (b)        Monthly Allocations.............................................................................  A-5
           (c)        Allocation of Profit and Loss for Federal Income Tax Purposes...................................  A-5
           (d)        Definitions; Accounting.........................................................................  A-7
           (e)        Expenses and Limitations Thereof................................................................  A-7
           (f)        Limited Liability of Limited Partners...........................................................  A-8
           (g)        Return of Limited Partner's Capital Contribution................................................  A-8
           (h)        Distributions...................................................................................  A-8
           (i)        Interest on Assets..............................................................................  A-8
           Management and Trading Policies............................................................................
       8.                                                                                                               A-9
           (a)        Management of the Partnership...................................................................  A-9
           (b)        General Partner.................................................................................  A-9
           (c)        General Trading Policies........................................................................  A-10
           (d)        Changes to Trading Policies.....................................................................  A-11
           (e)        Miscellaneous...................................................................................  A-12
       9.  Audits; Reports to Limited Partners........................................................................  A-13
      10.  Transfer; Redemption of Units..............................................................................  A-14
           (a)        Transfer........................................................................................  A-14
           (b)        Redemption......................................................................................  A-15
      11.  Special Power of Attorney..................................................................................  A-16
      12.  Withdrawal of Partners.....................................................................................  A-16
      13.  No Personal Liability for Return of Capital................................................................  A-17
      14.  Standard of Liability; Indemnification.....................................................................  A-17
           (a)        Standard of Liability...........................................................................  A-17
           (b)        Indemnification by the Partnership..............................................................  A-17
           (c)        Affiliate.......................................................................................  A-18
           (d)        Indemnification by Partners.....................................................................  A-18
      15.  Amendments; Meetings.......................................................................................  A-18
           (a)        Amendments With Consent of the General Partner..................................................  A-18
           (b)        Meetings........................................................................................  A-19
           (c)        Amendments and Actions Without Consent of the General Partner...................................  A-19
           (d)        Action Without Meeting..........................................................................  A-19
           (e)        Amendments to Certificate of Limited Partnership................................................  A-20
      16.  Additional Offerings.......................................................................................  A-20
      17.  Governing Law..............................................................................................  A-20
      18.  Miscellaneous..............................................................................................  A-20
           (a)        Priority Among Limited Partners.................................................................  A-20
           (b)        Notices.........................................................................................  A-20
           (c)        Binding Effect..................................................................................  A-20
           (d)        Captions........................................................................................  A-20
Annex A--Request for Redemption.......................................................................................  A-22
</TABLE>
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
               AMENDED AND RESTATED LIMITED PARTNERSHIP AGREEMENT
    This  Agreement  of Limited  Partnership,  made as  of  August 28,  1990, as
amended and restated as of              , 1997 (this "Agreement"), by and  among
Demeter  Management Corporation, a Delaware corporation (the "General Partner"),
and the other parties who shall execute this Agreement, whether in  counterpart,
by separate instrument, or otherwise, as limited partners (collectively "Limited
Partners"; the General Partner and Limited Partners may be collectively referred
to herein as "Partners").
 
                              W I T N E S S E T H:
 
    WHEREAS,  the parties  hereto desire to  form a limited  partnership for the
purpose of engaging in the speculative trading of futures interests;
 
    NOW, THEREFORE, the parties hereto hereby agree as follows:
 
1.  FORMATION; NAME.
 
    The parties hereto do hereby form  a limited partnership under the  Delaware
Revised  Uniform Limited Partnership Act,  as amended and in  effect on the date
hereof (the "Act"). The name of the limited partnership is Dean Witter Portfolio
Strategy Fund L.P.  (the "Partnership").  The General Partner  may, without  the
approval  of the Limited Partners, change the  name of the Partnership, or cause
the Partnership to  transact business  under another name.  The General  Partner
shall notify all Limited Partners (or any assignees thereof) of any such change.
The  General Partner shall execute and file a Certificate of Limited Partnership
of the Partnership (the "Certificate of Limited Partnership") in accordance with
the Act  and  shall execute,  file,  record,  and publish  as  appropriate  such
amendments,  assumed  name certificates,  and  other documents  as  necessary or
advisable in connection with the operation of the Partnership, as determined  by
the General Partner, and shall take all steps which the General Partner may deem
necessary or advisable to allow the Partnership to conduct business as a limited
partnership  where the Partnership conducts business  in any jurisdiction and to
otherwise provide that  the Limited  Partners will have  limited liability  with
respect  to the activities of the Partnership  in all such jurisdictions, and to
comply with the law of any jurisdiction. Each Limited Partner hereby  undertakes
to  furnish  to the  General Partner  a  power of  attorney and  such additional
information as the  General Partner  may request  to complete  and execute  such
documents,  and to  cooperate in  the filing,  recording, or  publishing of such
documents as the General Partner determines appropriate.
 
2.  OFFICE.
 
    The principal office  of the Partnership  shall be Two  World Trade  Center,
62nd Floor, New York, New York 10048, or such other place as the General Partner
may designate from time to time.
 
    The  address of  the principal  office of  the Partnership  in the  State of
Delaware is c/o The  Corporation Trust Company,  Corporation Trust Center,  1209
Orange  Street, Wilmington, New Castle County,  Delaware 19801, and the name and
address of the registered agent for service of process on the Partnership in the
State of Delaware is  The Corporation Trust  Company, Corporation Trust  Center,
1209 Orange Street, Wilmington, New Castle County, Delaware 19801, or such other
agent as the General Partner shall designate from time to time.
 
3.  BUSINESS.
 
    The  Partnership's  business and  general purpose  is  to trade,  buy, sell,
spread, or otherwise acquire,  hold, or dispose  of commodities (including,  but
not  limited to,  foreign currencies,  mortgage-backed securities,  money market
instruments, financial instruments, and any other securities or items which  are
now, or may hereafter be, the subject of futures contract trading), domestic and
foreign  commodity  futures  contracts,  commodity  forward  contracts,  foreign
exchange commitments, options on physical commodities and on futures  contracts,
spot  (cash)  commodities  and  currencies, and  any  rights  pertaining thereto
(collectively, "futures  interests")  and  securities  (such  as  United  States
Treasury securities)
 
                                      A-1
<PAGE>
approved by the Commodity Futures Trading Commission (the "CFTC") for investment
of  customer  funds,  and to  engage  in  all activities  incident  thereto. The
objective of the Partnership's  business is appreciation  of its assets  through
speculative  trading. The  Partnership may pursue  this objective  in any lawful
manner consistent with the Partnership's  trading policies. The Partnership  may
engage  in  the  foregoing  activities either  directly  or  through  any lawful
transaction or any lawful activity into which a limited partnership may enter or
in which  a limited  partnership  may engage  under the  laws  of the  State  of
Delaware;  PROVIDED, that  such transactions  or activities  do not  subject the
Limited Partners to any  liability in excess of  the limited liability  provided
for herein and contemplated by the Act.
 
4.  TERM; DISSOLUTION; FISCAL YEAR.
 
    (A)   TERM.  The  term of the Partnership shall  commence upon the filing of
the Certificate of Limited Partnership in  the Office of the Secretary of  State
of the State of Delaware and shall end upon the first to occur of the following:
(a)  December 31, 2025; (b) insolvency, bankruptcy, dissolution, liquidation, or
termination of any general partner, unless the business of the Partnership shall
be continued by any remaining or successor general partner(s) in accordance with
the provisions  hereof; (c)  the occurrence  of any  event which  shall make  it
unlawful   for  the  existence  of  the  Partnership  to  be  continued;  (d)  a
determination by the General  Partner that the  Partnership must register  under
the Investment Company Act of 1940, as amended (the "1940 Act"), and the failure
of  the  Limited  Partners  to  effect  any  necessary  approvals  to  bring the
Partnership into compliance with the 1940 Act; (e) an election to terminate  and
dissolve  the Partnership  at a specified  time by Limited  Partners owning more
than 50% of  the Units (as  defined in  Section 6) then  outstanding, notice  of
which  is sent by registered  mail to the General Partner  not less than 90 days
prior to the effective date of such termination and dissolution; (f)  withdrawal
by  the  General Partner  (unless a  new  general partner(s)  is elected  by the
Limited Partners as provided in  Section 15(c); (g) a  decline in the Net  Asset
Value  (as defined in Section 7(d)(2)) of a Unit as of the close of business (as
determined by the General Partner) on any  day to less than $250; (h) a  decline
in  the Partnership's Net Assets (as defined in Section 7(d)(1)) as of the close
of business (as determined  by the General  Partner) on any  day to $250,000  or
less;  (i) a  determination by  the General  Partner that  the Partnership's Net
Assets in  relation  to  the  operating expenses  of  the  Partnership  make  it
unreasonable  or imprudent to continue the business of the Partnership; or (j) a
determination by the General  Partner to terminate  the Partnership following  a
Special Redemption Date as described in Section 9.
 
    (B)   DISSOLUTION.  Upon the occurrence  of an event causing the termination
of  the  Partnership,  the  Partnership   shall  terminate  and  be   dissolved.
Dissolution,  payment of  creditors, and  distribution of  the Partnership's Net
Assets shall be  effected as  soon as practicable  in accordance  with the  Act,
except  that the  General Partner  and each  Limited Partner  (and any assignee)
shall share in the  Net Assets of  the Partnership pro  rata in accordance  with
such Partner's respective capital account, less any amount owing by such Partner
(or  assignee) to the Partnership. The General  Partner shall, at its option, be
entitled to supervise the liquidation of the Partnership.
 
    Nothing contained in  this Agreement  shall impair, restrict,  or limit  the
rights and powers of the Partners under the law of the State of Delaware and any
other  jurisdiction in  which the  Partnership shall  be conducting  business to
reform  and  reconstitute   themselves  as  a   limited  partnership   following
dissolution  of the Partnership, either under  provisions identical to those set
forth herein or any others which they shall deem appropriate.
 
    (C)  FISCAL YEAR.  The fiscal year of the Partnership shall begin on January
1 of each year and end on the following December 31.
 
5.  NET WORTH OF GENERAL PARTNER.
 
    The General Partner agrees that at all times, as long as it remains  General
Partner  of the Partnership,  it shall maintain  its Net Worth  at an amount not
less than 10% of the total contributions to the Partnership by all Partners  and
to  any other limited partnership for which it  acts as a general partner by all
such partnership's partners; PROVIDED, HOWEVER, that if the total  contributions
to  the Partnership by all Partners, or  to any limited partnership for which it
acts as a general partner by all partners, are less
 
                                      A-2
<PAGE>
than $2,500,000,  then with  respect to  the Partnership  and any  such  limited
partnership, the General Partner shall maintain its Net Worth at an amount of at
least  15% of the total contributions to  the Partnership by all Partners and of
the total contributions  to any such  limited partnership for  which it acts  as
general partner by all such partnership's partners or $250,000, whichever is the
lesser; and, PROVIDED, FURTHER, that in no event shall the General Partner's Net
Worth  be less than $50,000. For the purposes of this Section 5, Net Worth shall
be calculated  in  accordance  with generally  accepted  accounting  principles,
except  as otherwise specified in this Section  5, with all current assets based
on their then current market values. The interests owned by the General  Partner
in  the Partnership and  any other partnerships  for which it  acts as a general
partner and  any  notes and  accounts  receivable  and payable  to  any  limited
partnership  in which it  has an interest shall  not be included  as an asset in
calculating its Net Worth, but any  notes receivable from an affiliate (as  such
term is defined in Regulation S-X of the rules and regulations of the Securities
and Exchange Commission (the "SEC")) of the General Partner or letters of credit
may be included.
 
    The  General Partner agrees  that it shall  not be a  general partner of any
limited partnership other than the Partnership unless, at all times when it is a
general partner of any such additional limited partnership, its Net Worth is  at
least equal to the Net Worth required by the preceding paragraph of this Section
5.
 
    The  requirements of the preceding  two paragraphs of this  Section 5 may be
modified by the General Partner at its option, without notice to or the  consent
of the Limited Partners, PROVIDED THAT: (a) such modification does not adversely
affect  the  interests of  the  Limited Partners,  and  (b) the  General Partner
obtains a written  opinion of  counsel for  the Partnership  that such  proposed
modification:   (i)  will  not  adversely   affect  the  classification  of  the
Partnership as a  partnership for  federal income  tax purposes,  (ii) will  not
adversely  affect the status  of the Limited Partners  as limited partners under
the Act, and (iii) will not violate any applicable state securities or Blue  Sky
law  or any rules, regulations, guidelines,  or statements of policy promulgated
or applied thereunder; PROVIDED, HOWEVER,  that the General Partner's net  worth
may  not be reduced  below the lesser of  (A) the net  worth required by Section
II.B of the Guidelines for Registration  of Commodity Pool Programs, as  adopted
in  revised form  by the  North American  Securities Administrators Association,
Inc. in September 1993 (the "NASAA Guidelines"), and (B) the net worth  required
by such Guidelines as in effect on the date of such proposed modification.
 
6.  CAPITAL CONTRIBUTIONS AND OFFERING OF UNITS OF LIMITED PARTNERSHIP INTEREST.
 
    The  General  Partner  is  herewith  contributing  $1,000  in  cash  to  the
Partnership for which it is receiving  one Unit of General Partnership  Interest
("Unit  of General Partnership  Interest"). At the initial  closing, if any, for
the acceptance of subscriptions for Units of Limited Partnership Interest of the
Partnership ("Units" or, individually, a "Unit") during the initial offering  of
Units  (the  "Initial Closing"),  the General  Partner  shall contribute  to the
Partnership in $1,000 increments the additional amount in cash that is necessary
to make the General Partner's capital contribution at least equal to the greater
of (a)  $25,000  and  (b) 1%  of  the  aggregate capital  contributions  to  the
Partnership by all Partners (including the General Partner's contribution). Such
additional  contribution  by  the General  Partner  need not  exceed  the amount
described above and shall be evidenced by Units of General Partnership Interest.
Thereafter, the General Partner  shall maintain its interest  in the capital  of
the  Partnership at no less  than the amount stated  above. The General Partner,
without notice to or consent of  the Limited Partners, may withdraw any  portion
of  its interest in the  Partnership that is in  excess of its required interest
described above. The net asset value  of a Unit of General Partnership  Interest
shall  at all times  be equivalent to the  Net Asset Value of  a Unit of Limited
Partnership Interest.
    Interests in the Partnership, other than the General Partnership Interest of
the General Partner, shall  be Units. The initial  Limited Partner named at  the
end  of this Agreement is herewith contributing $1,000 in cash to the capital of
the Partnership in  consideration for  receiving one Unit.  The initial  Limited
Partner  agrees to withdraw as a Limited Partner at the Initial Closing, and the
remaining
 
                                      A-3
<PAGE>
Partners hereby consent to such  withdrawal. The $1,000 capital contribution  of
the  initial Limited Partner shall be returned  to him, without interest, and he
shall have no further rights or obligations as a Limited Partner with respect to
such contribution.
 
    The General Partner, for and on  behalf of the Partnership, shall issue  and
sell  Units to persons  desiring to become Limited  Partners, PROVIDED that such
persons shall be determined by the General Partner to be qualified investors and
their subscriptions for Units  shall be accepted by  the General Partner,  which
acceptance  the General  Partner may withhold  in whole  or in part  in its sole
discretion. The  minimum subscription  for Units  per subscriber  shall be  such
amount  as the  General Partner shall  determine from  time to time  in its sole
discretion.
    Following the  initial  offering of  Units,  the Initial  Closing,  and  the
commencement  of trading  operations, the  Partnership, directly  and/or through
Dean Witter Reynolds Inc. ("DWR") or such  other selling agent or agents as  may
be approved by the General Partner, may at any time and from time to time in the
sole  discretion of the  General Partner offer  for sale Units  and fractions of
Units (to the third decimal place) in public and/or private offerings, at prices
per Unit, in such minimum amounts, for  such periods of time, and on such  terms
and  conditions as the  General Partner shall determine  in its sole discretion.
Units offered during  any subsequent offering  shall be issued  and sold by  the
Partnership as of the opening of business (as determined by the General Partner)
on  the  first business  day of  a fiscal  quarter  or month  and a  closing for
subscriptions received  during such  offering shall  be held  as of  such  date;
PROVIDED,  HOWEVER, that  the General  Partner may  hold closings  at such other
times and for such other periods as it shall determine in its sole discretion to
effectuate such  subsequent offerings.  At each  such closing,  the  Partnership
shall  issue  and sell  Units  to each  subscriber  whose subscription  shall be
accepted by the  General Partner at  a price per  Unit to be  determined by  the
General  Partner in  its sole discretion;  PROVIDED, HOWEVER,  that the offering
price per Unit during any subsequent offering of Units shall not at any time  be
less  than the Net Asset  Value of a Unit  as of the opening  of business on the
date of the  applicable closing at  which such  Unit shall be  issued and  sold.
During  any  subsequent offering,  Units may  be subscribed  for by  the General
Partner, DWR, Dean Witter,  Discover & Co. ("DWD"),  any trading advisor to  the
Partnership,  and  such persons'  respective shareholders,  directors, officers,
partners, employees, principals, and affiliates. Subscriptions for Units by such
persons shall not preclude them from receiving compensation from the Partnership
for services  rendered by  them in  their respective  capacities as  other  than
Limited  Partners. No  subscriber for  Units during  any subsequent  offering of
Units shall become a Limited Partner until the General Partner shall: (a) accept
such subscriber's subscription  at the  closing relating to  such offering;  (b)
execute  this Agreement on  behalf of such  subscriber pursuant to  the power of
attorney in Section 11; and  (c) make an entry on  the books and records of  the
Partnership  reflecting  that such  subscriber has  been  admitted as  a Limited
Partner. Accepted subscribers shall be deemed  Limited Partners at such time  as
their  admission shall be reflected on the books and records of the Partnership.
The aggregate of all capital contributions to the Partnership shall be available
to the Partnership to carry on its business and no interest shall be paid by the
Partnership on any such contribution.
    In connection with the Partnership's offering of Units, the General Partner,
on behalf  of  the  Partnership, shall:  (a)  cause  to be  filed  one  or  more
Disclosure  Documents and such amendments and supplements thereto as the General
Partner shall deem advisable or  as may be required  by applicable law with  the
CFTC   and  the  National   Futures  Association  ("NFA"),   Forms  D  or  other
applications, notices or forms  with the SEC and  state securities and Blue  Sky
administrators,  and Registration Statements, Prospectuses (as used hereinafter,
the term "Prospectus" shall mean the most recent version of the Prospectus filed
with the  SEC in  connection with  the  offering of  Units, unless  the  context
otherwise  requires) and such amendments and  supplements thereto as the General
Partner shall deem advisable or as may  be required by applicable law, with  the
CFTC,  the NFA,  the SEC,  and the  National Association  of Securities Dealers,
Inc.; (b) qualify by registration or  exemption from registration the Units  for
sale  under the Blue Sky and securities laws of such states of the United States
and such other jurisdictions as the General Partner in its sole discretion shall
deem advisable  or  as  may  be  required  by  applicable  law;  (c)  make  such
arrangements  for  the  sale of  Units  as  it shall  deem  advisable, including
 
                                      A-4
<PAGE>
engaging DWR or any other  firm as selling agent for  Units and entering into  a
selling  agreement with DWR  or such other  firm; and (d)  take such action with
respect to  and in  order to  effectuate the  matters described  in clauses  (a)
through (c) as it shall deem advisable or necessary.
 
    All  Units subscribed for shall be issued  subject to the collection of good
funds. If, at any time, good funds  representing payment for Units are not  made
available  to the Partnership because a subscriber has provided bad funds in the
form of a bad check or draft or otherwise to DWR or another selling agent which,
in turn,  has deposited  the  subscription amount  with  the escrow  agent,  the
Partnership shall cancel the Units issued to such subscriber represented by such
bad  funds, and the subscriber's name shall be removed as a Limited Partner from
the books and records of the Partnership. Any losses or profits sustained by the
Partnership in connection with its commodity trading allocable to such cancelled
Units shall be deemed a decrease or  increase in Net Assets and allocated  among
the remaining Partners as described in Section 7. Each Limited Partner agrees to
reimburse  the Partnership for any expense  or loss (including any trading loss)
incurred in connection  with the  issuance and  cancellation of  any such  Units
issued to such Limited Partner.
 
7.  ALLOCATION OF PROFITS AND LOSSES; ACCOUNTING; OTHER MATTERS.
 
    (A)   CAPITAL  ACCOUNTS.   A capital account  shall be  established for each
Partner. The initial  balance of  each Partner's  capital account  shall be  the
amount of a Partner's initial capital contribution to the Partnership.
 
    (B)  MONTHLY ALLOCATIONS.  As of the close of business (as determined by the
General  Partner) on the last day  of each calendar month ("Determination Date")
during each fiscal  year of  the Partnership, the  following determinations  and
allocations shall be made:
 
        (1)  The Net Assets of the  Partnership (as defined in Section 7(d)(1)),
    before accrual of the monthly management fees and incentive fees payable  to
    the trading advisors shall be determined.
        (2)  The accrued monthly  management fees shall  then be charged against
    Net Assets.
        (3) The accrued incentive fees, if any, payable to the trading  advisors
    shall then be charged against Net Assets.
 
        (4)  Any increase  or decrease in  Net Assets (after  the adjustments in
    subparagraphs (2) and (3)  above), over those  of the immediately  preceding
    Determination  Date (or,  in the case  of the first  Determination Date, the
    Initial Closing), shall then be credited or charged to the capital  accounts
    of  each Partner in the ratio that the  balance of each account bears to the
    balance of all accounts.
        (5) The amount of any  distribution to a Partner,  any amount paid to  a
    Partner  on redemption of Units  and any amount paid  to the General Partner
    upon withdrawal of its interest in the Partnership shall be charged to  that
    Partner's capital account.
 
    (C)   ALLOCATION OF PROFIT AND LOSS FOR  FEDERAL INCOME TAX PURPOSES.  As of
the end  of each  fiscal year  of the  Partnership, the  Partnership's  realized
profit  or loss shall be allocated among  the Partners pursuant to the following
subparagraphs for federal income  tax purposes. Such  allocations of profit  and
loss  will be pro rata from net capital gain or loss and net operating income or
loss realized by the Partnership. For United States federal income tax purposes,
a distinction will be made between net short-term gain or loss and net long-term
gain or loss.
 
        (1) Items of  ordinary income (such  as interest or  credits in lieu  of
    interest)  and  expense  (such  as  the  management  fees,  incentive  fees,
    transaction fees  and  costs,  administrative  expenses,  and  extraordinary
    expenses)  shall be  allocated pro  rata among  the Partners  based on their
    respective capital accounts (exclusive of these items of ordinary income  or
    expense)  as of the end of each month  in which the items of ordinary income
    or expense accrued.
 
                                      A-5
<PAGE>
        (2) Net realized  capital gain  or loss from  the Partnership's  trading
    activities shall be allocated as follows:
 
           (aa)  For the  purpose of  allocating the  Partnership's net realized
       capital gain or loss  among the Partners, there  shall be established  an
       allocation  account with  respect to  each outstanding  Unit. The initial
       balance of  each allocation  account  shall be  the  amount paid  by  the
       Partner  to the  Partnership for the  Unit. Allocation  accounts shall be
       adjusted as of the end of each fiscal  year and as of the date a  Partner
       completely redeems his Units as follows:
 
                (i)  Each allocation account shall be increased by the amount of
           income allocated to the holder  of the Unit pursuant to  subparagraph
           (c)(1) above and subparagraph (c)(2)(cc) below.
 
               (ii)  Each allocation account shall be decreased by the amount of
           expense or  loss allocated  to the  holder of  the Unit  pursuant  to
           subparagraph  (c)(1) above  and subparagraph (c)(2)(ee)  below and by
           the amount of any  distribution the holder of  the Unit has  received
           with respect to the Unit (other than on redemption of Units).
 
              (iii) When a Unit is redeemed, the allocation account with respect
           to such Unit shall be eliminated.
 
           (bb)  Net  realized capital  gain shall  be  allocated first  to each
       Partner who has partially redeemed his Units during the fiscal year up to
       the excess, if any, of the  amount received upon redemption of the  Units
       over the allocation account attributable to the redeemed Units.
 
           (cc) Net realized capital gain remaining after the allocation thereof
       pursuant  to subparagraph (c)(2)(bb) above  shall be allocated next among
       all Partners  whose  capital  accounts  are in  excess  of  their  Units'
       allocation  accounts  (after the  adjustments in  subparagraph (c)(2)(bb)
       above) in the  ratio that each  such Partner's excess  bears to all  such
       Partners'  excesses. In the  event that gain to  be allocated pursuant to
       this subparagraph  (c)(2)(cc) is  greater  than the  excess of  all  such
       Partners'  capital accounts over all such allocation accounts, the excess
       will be allocated  among all Partners  in the ratio  that each  Partner's
       capital account bears to all Partners' capital accounts.
 
           (dd)  Net  realized capital  loss shall  be  allocated first  to each
       Partner who has partially redeemed his Units during the fiscal year up to
       the excess,  if  any,  of  the allocation  account  attributable  to  the
       redeemed Units over the amount received upon redemption of the Units.
 
           (ee) Net realized capital loss remaining after the allocation thereof
       pursuant  to subparagraph (c)(2)(dd) above  shall be allocated next among
       all Partners  whose Units'  allocation accounts  are in  excess of  their
       capital accounts (after the adjustments in subparagraph (c)(2)(dd) above)
       in  the ratio that each such Partner's excess bears to all such Partners'
       excesses. In  the  event that  loss  to  be allocated  pursuant  to  this
       subparagraph (c)(2)(ee) is greater than the excess of all such allocation
       accounts  over all such Partners' capital  accounts, the excess loss will
       be allocated among all Partners in the ratio that each Partner's  capital
       account bears to all Partners' capital accounts.
 
        (3) The tax allocations prescribed by this Section 7(c) shall be made to
    each  holder of a  Unit whether or  not the holder  is a substituted Limited
    Partner. In the event that a Unit has been transferred or assigned  pursuant
    to  Section 10(a), the allocations prescribed  by this Section 7(c) shall be
    made with respect to such Unit without regard to the transfer or assignment,
    except that in the year of transfer or assignment the allocations prescribed
    by this Section 7(c) shall be divided between the transferor or assignor and
    the transferee  or assignee  based on  the number  of months  each held  the
    transferred  or  assigned  Unit.  For purposes  of  this  Section  7(c), tax
    allocations shall  be  made  to  the  General  Partner's  Units  of  General
    Partnership Interest on a Unit-equivalent basis.
 
        (4)  The allocation of  profit and loss for  federal income tax purposes
    set forth herein  is intended  to allocate  taxable profits  and loss  among
    Partners generally in the ratio and to the extent
 
                                      A-6
<PAGE>
    that  net profit and net  loss are allocated to  such Partners under Section
    7(b) hereof  so as  to  eliminate, to  the  extent possible,  any  disparity
    between  a Partner's capital account and his allocation account with respect
    to each Unit then outstanding, consistent  with the principles set forth  in
    Section  704(c)(2) of  the Internal  Revenue Code  of 1986,  as amended (the
    "Code").
 
    (D)  DEFINITIONS; ACCOUNTING.
 
    (1)  NET ASSETS.  The Partnership's "Net Assets" shall mean the total assets
of the Partnership (including, but not limited to, all cash and cash equivalents
(valued at cost), accrued interest and amortization of original issue  discount,
and the market value of all open futures interests positions and other assets of
the  Partnership) less the total liabilities  of the Partnership (including, but
not limited to, one-half of the brokerage commissions that would be payable with
respect to  the closing  of each  of the  Partnership's open  futures  interests
positions, management fees, incentive fees, administrative expenses, transaction
fees  and  costs,  and  extraordinary expenses)  determined  in  accordance with
generally accepted accounting principles consistently applied under the  accrual
basis  of accounting.  Unless generally  accepted accounting  principles require
otherwise, the market  value of  a futures interest  traded on  a United  States
exchange shall mean the settlement price on the exchange on which the particular
futures  interest shall be traded by the  Partnership on the day with respect to
which Net  Assets shall  be determined;  PROVIDED, HOWEVER,  that if  a  futures
interest  could not  have been liquidated  on such  day due to  the operation of
daily limits or  other rules of  the exchange upon  which that futures  interest
shall  be traded or otherwise, the settlement  price on the first subsequent day
on which the  futures interest could  have been liquidated  shall be the  market
value  of such  futures interest  for such  day. The  market value  of a futures
interest traded on a foreign exchange or  market shall mean its market value  as
determined  by  the General  Partner on  a basis  consistently applied  for each
different variety of futures interest.
 
    (2)  NET ASSET VALUE.   The "Net Asset Value" of  a Unit shall mean the  Net
Assets allocated to capital accounts represented by Units of Limited Partnership
Interest  divided  by  the  aggregate number  of  Units  of  Limited Partnership
Interest.
 
    (E)    EXPENSES  AND  LIMITATIONS  THEREOF.    DWR  shall  pay  all  of  the
organizational  and  offering expenses  of the  Partnership (including,  but not
limited to, legal, accounting, and  auditing fees, printing costs, filing  fees,
escrow  fees, marketing  costs and  expenses, and  other related  expenses), and
shall not be reimbursed therefor.
 
    The Partnership  shall  pay all  of  its ordinary  administrative  expenses,
including  expenses  for  services provided  by  third parties  selected  by the
General Partner and reimbursement of all out-of-pocket expenses incurred by such
persons and by the General Partner  and its affiliates in providing services  to
the  Partnership, subject to  a maximum of  0.25% per year  of the Partnership's
average Net Assets  (calculated on  the basis of  the average  of month-end  Net
Assets  during each calendar year). The  General Partner or an affiliate thereof
shall pay and shall  not be reimbursed for  any such administrative expenses  in
excess of such maximum amount. Such expenses shall include legal, accounting and
auditing  expenses  (including expenses  incurred in  preparing reports  and tax
information to  Limited Partners  and regulatory  authorities and  expenses  for
specialized administrative services), printing and duplication expenses, mailing
expenses,  and filing fees. The  General Partner shall not  be reimbursed by the
Partnership for any costs  incurred by it relating  to office space,  equipment,
and staff necessary for Partnership operations and administration of redemptions
of  Units. The Partnership  will be obligated to  pay any extraordinary expenses
(determined in accordance with generally accepted accounting principles) it  may
incur;  PROVIDED,  HOWEVER,  that the  costs  of bringing  the  Partnership into
compliance with the Investment Company Act of 1940, as amended, and  registering
as an investment company, should such registration be required, shall be paid by
either the General Partner or DWR.
    The  Partnership's assets held by DWR or other commodity brokers as provided
in Section 7(i) may be used as margin solely for the Partnership's trading.  The
Partnership  shall bear all commodity brokerage fees and commissions and, except
as otherwise set forth herein or described in the Prospectus, shall be obligated
to pay all liabilities incurred by  it, including, without limitation, all  fees
and
 
                                      A-7
<PAGE>
expenses  incurred in  connection with  its trading  activities (including floor
brokerage fees,  exchange  fees, clearinghouse  fees,  NFA fees,  "give  up"  or
transfer  fees,  costs  associated  with  the  taking  of  delivery  of  futures
interests, fees for the execution of forward contract transactions, fees for the
execution of cash transactions relating to the exchange of futures for  physical
transactions,  and  the  use  of  DWR's  institutional  and  overnight execution
facilities (collectively,  "transaction fees  and costs")),  and management  and
incentive  fees payable  to its  trading advisors.  Appropriate reserves  may be
created, accrued, and charged against Net Assets for contingent liabilities,  if
any,  as of the date any such  contingent liability becomes known to the General
Partner. Such reserves  shall reduce  the Net Asset  Value of  interests in  the
Partnership for all purposes, including redemptions.
 
    The  following  special limits  shall apply  to  the Partnership's  fees and
expenses, in  accordance with  Section IV.C  of the  NASAA Guidelines:  (a)  the
aggregate  of (i) the management fees payable  by the Partnership to the trading
advisors for the Partnership, and  (ii) the Partnership's customary and  routine
administrative expenses (other than commodity brokerage commissions, transaction
fees  and  costs, incentive  fees,  legal and  auditing  fees and  expenses, and
extraordinary expenses), shall  not exceed 1/2  of 1% of  the Partnership's  Net
Assets  per  month, or  6% of  the  Partnership's Net  Assets annually;  (b) the
quarterly incentive fees payable by the Partnership to any trading advisors  for
the  Partnership shall not  exceed 15% of the  Partnership's Trading Profits (as
defined in the Prospectus), PROVIDED that  such incentive fees may be  increased
by  2% for each 1% by which the  aggregate fees and expenses described in clause
(a) of this sentence are limited below the 6% of Net Assets annual limit thereon
(I.E., if such fees and  expenses are limited to 4%  of Net Assets, the  maximum
incentive  fee payable may  be increased to 19%);  (c) the brokerage commissions
(excluding transaction fees and costs) payable by the Partnership to DWR or  any
other commodity broker for the Partnership shall not exceed 80% of DWR's or such
other  commodity broker's  published non-member rates  for speculative accounts;
and  (d)  the  aggregate  of  (i)  the  brokerage  commissions  payable  by  the
Partnership  to DWR or any other commodity  broker for the Partnership, (ii) the
transaction fees and costs payable by the Partnership, and (iii) the net  excess
interest  and compensating balance benefits to DWR or any other commodity broker
for the Partnership (after crediting the Partnership with interest, as described
in Section  7(i) and  the Prospectus),  shall  not exceed  14% annually  of  the
Partnership's average monthly Net Assets as of the last day of each month during
each  calendar year. The General  Partner or an affiliate  thereof shall pay and
shall not be reimbursed for any fees and expenses in excess of any such limits.
 
    (F)  LIMITED LIABILITY OF LIMITED PARTNERS.  Each Unit, when purchased by  a
Limited  Partner in accordance with the terms  of this Agreement, shall be fully
paid and nonassessable. No Limited Partner shall be liable for the Partnership's
obligations  in  excess  of  such  Partner's  unredeemed  capital  contribution,
undistributed  profits, if any, and any  distributions and amounts received upon
redemption of Units, together with  interest thereon. The Partnership shall  not
make  a claim against a  Limited Partner with respect  to amounts distributed to
such Partner or amounts received by such Partner upon redemption of Units unless
the Net  Assets  of  the Partnership  (which  shall  not include  any  right  of
contribution from the General Partner except to the extent previously made by it
pursuant  to this Agreement) shall be  insufficient to discharge the liabilities
of the Partnership which shall have arisen prior to the payment of such amounts.
 
    (G)  RETURN OF LIMITED PARTNER'S CAPITAL CONTRIBUTION.  Except to the extent
that a  Limited  Partner  shall  have the  right  to  withdraw  capital  through
redemption  of Units in accordance with  Section 10(b), no Limited Partner shall
have any right to demand the return  of his capital contribution or any  profits
added thereto, except upon termination and dissolution of the Partnership. In no
event  shall  a  Limited Partner  be  entitled  to demand  or  receive  from the
Partnership property other than cash.
 
    (H)   DISTRIBUTIONS.   The General  Partner shall  have sole  discretion  in
determining  what distributions (other than on redemption of Units), if any, the
Partnership shall make to its Partners. If made, all distributions shall be  pro
rata  in accordance with the respective capital accounts of the Partners and may
be made by credit to  a Limited Partner's account with  DWR or by check if  such
account is closed.
 
    (I)   INTEREST ON ASSETS.   The Partnership shall  deposit all of its assets
with DWR and such other commodity brokers as the Partnership shall utilize  from
time to time, and such assets shall be used by
 
                                      A-8
<PAGE>
the  Partnership  to  engage  in  futures  interests  trading.  Unless  provided
otherwise in the Prospectus, such assets will be invested in securities approved
by the CFTC  for investment of  customer funds or  held in  non-interest-bearing
accounts,  and DWR will credit the Partnership at month-end with interest income
as set forth in the Prospectus.
 
8.  MANAGEMENT AND TRADING POLICIES.
 
    (A)  MANAGEMENT OF THE PARTNERSHIP.  Except as may be otherwise specifically
provided herein, the General Partner, to the exclusion of all Limited  Partners,
shall  conduct and  manage the  business of  the Partnership,  including without
limitation, the investment of the funds  of the Partnership. No Limited  Partner
shall  have  the power  to represent,  act for,  sign for,  or bind  the General
Partner or  the Partnership.  Except as  provided herein,  no Partner  shall  be
entitled  to any salary, draw, or  other compensation from the Partnership. Each
Limited Partner  hereby  undertakes  to  furnish to  the  General  Partner  such
additional  information  as  may be  determined  by  the General  Partner  to be
required or appropriate for the Partnership  to open and maintain an account  or
accounts  with commodity brokerage  firms for the purpose  of trading in futures
interests.
 
    The General Partner shall be under  a fiduciary duty to conduct the  affairs
of  the  Partnership  in the  best  interests  of the  Partnership.  The Limited
Partners will under no circumstances be permitted to contract away, or be deemed
to have contracted  away, the  fiduciary obligations  owed them  by the  General
Partner  under statutory or common law. The General Partner shall have fiduciary
responsibility for  the  safekeeping of  all  of the  funds  and assets  of  the
Partnership,  whether or  not in  its immediate  possession or  control, and the
General Partner shall  not employ, or  permit another to  employ, such funds  or
assets in any manner except for the benefit of the Partnership.
 
    In  the event that the General Partner at any time believes, upon the advice
of counsel to the General Partner or as a result of a position taken by the SEC,
that the Partnership may be required to register as an investment company  under
the  1940 Act, then the General  Partner may terminate the Partnership's futures
interests trading activity, liquidate all  open futures interests and take  such
action as the General Partner believes appropriate to avoid the requirement that
the Partnership register as an investment company or take all action the General
Partner  believes appropriate  or necessary  to register  the Partnership  as an
investment company and bring the Partnership into compliance with the 1940 Act.
 
    (B)  GENERAL PARTNER.   The General Partner,  on behalf of the  Partnership,
shall  retain one or more trading advisors (who may include officers, employees,
and affiliates of the General Partner, DWR, and DWD; PROVIDED, HOWEVER, that  no
such  officer, employee or affiliate shall be retained as trading advisor to the
Partnership until the first business day following a Redemption Date (as defined
in Section 10(b)),  and (i)  notice of  such retention  must be  mailed to  each
Limited  Partner at least five  business days prior to the  last date on which a
"Request for Redemption" (as defined in  Section 10(b)) must be received by  the
General  Partner with respect  to the applicable Redemption  Date; and (ii) such
notice must describe the  redemption and voting rights  of Limited Partners,  as
set  forth  in Sections  10(b) and  15) to  make all  trading decisions  for the
Partnership and  shall  delegate complete  trading  discretion to  such  trading
advisors;  PROVIDED, HOWEVER, that the General  Partner may override any trading
instructions: (i) that the General  Partner, in its sole discretion,  determines
to  be in violation  of any trading policy  of the Partnership,  as set forth in
subsection (c) below; (ii) to the  extent the General Partner believes doing  so
is  necessary  for the  protection of  the Partnership;  (iii) to  terminate the
futures interests trading  of the  Partnership; (iv) to  comply with  applicable
laws  or regulations; or (v) as and to the extent necessary, upon the failure of
a trading advisor to comply with a request to make the necessary amount of funds
available to  the  Partnership  within  five  days  of  such  request,  to  fund
distributions, redemptions, or reapportionments among trading advisors or to pay
the expenses of the Partnership; and PROVIDED, FURTHER, that the General Partner
may  make trading decisions at any time  at which a trading advisor shall become
incapacitated or some  other emergency  shall arise as  a result  of which  such
trading  advisor shall  be unable  or unwilling to  act and  a successor trading
advisor has not yet been retained.
 
                                      A-9
<PAGE>
    The Partnership  shall  not  enter  into  any  agreement  with  DWR  or  its
affiliates  (other than a selling agreement  as contemplated by Section 6) which
has a term of  more than one year  and which does not  provide that it shall  be
terminable by the Partnership without penalty upon 60 days' prior written notice
by  the General Partner; PROVIDED, HOWEVER,  that any such agreement may provide
for  automatic  renewal  for  additional   one-year  terms  unless  either   the
Partnership or DWR or its affiliates, upon written notice given not less than 60
days  prior to the  original termination date or  any extended termination date,
notifies the other party of its intention not to renew.
 
    Subject  to  the  foregoing  paragraph,   the  General  Partner  is   hereby
authorized,  on behalf of the Partnership, to  enter into the form of management
agreement described  in the  Prospectus (the  "Management Agreement")  with  any
trading advisor described in the Prospectus, and to cause the Partnership to pay
to  such person the management and incentive fees provided for in the Management
Agreements, as described in the Prospectus.
 
    The General Partner is further authorized: (a) to modify (including changing
the form  and  amount of  compensation  and  other arrangements  and  terms)  or
terminate any management agreement in its sole discretion in accordance with the
terms  of such agreements and to employ from time to time other trading advisors
for the  Partnership pursuant  to management  agreements having  such terms  and
conditions and providing for such form and amount of compensation as the General
Partner  in its sole  discretion shall deem to  be in the  best interests of the
Partnership, which terms may include provision  for the payment of an  incentive
fee  to a new or replacement trading advisor or advisors which shall be based on
any  trading  profits  which  shall  be  earned  by  such  trading   advisor(s),
irrespective of whether such profits shall exceed trading losses incurred by any
previous  or existing  trading advisor  or advisors or  by the  Partnership as a
whole; (b) to enter into the Customer Agreement described in the Prospectus (the
"Customer  Agreement")  with  DWR,  as  commodity  broker,  and  to  cause   the
Partnership  to pay  to DWR brokerage  commissions and transaction  costs at the
rates provided for in the Customer Agreement and as described in the Prospectus;
and (c) to modify  (including changing the form  and amount of compensation  and
other  arrangements and terms) and terminate  the Customer Agreement in its sole
discretion in accordance  with the terms  of such Agreement  and to employ  from
time  to time other  commodity brokers for the  Partnership pursuant to customer
agreements having such  terms and  conditions and  providing for  such form  and
amount  of compensation as the General Partner in its sole discretion shall deem
to be  in the  best interest  of the  Partnership, PROVIDED,  HOWEVER, that  the
General  Partner shall review at least  annually the brokerage arrangements with
the Partnership to ensure that such brokerage commissions are fair,  reasonable,
and  competitive, and  represent the best  price and  services available, taking
into consideration, in particular, when  the commodity broker is an  "affiliate"
of  the General Partner (as such term is defined in Section 14(c)): (i) the size
of the  Partnership; (ii)  the  futures interests  trading activity;  (iii)  the
services  provided by the commodity broker, the General Partner or any affiliate
thereof to the Partnership; (iv) the cost incurred by the commodity broker,  the
General  Partner  or  any  affiliate thereof  in  organizing  and  operating the
Partnership and offering Units; (v) the  overall costs to the Partnership;  (vi)
any  excess interest and  compensating balance benefits  to the commodity broker
from assets held thereby; and (vii) if the General Partner does not receive  any
direct  compensation from the  Partnership for its  services as General Partner,
the risks incurred by the General Partner as such.
 
    The General  Partner  may subdivide  or  combine Units  in  its  discretion,
provided  that no  such subdivision  or combination  shall affect  the Net Asset
Value of any Limited Partner's interest in the Partnership.
    (C)   GENERAL TRADING  POLICIES.   The  General  Partner shall  require  any
trading  advisor retained by the Partnership  to follow the trading policies set
forth below. The following trading policies are applicable to the Partnership as
a whole and do not apply to the trading of any individual trading advisor.
 
        1.  The trading advisors will trade only in those futures interests that
    have been approved by the General Partner. The Partnership normally will not
    establish new positions in a futures interest for any one contract month  or
    option  if such  additional positions  would result in  a net  long or short
 
                                      A-10
<PAGE>
    position for that futures interest requiring as margin or premium more  than
    15%  of the  Partnership's Net  Assets. In  addition, the  Partnership will,
    except under  extraordinary  circumstances, maintain  positions  in  futures
    interests  in  at  least  two  market  segments  (I.E.,  agricultural items,
    industrial items  (including energies),  metals, currencies,  and  financial
    instruments  (including stock, financial, and economic indexes) ) at any one
    time.
 
        2.  The Partnership will not acquire additional positions in any futures
    interest if such additional positions would result in the aggregate net long
    or short positions for all futures interests requiring as margin or  premium
    for  all outstanding  positions more than  66 2/3% of  the Partnership's Net
    Assets. Under  certain market  conditions,  such as  an abrupt  increase  in
    margins  required by  an exchange  or its  clearinghouse or  an inability to
    liquidate open positions because of daily price fluctuation limits or  both,
    the Partnership may be required to commit as margin amounts in excess of the
    foregoing  limit.  In such  event, a  trading advisor  will reduce  its open
    positions  to  comply  with  the  foregoing  limit  before  initiating   new
    positions.
 
        3.   The Partnership will trade  currencies and other commodities in the
    interbank and forward  contract markets only  with banks, brokers,  dealers,
    and  other financial institutions which  the General Partner, in conjunction
    with  DWR,  has   determined  to   be  creditworthy.   In  determining   the
    creditworthiness  of  a  counterparty  to a  forward  contract,  the General
    Partner and DWR  will consult with  the Corporate Credit  Department of  DWR
    which  monitors participants in the interbank and forward markets with which
    DWR deals on a regular basis.
 
        4.  The trading  advisors will not generally  take a position after  the
    first  notice day in any futures interest  during the delivery month of that
    futures interest, except  to match  trades to close  out a  position on  the
    interbank foreign currency or other forward markets or liquidate trades in a
    limit market.
 
        5.  The Partnership will not employ the trading technique commonly known
    as "pyramiding," in which the speculator uses unrealized profits on existing
    positions  in a  given futures interest  due to favorable  price movement as
    margin specifically to  buy or sell  additional positions in  the same or  a
    related  futures interest. Taking into  account the Partnership's open trade
    equity on existing  positions in  determining generally  whether to  acquire
    additional  futures interest positions on behalf of the Partnership will not
    be considered to constitute "pyramiding."
 
        6.  The Partnership will not purchase, sell, or trade securities (except
    securities approved  by the  CFTC  for investment  of customer  funds).  The
    Partnership  may,  however, trade  in  futures contracts  on  securities and
    securities indexes, options on such  futures contracts, and other  commodity
    options.
 
        7.    The Partnership  will not  under any  circumstances lend  money to
    affiliated  entities  or  otherwise.   The  Partnership  will  not   utilize
    borrowings  except  if  the  Partnership  purchases  or  takes  delivery  of
    commodities. Use of lines of credit in connection with forward trading  does
    not, however, constitute borrowing for purposes of this trading limitation.
 
        8.   The  Partnership will  not permit  "churning" of  the Partnership's
    assets.
 
        9.  If the Partnership borrows money, to the extent permitted by Trading
    Policy 7, from the General Partner or any "affiliate" thereof (as defined in
    the first sentence of Section 14(c)),  the lending entity in such case  (the
    "Lender")  may not receive interest in excess of its interest costs, nor may
    the Lender receive interest in excess of the amounts which would be  charged
    the  Partnership  (without  reference  to  the  General  Partner's financial
    abilities or guarantees) by unrelated banks on comparable loans for the same
    purpose, nor may the Lender or  any affiliate thereof receive any points  or
    other financing charges or fees regardless of the amount.
 
    (D)   CHANGES TO TRADING  POLICIES.  The General  Partner shall not make any
material change in the trading policies in Section 8(c) without obtaining  prior
written  approval of  Limited Partners owning  more than 50%  of the outstanding
Units.
 
                                      A-11
<PAGE>
    (E)   MISCELLANEOUS.  The General Partner  may take such other actions as it
deems necessary  or  desirable  to  manage  the  business  of  the  Partnership,
including,  but not limited to, the  following: opening bank accounts and paying
or authorizing the payment of distributions to the Partners and the expenses  of
the  Partnership,  such  as  brokerage  fees  and  commissions,  management  and
incentive fees, and transaction fees and costs.
 
    The General Partner shall prepare or cause to be prepared and shall file  on
or  before the due date (or any  extension thereof) any federal, state, or local
tax returns which shall be required to be filed by the Partnership. The  General
Partner shall cause the Partnership to pay any taxes payable by the Partnership;
PROVIDED,  HOWEVER, that the General Partner shall  not be required to cause the
Partnership to pay any  tax so long  as the General  Partner or the  Partnership
shall  be  in good  faith and  by appropriate  legal proceedings  contesting the
validity, applicability, or amount thereof and such contest shall not materially
endanger any right or interest of the Partnership.
 
    The General Partner  shall be authorized  to perform all  duties imposed  by
Section  6221 through 6233  of the Code  on the General  Partner as "tax matters
partner" of the Partnership,  including but not limited  to, the following:  (a)
the  power  to  conduct all  audits  and other  administrative  proceedings with
respect to  Partnership  tax items;  (b)  the power  to  extend the  statute  of
limitations  for all Limited Partners with respect to Partnership tax items; (c)
the power to file a petition with  an appropriate federal court for review of  a
final  Partnership administrative adjustment; and (d)  the power to enter into a
settlement with the  Internal Revenue Service  on behalf of,  and binding  upon,
those Limited Partners having less than a 1% interest in the Partnership, unless
a  Limited  Partner shall  have notified  the Internal  Revenue Service  and the
General Partner that the General Partner may not act on such Partner's behalf.
 
    If the Partnership  is required to  withhold United States  taxes on  income
with  respect  to  Units held  by  Limited  Partners who  are  nonresident alien
individuals, foreign  corporations,  foreign partnerships,  foreign  trusts,  or
foreign  estates, the General Partner may pay such  tax out of its own funds and
then be reimbursed out  of the proceeds of  any distribution or redemption  with
respect to such Units.
 
    The  General Partner shall  keep at the principal  office of the Partnership
such books and records relating to the  business of the Partnership as it  deems
necessary  or  advisable, as  are  required by  the  Commodity Exchange  Act, as
amended (the "CEAct"), and  the CFTC's rules and  regulations thereunder, or  as
shall be required by other regulatory bodies, exchanges, boards, and authorities
having jurisdiction. Such books and records shall be retained by the Partnership
for not less than five years.
 
    The  Partnership's books and records shall  be available to Limited Partners
or their authorized attorneys or agents for inspection and copying during normal
business hours of the Partnership and,  upon request. The General Partner  shall
send  copies of same  to any Limited  Partner upon payment  by him of reasonable
reproduction and distribution costs. Any subscription documentation executed  by
a  Limited Partner in connection with his purchase of Units shall be retained by
the Partnership for not less than six years.
 
    Except as described  herein or  in the  Prospectus, no  person may  receive,
directly   or  indirectly,  any  advisory,  management,  or  incentive  fee  for
investment advice who shares  or participates in  per trade commodity  brokerage
commissions paid by the Partnership. No commodity broker for the Partnership may
pay, directly or indirectly, rebates or "give-ups" to the General Partner or any
trading advisor, and such prohibitions may not be circumvented by any reciprocal
business  arrangements. Assets of  the Partnership shall  not be commingled with
assets of  any other  person. Margin  deposits  and deposits  of assets  with  a
commodity broker shall not constitute commingling.
 
    The   General  Partner  shall   devote  such  time   and  resources  to  the
Partnership's business  and affairs  as it  in its  sole discretion  shall  deem
necessary or advisable to effectively manage the Partnership. Subject to Section
5,  the General Partner may engage in other business activities and shall not be
required to refrain  from any other  activity or disgorge  any profits from  any
such  activity, whether as general partner of additional partnerships formed for
investment in futures interests or otherwise. The
 
                                      A-12
<PAGE>
General Partner  may engage  and compensate,  on behalf  and from  funds of  the
Partnership,  such  persons, firms,  or  corporations, including  any affiliated
person or  entity,  as the  General  Partner in  its  sole judgment  shall  deem
advisable  for the  conduct and  operation of  the business  of the Partnership;
PROVIDED, HOWEVER, that, except as described  herein and in the Prospectus,  the
General  Partner shall not engage  any person, firm, or  corporation which is an
affiliate (as defined  in the first  sentence of Section  14(c)) of the  General
Partner to perform services for the Partnership without having made a good faith
determination that (i) the affiliate which it proposes to engage to perform such
services  is  qualified  to  do  so (considering  the  prior  experience  of the
affiliate or the individuals employed thereby); (ii) the terms and conditions of
the agreement pursuant to  which such affiliate is  to perform services for  the
Partnership are no less favorable to the Partnership than could be obtained from
equally-qualified unaffiliated third parties, or are otherwise determined by the
General  Partner to be  fair and reasonable  to the Partnership  and the Limited
Partners; and (iii)  the maximum  period covered  by the  agreement pursuant  to
which such affiliate is to perform services for the Partnership shall not exceed
one  year, and such agreement shall be  terminable without penalty upon 60 days'
prior written  notice by  the Partnership.  Nothing contained  in the  preceding
sentence  shall prohibit the  General Partner from  receiving reimbursement from
the Partnership for expenses advanced on  behalf of the Partnership (other  than
organizational and offering expenses).
 
    No  person dealing with  the General Partner shall  be required to determine
its authority  to  make any  undertaking  on behalf  of  the Partnership  or  to
determine any fact or circumstance bearing upon the existence of its authority.
 
9.  AUDITS; REPORTS TO LIMITED PARTNERS.
 
    The  Partnership's  books  shall  be  audited  annually  by  an  independent
certified public accounting  firm selected by  the General Partner  in its  sole
discretion.  The Partnership shall cause each  Partner to receive: (a) within 90
days after the  close of each  fiscal year an  annual report containing  audited
financial  statements  (including  a  statement of  income  and  a  statement of
financial condition) of the Partnership for the fiscal year then ended, prepared
in accordance with generally accepted accounting principles and accompanied by a
report of the  accounting firm  which audited  such statements,  and such  other
information  as the  CFTC and  NFA may  from time  to time  require (such annual
reports will provide a detailed statement  of any transactions with the  General
Partner  or its affiliates and of fees, commissions and any compensation paid or
accrued to the General Partner or its affiliates for the fiscal year  completed,
showing  the  amount  paid  or  accrued  to  each  recipient  and  the  services
performed); (b) within 75 days  after the close of each  fiscal year (but in  no
event  later than March  15 of each  year) such tax  information relating to the
Partnership as is necessary for such Partner to complete his federal income  tax
return; (c) within 30 days after the close of each calendar month such financial
and  other information with respect to the  Partnership as the CFTC and NFA from
time to  time  shall  require  in monthly  reports,  together  with  information
concerning  any material change in the brokerage commissions and fees payable by
the Partnership to DWR; and (d) at such times as shall be necessary or advisable
in the General Partner's sole discretion, such other information as the CFTC and
NFA from time to time shall require under the CEAct to be given to  participants
in commodity pools.
 
    In  addition, if any of  the following events occurs,  notice of such event,
including a description of the redemption and voting rights of Limited Partners,
as set forth in Sections 10(b) and  15, shall be mailed to each Limited  Partner
within seven business days after the occurrence of such event: (a) a decrease in
the Net Asset Value of a Unit as of the close of business on any business day to
50% or less of the Net Asset Value for such Unit as of the end of the end of the
immediately  preceding month; (b) any material  amendment to this Agreement; (c)
any change in trading advisor or any material change in the management agreement
with the trading advisor;  (d) any change in  commodity brokers or any  material
change  in the compensation arrangements with a commodity broker; (e) any change
in general partners or any material change in the compensation arrangements with
a general partner;  (f) any  change in the  Partnership's fiscal  year; (g)  any
material  change  in the  Partnership's trading  policies;  or (h)  cessation of
futures interests trading by the Partnership. In  the case of a notice given  in
accordance  with  clause (a)  of the  immediately  preceding sentence:  (i) such
notice shall also advise Limited Partners
 
                                      A-13
<PAGE>
that a "Special Redemption Date," on a date specified in such notice (but in  no
event  earlier  than 15,  nor  later than  45, days  after  the mailing  of such
notice), will take place as of which Limited Partners may redeem their Units  in
the  same manner as  provided in Section  10(b) for regular  Redemption Dates (a
Special Redemption Date may take place  on a regular Redemption Date); and  (ii)
following  the close of business on the date  of the 50% decrease giving rise to
such notice, the Partnership shall liquidate all existing positions as  promptly
as  reasonably  practicable  and  shall suspend  all  futures  interests trading
through the  Special  Redemption Date.  Thereafter,  the General  Partner  shall
determine  whether to reinstitute futures interests  trading or to terminate the
Partnership. As  used  herein, "material  change  in the  Partnership's  trading
policies"  shall mean any change in  those trading policies specified in Section
8(c).
 
    The Net Asset  Value of  a Unit  shall be  determined daily  by the  General
Partner  and  the most  recent  Net Asset  Value  calculation shall  be promptly
supplied by the  General Partner  in writing to  any Limited  Partner after  the
General Partner shall have received a written request from such Partner.
 
    In  addition, no increase (subject to the  limits in the fourth paragraph of
Section 7(e))  in  any  of the  management  or  incentive fees  payable  by  the
Partnership,  or the caps on brokerage  commissions, transaction fees and costs,
ordinary administrative expenses, or net excess interest or compensating balance
benefits, all as described  in the Prospectus, may  take effect until the  first
business day following a Redemption Date (as defined in Section 10(b)), PROVIDED
that:  (i) notice of  such increase is  mailed to each  Limited Partner at least
five business days prior to  the last date on  which a "Request for  Redemption"
(as  defined in  Section 10(b))  must be  received by  the General  Partner with
respect to the applicable Redemption Date;  (ii) such notice shall describe  the
redemption and voting rights of Limited Partners, as set forth in Sections 10(b)
and  15; and (iii)  none of such fees  or caps may be  increased until the first
business day following the first Redemption Date as of which a redemption charge
is no longer payable as set forth in Section 10(b).
 
10.  TRANSFER; REDEMPTION OF UNITS.
 
    (A)  TRANSFER.  A Limited Partner  may transfer or assign his Units only  as
provided  in  this  Section 10(a).  No  transferee  or assignee  shall  become a
substituted Limited Partner unless  the General Partner  first consents to  such
transfer  or  assignment in  writing, which  consent  shall not  be unreasonably
withheld. Any transfer or assignment of Units which is permitted hereunder shall
be effective as of the end of the month in which such transfer or assignment  is
made; PROVIDED, HOWEVER, that the Partnership need not recognize any transfer or
assignment  until it has received at least 30 days' prior written notice thereof
from the Limited Partner,  which notice shall set  forth the address and  social
security or taxpayer identification number of the transferee or assignee and the
number  of Units to be transferred or assigned, and which notice shall be signed
by the Limited Partner. No transfer or assignment of Units will be effective  or
recognized  by the Partnership if the  transferee or assignee, or the transferor
or assignor (if  fewer than all  Units held  by the transferor  or assignor  are
being transferred or assigned), would, by reason of such transfer or assignment,
acquire  Units which do not meet  the minimum initial subscription requirements,
as  described  in  the  Prospectus;   PROVIDED,  HOWEVER,  that  the   foregoing
restriction  shall not apply to transfers or assignments of Units (i) by the way
of gift or  inheritance, (ii) to  any members of  the Limited Partner's  family,
(iii)  resulting from divorce, annulment,  separation or similar proceedings, or
(iv) to any person who would be deemed an "affiliate" of the Limited Partner  as
defined  in  the first  sentence  of Section  14(c)  [adding new  clause  (v) as
follows:  "(v)  if  such  person  is  an  officer,  director  or  partner,   any
partnership,  corporation,  association, or  other legal  entity for  which such
person acts in any such capacity"]. No transfer or assignment shall be permitted
unless the General  Partner is satisfied  that (i) such  transfer or  assignment
would  not be in violation  of the Act or  applicable federal, state, or foreign
securities laws,  and  (ii) notwithstanding  such  transfer or  assignment,  the
Partnership  shall continue to be classified as  a partnership rather than as an
association taxable as a corporation under  the Code. No transfer or  assignment
of Units shall be effective or recognized by the Partnership if such transfer or
assignment would result in the termination of the Partnership for federal income
tax purposes, and any attempted transfer or assignment in violation hereof shall
be  ineffective to transfer or assign any such Units. Any transferee or assignee
of Units who
 
                                      A-14
<PAGE>
has not been admitted to the Partnership as a substituted Limited Partner  shall
not  have any of the rights of a  Limited Partner, except that such person shall
receive that share of capital and profits, shall have that right of  redemption,
and  those rights to which his transferor  or assignor would otherwise have been
entitled and shall remain subject to  the other terms of this Agreement  binding
upon Limited Partners. No Limited Partner shall have any right to approve of any
person  becoming a substituted  Limited Partner. The  Limited Partner shall bear
all costs  (including any  attorneys'  and accountants'  fees) related  to  such
transfer or assignment of his Units.
 
    In  the  event that  the  General Partner  consents  to the  admission  of a
substituted Limited Partner pursuant to this Section 10(a), the General  Partner
is  hereby authorized to take  such actions as may  be necessary to reflect such
substitution of a Limited Partner.
 
    (B)  REDEMPTION.  Except as set forth below and in accordance with the terms
hereof, a Limited Partner (or any assignee thereof) may withdraw all or part  of
his  unredeemed  capital  contribution  and undistributed  profits,  if  any, by
requiring the Partnership to redeem  all or part of his  Units at the Net  Asset
Value  thereof, reduced as  hereinafter described (any  such withdrawal shall be
referred to herein as a "Redemption").  Redemptions shall be made only in  whole
Units  or in multiples of $1,000, except that fractions of Units may be redeemed
if a Limited Partner shall be redeeming his entire interest in the Partnership.
 
    Persons who have been Limited Partners  for more than six months may  redeem
all or part of their Units, regardless of when such Units were purchased, at any
month-end  in  the  manner  described  herein.  Such  Units  may  be  subject to
redemption charges as described herein.  Persons who have been Limited  Partners
for  less than six months may first redeem Units effective as of the last day of
the sixth  month following  the closing  at  which such  person first  became  a
Limited  Partner in the  manner described herein.  Such Units may  be subject to
redemption charges as described herein.
 
    Units redeemed on or prior to the  last day of the twelfth month after  such
Units  were purchased will be subject to a  redemption charge equal to 3% of the
Net Asset Value of a Unit on  the date of such redemption. Units redeemed  after
the  last day  of the  twelfth month  and on  or prior  to the  last day  of the
eighteenth month after  which such  Units were purchased  will be  subject to  a
redemption  charge equal to 2% of  the Net Asset Value of  a Unit on the date of
such redemption. Units redeemed after the  last day of the eighteenth month  and
on  or prior to the  last day of the twenty-fourth  month after which such Units
were purchased will be  subject to a  redemption charge equal to  1% of the  Net
Asset  Value of a Unit on the date  of such redemption. Units redeemed after the
last day of the twenty-fourth month  after which such Units were purchased  will
not  be subject to a redemption charge. Units redeemed after the last day of the
twenty-fourth month after which such Units were purchased will not be subject to
a redemption charge. The foregoing redemption charges will be paid to DWR.
 
    In addition, a limited partner in any of the other commodity pools for which
the General  Partner serves  as  the general  partner  and who  purchases  Units
pursuant  to an Exchange (as  defined in the Prospectus)  will not be subject to
the  foregoing  redemption  charges  or  restrictions  under  the  circumstances
described  below.  The number  of  Units (determined  on  a per  closing basis),
expressed as  a  percentage of  Units  purchased, which  are  not subject  to  a
redemption  charge is determined by dividing (a) the dollar amount received upon
redeeming an interest in  such other partnership and  used to purchase Units  by
(b) the total investment in the Partnership. In addition, redemption charges may
not  be  imposed for  certain large  purchasers  of Units,  or may  be otherwise
reduced or waived, as provided in  the Prospectus. Redemptions of Units will  be
deemed  to be in  the order in  which they are  purchased (assuming purchases at
more than one closing), with the Units not subject to a redemption charge  being
deemed to be the first Units purchased at a closing.
 
    Redemption  of a Limited Partner's  Units shall be effective  as of the last
day of the  first month ending  after an irrevocable  Request for Redemption  in
proper form shall have been received by the General Partner ("Redemption Date");
PROVIDED,  that  all liabilities,  contingent or  otherwise, of  the Partnership
(except any liability  to Partners  on account of  their capital  contributions)
shall  have  been  paid  or  there  shall  remain  property  of  the Partnership
sufficient to pay them. As used herein, "Request
 
                                      A-15
<PAGE>
for Redemption" shall mean a letter in the form specified by the General Partner
and received by the General Partner by  5:00 p.m. (New York City time) at  least
five  business  days  prior  to the  date  on  which such  Redemption  is  to be
effective. A  form of  Request  for Redemption  is  annexed to  this  Agreement.
Additional forms of Request for Redemption may be obtained by written request to
the General Partner.
 
    Upon  Redemption, a Limited Partner (or  any assignee thereof) shall receive
from the Partnership for  each Unit redeemed  an amount equal  to the Net  Asset
Value  thereof (as defined in  Section 7(d)(2)) as of  the Redemption Date, less
any redemption charges and any amount  owing by such Partner (and his  assignee,
if  any)  to the  Partnership  pursuant to  Section  14(d). If  a  Redemption is
requested by an  assignee, all  amounts owed  to the  Partnership under  Section
14(d)  by the Partner to whom such Unit was sold, as well as all amounts owed by
all assignees of such Unit, shall be  deducted from the Net Asset Value of  such
Unit  upon Redemption.  The General  Partner shall  endeavor to  pay Redemptions
within 10 business  days after the  Redemption Date, except  that under  special
circumstances  (including, but not limited to, the  inability on the part of the
Partnership to liquidate futures interests positions or the default or delay  in
payments  which shall be  due the Partnership from  commodity brokers, banks, or
other persons),  the  Partnership  may  delay  payment  to  Partners  requesting
Redemption  of Units  of the proportionate  part of  the Net Asset  Value of the
Units represented by the sums  which are the subject  of such default or  delay.
Redemptions  will be  made by credit  to the Limited  Partner's customer account
with DWR or by check  mailed to the Limited Partner  if such account is  closed.
The  General Partner may, in its  absolute discretion, waive any restrictions or
charges applicable to redemptions.
 
    The foregoing terms and conditions in  this Section 10(b), other than  those
in  the  second  paragraph  hereof  prohibiting  redemptions  before  the  sixth
month-end following  the closing  at  which a  person  first becomes  a  Limited
Partner,  shall also apply to redemptions effected on "Special Redemption Dates"
held in accordance with Section 9.
 
    The General  Partner  shall be  authorized  to execute,  file,  record,  and
publish,  on behalf of the Partnership and each Partner, such amendments to this
Agreement and such other documents as shall be necessary or desirable to reflect
any Redemption pursuant to this Section 10(b).
 
11.  SPECIAL POWER OF ATTORNEY.
 
    Each Limited Partner, by the  execution of this Agreement, does  irrevocably
constitute  and appoint the General Partner, with full power of substitution, as
his true and lawful agent and  attorney-in-fact, in his name, place, and  stead,
(a) to execute, acknowledge, swear to, deliver, file and record in his behalf in
the  appropriate  public  offices,  and  publish:  (i)  this  Agreement  and the
Certificate of Limited Partnership and amendments thereto; (ii) all  instruments
that  the  General  Partner  deems  necessary  or  appropriate  to  reflect  any
amendment, change,  or modification  of  this Agreement  or the  Certificate  of
Limited  Partnership made in accordance with  the terms of this Agreement; (iii)
certificates of assumed name; and (iv) all instruments that the General  Partner
deems  necessary or appropriate to qualify  or maintain the qualification of the
Partnership  to  do  business  as   a  foreign  limited  partnership  in   other
jurisdictions;  and (b) to admit additional  Limited Partners and, to the extent
that it is necessary under the laws of any jurisdiction, to execute, deliver and
file  amended  certificates  or  agreements  of  limited  partnership  or  other
instruments  to reflect  such admission.  The Power  of Attorney  granted herein
shall be irrevocable and deemed to be a power coupled with an interest and shall
survive the incapacity,  death, dissolution,  liquidation, or  termination of  a
Limited  Partner.  Each  Limited  Partner  hereby  agrees  to  be  bound  by any
representation made by the General Partner  and by any successor thereto  acting
in good faith pursuant to such Power of Attorney. Each Limited Partner agrees to
execute  a special Power of Attorney on a document separate from this Agreement.
In the event of any conflict between this Agreement and any instruments filed by
such attorney-in-fact pursuant to the Power of Attorney granted in this  Section
11, this Agreement shall control.
 
12.  WITHDRAWAL OF PARTNERS.
 
    The  Partnership  shall  terminate  and be  dissolved  upon  the withdrawal,
insolvency, bankruptcy, dissolution, liquidation, or termination of the  General
Partner  (unless a new general partner is  elected pursuant to Section 15(c) and
such  remaining   general   partner  shall   have   elected  to   continue   the
 
                                      A-16
<PAGE>
business  of the Partnership, which any remaining general partner shall have the
right to  do). The  General Partner  shall not  withdraw or  assign all  of  its
interest at any time without giving the Limited Partners 120 days' prior written
notice  of its  intention to  withdraw or  assign and,  if the  Limited Partners
thereupon elect a  new general  partner or  partners pursuant  to Section  15(c)
which elect to continue the business of the Partnership, the withdrawing General
Partner  shall  pay  all  reasonable expenses  incurred  by  the  Partnership in
connection with such withdrawal. The General Partner shall be paid the Net Asset
Value of its interests in the Partnership as of the date of such withdrawal.
 
    The death,  incompetency, withdrawal,  insolvency, bankruptcy,  termination,
liquidation, or dissolution of a Limited Partner shall not terminate or dissolve
the  Partnership, and such  Limited Partner, his  estate, custodian, or personal
representative shall have no right to  withdraw or value such Limited  Partner's
interest  in  the Partnership  except as  provided in  Section 10.  Each Limited
Partner (and any assignee of such  Partner's interest) expressly agrees that  in
the  event of his  death, he waives on  behalf of himself and  his estate and he
directs the legal representative of his estate and any person interested therein
to waive the furnishing of any inventory, accounting, or appraisal of the assets
of the Partnership and any right to an audit or examination of the books of  the
Partnership.
 
13.  NO PERSONAL LIABILITY FOR RETURN OF CAPITAL.
    Subject to Section 14, neither the General Partner, DWR, nor any "affiliate"
(as  defined in Section 14(c)) thereof shall be personally liable for the return
or repayment of all or any portion of the capital or profits of any Partner  (or
assignee),  it being expressly agreed that any such return of capital or profits
made pursuant to  this Agreement  shall be made  solely from  the assets  (which
shall  not include any  right of contribution  from the General  Partner) of the
Partnership.
 
14.  STANDARD OF LIABILITY; INDEMNIFICATION.
 
    (A)  STANDARD OF  LIABILITY.  The General  Partner and its "affiliates"  (as
defined  in Section 14(c)) shall  not be liable to  the Partnership, the Limited
Partners, or its or their successors or assigns, for any act, omission,  conduct
or  activity undertaken  by or  on behalf of  the Partnership  which the General
Partner determines,  in  good  faith,  to  be  in  the  best  interests  of  the
Partnership,  unless  such  act,  omission,  conduct,  or  activity  constituted
misconduct or negligence.
 
    (B)  INDEMNIFICATION BY THE  PARTNERSHIP.  The Partnership shall  indemnify,
defend,  and hold harmless the General  Partner and its "affiliates" (as defined
in Section 14(c)) from and against any loss, liability, damage, cost, or expense
(including attorneys' and accountants' fees and expenses incurred in defense  of
any  demands, claims, or lawsuits) actually and reasonably incurred arising from
any act,  omission, activity,  or conduct  undertaken  by or  on behalf  of  the
Partnership,  including, without  limitation, any  demands, claims,  or lawsuits
initiated by a  Limited Partner  (or assignee  thereof), PROVIDED  that (1)  the
General  Partner has determined, in good  faith, that the act, omission, conduct
or activity  giving  rise to  the  claim for  indemnification  was in  the  best
interests  of the Partnership,  and (2) the act,  omission, activity, or conduct
that was the basis for  such loss, liability, damage,  cost, or expense was  not
the result of misconduct or negligence. Notwithstanding anything to the contrary
contained  in  the  foregoing,  neither  the  General  Partner  nor  any  of its
affiliates nor any person acting as a broker-dealer shall be indemnified by  the
Partnership  for any losses, liabilities  or expenses arising from  or out of an
alleged violation of federal or state securities laws unless (1) there has  been
a  successful  adjudication  on  the  merits  of  each  count  involving alleged
securities law violations as  to the particular indemnitee,  or (2) such  claims
have  been  dismissed with  prejudice  on the  merits  by a  court  of competent
jurisdiction as  to the  particular  indemnitee, or  (3)  a court  of  competent
jurisidiction  approves  a  settlement  of  the  claims  against  the particular
indemnitee and finds that  indemnification of the  settlement and related  costs
should  be made,  PROVIDED, with regard  to such court  approval, the indemnitee
must apprise the  court of the  position of the  SEC, and the  positions of  the
respective  securities  administrators  of  Massachusetts,  Missouri,  Tennessee
and/or those other states and jurisdictions  in which the plaintiffs claim  that
they  were offered or sold Units, with respect to indemnification for securities
laws violations before seeking court approval for indemnification.  Furthermore,
in  any action or  proceeding brought by a  Limited Partner in  the right of the
Partnership to which the General
 
                                      A-17
<PAGE>
Partner or any affiliate thereof is a party defendant, any such person shall  be
indemnified  only to the extent  and subject to the  conditions specified in the
Act and this Section 14(b). The  Partnership shall make advances to the  General
Partner  or its affiliates hereunder only if: (1) the demand, claim, lawsuit, or
legal action relates to the performance of duties or services by such persons to
the Partnership;  (2)  such demand,  claim,  lawsuit,  or legal  action  is  not
initiated  by a Limited Partner; and (3) such advances are repaid, with interest
at the legal rate under  Delaware law, if the  person receiving such advance  is
ultimately found not to be entitled to indemnification hereunder.
 
    Nothing  contained in this Section 14(b) shall increase the liability of any
Limited Partner to the Partnership beyond  the amount of his unredeemed  capital
contribution,  undistributed  profits,  if  any,  and  any  amounts  received on
distributions and redemptions,  together with  interest thereon.  All rights  to
indemnification  and payment  of attorneys'  and accountants'  fees and expenses
shall not be affected by the  termination of the Partnership or the  withdrawal,
insolvency, or dissolution of the General Partner.
 
    The  Partnership  shall not  incur  the cost  of  that portion  of liability
insurance which insures the General Partner and its affiliates for any liability
as to which  the General Partner  and its affiliates  are prohibited from  being
indemnified.
 
    (C)  AFFILIATE.  As used in this Agreement, the term "affiliate" of a person
shall  mean: (i) any  natural person, partnership,  corporation, association, or
other legal entity directly or  indirectly owning, controlling, or holding  with
power  to vote 10% or more of  the outstanding voting securities of such person;
(ii) any partnership,  corporation, association,  or other legal  entity 10%  or
more  of whose outstanding  voting securities are  directly or indirectly owned,
controlled, or held with power to vote by such person; (iii) any natural person,
partnership,  corporation,  association,  or  other  legal  entity  directly  or
indirectly  controlling,  controlled  by,  or under  common  control  with, such
person; or (iv)  any officer  or director  of such  person. Notwithstanding  the
foregoing, "affiliates" for purposes of this Section 14 shall include only those
persons performing services for the Partnership.
 
    (D)  INDEMNIFICATION BY PARTNERS.  In the event that the Partnership is made
a  party to any  claim, demand, dispute,  or litigation or  otherwise incurs any
loss, liability, damage, cost, or expense as a result of, or in connection with,
any Partner's  (or  assignee's)  obligations or  liabilities  unrelated  to  the
Partnership's   business,  such   Partner  (or   assignees  cumulatively)  shall
indemnify, defend, hold harmless, and  reimburse the Partnership for such  loss,
liability,  damage,  cost, and  expense to  which  the Partnership  shall become
subject (including attorneys' and accountants' fees and expenses).
 
15.  AMENDMENTS; MEETINGS.
 
    (A)  AMENDMENTS WITH CONSENT OF THE GENERAL PARTNER.  If, at any time during
the term of  the Partnership,  the General Partner  shall deem  it necessary  or
desirable  to amend  this Agreement, such  amendment shall be  effective only if
embodied in  an  instrument approved  by  the  General Partner  and  by  Limited
Partners  owning more  than 50%  of the  Units then  outstanding and  if made in
accordance with, and to the extent permissible under, the Act. Any amendment  to
this Agreement or actions taken pursuant to this Section 15 that shall have been
approved by the percentage of outstanding Units prescribed above shall be deemed
to  have been approved  by all Limited  Partners. Notwithstanding the foregoing,
the General Partner  shall be  authorized to  amend this  Agreement without  the
consent  of  any  Limited  Partner in  order  to:  (i) change  the  name  of the
Partnership, (ii)  clarify any  inaccuracy or  any ambiguity,  or reconcile  any
inconsistent  provisions  herein, (iii)  make any  amendment to  this Agreement,
PROVIDED that such amendment is not adverse to the Limited Partners, (iv) effect
the intent of the allocations proposed herein to the maximum extent possible  in
the  event of a change in the Code or the interpretations thereof affecting such
allocations, (v)  attempt to  ensure that  the Partnership  is not  taxed as  an
association  taxable  as a  corporation for  federal  income tax  purposes, (vi)
qualify  or  maintain  the  qualification  of  the  Partnership  as  a   limited
partnership in any jurisdiction, (vii) delete or add any provision of or to this
Agreement required to be deleted or added by the staff of the SEC, the CFTC, any
other  federal agency or any state "Blue Sky" official or similar official or in
order to opt to be governed
 
                                      A-18
<PAGE>
by any amendment  or successor to  the Act,  or to comply  with applicable  law,
(viii)  make  any modification  to this  Agreement to  reflect the  admission of
additional or substitute general partners and to reflect any modification to the
Net Worth requirements applicable to the  General Partner and any other  general
partner,  as contemplated by Section  5 hereof, (ix) make  any amendment that is
appropriate or necessary, in the opinion of the General Partner, to prevent  the
Partnership  or the  General Partner or  its directors,  officers or controlling
persons from in any manner being subject to the provisions of the 1940 Act,  the
Investment  Advisers  Act of  1940, as  amended (the  "Advisers Act"),  or "plan
asset" regulations adopted under the Employee Retirement Income Security Act  of
1974,  as  amended,  and  (x)  to make  any  amendment  that  is  appropriate or
necessary, in the  opinion of the  General Partner, to  qualify the  Partnership
under the 1940 Act, and any individuals under the 1940 Act and the Advisers Act,
if  the  General  Partner is  informed  that  doing so  is  necessary.  Any such
supplemental or amendatory agreement shall be adhered to and have the same force
and effect from and after its effective date as if the same had originally  been
embodied  in, and formed a  part of, this Agreement;  PROVIDED, HOWEVER, that no
such supplemental  or amendatory  agreement shall,  without the  consent of  all
Partners  affected  thereby, change  or alter  the  provisions of  this proviso,
reduce the capital account of any Partner, or modify the percentage of  profits,
losses, or distributions to which any Partner is entitled.
    (B)   MEETINGS.   Any Limited Partner  or his authorized  attorney or agent,
upon written request to  the General Partner, delivered  either in person or  by
certified  mail, and upon  payment of reasonable  duplicating and postage costs,
shall be entitled to obtain from the General Partner by mail a list of the names
and addresses of record of all Limited Partners and the number of Units owned by
each.
 
    Upon receipt of  a written  request, signed  by Limited  Partners owning  at
least  10% of the  Units then owned by  Limited Partners, that  a meeting of the
Partnership be called to  vote upon any matter  upon which all Limited  Partners
may  vote pursuant to this Agreement, the  General Partner, by written notice to
each Limited Partner  of record sent  by certified mail  or delivered in  person
within 15 days after such receipt, shall call a meeting of the Partnership. Such
meeting shall be held at least 30 but not more than 60 days after the mailing of
such  notice, and  such notice  shall specify the  date, a  reasonable place and
time, and the purpose of such meeting.
 
    (C)  AMENDMENTS AND ACTIONS WITHOUT CONSENT OF THE GENERAL PARTNER.  At  any
meeting  of the  Limited Partners,  upon the affirmative  vote (which  may be in
person or by proxy) of Limited Partners  owning more than 50% of the Units  then
owned  by  Limited Partners,  the  following actions  may  be taken  without the
consent of the General Partner: (i) this Agreement may be amended in  accordance
with, and only to the extent permissible under, the Act; PROVIDED, HOWEVER, that
no  such amendment shall, without the  consent of all Partners affected thereby,
change or alter the  provisions of this proviso,  reduce the capital account  of
any  Partner, or modify  the percentage of profits,  losses, or distributions to
which any Partner is entitled; (ii) the Partnership may be dissolved; (iii)  the
General  Partner may  be removed  and replaced;  (iv) a  new general  partner or
general partners may be elected if the General Partner terminates or  liquidates
or  elects to withdraw from  the Partnership pursuant to  Section 12, or becomes
insolvent, bankrupt, or is dissolved; (v) any contracts with the General Partner
or any of its affiliates (as defined in the first sentence of Section 14(c)) may
be terminated without penalty  on not less than  60 days' prior written  notice;
and  (vi) the sale of all or substantially  all of the assets of the Partnership
may be approved; PROVIDED, HOWEVER, that  no such action shall adversely  affect
the  status of  the Limited Partners  as limited  partners under the  Act or the
classification of the Partnership as a partnership under the federal income  tax
laws;  and PROVIDED  FURTHER, that  Units owned by  the General  Partner and any
affiliate thereof  (as defined  in Section  14(c))  shall not  be voted  on  the
matters  described in clauses (iii)  and (v) above. Any  action which shall have
been approved by the percentage of  outstanding Units prescribed above shall  be
deemed to have been approved by all Limited Partners.
 
    (D)   ACTION WITHOUT  MEETING.  Notwithstanding  contrary provisions of this
Section 15 covering notices to, meetings of, and voting by Limited Partners, any
action required or permitted  to be taken  by Limited Partners  at a meeting  or
otherwise  may be  taken by  Limited Partners  without a  meeting, without prior
notice, and without a vote if a  consent in writing setting forth the action  so
taken shall be signed by Limited Partners owning Units having not fewer than the
minimum number of votes that
 
                                      A-19
<PAGE>
would  be necessary  to authorize or  take such  action at a  meeting of Limited
Partners at  which all  outstanding Units  shall have  been present  and  voted.
Notice  of the taking  of action by  Limited Partners without  a meeting by less
than unanimous  written consent  of Limited  Partners shall  be given  to  those
Limited  Partners who shall not have  consented in writing within seven business
days after the occurrence thereof.
 
    (E)  AMENDMENTS TO CERTIFICATE OF  LIMITED PARTNERSHIP.  If an amendment  to
this  Agreement shall be made  pursuant to this Section  15, the General Partner
shall be authorized to  execute, acknowledge, swear  to, deliver, file,  record,
and  publish, on behalf of the Partnership  and each Partner, such amendments to
the Certificate of  Limited Partnership as  shall be necessary  or desirable  to
reflect such amendment.
 
16.  ADDITIONAL OFFERINGS.
 
    The  General  Partner  may, in  its  discretion, make  additional  public or
private offerings of Units, PROVIDED, that  the net proceeds to the  Partnership
of  any such sales shall in no event be  less than the Net Asset Value of a Unit
at the time of sale, and PROVIDED  FURTHER, that such proceeds may be less  than
said  Net Asset Value per Unit if  the newly offered Units' participation in the
Partnership's profits  and losses  is  proportionately reduced.  Any  additional
offering of Units shall be effected in the manner contemplated in Section 6. The
Partnership  shall  not  pay the  costs  of  any such  offering  or  any selling
commissions relating  thereto. No  Limited Partner  shall have  any  preemptive,
preferential  or  other rights  with  respect to  the  issuance or  sale  of any
additional Units, except as described  in the applicable Prospectus. No  Limited
Partner  shall have  the right  to consent  to the  admission of  any additional
Limited Partner. The Partnership may offer  different classes of Units for  sale
having  different economic terms  than the Units previously  sold to the public,
provided that  the issuance  of such  new class  of Units  shall in  no  respect
adversely affect the holders of outstanding Units. There is no maximum aggregate
amount of contributions which may be received by the Partnership.
 
17.  GOVERNING LAW.
 
    THE  VALIDITY AND CONSTRUCTION  OF THIS AGREEMENT SHALL  BE GOVERNED BY, AND
CONSTRUED IN  ACCORDANCE WITH,  THE LAW  OF THE  STATE OF  DELAWARE,  INCLUDING,
SPECIFICALLY,  THE  ACT  (WITHOUT  REGARD  TO  ITS  CHOICE  OF  LAW PRINCIPLES);
PROVIDED, HOWEVER, THAT  CAUSES OF  ACTION FOR  VIOLATIONS OF  FEDERAL OR  STATE
SECURITIES LAWS SHALL NOT BE GOVERNED BY THIS SECTION 17.
 
18.  MISCELLANEOUS.
 
    (A)   PRIORITY AMONG LIMITED PARTNERS.  Except as otherwise specifically set
forth in this Agreement, no Limited Partner shall be entitled to any priority or
preference over  any other  Limited Partner  in  regard to  the affairs  of  the
Partnership.
 
    (B)   NOTICES.   All notices under  this Agreement (other  than Requests for
Redemption, notices  of assignment  or transfer  of Units,  and reports  by  the
General  Partner  to the  Limited Partners)  shall  be in  writing and  shall be
effective upon personal delivery  or, if sent by  registered or certified  mail,
postage  prepaid, addressed to the last known  address of the party to whom such
notice is to  be given, upon  the deposit of  such notice in  the United  States
mail.  Requests for  Redemption and notices  of assignment or  transfer of Units
shall be  effective  upon timely  receipt  by  the General  Partner.  Except  as
otherwise provided herein, all reports and notices hereunder shall be in writing
and  shall be delivered in person or sent  by first-class mail to the last known
address of the General Partner or the Limited Partner, as the case may be.
 
    (C)  BINDING EFFECT.  This Agreement  shall inure to the benefit of, and  be
binding upon, all of the parties, their successors, assigns as permitted herein,
custodians,  estates,  heirs,  and  personal  representatives.  For  purposes of
determining the rights of any Partner or assignee hereunder, the Partnership and
the General  Partner may  rely upon  the  Partnership's records  as to  who  are
Partners  and assignees, and all Partners  and assignees agree that their rights
shall be determined and that they  shall be bound thereby, including all  rights
that they may have under Section 15.
 
                                      A-20
<PAGE>
    (D)   CAPTIONS.  Captions  in no way define,  limit, extend, or describe the
scope of this Agreement nor the effect of any of its provisions.
 
    IN WITNESS WHEREOF, the  parties hereto have executed  this Agreement as  of
the day and year specified on the first page hereof.
 
<TABLE>
<S>                                           <C>
ADDITIONAL LIMITED PARTNERS:                  GENERAL PARTNER:
 
By:  Demeter Management                       DEMETER MANAGEMENT CORPORATION
    Corporation, General                      By:
    Partner, as Authorized                       Mark J. Hawley,
    Agent and Attorney-in-Fact                   President
By:
   Mark J. Hawley,
   President
</TABLE>
 
                                      A-21
<PAGE>
                                        ANNEX A TO LIMITED PARTNERSHIP AGREEMENT
 
<TABLE>
<S>                          <C>
MFAD USE ONLY:               CLOSING DATE:
</TABLE>
 
           REQUEST FOR REDEMPTION: DEAN WITTER MANAGED FUTURES FUNDS
 
THIS  IRREVOCABLE  REQUEST  FOR  REDEMPTION SHOULD  BE  DELIVERED  TO  A LIMITED
PARTNER'S LOCAL DEAN WITTER  BRANCH OFFICE AND MUST  BE RECEIVED BY THE  GENERAL
PARTNER (DEMETER MANAGEMENT CORPORATION, TWO WORLD TRADE CENTER, 62ND FLOOR, NEW
YORK,  NY 10048) AT LEAST 5 BUSINESS DAYS PRIOR TO THE LAST DATE OF THE MONTH IN
WHICH THE REDEMPTION IS TO BE EFFECTIVE. THIS FORM CANNOT BE FAXED.
__________________________, 19 _____
        [DATE]                [PRINT OR TYPE DEAN WITTER ACCOUNT NUMBER]
 
    I hereby request redemption (effective as of the next applicable date as  of
which  redemption is permitted as set forth in the Limited Partnership Agreement
of the Partnership for which redemption  is requested, subject to all terms  and
conditions  set forth therein) of  my capital account in  an amount equal to the
respective Net Asset Value, as defined in the Limited Partnership Agreement,  of
the  following  Unit(s)  of  Limited Partnership  Interest  ("Units"),  less any
amounts specified in the Limited Partnership Agreement.
 
                 COMPLETE ONLY ONE SECTION--A, B OR C--PER FORM
 
                                   SECTION A
 
  SPECTRUM SERIES SHALL ONLY REDEEM UNITS OF LIMITED PARTNERSHIP INTEREST IN A
                               MINIMUM AMOUNT OF
50 UNITS, UNLESS A LIMITED PARTNER IS REDEEMING HIS/HER ENTIRE INTEREST (ALL) IN
                               SUCH PARTNERSHIP.
 
<TABLE>
<S>                            <C>             <C>
[DWSB] Spectrum Balanced           Entire        Units
                                  Interest
[DWSS] Spectrum Strategic          Entire        Units
                                  Interest
[DWST] Spectrum Technical          Entire        Units
                                  Interest
</TABLE>
 
                                   SECTION B
 
  CORNERSTONE FUNDS SHALL ONLY REDEEM $1,000 INCREMENTS OR WHOLE UNITS UNLESS
      A LIMITED PARTNER IS REDEEMING HIS/HER ENTIRE INTEREST (ALL) IN SUCH
                                  PARTNERSHIP.
 
<TABLE>
<S>                              <C>             <C>        <C>
[CFCFB] Cornerstone Fund II          Entire        Units     $         ,000
                                    Interest
[CFCFC] Cornerstone Fund III         Entire        Units     $         ,000
                                    Interest
[CFCFD] Cornerstone Fund IV          Entire        Units     $         ,000
                                    Interest
</TABLE>
 
                                   SECTION C
 
 OTHER MANAGED FUTURES FUNDS SHALL ONLY REDEEM $1,000 INCREMENTS OR WHOLE UNITS
                                     UNLESS
      A LIMITED PARTNER IS REDEEMING HIS/HER ENTIRE INTEREST (ALL) IN SUCH
                                  PARTNERSHIP.
 
MARK ONE FUND ONLY (USE ONE FORM PER FUND):
 
<TABLE>
<S>                                  <C>                                         <C>
[CFF] Columbia Futures Fund          [PPF] Principal Plus Fund                   Entire Interest
[DFF] Diversified Futures Fund       [PSF] Portfolio Strategy Fund
[DFF2] Diversified Futures Fund II   [SFF] Select Futures Fund                   Units
[DFF3] Diversified Futures Fund III  [WCF] World Currency Fund
[GPP] Global Perspective Portfolio                                               $         ,000
[IAF] International Access Fund
[PGF] Multi-Market Portfolio
</TABLE>
 
                                      A-22
<PAGE>
                                    SPECIMEN
 
                       ACCOUNT INFORMATION AND SIGNATURES
 
I understand that I may only redeem Units at such times as are specified in  the
Limited  Partnership Agreement  and that, under  certain circumstances described
therein, I may be subject to a redemption charge.
 
I (either in  my individual capacity  or as an  authorized representative of  an
entity,  if applicable) hereby represent and warrant  that I am the true, lawful
and beneficial owner of Units (or  fractions thereof) to which this Request  for
Redemption  relates, with  full power and  authority to  request redemption. The
Units (or  fractions thereof)  which are  the subject  of this  request are  not
subject  to any pledge or otherwise encumbered  in any fashion. My signature has
been represented by a member of a registered national securities exchange.
 
      SIGNATURE MUST BE IDENTICAL TO NAME(S) IN WHICH UNITS ARE REGISTERED
                      TYPE OR PRINT ALL INFORMATION BELOW
- --------------------------------------------------------------------------------
1. ACCOUNT INFORMATION
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                 <C>
 .................................................  ..................................................
                  [Name of Limited Partner]                    [Dean Witter Account Number]
 
Address  .............................................................................................
                                                                      [Street]
</TABLE>
 
 ...............................................................................
      [City]            [State or Province]            [Zip Code or Postal Code]
 
- --------------------------------------------------------------------------------
2. SIGNATURE(S) OF INDIVIDUAL PARTNER(S) OR ASSIGNEE[S] INCLUDING IRAS
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                       <C>
X ......................................................  X ......................................................
                                         Date                                       Date
X ......................................................  X ......................................................
                                         Date                                       Date
</TABLE>
 
We, the undersigned  Account Executive  and Branch Manager,  represent that  the
above signature(s) is true and correct.
 
<TABLE>
<S>                                                 <C>
X ................................................  X ................................................
      (Account Executive MUST sign and date)               (Branch Manager MUST sign and date)
</TABLE>
 
- --------------------------------------------------------------------------------
3. SIGNATURE OF ENTITY PARTNER OR ASSIGNEE
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                               <C>
 ...............................................  By: X ..........................................
                       (Name of Entity)               [Authorized officer, partner, trustee or
                                                        custodian. If a corporation, include
                                                     certified copy of authorized resolution.]
</TABLE>
 
We,  the undersigned  Account Exeuctive and  Branch Manager,  represent that the
above signature is true and correct.
 
<TABLE>
<S>                                               <C>
X ..............................................  X ..............................................
     (Account Executive MUST sign and date)             (Branch Manager MUST sign and date)
 
 ...............................................
           [Branch Telephone Number]
</TABLE>
 
                                      A-23
<PAGE>
                                                                       EXHIBIT B
 
                         DEAN WITTER PORTFOLIO STRATEGY
                                   FUND L.P.
                    SUBSCRIPTION AND EXCHANGE AGREEMENT AND
                               POWER OF ATTORNEY
                                 --------------
 
                     UNITS OF LIMITED PARTNERSHIP INTEREST
 
    Subscribers who are redeeming units in another commodity pool for which the
General Partner serves as the general partner and commodity pool operator
("Exchange Subscribers") should follow the instructions below, including those
labeled "For Exchange Suscribers Only."
 
                           SUBSCRIPTION INSTRUCTIONS
 
    Any person desiring to subscribe for Units should carefully read and review
the Prospectus dated         , 1997 and this Subscription and Exchange Agreement
and Power of Attorney.
 
    NON-EXCHANGE SUBSCRIBERS MUST FILL IN ALL OF THE BOXES AND BLANKS ONLY ON
PAGES B-9 AND B-10, AND EXCHANGE SUBSCRIBERS MUST FILL IN ALL OF THE BOXES AND
BLANKS ONLY ON PAGES B-11 and B-12, USING BLACK INK, AS FOLLOWS:
 
<TABLE>
<S>        <C>        <C>
Item 1        --      Enter Dean Witter Reynolds Inc. ("DWR") Account Number.
 
              --      FOR NON-EXCHANGE SUBSCRIBERS ONLY -- Enter the dollar amount of the
                      subscription.
 
              --      Enter the Social Security Number or Taxpayer ID Number and check the
                      appropriate box to indicate the type of entity that is subscribing. In case of
                      joint ownership, either Social Security Number may be used.
 
              --      Subscriber(s) must (i) if a United States taxable Subscriber(s), review the
                      representation relating to backup withholding tax under "United States Taxable
                      Investors Only" on Page B-9 (for Non-Exchange Subscribers) or Page B-11 (for
                      Exchange Subscribers) or (ii) if a non-United States Subscriber, review the
                      representation relating to such Subscriber's classification as a non-resident
                      alien for United States federal income tax purposes under "Non-United States
                      Investors Only" on Page B-9 (for Non-Exchange Subscribers) or Page B-11 (for
                      Exchange Subscribers). THE SUBSCRIBER(S) MUST SIGN BELOW TAX REPRESENTATION IN
                      ITEM 1.
 
              --      Enter the exact name in which the Units are to be held based on ownership type,
                      and enter residency and other information.
 
              --      Enter taxable year of Subscriber, if other than calendar year.
 
              --      Check box if the Subscriber is a non-resident alien that is a dealer in
                      commodities or is otherwise engaged in a trade or business within the U.S.
 
              --      If there is a Co-Subscriber, Trustee or Custodian, complete applicable
                      information.
 
              --      Subscriber purchasing Units as custodian for a minor: (i) if a gift to minor
                      not made with minor's funds, net worth and annual income representations apply
                      only to Subscriber or (ii) if not a gift, net worth and annual income
                      representations apply only to such minor.
</TABLE>
 
                                      B-1
<PAGE>
<TABLE>
<S>        <C>        <C>
              --      Subscriber purchasing Units as a trustee or custodian of an employee benefit
                      plan with an individual beneficiary or of an individual retirement account
                      ("IRA") at the direction of the beneficiary of such plan or IRA: net worth and
                      annual income representations apply only to the beneficiary of such plan or
                      account.
</TABLE>
 
Item 1A FOR EXCHANGE SUBSCRIBERS ONLY
 
<TABLE>
<S>        <C>        <C>
              --      Enter the symbol and name of the limited partnership from which units are to be
                      redeemed; specify the quantity to be redeemed.
</TABLE>
 
Item 2 FOR NON-EXCHANGE SUSCRIBERS ONLY
 
<TABLE>
<S>        <C>        <C>
              --      Subscriber(s) must execute the Subscription and Exchange Agreement and Power of
                      Attorney Signature Page (Item 2 Page B-10).
</TABLE>
 
Item 2 FOR EXCHANGE SUBSCRIBERS ONLY
 
<TABLE>
<S>        <C>        <C>
              --      Subscriber(s) must execute the Subscription and Exchange Agreement and Power of
                      Attorney Signature Page (Item 2 Page B-12).
 
Item 3        --      Account Executive and Branch Manager must complete the required information.
 
              --      This Subscription and Exchange Agreement and Power of Attorney must be mailed
                      to Dean Witter Reynolds Inc. at Two World Trade Center, 62nd Floor, New York,
                      New York 10048.
</TABLE>
 
                                      B-2
<PAGE>
                         DEAN WITTER PORTFOLIO STRATEGY
                                   FUND L.P.
                                  ------------
 
           SUBSCRIPTION AND EXCHANGE AGREEMENT AND POWER OF ATTORNEY
 
    Any person subscribing for Units should carefully read and review the
Prospectus. Capitalized terms used below and not defined in this Agreement are
defined (and described in detail) in the Prospectus.
 
    FOR NON-EXCHANGE SUBSCRIBERS ONLY:  By executing the Signature Page of this
Subscription and Exchange Agreement and Power of Attorney ("Agreement") for Dean
Witter Portfolio Strategy Fund L.P. (the "Partnership"), the undersigned
Subscriber ("Subscriber") irrevocably subscribes for Units of Limited
Partnership Interest in the Partnership ("Units") at the price per Unit
described in the Partnership's Prospectus dated         , 1997 (the
"Prospectus").
 
    FOR EXCHANGE SUBSCRIBERS ONLY:  By executing the Signature Page of this
Subscription and Exchange Agreement and Power of Attorney ("Agreement"), the
undersigned Subscriber ("Subscriber") irrevocably redeems the units of limited
partnership interest in the limited partnership indicated on the signature page
of this Agreement and, with the proceeds of such redemption, hereby irrevocably
subscribes for Units of Limited Partnership Interest ("Units") in Dean Witter
Portfolio Strategy Fund L.P. (the "Partnership"), at the price per Unit
described in the Partnership's Prospectus dated         , 1997.
 
    NOTWITHSTANDING THE FOREGOING, SUBSCRIBER MAY REVOKE THIS AGREEMENT, AND
RECEIVE A FULL REFUND OF THE SUBSCRIPTION AMOUNT AND ANY ACCRUED INTEREST
THEREON (OR REVOKE THE REDEMPTION OF UNITS IN THE OTHER LIMITED PARTNERSHIP IN
THE CASE OF AN EXCHANGE), WITHIN FIVE BUSINESS DAYS AFTER EXECUTION OF THIS
AGREEMENT OR NO LATER THAN 3:00 P.M., NEW YORK CITY TIME, ON THE DATE OF THE
CLOSING, WHICHEVER COMES FIRST, BY DELIVERING WRITTEN NOTICE TO SUBSCRIBER'S DWR
ACCOUNT EXECUTIVE. If this Agreement is accepted, Subscriber agrees to
contribute Subscriber's subscription to the Partnership and to be bound by the
terms of the Partnership's Limited Partnership Agreement, included as Exhibit A
to the Prospectus (the "Limited Partnership Agreement"). The undersigned
Subscriber hereby authorizes and directs Demeter Management Corporation (the
"General Partner") and DWR to transfer the appropriate amount from the Customer
Account to the Escrow Account. BY EXECUTION OF THE SIGNATURE PAGE ATTACHED
HERETO, SUBSCRIBER SHALL BE DEEMED TO HAVE EXECUTED THIS AGREEMENT AND THE
LIMITED PARTNERSHIP AGREEMENT (INCLUDING THE POWERS OF ATTORNEY HEREIN AND
THEREIN).
- --------------------------------------------------------------------------------
PAYMENT INSTRUCTIONS
- --------------------------------------------------------------------------------
 
    FOR NON-EXCHANGE SUBSCRIBERS ONLY:  Payment of this subscription must be
made by charging the Customer Account. In the event that the Subscriber does not
have a Customer Account or does not have sufficient funds in Subscriber's
existing Customer Account, the Subscriber should make appropriate arrangements
with Subscriber's DWR account executive, if any, and if none, should contact
Subscriber's local DWR branch office. Payment must NOT be mailed to the General
Partner at its offices in New York City. Any such payment will not be accepted
by the General Partner and will be returned to the Subscriber for proper
placement with the DWR branch office where Subscriber's Customer Account is
maintained. The undersigned Subscriber hereby authorizes and directs the General
Partner and DWR to transfer the appropriate amount from the Customer Account to
the Escrow Account.
 
    FOR EXCHANGE SUBSCRIBERS ONLY:  Payment of this subscription must be made by
applying the proceeds from a redemption of limited partnership units in another
commodity pool for which the General Partner serves as the general partner and
commodity pool operator. Subscriber may only redeem units at such times as are
specified in the applicable limited partnership agreement for such other
commodity pool, and under certain circumstances described therein Subscriber may
be subject to a redemption charge.
 
                                      B-3
<PAGE>
- --------------------------------------------------------------------------------
REPRESENTATIONS AND WARRANTIES
- --------------------------------------------------------------------------------
 
    Subscriber (for myself/ourselves, and, if Subscriber is an entity, on behalf
of and with respect to such entity and its shareholders, partners, or
beneficiaries) hereby represents and warrants to the General Partner and the
Partnership as follows:
 
        (1) Subscriber has received a copy of the Prospectus, which includes the
    Limited Partnership Agreement.
 
        (2) Subscriber is of legal age to execute this Agreement and is legally
    competent to do so.
 
        (3) Subscriber has either: (a) net worth of at least $75,000 (exclusive
    of home, furnishings, and automobiles); or (b) net worth of at least $30,000
    (exclusive of home, furnishings, and automobiles) and annual gross income of
    at least $30,000. However, if Subscriber is a resident and/ or subject to
    regulation by one of the states which imposes more restrictive suitability
    requirements than the foregoing, or requires a higher minimum investment, as
    set forth below under the caption "State Suitability Requirements" (or in
    the special Supplement to the Prospectus for residents of the state in which
    Subscriber resides), Subscriber's net worth and/or income and investment
    satisfies the requirements of such state. (If Units are being purchased by
    spouses as joint owners, their joint net worth and annual income may be used
    to satisfy applicable state suitability requirements.) Subscriber agrees to
    provide any additional documentation requested by the General Partner, as
    may be required by the securities administrators of certain states to
    confirm that Subscriber meets the applicable minimum financial suitability
    standards to invest in the Partnership.
 
        (4) The address set forth on the Signature Page is Subscriber's true and
    correct residence and Subscriber has no present intention of becoming a
    resident of any other state or country. All the information that is provided
    on the Signature Page regarding Subscriber is correct and complete as of the
    date of this Agreement, and, if there should be any material change in such
    information prior to Subscriber's admission as a Limited Partner, Subscriber
    will immediately furnish such revised or corrected information to the
    General Partner.
 
        (5) If Subscriber is an employee benefit plan, to the best of
    Subscriber's knowledge, neither the General Partner, DWR, the Trading
    Advisor, nor any of their respective affiliates either: (a) has investment
    discretion with respect to the investment of Subscriber's plan assets; (b)
    has authority or responsibility to or regularly gives investment advice with
    respect to such plan assets for a fee and pursuant to an agreement or
    understanding that such advice will serve as a primary basis for investment
    decisions with respect to such plan assets and that such advice will be
    based on the particular investment needs of the plan; or (c) is an employer
    maintaining or contributing to such plan. For purposes hereof, an "employee
    benefit plan" shall include plans and accounts of various types (including
    their related trusts) which provide for the accumulation of a portion of an
    individual's earnings or compensation as well as investment income earned
    thereon free from federal income tax until such time as funds are
    distributed from the plan, and include corporate "pension" and
    profit-sharing plans, "simplified employee pension plans," "Keogh" plans for
    self-employed individuals, and IRAs.
 
        (6) Unless (7) or (8) below is applicable, Subscriber's subscription is
    made with Subscriber's funds for Subscriber's own account and not as
    trustee, custodian, or nominee for another.
 
        (7) The subscription, if made as custodian for a minor, is a gift
    Subscriber has made to such minor and is not made with such minor's funds
    or, if not a gift, the representations as to net worth and annual income set
    forth herein apply only to such minor.
 
        (8) If Subscriber is subscribing as a trustee or custodian of an
    employee benefit plan or of an IRA at the direction of the beneficiary of
    the plan or IRA, the representations set forth above apply only to the
    beneficiary of such plan or IRA.
 
                                      B-4
<PAGE>
        (9) If Subscriber is subscribing in a representative capacity,
    Subscriber has full power and authority to purchase the Units and enter into
    and be bound by this Agreement on behalf of the entity for which Subscriber
    is purchasing the Units, and such entity has full right and power to
    purchase such Units and enter into and be bound by this Agreement and become
    a Limited Partner pursuant to the Limited Partnership Agreement.
 
ADDITIONAL REPRESENTATION AND WARRANTY FOR EXCHANGE SUBSCRIBERS ONLY:
 
        (10) Subscriber is the true, lawful, and beneficial owner of the units
    of limited partnership interest (or fractions thereof) to be redeemed
    pursuant to this Agreement, with full power and authority to request
    redemption and a subsequent purchase of Units. The units of limited
    partnership interest (or fraction thereof) which are the subject of this
    redemption request are not subject to any pledge or otherwise encumbered in
    any fashion.
 
    By making the representations and warranties set forth above, Subscribers
should be aware that they have not waived any rights of action which they may
have under applicable federal or state securities laws. Federal and state
securities laws provide that any such waiver would be unenforceable. Subscribers
should be aware, however, that the representations and warranties set forth
above may be asserted in the defense of the Partnership, the General Partner,
the Trading Advisor, DWR, or others in any subsequent litigation or other
proceeding.
- --------------------------------------------------------------------------------
STATE SUITABILITY REQUIREMENTS
- --------------------------------------------------------------------------------
 
    Except as indicated below, investors in the Partnership must have a net
worth (exclusive of home, furnishings, and automobiles) of at least $75,000 or,
failing that standard, have a net worth (same exclusions) of at least $30,000
and an annual gross income of at least $30,000, and must make a minimum
aggregate investment of $5,000, or $2,000 in the case of IRAs, or, in the case
of an Exchange, the lesser of (i) $5,000 ($2,000 in the case of an IRA), (ii)
the proceeds from the redemption of five units (two units in the case of an IRA)
from commodity pools other than the Spectrum Series, (iii) the proceeds from the
redemption of 500 units (200 units in the case of an IRA) from one, or any
combination, of the Spectrum Series of commodity pools, or (iv) the proceeds
from the redemption of all of the Subscriber's units of limited partnership
interest in any other commodity pool for which the General Partner serves as
general partner and commodity pool operator. However, the states listed below
(or, in certain cases, in special Supplements to the Prospectus attached
thereto) have more restrictive suitability or minimum investment requirements
for Subscribers residing therein. Please read the following list to make sure
that Subscriber meets the suitability and/or investment requirements for the
state in which Subscriber resides. (As used below, "NW" means net worth
exclusive of home, furnishings, and automobiles; "AI" means annual gross income;
"TI" means annual taxable income for federal income tax purposes; "Existing LPs"
means Subscribers who first became Limited Partners of the Partnership prior to
        , 1997; and "New LPs" means Subscribers (including those effecting
Exchanges) who are not Existing LPs.)
 
                                      B-5
<PAGE>
                                [TO BE PROVIDED]
 
                                      B-6
<PAGE>
- --------------------------------------------------------------------------------
SIGNIFICANT DISCLOSURES
- --------------------------------------------------------------------------------
 
    Subscriber should read the Prospectus in its entirety before completing this
Agreement and subscribing for Units, and should carefully consider the
information contained therein as well as the following information (which is set
forth in detail in the Prospectus) concerning an investment in the Partnership:
 
        (1) The General Partner and DWR, the commodity broker, are each wholly
    owned subsidiaries of Dean Witter, Discover & Co., and conflicts of interest
    therefore exist. The principal business address of the General Partner is
    Two World Trade Center, 62nd Floor, New York, New York 10048.
 
        (2) DWR will receive substantial commodity brokerage commissions and
    certain transaction fees and costs from the Partnership, and will also
    realize the benefits of excess interest earned on the Partnership's funds
    and compensating balance benefits from deposits of the Partnership's funds,
    subject to certain limitations, as described in the Prospectus. A Limited
    Partner will consent to the execution and delivery by the General Partner on
    behalf of the Partnership of the Customer Agreement with DWR, and to the
    payment to DWR of such commissions, fees, costs, and benefits.
 
        (3) The performance information in the Prospectus should be read only in
    conjunction with the textual description and notes thereto, and such data
    should not be interpreted to mean that the Partnership will have similar
    results or will realize any profits whatsoever. A Limited Partner will be
    deemed to have consented to the execution and delivery by the General
    Partner on behalf of the Partnership of the Management Agreement with the
    Trading Advisor (as described in the Prospectus), and with such other
    trading advisors as the General Partner may retain from time to time.
 
        (4) Units cannot be transferred or assigned except as set forth in the
    Limited Partnership Agreement. Units may be redeemed at the option of a
    Limited Partner as of, but not before, the sixth month end following the
    Closing. Thereafter, Units may be redeemed as of the end of any month.
    However, any Units redeemed at the end of the sixth or at or prior to the
    end of the twelfth, eighteenth, or twenty-fourth month following the Closing
    will be assessed a redemption charge equal to 3%, 2% or 1%, respectively, of
    the Net Asset Value of a Unit on the date of such redemption. The foregoing
    charges will be paid to DWR. A limited partner in any of the other commodity
    pools for which the General Partner serves as the general partner and
    commodity pool operator who redeemed all or a portion of his interest in one
    of such other partnerships on or after June 30, 1996, and purchases Units
    will not be subject to the foregoing redemption charges or restrictions
    under the circumstances described below. The number of Units, expressed as a
    percentage of Units purchased, which are not subject to a redemption charge
    is determined by dividing (a) the dollar amount received upon redeeming an
    interest in such other partnership and used to purchase Units by (b) the
    total investment in the Partnership. Subscribers who purchase $500,000 or
    more of Units will not be subject to the redemption charges described above.
    Similarly, investors who are Limited Partners in the Partnership immediately
    prior to the Closing will not be subject to the minimum six-month holding
    period or the redemption charges, as described above, with respect to Units
    purchased during the Offering Period. Units may only be redeemed upon 5
    business days' written notice to the General Partner prior to the effective
    date of a redemption, which will be the last day of a calendar month.
 
        (5) All subscriptions are subject to acceptance or rejection by the
    General Partner in whole or in part for any reason and are irrevocable by
    Subscribers, subject to the limited revocation right described on page 3 of
    this Agreement.
- --------------------------------------------------------------------------------
ACCEPTANCE OF THE LIMITED PARTNERSHIP AGREEMENT
- --------------------------------------------------------------------------------
 
    Subscriber hereby agrees that as of the date that Subscriber's name is
entered on the books of the Partnership, Subscriber shall become a Limited
Partner of the Partnership. Subscriber hereby agrees to each and every term of
the Limited Partnership Agreement as if Subscriber's signature were subscribed
 
                                      B-7
<PAGE>
thereto. Subscriber further agrees that DWR may receipt on Subscriber's behalf
for the Units purchased by Subscriber hereunder upon the issuance of such Units
by the Partnership (although no certificate evidencing Unit(s) will be issued to
Subscriber).
- --------------------------------------------------------------------------------
POWER OF ATTORNEY AND GOVERNING LAW
- --------------------------------------------------------------------------------
 
    Subscriber hereby irrevocably constitutes and appoints Demeter Management
Corporation, the General Partner of the Partnership, as Subscriber's true and
lawful Attorney-in-Fact, with full power of substitution, in Subscriber's name,
place, and stead, to do all things necessary to admit Subscriber as a Limited
Partner of the Partnership and to admit others as additional or substituted
Limited Partners to the Partnership so long as such admission is in accordance
with the terms of the Limited Partnership Agreement or any amendment thereto, to
file, prosecute, defend, settle, or compromise any and all actions at law or
suits in equity for or on behalf of the Partnership in connection with any
claim, demand, or liability asserted or threatened by or against the
Partnership, and to execute, acknowledge, swear to, deliver, file, and record on
Subscriber's behalf and as necessary in the appropriate public offices, and
publish: (a) the Limited Partnership Agreement and the Certificate of Limited
Partnership and all amendments thereto permitted by the terms thereof; (b) all
instruments that the General Partner deems necessary or appropriate to reflect
any amendment, change, or modification of the Limited Partnership Agreement or
the Certificate of Limited Partnership made in accordance with the terms of the
Limited Partnership Agreement; (c) certificates of assumed name; and (d) all
instruments that the General Partner deems necessary or appropriate to qualify
or maintain the qualification of the Partnership to do business as a foreign
limited partnership in other jurisdictions. Subscriber agrees to be bound by any
representation made by the General Partner or any successor thereto acting in
good faith pursuant to this Power of Attorney.
 
    The Power of Attorney granted hereby shall be deemed to be coupled with an
interest and shall be irrevocable and survive the death, incapacity,
dissolution, liquidation, or termination of the Subscriber.
 
    THIS SUBSCRIPTION AND EXCHANGE AGREEMENT AND POWER OF ATTORNEY SHALL BE
GOVERNED BY AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
YORK; PROVIDED, HOWEVER, THAT THIS PROVISION SHALL NOT BE DEEMED A WAIVER OF ANY
RIGHTS OF ACTION SUBSCRIBER MAY HAVE UNDER APPLICABLE FEDERAL OR STATE
SECURITIES LAW.
- --------------------------------------------------------------------------------
RECEIPT OF DOCUMENTATION
- --------------------------------------------------------------------------------
 
    The regulations of the Commodity Futures Trading Commission require that the
undersigned Subscriber be given a copy of the Prospectus (which includes the
most current annual report for the Partnership), as well as certain additional
documentation consisting of: (a) a supplement to the Prospectus, which must be
given to the undersigned if the Prospectus is dated more than nine months prior
to the date that the undersigned first receives the Prospectus, and (b) the most
current monthly account statement for the Partnership, which must be distributed
within 30 calendar days after the end of each month. The undersigned hereby
acknowledges receipt of the Prospectus and the additional documentation referred
to above, if any.
 
                                      B-8
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                     UNITS OF LIMITED PARTNERSHIP INTEREST
                SIGNATURE PAGE FOR NON-EXCHANGE SUBSCRIBERS ONLY
                   PLEASE PRINT OR TYPE. USE BLACK INK ONLY.
    This request for subscription should be delivered to the local Dean Witter
Branch Office and must be received by the General Partner at least five business
days prior to the Closing.
    The Subscriber named below, by execution and delivery of this Signature Page
and by payment of the purchase price for Units of
Limited Partnership Interest ("Units") in Dean Witter Portfolio Strategy Fund
L.P. (the "Partnership"), hereby subscribes for Units at the Closing, at a price
equal to 100% of the Net Asset Value as of the close of business on the last day
of the month immediately preceding such Closing, all as described in the
Prospectus. Unless otherwise provided under "State Suitability Requirements" or
in a Supplement attached to the Prospectus, the minimum investment in the
Partnership is $5,000 or $2,000 in the case of IRAs. Existing Limited Partners
who desire to make an additional investment in the Partnership may subscribe for
Units at the Closing with a minimum investment of $1,000.
 
    BY SUCH EXECUTION AND PAYMENT, THE SUBSCRIBER ACKNOWLEDGES RECEIPT OF THE
PROSPECTUS OF THE PARTNERSHIP DATED               , 1997, INCLUDING THE LIMITED
PARTNERSHIP AGREEMENT, THE TERMS OF WHICH GOVERN THE INVESTMENT IN THE UNITS
BEING SUBSCRIBED FOR HEREBY, AND THE CURRENT MONTHLY REPORT FOR THE PARTNERSHIP.
 
- --------------------------------------------------------------------------------
ITEM 1 -- SUBSCRIBER (SUBSCRIBER MUST SIGN BELOW TAX REPRESENTATION)
- --------------------------------------------------------------------------------
 
<TABLE>
<S>            <C>                                               <C>                        <C><C>                               <C>
DWR ACCOUNT NO.                                                            P S F            $                                    .00
</TABLE>
 
<TABLE>
<CAPTION>
                             -                      AMOUNT OF SUBSCRIPTION
<S>                                  <C>  <C>                                  <C>  <C>
TAXABLE INVESTORS                                                                   NON-TAXABLE INVESTORS
 / / / / / / -- / / / / -- / / / / / / / / OR  /  / / / -- / / / /  / / / / / / / / / OR / / / / / / / / / / / / / / / / / / / / / /
 
Social Security Number of: (check one)    Taxpayer ID Number for: (check one)     Soc. Sec. #/Taxpayer ID # for: (check
                                                                                                                   one)
/ / Individual Ownership                  / /Trust other than Grantor or            / /IRA (the DWR Branch Manager must
                                                 Revocable Trust                           sign below for IRA accounts)
/ /Joint Tenants with Rights of
       Survivorship                       / / Estate                                / /Employee Benefit Plan
                                                                                    (Participant
/ / Tenants in Common                     / /UGMA/UTMA (Minor)                             Directed)
/ / Community Property                    / / Partnership                           / / Defined Benefit Plan (Other)
/ /Grantor or other Revocable Trust       / / Corporation                           / / Other (specify)
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
- -- -- --
</TABLE>
 
<TABLE>
<S>                                                      <C>   <C>
 UNITED STATES TAXABLE INVESTORS ONLY:                   OR     NON-UNITED STATES INVESTORS ONLY:
 / /  Check box  if Subscriber  is subject  to  backup          Under  penalties of perjury,  by signature below, the
     withholding  under  the  provisions  of   Section          Subscriber  certifies  that  such  Subscriber  is NOT
     3406(a)(1)(C)  of  the  Internal  Revenue   Code.          (a)   a   citizen   or   resident   of   the   United
If Subscriber's taxable year is other than the calendar            States;
 year, indicate the date on which                               (b) or,  a  United States  corporation,  partnership,
    Subscriber's taxable year                                       estate or trust.
 ends  ...............................................
 Under  penalties  of  perjury,  by  signing  below, I
 certify that the Social Security Number (or  Taxpayer
 ID Number) above to be the true, correct and complete
 Social  Security Number  (or Taxpayer  ID Number) and
 that all the information  above is true, correct  and
 complete.
</TABLE>
 
<TABLE>
<S>                        <C>                                                                     <C>              <C>
X ...............................................................................................  ...............  ..........
(Signature of Subscriber or Officer, Partner or Trustee [or Branch Manager in the case of IRAs])   Date
If Subscriber is an        Type or Print Name of Entity: .........................................................
Entity:
                           Name: ................................................................  Date: .........
                           Title: ................................................................................
 
Full Name of Account..............................................................................................
                           (Subscriber's Name or Name of Trust or Custodial Account--do not use initials)
 
Subscriber is a resident of  ........................  and a citizen of  ........................
                           (name of country)                            (name of country)
 
Street Address ...................................................................................................
                           (MUST be residence address--P.O. Box alone not acceptable)
 
City  ...................  State  .............  Zip Code  .............  Tel. No. ( ............. )  ............
</TABLE>
 
/ / Check here if Subscriber is a non-resident alien individual, foreign
corporation, foreign partnership, foreign trust or foreign estate
that is a dealer in commodities or otherwise engaged in a trade or business
within the U.S.A. to which income, gain or loss from the
Partnership would be treated as effectively connected. (Subscriber must complete
Form W-8 which may be obtained from DWR AE.)
 
                                      B-9
<PAGE>
COMPLETE, IF APPLICABLE (MUST BE COMPLETED IF THERE IS A CO-SUBSCRIBER, TRUSTEE
                                 OR CUSTODIAN):
 
<TABLE>
<S>                                                    <C>
Name .................................................. Telephone Number ( ................. ) ................
The person or entity above is a/an (check one)
</TABLE>
 
<TABLE>
<S>                                  <C>                                  <C>
 / / Co-Subscriber                    / / Trustee or Custodian             / / Authorized Person, if an
                                                                           Institutional Trustee
</TABLE>
 
Street Address .................................................................
 
                               (P. O. Box alone not acceptable)
 
<TABLE>
<S>                                                           <C>
City .......................................................  State  .....................  Zip Code  ....................
 
Co-Subscriber, Trustee or Custodian is a resident of .......  and a citizen of ...........................................
 
Minor (if not a gift) is a resident of .....................  and a citizen of ...........................................
</TABLE>
 
- --------------------------------------------------------------------------------
ITEM 2 -- SIGNATURE(S)--SUBSCRIBER(S) MUST SIGN UNDER TAX REPRESENTATION ON
PRECEDING PAGE AND BELOW
- --------------------------------------------------------------------------------
 
(INDIVIDUAL OR JOINT SUBSCRIPTION, INCLUDING PARTICIPANT-DIRECTED EMPLOYEE
BENEFIT PLAN OR IRA SUBSCRIPTION)
 
If  this  subscription  is  for  a  joint  or  community  property  account, the
statements, representations, and warranties set  forth in this Subscription  and
Exchange  Agreement and Power of  Attorney shall be deemed  to have been made by
each owner of the account.
 
*    If  the Units  will be  owned by  joint owners,  tenants in  common, or  as
community property, signatures of all owners are required.
 
*   In the case of a participant-directed employee benefit plan or IRA, the
    beneficiary must sign immediately below and the trustee or custodian must
    sign below under "Entity Subscription".
 
<TABLE>
<S>                                             <C>              <C>                                             <C>
X .............................................................  X .............................................................
(Signature of Subscriber)                       Date             (Signature of Co-Subscriber)                    Date
</TABLE>
 
(ENTITY SUBSCRIPTION)
 
ACCEPTANCE  OF SUBSCRIPTION ON BEHALF OF EMPLOYEE BENEFIT PLANS (INCLUDING IRAS)
IS IN  NO RESPECT  A REPRESENTATION  BY THE  GENERAL PARTNER  OR DWR  THAT  THIS
INVESTMENT  MEETS ALL RELEVANT LEGAL REQUIREMENTS WITH RESPECT TO INVESTMENTS BY
ANY PARTICULAR PLAN, OR THAT THIS  INVESTMENT IS APPROPRIATE FOR ANY  PARTICULAR
PLAN.
 
The  undersigned  corporate officer,  partner  or trustee  hereby  certifies and
warrants that s/he has full power and authority from or on behalf of the  entity
named  below  and  its  shareholders, partners,  or  beneficiaries  to complete,
execute and  deliver  this Subscription  and  Exchange Agreement  and  Power  of
Attorney  on  their  behalf and  to  make the  statements,  representations, and
warranties made herein on their behalf,  and that investment in the  Partnership
is  authorized under applicable  law and the governing  documents of the entity,
has been affirmatively authorized by the governing board or body, if any, of the
entity, and is legally permissible.
 
<TABLE>
<S>                             <C>
 .............................  X  ...........................
(Type or Print Name of Entity)  (Signature)                                                          Date
 
Print Name  ..................  Title  .......................
</TABLE>
 
- --------------------------------------------------------------------------------
ITEM 3 -- BRANCH MANAGER AND ACCOUNT EXECUTIVE USE ONLY (COMPLETED IN FULL AND
IN INK)
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                         <C>
 THE  UNDERSIGNED ACCOUNT EXECUTIVE  HEREBY CERTIFIES THAT:    THE ACCOUNT EXECUTIVE MUST SIGN BELOW IN ORDER TO
 (1) s/he has informed  the Subscriber about the  liquidity    SUBSTANTIATE COMPLIANCE WITH NASD CONDUCT RULE 2810.
     and  marketability of  the Units  as set  forth in the    X ........................................................
     Prospectus;                                                                 Account Executive's Signature
 (2) based  on  information obtained  from  the  Subscriber    ..........................................................
     concerning  this  Subscriber's  investment objectives,             Type or  Print  Full Name  of  Account  Executive
     other  investments, financial situation, needs and any    Telephone
     other  relevant  information,  that  s/he   reasonably    Number  ( ............. ) ...................................
     believes that:                                            THE  UNDERSIGNED  BRANCH  MANAGER  HEREBY  CERTIFIES THAT:
   (a) such Subscriber is or will be in a financial position   (1)  the  above  signature(s)  is/are  true  and  correct.
       appropriate to enable such Subscriber to realize the    (2) the above client(s) is/are suitable.
       benefits  of  the  Partnership as  described  in the    X  .......................................................
 Prospectus;                                                   Branch Manager's Signature
   (b) such Subscriber has a net worth sufficient to sustain    .........................................................
       the risk inherent in the Partnership (including loss    Type or Print Full Name of Branch Manager
       of  investment   and   lack   of   liquidity);   and
   (c)  the Partnership is  otherwise a suitable investment
       for such Subscriber; and
</TABLE>
 
                                      B-10
<PAGE>
                    DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                  SIGNATURE PAGE FOR EXCHANGE SUBSCRIBERS ONLY
                   PLEASE PRINT OR TYPE. USE BLACK INK ONLY.
    This request for redemption and exchange should be delivered to the local
Dean Witter Branch Office and must be received by the General Partner at least
five business days prior to the Closing.
    The Subscriber named below, by execution and delivery of this Signature
Page, hereby redeems the units of limited partnership interest of the limited
partnership named in Item 1A below and, by application of the proceeds of such
redemption to the payment of the purchase price for Units of Limited Partnership
Interest ("Units") in Dean Witter Portfolio Strategy Fund L.P. ("PSF" or the
"Partnership"), hereby subscribes for Units at the Closing, at a price equal to
100% of the Net Asset Value as of the close of business on the last day of the
month immediately preceding such Closing, all as described in the Prospectus.
    BY SUCH EXECUTION AND PAYMENT, THE SUBSCRIBER ACKNOWLEDGES RECEIPT OF THE
PROSPECTUS OF THE PARTNERSHIP DATED            , 1997, INCLUDING THE LIMITED
PARTNERSHIP AGREEMENT, THE TERMS OF WHICH GOVERN THE INVESTMENT IN THE UNITS
BEING SUBSCRIBED FOR HEREBY, AND THE CURRENT MONTHLY REPORT FOR THE PARTNERSHIP.
 
<TABLE>
<S>        <C>                                        <C>        <C>                                        <C>
</TABLE>
 
- --------------------------------------------------------------------------------
ITEM 1 -- SUBSCRIBER (SUBSCRIBER MUST SIGN BELOW TAX REPRESENTATION)
- --------------------------------------------------------------------------------
 
<TABLE>
<S>            <C>
DWR ACCOUNT NO.
</TABLE>
 
                                -
- --------------------------------------------------------------------------------
ITEM 1A -- REDEMPTION AND SUBSCRIPTION
- --------------------------------------------------------------------------------
 
The price per Unit of the Partnership equals 100% of the Net Asset Value of a
Unit as of the close of business on the last day of the month immediately
preceding the applicable Closing.
 
ENTER SYMBOL FOR FUND BEING REDEEMED BELOW
 
<TABLE>
<S>                                                                                <C>
SPECIFY QUANTITY OF UNITS TO BE REDEEMED (CHECK BOX AND INSERT NUMBER,
 TO BE REDEEMED IF APPLICABLE)
</TABLE>
 
/ / / / / / / / / /                            / /  Entire Interest OR / / Whole
Units
- -
- ---------------
- ---------------
- - to
- -  P S F
- -
- ----------
- ----------
 
PLEASE PRINT NAME OF FUND BEING REDEEMED ON LINE AT RIGHT:  ....................
 
The Subscriber hereby authorizes Demeter Management Corporation to redeem the
above quantity of units of limited partnership interest set forth opposite the
name of the partnership identified above at the Net Asset Value thereof, as
defined in the limited partnership agreement of such partnership, less any
redemption charges, and to utilize the net proceeds thereof to purchase Units in
PSF as indicated. With respect to PSF, an exchange may only be made in whole
units, in an amount equal to the lesser of (i) $5,000 ($2,000 in the case of an
IRA), and (ii) the proceeds from the redemption of a minimum of 5 units in a
regular account for any partnership other than those in the Dean Witter Spectrum
Series ("Spectrum") (500 units in the case of Spectrum), or 2 units in an IRA
for any partnership other than those in Spectrum (200 units in the case of
Spectrum), unless a limited partner is liquidating his entire interest in a
partnership.
 
<TABLE>
<CAPTION>
<S>                                  <C>  <C>                                  <C>  <C>
 TAXABLE INVESTORS                                                                  NON-TAXABLE INVESTORS
 / / / / / / -- / / / / -- / / / / / / / / OR  / / / / -- / / / /  / / / / / / / /  / OR / / / / / / / / / / / / / / / / / / / / / /
 
Social Security Number of: (check one)    Taxpayer ID Number for: (check one)     Soc. Sec. #/Taxpayer ID # for: (check
                                                                                                                   one)
/ /  Individual Ownership                 / /  Trust other than Grantor or          / /  IRA (the DWR Branch Manager
                                                   Revocable Trust                       must  sign below for IRA
/ /  Joint Tenants with Rights of                                                        accounts)
         Survivorship                     / /  Estate
                                                                                    / /  Employee Benefit Plan
/ /  Tenants in Common                    / /  UGMA/UTMA (Minor)                    (Participant-
                                                                                             Directed)
/ /  Community Property                   / /  Partnership
                                                                                    / /  Defined Benefit Plan (Other)
/ /  Grantor or other Revocable           / /  Corporation
     Trust                                                                          / /  Other (specify)
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
- -- -- -- -- --
</TABLE>
 
<TABLE>
<S>                                                    <C>     <C>
 UNITED STATES TAXABLE INVESTORS ONLY:                 OR       NON-UNITED STATES INVESTORS ONLY:
 /  /  Check box  if Subscriber  is subject  to backup          Under penalties of perjury,  by signature below,  the
     withholding   under  the  provisions  of  Section          Subscriber certifies  that  such  Subscriber  is  NOT
     3406(a)(1)(C)   of  the  Internal  Revenue  Code.          (a)   a   citizen   or   resident   of   the   United
If Subscriber's taxable year is other than the calendar            States;
 year, indicate the date on which                               (b)  or,  a United  States  corporation, partnership,
    Subscriber's taxable year                                       estate or trust.
 ends  ...............................................
 Under penalties  of  perjury,  by  signing  below,  I
 certify  that the Social Security Number (or Taxpayer
 ID Number) above to be the true, correct and complete
 Social Security Number  (or Taxpayer  ID Number)  and
 that  all the information above  is true, correct and
 complete.
</TABLE>
 
<TABLE>
<S>                        <C>                                                                                       <C>
X  ............................................................................................................................
(Signature of Subscriber or Officer, Partner or Trustee [or Branch Manager in the case of IRAs])         Date
If Subscriber is an Entity: Type or Print Name of Entity:  ...........................................................
                           Name:  ...................................... Date: ......................................
                           Title:  ..................................................................................
</TABLE>
 
                                      B-11
<PAGE>
 
<TABLE>
<S>                 <C>
Full Name of Account ....................................................................................................
                    (Subscriber's Name or Name of Trust or Custodial Account--do not use initials)
Subscriber is a resident of ........................................... and a citizen of ...........................................
                                        (name of country)                                            (name of country)
Street Address ....................................................................................................................
                                   (MUST be residence address -- P. O. Box alone not acceptable)
</TABLE>
 
<TABLE>
<S>                                                         <C>            <C>            <C>
City........................................................ State.......... Zip Code....... Tel. No. ( ....... ) ......
</TABLE>
 
/ /  Check here if Subscriber is a non-resident alien individual, foreign
corporation, foreign partnership, foreign trust or foreign estate that is a
dealer in commodities or otherwise engaged in a trade or business within the
U.S.A. to which income, gain or loss from the Partnership would be treated as
effectively connected. (Subscriber must complete Form W-8 which may be obtained
from DWR AE.)
 
COMPLETE, IF APPLICABLE (MUST BE COMPLETED IF THERE IS A CO-SUBSCRIBER, TRUSTEE
                                 OR CUSTODIAN):
 
Name  ............... Telephone Number ( ......... )  ..........................
                   The person or entity above is a/an (check
           one)
 
<TABLE>
<S>                           <C>                           <C>
                                                             / /  Authorized Person, if an
 / /  Co- Subscriber           / /  Trustee or Custodian     Institutional Trustee
</TABLE>
 
Street Address  ................................................................
                              (P. O. Box alone not acceptable)
 
<TABLE>
<S>                                                                                                 <C>            <C>
City................................................................................................ State.......... Zip Code.......
</TABLE>
 
Co-Subscriber, Trustee or Custodian
is a resident of................... and a citizen of...................
Minor (if not a gift) is a resident
of................................. and a citizen of...................
 
- --------------------------------------------------------------------------------
ITEM 2 -- SIGNATURE(S)--SUBSCRIBER(S) MUST SIGN UNDER TAX REPRESENTATION ON
PRECEDING PAGE AND BELOW
- --------------------------------------------------------------------------------
 
(INDIVIDUAL OR JOINT SUBSCRIPTION, INCLUDING PARTICIPANT-DIRECTED EMPLOYEE
BENEFIT PLAN OR IRA SUBSCRIPTION)
 
If this  subscription  is  for  a  joint  or  community  property  account,  the
statements,  representations, and warranties set  forth in this Subscription and
Exchange Agreement and Power of  Attorney shall be deemed  to have been made  by
each owner of the account.
 
*     If the  Units will  be owned  by joint  owners, tenants  in common,  or as
community property, signatures of all owners are required.
 
*   In the case of a participant-directed employee benefit plan or IRA, the
    beneficiary must sign immediately below and the trustee or custodian must
    sign below under "Entity Subscription".
 
<TABLE>
<S>                                                    <C>       <C>                                                    <C>
X ..........................................                     X ..............................................
 .        ..................                                      .        ..................
               (Signature of Subscriber)                  Date                (Signature of Co- Subscriber)                Date
</TABLE>
 
(ENTITY SUBSCRIPTION)
 
    ACCEPTANCE OF SUBSCRIPTION ON BEHALF OF EMPLOYEE BENEFIT PLANS (INCLUDING
IRAS) IS IN NO RESPECT A REPRESENTATION BY THE GENERAL PARTNER OR DWR THAT THIS
INVESTMENT MEETS ALL RELEVANT LEGAL REQUIREMENTS WITH RESPECT TO INVESTMENTS BY
ANY PARTICULAR PLAN, OR THAT THIS INVESTMENT IS APPROPRIATE FOR ANY PARTICULAR
PLAN.
 
    The undersigned corporate officer, partner or trustee hereby certifies and
warrants that s/he has full power and authority from or on behalf of the entity
named below and its shareholders, partners, or beneficiaries to complete,
execute and deliver this Subscription and Exchange Agreement and Power of
Attorney on their behalf and to make the statements, representations, and
warranties made herein on their behalf, and that investment in the Partnership
is authorized under applicable law and the governing documents of the entity,
has been affirmatively authorized by the governing board or body, if any of the
entity, and is legally permissible.
 
<TABLE>
<S>                                                              <C>
 ......................................................                    X  ....................................................
 .............                                                                                               .....................
(Type or Print Name of Entity)                                                                                (Signature)     Date
Print Name  ........................................                       Title  ................................................
 ............                                                                                               ......................
</TABLE>
 
                                      B-12
<PAGE>
- --------------------------------------------------------------------------------
ITEM 3 -- BRANCH MANAGER AND ACCOUNT EXECUTIVE USE ONLY (COMPLETED IN FULL AND
IN INK)
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                           <C>        <C>
 The undersigned  Account Executive  hereby               THE  ACCOUNT EXECUTIVE MUST  SIGN BELOW IN
 certifies that:                                          ORDER TO SUBSTANTIATE COMPLIANCE WITH NASD
 (1) the  above signature(s)  are true  and               CONDUCT RULE 2810.
 correct;
 (2) s/he has informed the Subscriber about               X  .................................................
     the liquidity and marketability of the               ......................
     Units  as set forth in the Prospectus;                                 Account Executive's
 (3) based on information obtained from the               Signature
     Subscriber concerning this Subscriber's
     investment objectives, other                          ...................................................
     investments, financial situation, needs              ......................
     and any  other  relevant  information,                        Type or Print Full Name of Account
     that  s/he  reasonably  believes that:               Executive
   (a) such Subscriber is  or will be in  a               Telephone
       financial  position  appropriate  to               Number   ( .............  )   ............
       enable such Subscriber to realize the              .......................
       benefits   of  the   Partnership  as               THE  UNDERSIGNED  BRANCH  MANAGER   HEREBY
       described    in    the   Prospectus;               CERTIFIES THAT:
   (b) such  Subscriber  has  a  net  worth               (1) the above signature(s) is/are true and
     sufficient to sustain the risk inherent                  correct.
     in  the Partnership (including loss of               (2) the above  client(s) is/are  suitable.
 investment  and  lack  of  liquidity); and               X  .......................................
   (c)  the  Partnership  is  otherwise   a               Branch Manager's Signature
       suitable    investment    for   such                .........................................
       Subscriber; and                                    Type or Print Full Name of Branch Manager
 (4) the Subscriber received the Prospectus
     at least five  business days prior  to
     the Closing.
</TABLE>
 
                                      B-13
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
<TABLE>
<S>                                                                     <C>
SEC registration fee..................................................  $    33,682
NASD filing fee.......................................................       11,615
Printing and engraving................................................      350,000*
Legal fees and expenses excluding Blue Sky legal fees.................      275,000*
Accounting fees and expenses..........................................       50,000*
Escrow Agent fees.....................................................        3,000*
Blue Sky fees and expenses including Blue Sky legal fees..............       75,000*
Miscellaneous.........................................................      101,703*
                                                                        -----------
  Total...............................................................  $   900,000*
                                                                        -----------
                                                                        -----------
</TABLE>
 
- ------------------------
*Estimates.
 
ITEM 14.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    Section 14 of the Limited Partnership Agreement (a form of which is annexed
to the Prospectus as Exhibit A) provides for indemnification of the General
Partner and its affiliates (as such term is defined therein) by the Partnership
for any loss, liability, damage, cost or expense arising for conduct undertaken
by or on behalf of the Partnership that is determined by the General Partner in
good faith to be in the best interests of the Partnership and was not the result
of misconduct or negligence. The Limited Partnership Agreement also provides for
indemnification of the Partnership by its partners for any loss, liability,
damage, cost and expense incurred in connection with any partner's obligations
or liabilities unrelated to the Partnership's business. Section 12 of the
Selling Agreement provides for indemnification of DWR, the Partnership and the
General Partner and their directors, officers, employees and agents and their
respective successors and assigns by the Trading Advisor for any loss, claim,
damage, liability, cost, and expense incurred for misleading or untrue
statements and material omissions regarding the Trading Advisor, in the
Registration Statement or Prospectus (as defined therein). Section 12 of the
Selling Agreement also provides for the indemnification of DWR, the General
Partner and their affiliates by the Partnership for any loss, liability, damage,
cost, or expense for any act or omission taken on behalf of the Partnership
provided that DWR or the General Partner, as applicable, has determined in good
faith that the conduct was in the best interest of the Partnership and was not
the result of misconduct or negligence. Section 8 of the Customer Agreement
provides for indemnification of DWR and its affiliates by the Partnership for
liabilities, losses, damages, costs, or expenses for activities taken by or on
behalf of the Partnership which DWR has determined in good faith are in the best
interests of the Partnership and are not the result of misconduct or negligence.
Section 9 of the Management Agreement provides for indemnification of the
Partnership, the General Partner and its controlling persons, their affiliates
and their respective directors, officers, shareholders, employees and
controlling persons by the Trading Advisor for liabilities, losses, claims,
damages, costs, and expenses incurred as a result of actions regarding the
Trading Advisor which are found by a court of competent jurisdiction (or an
opinion of counsel) to be a breach of the Management Agreement, or a
representation or agreement therein, the result of bad faith, misconduct or
negligence or conduct not done in good faith in the reasonable belief that it
was in, or not opposed to, the best interest of the Partnership.
 
ITEM 15.  RECENT SALES OF UNREGISTERED SECURITIES.
 
    None.
 
                                      II-1
<PAGE>
ITEM 16.  EXHIBITS AND FINANCIAL STATEMENTS.
 
    (A) EXHIBITS
 
<TABLE>
<CAPTION>
EXHIBIT NUMBER                                   DESCRIPTION OF DOCUMENT
- ---------------  ---------------------------------------------------------------------------------------
<C>              <S>
       1.01      Form of Selling Agreement among the Registrant, Demeter Management Corporation, the
                  Trading Advisor and Dean Witter Reynolds Inc.
      *3.01      Form of Limited Partnership Agreement of the Registrant.
       3.01 (a)  Form of Amended and Restated Limited Partnership Agreement of the Registrant (included
                  as Exhibit A to the Prospectus).
      *3.02      Certificate of Limited Partnership of the Registrant.
       3.02 (a)  Form of Amendment to the Certificate of Limited Partnership of the Registrant.
       5.01      Opinion of Cadwalader, Wickersham & Taft to the Registrant regarding the legality of
                  Units (including consent).
       8.01      Opinion of Cadwalader, Wickersham & Taft to the Registrant regarding certain federal
                  income tax matters (including consent).
      10.01      Form of Amended and Restated Customer Agreement between the Registrant and Dean Witter
                  Reynolds Inc.
      10.02      Form of Amended and Restated Management Agreement among the Registrant, the General
                  Partner and the Trading Advisor.
      10.03      Subscription and Exchange Agreement and Power of Attorney to be executed by certain
                  purchasers of Units (included as Exhibit B to the Prospectus).
      10.04      Escrow Agreement among the Registrant, Dean Witter Reynolds Inc., and The Chase
                  Manhatten Bank, the escrow agent.
      23.01      Consent of Independent Auditors for the General Partner and the Registrant.
</TABLE>
 
- ------------------------
  *Previously filed with Registration Statement No. 33-36656, as amended, and
   incorporated herein by reference.
 
    (B) FINANCIAL STATEMENTS.
 
    Included in the Prospectus:
               Dean Witter Portfolio Strategy Fund L.P.
                   Independent Auditors' Report
                   Statements of Financial Condition
                   Statements of Operations
                   Statements of Changes in Partners' Capital
                   Statements of Cash Flows
                   Notes to Financial Statements
               Demeter Management Corporation
                   Independent Auditors' Report
                   Statements of Financial Condition
                   Notes to Statements of Financial Condition
 
ITEM 17.  UNDERTAKINGS.
 
    The undersigned Registrant hereby undertakes:
 
    (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement: (a) to include any
prospectus required by Section 10(a)(3) of the Securities Act of 1933; (b) to
reflect in the Prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment
thereof) which, individually or in the aggregate, represent a fundamental change
in the information set forth in the Registration Statement; and (c) to include
any material information with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material change to such
information in the Registration Statement.
 
                                      II-2
<PAGE>
    (2) That, for the purpose of determining any liability under the Securities
Act of 1933, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
 
    (3) That all post-effective amendments will comply with the applicable
forms, rules and regulations of the Securities and Exchange Commission in effect
at the time such post-effective amendments are filed.
 
    (4) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.
 
    (5) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers, and controlling persons of
the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer, or controlling person of the Registrant
in the successful defense of any action, suit, or proceeding) is asserted by
such director, officer, or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
    Pursuant  to the requirements of the  Securities Act of 1933, the registrant
has duly caused this Registration  Statement to be signed  on its behalf by  the
undersigned, thereunto duly authorized, in the City of New York and State of New
York on the 27th day of March, 1997.
 
                                      DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
 
                                        By: DEMETER MANAGEMENT
                                             CORPORATION,
                                              General Partner
 
                                      By: __________/s/_MARK J. HAWLEY__________
                                                 Mark J. Hawley, President
 
    Pursuant   to  the  requirements  of  the   Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
               SIGNATURE                                        TITLE                                 DATE
- ---------------------------------------  ----------------------------------------------------  ------------------
<S>                                      <C>                                                   <C>
DEMETER MANAGEMENT                       General Partner
  CORPORATION
 
   /s/MARK J. HAWLEY                     President and Director of the General Partner         March 27, 1997
        Mark J. Hawley
 
   /s/RICHARD M. DEMARTINI               Chairman of the Board and Director of the General     March 27, 1997
     Richard M. DeMartini                 Partner
 
                                         Director of the General Partner                       March   , 1997
      Laurence E. Mollner
 
   /s/LAWRENCE VOLPE                     Director of the General Partner                       March 27, 1997
         Lawrence Volpe
 
                                         Director of the General Partner                       March   , 1997
      Joseph G. Siniscalchi
 
                                         Director of the General Partner                       March   , 1997
      Edward C. Oelsner, III
 
   /s/ROBERT E. MURRAY                   Director of the General Partner                       March 27, 1997
        Robert E. Murray
 
   /s/PATTI L. BEHNKE                    Vice President and Chief Financial                    March 27, 1997
         Patti L. Behnke                  and Principal Accounting Officer of the General
                                          Partner
</TABLE>
 
                                      II-4
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
EXHIBIT NUMBER                                    DESCRIPTION OF DOCUMENT                                       PAGE
- --------------  -------------------------------------------------------------------------------------------     -----
<C>             <S>                                                                                          <C>
      1.01      Form of Selling Agreement among the Registrant, Demeter Management Corporation, the Trading
                 Advisor and Dean Witter Reynolds Inc.
     *3.01      Form of Limited Partnership Agreement of the Registrant....................................
      3.01 (a)  Form  of Amended and Restated Limited Partnership  Agreement of the Registrant (included as
                 Exhibit A to the Prospectus)..............................................................
     *3.02      Certificate of Limited Partnership of the Registrant.......................................
      3.02 (a)  Form of Amendment to the Certificate of Limited Partnership of the Registrant.
      5.01      Opinion of Cadwalader, Wickersham & Taft to the Registrant regarding the legality of  Units
                 (including consent).......................................................................
      8.01      Opinion of Cadwalader, Wickersham & Taft to the Registrant regarding certain federal income
                 tax matters (including consent)...........................................................
     10.01      Form  of Amended  and Restated  Customer Agreement between  the Registrant  and Dean Witter
                 Reynolds Inc..............................................................................
     10.02      Form of Amended and Restated Management Agreement among the Registrant, the General Partner
                 and the Trading Advisor...................................................................
     10.03      Subscription and  Exchange  Agreement and  Power  of Attorney  to  be executed  by  certain
                 purchasers of Units (included as Exhibit B to the Prospectus).............................
     10.04      Escrow  Agreement among the Registrant, Dean Witter  Reynolds Inc., and The Chase Manhattan
                 Bank, the escrow agent....................................................................
     23.01      Consent of Independent Auditors for the General Partner and the Registrant.................
</TABLE>
 
- ---------
 *Previously filed with  Registration Statement  No. 33-36656,  as amended,  and
  incorporated herein by reference.

<PAGE>
                                                                    Exhibit 1.01
                                SELLING AGREEMENT

                                               Dated as of __________, 1997


Dean Witter Reynolds Inc.
2 World Trade Center, 62nd Floor
New York, New York 10048

Dear Sirs:

            Dean Witter Portfolio Strategy Fund L.P., a limited partnership
organized pursuant to its certificate of limited partnership filed on August 28,
1990, as amended on July 24, 1996 (as amended, the "Certificate of Limited
Partnership") and its limited partnership agreement dated as of August 28, 1990,
as amended and restated as of ________, 1997, (as amended and restated, the
"Limited Partnership Agreement") under the law of the State of Delaware (the
"Partnership"), proposes, subject to the terms and conditions set forth in this
Agreement, to offer, sell, and issue up to 50,000 Units of Limited Partnership
Interest of the Partnership (the "Units").

            Demeter Management Corporation, a Delaware corporation, is the sole
general partner of the Partnership (the "General Partner"). John W. Henry &
Company, Inc. a California corporation (the "Trading Advisor"), acts as trading
advisor with respect to the management of the Partnership's trading activities
pursuant to an amended and restated management agreement between the Trading
Advisor, the Partnership and the General Partner (the "Management Agreement")
dated as of the Closing, as such term is defined in the Partnership's Prospectus
(defined below).

            Dean Witter Reynolds Inc., a Delaware corporation, will act as
selling agent pursuant to this Agreement ("DWR") and acts as commodity broker
(in such capacity, the "Commodity Broker") pursuant to an amended and restated
customer agreement between the Partnership and the Commodity Broker dated as of
September 1, 1996, (the "Customer Agreement"). Subscriptions for Units will be
held by The Chase Manhattan Bank (in such capacity, the "Escrow Agent") pursuant
to an escrow agreement dated among the Partnership, The Chase Manhattan Bank and
DWR (the "Escrow Agreement").

            1. Representations and Warranties of the General Partner and the
Partnership. The General Partner and the Partnership represent and warrant to
each of the other parties hereto, as follows:

                  (a) The Partnership has provided to the Trading Advisor and
DWR and filed with the Securities and Exchange Commission (the "SEC") a
registration statement on Form S-1 (No. 333- ), as filed with: (i) the SEC on
________, 1997 and a related preliminary prospectus (which has not been
distributed to the public) for the registration of the Units under the
Securities Act of 1933, as amended (the "1933 Act"), and the rules and
<PAGE>

regulations promulgated thereunder (the "SEC Regulations"), and has filed copies
thereof with; (ii) the Commodity Futures Trading Commission (the "CFTC") under
the Commodity Exchange Act, as amended (the "CEAct") and the rules and
regulations promulgated thereunder (the "CFTC Rules"); (iii) the National
Association of Securities Dealers, Inc. (the "NASD") pursuant to its Conduct
Rules; and (iv) the National Futures Association (the "NFA") in accordance with
NFA Compliance Rule 2-13, and has filed any such amendments thereto and any such
amended prospectuses as may have been required by the SEC or the CFTC or any
other applicable regulatory authority or as advised by counsel as of the date
hereof. The registration statement, as amended and previously delivered to all
parties hereto and the amended prospectus included therein are hereinafter
called the "Registration Statement" and the "Prospectus," respectively, except
that (i) if the Partnership files a post-effective amendment to the registration
statement, then the term "Registration Statement" shall, from and after the
declaration of the effectiveness of such post-effective amendment, refer to the
registration statement as amended by such post-effective amendment thereto, and
the term "Prospectus" shall refer to the amended prospectus then on file with
the SEC as part of the Registration Statement, and (ii) if a subsequent
prospectus is filed pursuant to Rule 424 of the SEC Regulations, the term
"Prospectus" shall refer to the prospectus most recently filed pursuant to such
Rule from and after the date on which it shall have been first used, including
any amendment or supplement thereto, from and after the date on which it shall
have been first used. The Partnership will not file any amendment to the
Registration Statement or any amendment or supplement to the Prospectus unless
DWR and the Trading Advisor have received reasonable prior notice of and a copy
of such amendments or supplements and have not reasonably objected thereto in
writing.

                  (b) The Limited Partnership Agreement provides for the
subscription for and sale of the Units; all action required to be taken by the
General Partner and the Partnership as a condition to the sale of the Units to
qualified subscribers therefor has been, or prior to the Closing as defined in
Section 6(b) hereof will have been, taken; and, upon payment of the
consideration therefor specified in each accepted Subscription and Exchange
Agreement and Power of Attorney in the form attached to the Prospectus, the
Units will constitute valid limited partnership interests in the Partnership.

                  (c) The Partnership is a limited partnership duly organized
pursuant to the Certificate of Limited Partnership, the Limited Partnership
Agreement, and the Delaware Revised Uniform Limited Partnership Act ("DRULPA"),
and is validly existing under the laws of the State of Delaware with full power
and authority to engage in its activities as described in the Prospectus; the
Partnership has received a certificate of authority to do business in the State
of New York as provided by Section 120-902 of the New York Revised Limited
Partnership Act and is qualified to do business in each jurisdiction in which
the nature or conduct of its business requires such qualification and where
failure to be so qualified could materially adversely affect the Partnership's
ability to perform its obligations hereunder or under the Management Agreement,
the Customer Agreement, the Escrow Agreement, or the Limited Partnership
Agreement, as applicable.



                                      -2-
<PAGE>

                  (d) The General Partner is duly organized and validly existing
and in good standing as a corporation under the laws of the State of Delaware
and in good standing and qualified to do business as a foreign corporation under
the laws of the State of New York and is qualified to do business and is in good
standing as a foreign corporation in each jurisdiction in which the nature or
conduct of its business requires such qualification and where the failure to be
so qualified could materially adversely affect the General Partner's ability to
perform its obligations hereunder or under the Management Agreement, the Limited
Partnership Agreement, or as described in the Prospectus.

                  (e) The Partnership and the General Partner have full
partnership or corporate power and authority under applicable law to conduct
their business and to perform their respective obligations, as applicable, under
the Limited Partnership Agreement, the Escrow Agreement, the Management
Agreement, the Customer Agreement, and this Selling Agreement (this
"Agreement").

                  (f) The Registration Statement and Prospectus contain all
statements and information required to be included therein by the CEAct and the
CFTC Rules. At all times subsequent to the Registration Statement having become
effective under the 1933 Act up to and including the Closing, the Registration
Statement and Prospectus have complied and will comply in all material respects
with the requirements of the 1933 Act, the SEC Regulations, the CEAct, the CFTC
Rules, and the rules of the NASD and NFA. As of its effective date, the
Registration Statement did not contain any untrue statement of a material fact
or omit to state a material fact required to be stated therein or necessary to
make the statements therein not misleading. The Prospectus, as of its date of
issue and at the Closing, did not and will not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
therein, in light of the circumstances under which such statements were made,
not misleading. Any supplemental sales literature employed in the offering of
Units ("Sales Literature"), when read in conjunction with the Prospectus, will
not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements therein, in light of the circumstances
under which such statements were made, not misleading. The Sales Literature will
comply with the CEAct, the CFTC Rules, SEC Regulations, and the rules of the NFA
and NASD. This representation and warranty shall not, however, apply to any
statement or omission in the Registration Statement, Prospectus or Sales
Literature relating to the Trading Advisor or made in reliance upon and in
conformity with information furnished or approved in writing by the Trading
Advisor.

                  (g) The accountants who certified the financial statements
filed with the SEC as part of the Registration Statement are, with respect to
the General Partner and the Partnership, independent public accountants as
required by the 1933 Act and the SEC Regulations.



                                      -3-
<PAGE>

                  (h) The financial statements filed as part of the Registration
Statement and those included in the Prospectus present fairly the financial
positions of the Partnership and of the General Partner as of the dates
indicated, and said financial statements have been prepared in conformity with
generally accepted accounting principles (as described therein).

                  (i) Since the respective dates as of which information is
given in the Registration Statement and the Prospectus, there has not been any
material adverse change in the condition, financial or otherwise, business or
prospects of the General Partner or the Partnership, whether or not arising in
the ordinary course of business.

                  (j) The General Partner will have a net worth at the Closing
sufficient in amount and satisfactory in form to meet the net worth requirements
set forth in the Limited Partnership Agreement, or as otherwise set forth in the
opinion of Cadwalader, Wickersham & Taft, counsel for the General Partner, for
classification of the Partnership as a partnership for federal income tax
purposes.

                  (k) The Limited Partnership Agreement, the Management
Agreement and this Agreement have each been duly and validly authorized,
executed and delivered by the General Partner on behalf of the Partnership and
the General Partner and each constitutes a valid, binding and enforceable
agreement of the Partnership and of the General Partner in accordance with its
terms. The Escrow Agreement has been duly and validly authorized, executed and
delivered by the General Partner on behalf of the Partnership and constitutes a
valid, binding and enforceable agreement of the Partnership in accordance with
its terms. The Customer Agreement has been duly and validly authorized, executed
and delivered by the General Partner on behalf of the Partnership.

                  (l) The execution and delivery of the Limited Partnership
Agreement, the Escrow Agreement, the Customer Agreement, the Management
Agreement, and this Agreement, the incurrence of the obligations set forth in
each of such agreements and the consummation of the transactions contemplated
therein and in the Registration Statement and Prospectus will not violate, or
constitute a breach of, or default under, the General Partner's certificate of
incorporation or bylaws, the Certificate of Limited Partnership, or the Limited
Partnership Agreement, or any agreement or instrument by which either the
General Partner or the Partnership is bound, or any order, rule, law or
regulation applicable to the General Partner or the Partnership of any court or
any governmental body or administrative agency or panel or self-regulatory
organization having jurisdiction over the General Partner or the Partnership.

                  (m) Except as set forth in the Prospectus, there has not been
in the five years preceding the date of the Prospectus and there is not pending
or, to the best of the General Partner's knowledge, threatened, any action, suit
or proceeding at law or in equity before or by any court or any governmental
body, any administrative agency, panel or self-regulatory organization to which
the General Partner or any General Partner Principal (as hereinafter defined) or
the Partnership is or was a party, or to which any of the assets of the 


                                      -4-
<PAGE>

General Partner or the Partnership is or was subject, and neither the General
Partner nor any of the principals of the General Partner, as "principals" is
defined in CFTC Rule 4.10(e) ("General Partner Principals") has received any
notice of an investigation by the NFA, NASD, SEC or CFTC regarding
non-compliance by the General Partner, the General Partner Principals or the
Partnership with the 1933 Act, the Securities Exchange Act of 1934, as amended
(the "1934 Act"), SEC Regulations, any other federal securities laws, rules or
regulations, the CEAct, the CFTC Rules, or the Rules of the NASD or NFA which
would be material to an investor's decision to invest in the Partnership.

                  (n) The General Partner, and each principal of the General
Partner as defined in CFTC Rule 3.1(a), has all federal, state and foreign
governmental, regulatory and exchange approvals and licenses, and has effected
all filings and registrations with federal, state and foreign governmental
regulators and self-regulatory organizations required to conduct its business
and to act as described in the Registration Statement and Prospectus or required
to perform its obligations as described under the Limited Partnership Agreement,
the Customer Agreement, the Escrow Agreement the Management Agreement and this
Agreement, as applicable. The General Partner is registered as a commodity pool
operator under the CEAct and is a member of the NFA as a commodity pool
operator. The General Partner's principals identified in the Prospectus are all
of the General Partner Principals.

            2. Representations and Warranties of the Commodity Broker. The
Commodity Broker represents and warrants to each of the other parties hereto, as
follows:

                  (a) The Commodity Broker is a corporation duly organized and
validly existing and in good standing under the laws of the State of Delaware
and is in good standing and qualified to do business in the State of New York
and in each other jurisdiction in which the nature or conduct of its business
requires such qualification and the failure to be duly qualified would
materially adversely affect the Commodity Broker's ability to perform its
obligations hereunder or under the Customer Agreement. The Commodity Broker has
full corporate power and authority to perform its obligations under the Customer
Agreement and this Agreement and to act as described in the Registration
Statement and Prospectus.

                  (b) As to the Commodity Broker and the "principals" of the
Commodity Broker as defined in CFTC Rule 4.10(e) (the "Commodity Broker
Principals"): (i) the Registration Statement and Prospectus are accurate and
complete in all material respects and contain all statements and information
required to be included therein under the 1933 Act, the SEC Regulations, the
CEAct, the CFTC Rules, and the rules of the NFA, (ii) the Registration Statement
does not contain any untrue statement of a material fact or omit to state a
material fact which is required to be stated therein or necessary to make the
statements therein not misleading as of its effective date, and (iii) the
Prospectus, at its date of issue and as of the Closing, did not and will not
contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements therein, in light of the circumstances under
which such statements were made, not misleading.



                                      -5-
<PAGE>

                  (c) The Commodity Broker and each principal of the Commodity
Broker, as defined in CFTC Rule 3.1(a), has all federal, state and foreign
governmental regulatory and self-regulatory approvals, licenses and memberships,
and has effected all filings and registrations with federal, state and foreign
governmental regulators and self-regulatory organizations required to conduct
its business and to act as described in the Registration Statement and
Prospectus or required to perform its obligations under the Customer Agreement
and this Agreement, as applicable. The Commodity Broker is registered as a
futures commission merchant under the CEAct and is a member of the NFA as a
futures commission merchant.

                  (d) The Customer Agreement and this Agreement have each been
duly authorized, executed and delivered by the Commodity Broker and each
constitutes a valid and binding agreement of the Commodity Broker enforceable in
accordance with their respective terms.

                  (e) Since the respective dates as of which information is
given in the Registration Statement and the Prospectus, except as may otherwise
be stated in or contemplated by the Registration Statement and the Prospectus,
there has not been any material adverse change in the condition, financial or
otherwise, business or prospects of the Commodity Broker, whether or not arising
in the ordinary course of business.

                  (f) Except as set forth in the Registration Statement or
Prospectus, there has not been in the five years preceding the date of the
Prospectus and there is not pending, or, to the best of the Commodity Broker's
knowledge, threatened, any action, suit or proceeding before or by any court,
governmental body, administrative agency, panel, or self-regulatory organization
to which the Commodity Broker or any Commodity Broker Principal is or was a
party, or to which any of the assets of the Commodity Broker is or was subject
and which resulted in or might reasonably be expected to result in any material
adverse change in the condition, financial or otherwise, business or prospects
of the Commodity Broker or which would be material to an investor's decision to
invest in the Partnership. Neither the Commodity Broker nor any Commodity Broker
Principal has received any notice of an investigation by the NFA or the CFTC
regarding noncompliance by the Commodity Broker or the Commodity Broker
Principal with the CEAct, the CFTC Rules or the rules of the NFA.

                  (g) The execution and delivery of the Customer Agreement and
this Agreement, the incurrence of the obligations set forth in each of such
agreements and the consummation of the transactions contemplated therein and in
the Prospectus will not violate, or constitute a breach of, or default under,
the certificate of incorporation or bylaws of the Commodity Broker or any
agreement or instrument by which the Commodity Broker is bound, or any order,
law, rule or regulation applicable to the Commodity Broker of any court,
governmental body, administrative agency, panel or self-regulatory organization
having jurisdiction over the Commodity Broker.



                                      -6-
<PAGE>

            3. Representations and Warranties of the Trading Advisor. The
Trading Advisor hereby represents and warrants to and agrees with DWR, the
Partnership and the General Partner as follows:

                  (a) The Trading Advisor is duly organized, validly existing
and in good standing as a corporation under the laws of the state of its
incorporation and is qualified to do business as a foreign corporation and in
good standing in each other jurisdiction in which the nature or conduct of its
business requires such qualification and the failure to so qualify would
materially adversely affect the Trading Advisor's ability to perform its duties
under this Agreement and the Management Agreement. The Trading Advisor has full
corporate power and authority to perform its obligations under each of such
agreements, and as described in the Registration Statement and Prospectus. The
only principals (as defined in CFTC Rule 4.10(e)) of the Trading Advisor are
those set forth in the Prospectus (the "Trading Advisor Principals").

                  (b) All references to the Trading Advisor and each Trading
Advisor Principal, including the Trading Advisor's trading approaches and
programs, in the Registration Statement and the Prospectus, and in the Sales
Literature which has been approved in writing by the Trading Advisor, are
accurate and complete in all material respects. With respect to the material
relating to the Trading Advisor and each Trading Advisor Principal, including
the Trading Advisor's and the Trading Advisor Principals' trading approaches and
programs, as applicable, (i) the Registration Statement and Prospectus contain
all statements and information required to be included therein under the 1933
Act, the SEC Regulations, the CEAct, the CFTC Rules and the rules of the NFA,
(ii) the Registration Statement does not contain any misleading or untrue
statement of a material fact or omit to state a material fact which is required
to be stated therein or necessary to make the statements therein not misleading,
and (iii) the Prospectus at its date of issue did not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements therein, in light of the circumstances under which such
statements were made, not misleading.

                  (c) The Management Agreement and this Agreement have each been
duly and validly authorized, executed and delivered on behalf of the Trading
Advisor and each constitutes a valid and binding agreement of the Trading
Advisor enforceable in accordance with its terms.

                  (d) The Trading Advisor and each "principal" of the Trading
Advisor, as defined in CFTC Rule 3.1(a), has all federal, state and foreign
governmental, regulatory, and self-regulatory approvals, licenses and
memberships and has effected all filings and registrations with federal, state
and foreign regulators and self-regulatory organizations required to conduct
business and to act as described in the Registration Statement and Prospectus or
required to perform its or his obligations under this Agreement and the
Management Agreement, as applicable. The Trading Advisor is registered as a
commodity trading advisor under the CEAct and is a member of the NFA as a
commodity trading advisor.



                                      -7-
<PAGE>

                  (e) The execution and delivery of the Management Agreement and
this Agreement, the incurrence of the obligations set forth in each of such
agreements, and the consummation of the transactions contemplated therein and in
the Prospectus will not violate, or constitute a breach of, or default under,
the certificate of incorporation or bylaws of the Trading Advisor or any
agreement or instrument by which it is bound or of any order, law, rule or
regulation of any court, governmental body, administrative agency, panel or
self-regulatory organization having jurisdiction over the Trading Advisor.

                  (f) The Trading Advisor is not required to be registered as an
investment adviser under the Investment Advisers Act of 1940, as amended, in
respect to its activities described in the Registration Statement and the
Prospectus.

                  (g) Since the respective dates as of which information is
given in the Registration Statement and the Prospectus, except as may otherwise
be stated in or contemplated by the Registration Statement and the Prospectus,
there has not been any material adverse change in the condition, financial or
otherwise, business or prospects of the Trading Advisor or any Trading Advisor
Principal whether or not arising in the ordinary course of business.

                  (h) Except as set forth in the Registration Statement or
Prospectus or as disclosed in writing to the General Partner, there has not been
in the five years preceding the date of the Prospectus and there is not pending,
or, to the best of the Trading Advisor's knowledge threatened, any action, suit
or, proceeding before or by any court, governmental body, administrative agency,
panel or self-regulatory organization to which the Trading Advisor or any
Trading Advisor Principal is or was a party, or to which any of the assets of
the Trading Advisor is or was subject and which resulted in or might reasonably
be expected to result in any material adverse change in the condition, financial
or otherwise, business or prospects of the Trading Advisor or which would be
material to an investor's decision to invest in the Partnership. Except as
otherwise disclosed in writing to the General Partner, neither the Trading
Advisor nor any Trading Advisor Principal has received any notice of an
investigation by the NFA or the CFTC regarding noncompliance by the Trading
Advisor or any of the Trading Advisor Principals with the CEAct, the CFTC Rules
or the rules of the NFA.

                  (i) Neither the Trading Advisor nor any Trading Advisor
Principal has received, or is entitled to receive, directly or indirectly, any
commission, finder's fee, similar fee, or rebate from any person in connection
with the organization or operation of the Partnership.

            4. Covenants of the Partnership and the General Partner. The
Partnership and the General Partner covenant and agree as follows:

                  (a) The Partnership will use its best efforts to cause any
post-effective amendments to the Registration Statement to become effective as
promptly as possible. The Partnership will prepare and file with the SEC, NASD,
CFTC, and NFA, 


                                      -8-
<PAGE>

promptly upon DWR's request, any amendments to the Registration Statement and
any amendments and supplements to the Prospectus which may be necessary or
advisable in connection with the offering and sale of Units and will use its
best efforts to cause the same to become effective as promptly as possible.

                  (b) As soon as the Partnership is advised or obtains knowledge
thereof, it will advise DWR and the Trading Advisor of any requests made by the
SEC, NASD, CFTC, or NFA to amend the Registration Statement, to amend or
supplement the Prospectus, or for additional information or of the issuance by
the SEC of any stop order suspending the effectiveness of the Registration
Statement, of any order by the SEC, NASD, CFTC, or NFA preventing or suspending
the use of the Prospectus, or of the institution of any proceedings for any such
purpose, and will use its best efforts to prevent the issuance of any such order
and, if any such order is issued, to obtain the lifting thereof as promptly as
possible.

                  (c) If, at any time after the effective date of the
Registration Statement and any amendment thereto, any event occurs involving the
Partnership or the General Partner or any of their principals or of which the
Partnership or the General Partner or their principals are aware, as a result of
which the Registration Statement or Prospectus as then amended and supplemented
would include any untrue statement of a material fact or any omission to state a
material fact required to be stated therein or necessary to make the statements
therein (and, with respect to the Prospectus, in light of the circumstances
under which they were made) not misleading, or if it becomes necessary or
desirable at any time to amend or supplement the Registration Statement or
Prospectus to comply with the 1933 Act, the SEC Regulations, the CEAct, the CFTC
Rules, or the rules of the NFA, the Partnership will promptly notify DWR and the
Trading Advisor thereof and will prepare and file with the SEC, NASD, CFTC, and
NFA an amendment or supplement that will correct such statement or omission.

                  (d) The Partnership will furnish to each party hereto copies
of the Registration Statement, the Prospectus, and all amendments and
supplements thereto, in each case as soon as available and, in the case of DWR,
in such quantities (in the case of the Prospectus) as DWR may reasonably request
for delivery to it.

            5. Covenants of the Trading Advisor. The Trading Advisor covenants
and agrees as follows:

                  (a) The Trading Advisor agrees reasonably to cooperate by
providing information regarding itself in the preparation by the Partnership of
any amendments or supplements to the Registration Statement and the Prospectus.

                  (b) The Trading Advisor agrees to notify the General Partner
immediately upon discovery of any untrue statement of a material fact in the
Registration Statement or the Prospectus relating to the Trading Advisor or the
Trading Advisor 


                                      -9-
<PAGE>

Principals or an omission to state a material fact relating to the Trading
Advisor or the Trading Advisor Principals required to be stated therein or
necessary to make the statements therein (and, with respect to the Prospectus,
in light of the circumstances under which they were made) not misleading, or of
the occurrence of any event or change in circumstances which would result in
there being any material untrue or misleading statement or a material omission
in the Prospectus or Registration Statement regarding the Trading Advisor or the
Trading Advisor Principals, or which would result in the Prospectus not
including all material information relating to the Trading Advisor and the
Trading Advisor Principals required pursuant to the CEAct, the 1933 Act, the
CFTC Rules, or the rules of the NFA.

                  (c) The Trading Advisor will not use or distribute any
preliminary prospectus, Prospectus, amended or supplemented Prospectus or Sales
Literature nor engage in any selling activities whatsoever in connection with
the offering of the Units, except that the Trading Advisor shall, at the General
Partner's request, assist in the marketing of the Partnership to prospective
investors, including without limitation participating in "road show"
presentations, sales seminars, and other similar events in which the Trading
Advisor shall discuss only its own activities.

            6. Appointment of the Selling Agent.

                  (a) Subject to the terms and conditions set forth in this
Agreement, the Partnership hereby appoints DWR as its selling agent to offer and
sell Units on a best efforts basis, without any firm commitment on the part of
DWR to purchase any Units. DWR shall offer for sale up to 50,000 Units, and such
additional Units as the General Partner may, in its discretion, register and
offer for sale from time to time.

                  (b) The "Offering Period" will be the period commencing on the
date of the Prospectus and ending on October 10, 1997 unless the General Partner
has sooner terminated the Offering Period. DWR will offer Units for sale at a
closing (the "Closing"), which is currently scheduled to be held as of October
1, 1997, at a price equal to 100% of the of the Net Asset Value per Unit as of
the close of business on the last day of the immediately preceding month;
provided, however, that the General Partner may at its discretion hold the
Closing as of the first business day of any month during the Offering Period (as
defined herein). The minimum subscription for new subscribers shall be $5,000,
except that the minimum subscription is (a) $2,000 in the case of an Individual
Retirement Account ("IRA"), (b) $1,000 if the subscriber previously invested at
least $5,000, or $2,000 in the case of IRAs, in the Partnership, or (c) for
subscribers who purchase Units pursuant to an Exchange (as defined in the
Prospectus) the lesser of (i) $5,000 ($2,000 in the case of IRAs), (ii) the
redemption proceeds from the sale of five units (two units in the case of IRAs)
from commodity pools other than the Spectrum Series, (iii) the proceeds from the
redemption of 500 units (200 units in the case of IRAs) from one, or any
combination, of the Spectrum Series of commodity pools, or (iv) the proceeds
from the redemption of all of a subscriber's units of limited partnership
interest in any other commodity pool for which the General Partner serves as
general partner and commodity pool operator. The number of Units received by a
subscriber will be rounded to the third decimal place.



                                      -10-
<PAGE>

                        Notwithstanding any provision to the contrary herein,
the General Partner will have the sole discretion to accept or reject any
subscription for Units in whole or in part at any time prior to acceptance. The
General Partner will determine to accept or reject a subscription generally
within 10 days of the receipt of a complete and executed Subscription and
Exchange Agreement and Power of Attorney.

                  (c) No selling commissions will be charged with respect to the
sale of Units during the Offering Period. The Partnership understands, however,
that from DWR's own funds it may provide to its employees an amount equal to
that described in the following paragraph.

                  (d) Except as provided below, employees of DWR will receive
gross sales credit equal to three percent (3%) of the Net Asset Value per Unit
as of the date of the Closing for each Unit sold by them and issued at the
Closing (such compensation along with any other underwriting compensation will
not exceed 10% of the proceeds received in connection with the issuance of the
Units). Commencing with the eighth month following the Closing at which Units
are issued and continuing until the Partnership terminates, employees of DWR who
are properly registered with the CFTC also will receive up to 35% of the
brokerage commissions that are attributable to outstanding Units sold by them
and received by DWR as commodity broker for the Partnership. Such continuing
compensation is to be paid in recognition of employees' continuing services to
Limited Partners of the Partnership. No person will receive the continuing
compensation described above who is not DWR's employee at the time of receipt of
payment.

                        DWR will not pay to an employee the 3% gross sales
credit described above with respect to Units purchased by a subscriber pursuant
to an Exchange (as defined in the Prospectus). Such employee will receive the
continuing payments with respect to brokerage commissions which are charged to
the Partnership which are comparable to the payments which were received by such
employee with respect to such other commodity pools.

                  (e) Notwithstanding the foregoing, DWR will not pay any such
continuing compensation to any of its employees who is not legally qualified or
permitted to receive such continuing compensation. In that regard, each of DWR's
employees who receives any such monthly compensation must have become registered
as an associated person with the CFTC and with the NFA in such capacity only
after either having passed the National Commodity Futures Examination (NASD Test
Series #3), the Futures Managed Funds Examination (NASD Test Series #31) or
having been "grandfathered" under the CEAct and the bylaws and rules of the NFA.
Also, such compensation may be paid by DWR to its employees only in respect of
outstanding Units sold by such persons and only so long as the additional
services described below are provided by such persons to Limited Partners;
provided, however, that DWR may not pay any portion of such compensation to any
individual no longer employed by it, and provided, further, that such
compensation may be paid to its employees who, although not responsible for the
sale of an outstanding Unit, 


                                      -11-
<PAGE>

provide the services described below in place of the individual who was
responsible for such sale.

                        The additional services that DWR's employees will
provide on an ongoing basis to Limited Partners at no charge will include, but
not be limited to: (i) inquiring of the General Partner from time to time, at
the request of Limited Partners, as to the Net Asset Value of a Unit; (ii)
inquiring of the General Partner from time to time, at the request of Limited
Partners, as to the futures markets and the activities of the Partnership; (iii)
responding to questions of Limited Partners from time to time with respect to
monthly account statements, annual reports, financial statements, and annual tax
information furnished periodically to Limited Partners; (iv) providing advice to
Limited Partners from time to time as to when and whether to redeem Units; (v)
assisting Limited Partners from time to time in the redemption of Units; and
(vi) providing such other services as Limited Partners from time to time may
reasonably request.

                  (f) The Partnership and DWR acknowledge that DWR will be paid
any and all redemption charges imposed on Limited Partners in accordance with
Section 10(b) of the Limited Partnership Agreement.

            7. Undertakings of DWR.

                  (a) DWR agrees to use its best efforts to offer and sell Units
on the terms set forth in this Agreement, the Registration Statement, and the
Prospectus. It is understood that DWR has no commitment to offer and sell Units
or to purchase Units other than to use its best efforts to offer and sell Units.

                  (b) DWR will make the public offering of Units at the offering
price and on the other terms and conditions set forth in the Registration
Statement, the Prospectus, and this Agreement. DWR will offer and sell Units
only to persons who satisfy the suitability and/or minimum investment
requirements set forth in the Prospectus and the Subscription and Exchange
Agreement and Power of Attorney and who, to the General Partner's satisfaction,
complete a Subscription and Exchange Agreement and Power of Attorney. DWR will
conduct a thorough review of the suitability of each subscriber for Units, of
each Subscription and Exchange Agreement and Power of Attorney (i) authorizing
the General Partner and DWR to transfer the full subscription price from the
subscriber's customer account with DWR to the Dean Witter Portfolio Strategy
Fund L.P. Escrow Account (the "Escrow Account"), and (ii) requesting the
redemption of units in another partnership of which the General Partner is the
general partner and commodity pool operator and authorizing the purchase of
Units with the proceeds of such redemption.

                        All of DWR's branch offices will be required to forward
subscriptions to DWR's New York, New York branch office no later than noon of
the first business day following their receipt of an acceptable Subscription and
Exchange Agreement and Power of Attorney from a subscriber for Units. Subsequent
to its review of each Subscription and Exchange Agreement and Power of Attorney,
the General Partner will notify 


                                      -12-
<PAGE>

DWR, and DWR shall notify each subscriber by the business day following its
receipt of notice from the General Partner, of the General Partner's acceptance
of all, a portion, or none of the subscriber's subscription.

                        All funds from subscriptions received by DWR during the
Offering Period and not rejected by the General Partner will be promptly
deposited by DWR in the Partnership's Escrow Account which will have been
established with the Escrow Agent. The escrow arrangements are described in the
Prospectus and in the Escrow Agreement to which DWR is a party along with the
Escrow Agent and the Partnership. A subscriber whose Subscription and Exchange
Agreement and Power of Attorney is received by DWR and not immediately rejected
must have the full subscription amount in his customer account with DWR on the
first business day following the date that his Subscription and Exchange
Agreement and Power of Attorney is received by DWR, and DWR will transfer such
subscription funds to the Escrow Agent on that date. DWR will notify the General
Partner of the subscription amount deposited with the Escrow Agent on behalf of
each subscriber for Units and the name and residence address of each such
subscriber.

                        DWR will offer and sell Units in compliance with the
requirements set forth in the Registration Statement, the Prospectus
(particularly under the captions "Summary of the Prospectus -- Investment
Requirements," "Purchases by Employee Benefit Plans -- ERISA Considerations,"
"Plan of Distribution," and "Subscription Procedure"), the Subscription and
Exchange Agreement and Power of Attorney, and this Agreement. In connection with
DWR's acting as selling agent, DWR will comply fully at all times with all
applicable federal, state, and foreign securities and commodities laws
(including, without limitation, the 1933 Act, the 1934 Act, the CEAct and the
securities ("Blue Sky") laws of the jurisdictions in which DWR solicits
subscriptions), and all requirements of the NASD (particularly Conduct Rule
2810), the Board of Governors of the Federal Reserve System, and the securities
and commodities exchanges and other governmental and self-regulatory authorities
and organizations having jurisdiction over DWR. Specifically, (i) DWR will not
permit the purchase of any Units by a customer account over which DWR has
discretionary authority without prior written approval by the customer owning
such account; (ii) DWR confirms that it has reasonable grounds to believe that
all material facts are adequately and accurately disclosed in the Prospectus,
which provides a basis for evaluating an investment in the Partnership; (iii)
DWR confirms that in determining the adequacy of disclosed facts pursuant to
clause (ii), it has obtained information on material facts relating to: (A)
items of compensation, (B) tax aspects, (C) financial stability and experience
of the General Partner, and (D) the Partnership's conflicts and risk factors;
(iv) in recommending to a subscriber the purchase or sale of Units, DWR shall
take such measures as are reasonably necessary to assure itself that its Account
Executives have informed such subscriber of all pertinent facts relating to the
liquidity and marketability of the Units and that its Account Executives have
reasonable grounds to believe, on the basis of information obtained from such
subscriber concerning his investment objectives, other investments, financial
situation and needs, and any other information known by such Account Executive,
that: (A) such subscriber is or will be in a financial position appropriate to
enable him to realize to a 


                                      -13-
<PAGE>

significant extent the benefits described in the Prospectus, (B) such subscriber
has a fair market net worth sufficient to sustain the risks inherent in the
purchase of Units, including loss of investment and lack of liquidity, and (C)
the purchase of Units is otherwise suitable for such subscriber; (v) DWR shall
take such measures as are reasonably necessary to assure itself that each
subscriber has received a Prospectus at least five days prior to the Closing;
and (vi) the General Partner will maintain in its files, located c/o Dean Witter
Reynolds Inc., Two World Trade Center, New York, New York 10048, each
subscriber's Subscription and Exchange Agreement and Power of Attorney for not
less than six years and DWR will maintain, at its respective branch offices, any
other documents disclosing the basis upon which the determination of suitability
was reached for each such subscriber.

                  (c) If for any reason the General Partner determines not to
hold the Closing, the offering of Units will terminate and each subscription
received during the Offering Period will be promptly returned to DWR for deposit
in the subscriber's customer account with DWR within five business days of the
termination of the Offering Period, together with any interest earned on such
subscriber's funds while held in escrow in accordance with the Escrow Agreement,
and DWR will promptly notify each subscriber that such subscription has been
returned to such subscriber's customer account with DWR and that such funds are
under such subscriber's control.

                        All subscriptions received and accepted by the General
Partner will, upon the satisfaction at the Closing of the conditions set forth
in Sections 10 and 11 hereof, be delivered to the Partnership at the Closing,
and any interest earned on a subscriber's subscription funds while held in
escrow will be promptly returned to DWR in accordance with the Escrow Agreement
for prompt deposit in the subscriber's customer account with DWR. Interest
earned on any subscriptions deposited into the Escrow Account and thereafter
rejected by the General Partner will be credited to the subscriber's customer
account with DWR.

            8. Blue Sky Filings. The Partnership will use its best efforts to
qualify Units for offer and sale under the Blue Sky laws of such jurisdictions
as DWR may reasonably request, to make applications, file documents, and furnish
information as may be reasonably required for that purpose, and to comply with
such laws so as to permit the continuance of sales and dealings in such
jurisdictions for as long as may be necessary to complete the offer and sale of
Units, provided, however, that neither the Partnership nor the General Partner
will be required to qualify as or be subject to taxation as a foreign
partnership or corporation or to execute a general consent to service of process
in any jurisdiction. The Partnership further agrees that its counsel will
prepare and deliver to DWR Blue Sky surveys which will set forth, for DWR's
guidance, in what manner, at what time, in what amounts, and by whom Units may
be offered and sold in jurisdictions requested by DWR as provided above.

            9. Offering Expenses. DWR shall pay all of the expenses of the
offering of Units (collectively, the "Offering Expenses"), including all legal
and accounting fees and expenses of outside firms and all costs, disbursements,
filing fees, printing and duplication 


                                      -14-
<PAGE>

costs, marketing costs and expenses and other related costs and expenses. Legal
and accounting fees and expenses of outside firms shall include the legal and
accounting expenses relating to the offering of Units of DWR, the Partnership
and the General Partner. Marketing costs and expenses shall include, but not be
limited to, the printing and preparation of Sales Literature, the production of
any sales video, and the staging of sales seminars and the travel of DWR and
General Partner personnel associated therewith. DWR shall not be reimbursed for
such expenses by the Partnership. Such expenses will not include the travel,
legal and other expenses of the Trading Advisor, including such expenses
incurred in connection with the participation by the Trading Advisor in road
shows as described in Section 5(c).

            10. Closings.

                  (a) The Closing, if any, for the acceptance of subscriptions
for Units received during the Offering Period is currently scheduled to be held
as of October 1, 1997. The Closing will be held at such time and at such
location as the General Partner and DWR may mutually agree.

                  (b) Subject to its right to reject any subscription in its
sole discretion in whole or in part at any time prior to acceptance, the General
Partner, on behalf of the Partnership, will accept subscriptions for Units
properly made and cause proper entry to be made in the Unit register to be
maintained by the General Partner. DWR will cause a receipt to be made on behalf
of subscribers for Units accepted by the General Partner at the Closing and
shall send such subscribers a confirmation of purchase in its customary form.

                  (c) At the Closing, the delivery, receipt, and acceptance of
subscriptions for Units will be subject to the terms and conditions set forth in
this Agreement, including the following: (i) payment of the full subscription
price for Units and delivery of a properly completed Subscription and Exchange
Agreement and Power of Attorney by each subscriber, and (ii) compliance with
Section 11 hereof. Upon the satisfaction of such terms and conditions, the
aggregate subscription price for Units (exclusive of any interest earned on such
subscriptions while held in escrow and payable to the subscribers in accordance
with the Escrow Agreement) will be paid and delivered to the Partnership at the
Closing.

            11. Conditions of DWR's Obligations.

                  (a) DWR's obligations to proceed with the offering and sale of
Units and the Closing will be subject to: (i) the accuracy of the
representations and warranties by the Partnership, the General Partner and the
Trading Advisor in this Agreement as of the date hereof and as of the date of
the Closing as if such representations and warranties had been made on and as of
the date thereof; (ii) the performance by the Partnership, the General Partner
and the Trading Advisor of the covenants and agreements herein; and (iii) to the
additional conditions precedent set forth below.

                  (b) At the Closing, the additional conditions precedent are as
follows, unless waived by DWR:



                                      -15-
<PAGE>

            (i) The Registration Statement will have become effective. No stop
      order suspending the effectiveness of the Registration Statement will have
      been issued and no proceedings for that purpose will have been instituted
      or be pending or, to the knowledge of the Partnership or DWR, contemplated
      or threatened by the SEC. No order preventing or suspending the use of the
      Prospectus will have been issued and no proceedings for that purpose will
      have been instituted or be pending or, to the knowledge of the Partnership
      or DWR, contemplated or threatened by the SEC, NASD, CFTC, or NFA. Any
      requests by the SEC, NASD, CFTC, or NFA for additional information (to be
      included in the Registration Statement or Prospectus or otherwise) will
      have been complied with to DWR's satisfaction.

            (ii) Neither DWR nor the Trading Advisor will have advised the
      Partnership or the General Partner that, in its opinion, the Registration
      Statement or the Prospectus contains any untrue statement of a material
      fact or any omission of a material fact required to be stated therein or
      necessary to make the statements therein (in the case of the Prospectus,
      in light of the circumstances under which they were made) not misleading.

            (iii) The Trading Advisor will have furnished to DWR, the General
      Partner and the Partnership a certificate, dated the date of the Closing
      and in form and substance satisfactory to such parties, to the effect
      that:

                  (A) The representations and warranties by the Trading Advisor
            in this Agreement are true, accurate, and complete on and as of the
            date of the Closing as if made on the date of the Closing.

                  (B) The Prospectus, at the date of the Closing, does not
            contain any untrue statement of a material fact or omit to state a
            material fact necessary to make the statements therein, in light of
            the circumstances under which such statements were made, not
            misleading.

                  (C) The Trading Advisor has performed all of its obligations
            and satisfied all of the conditions on its part to be performed or
            satisfied under this Agreement, as applicable, as of the date of the
            Closing.

            (iv) The General Partner will have furnished to DWR and the Trading
      Advisor a certificate, dated the date of the Closing and in form and
      substance satisfactory to such parties, to the effect that:

                  (A) The representations and warranties by the Partnership and
            the General Partner in this Agreement are true,


                                      -16-
<PAGE>

            accurate, and complete on and as of the date of the Closing as if
            made on the date of the Closing.

                  (B) No stop order suspending the effectiveness of the
            Registration Statement has been issued by the SEC and no proceedings
            for that purpose have been instituted or are pending or, to the
            knowledge of the General Partner, are contemplated or threatened
            under the 1933 Act. No order preventing or suspending the use of the
            Prospectus has been issued by the SEC, NASD, CFTC, or NFA and no
            proceedings for that purpose have been instituted or are pending or,
            to the knowledge of the General Partner, are contemplated or
            threatened under the 1933 Act or the CEAct.

                  (C) The Partnership and the General Partner have performed all
            of their obligations and satisfied all of the conditions on their
            part to be performed or satisfied under this Agreement, the
            Management Agreement, the Escrow Agreement and the Customer
            Agreement at or prior to the date of the Closing.

                  (D) The General Partner has made the capital contribution to
            the Partnership and has met the net worth standard, both as required
            of it by the Limited Partnership Agreement.

            (v) Cadwalader, Wickersham & Taft, counsel to the General Partner
      and the Partnership, shall deliver its opinion to the parties hereto at
      the Closing, in form and substance satisfactory to the parties hereto, to
      the effect that:

                  (A) The Limited Partnership Agreement provides for the
            subscription for and sale of the Units; all action required to be
            taken by the General Partner and the Partnership as a condition to
            the subscription for and sale of the Units to qualified subscribers
            therefor has been taken; and, upon payment of the consideration
            therefor specified in the accepted Subscription and Exchange
            Agreements and Powers of Attorney, the Units will constitute valid
            limited partnership interests in the Partnership and each subscriber
            who purchases Units will become a Limited Partner, subject to the
            requirement that each such purchaser shall have duly completed,
            executed and delivered to the Partnership a Subscription and
            Exchange Agreement and Power of Attorney relating to the Units
            purchased by such purchaser, that such purchaser meets all
            applicable suitability standards and that the representations and
            warranties of such purchaser in the


                                      -17-
<PAGE>

            Subscription and Exchange Agreement and Power of Attorney are true
            and correct and that such purchaser is included as a Limited Partner
            in the Partnership's records.

                  (B) The Partnership is a limited partnership duly formed
            pursuant to the Certificate of Limited Partnership, the Limited
            Partnership Agreement and the DRULPA and is validly existing under
            the laws of the State of Delaware with full partnership power and
            authority to conduct the business in which it proposes to engage as
            described in the Registration Statement and Prospectus and to
            perform its obligations under the Management Agreement, the Escrow
            Agreement, the Customer Agreement and this Agreement; the
            Partnership has received a Certificate of Authority as contemplated
            under Section 121-902 of the New York Revised Limited Partnership
            Act and is qualified to do business in New York and need not affect
            any other filings or qualifications under the laws of any other
            jurisdictions to conduct its business as described in the
            Registration Statement and Prospectus.

                  (C) The General Partner is duly organized, validly existing
            and in good standing as a corporation under the laws of the State of
            Delaware with full corporate power and authority to act as general
            partner of the Partnership and is qualified to do business and is in
            good standing as a foreign corporation in the State of New York and
            in each other jurisdiction in which the nature or conduct of its
            business requires such qualification and the failure to so qualify
            might reasonably be expected to result in material adverse
            consequences to the Partnership or the General Partner's ability to
            perform its obligations as described in the Registration Statement
            and Prospectus. The General Partner has full corporate power and
            authority to conduct its business as described in the Registration
            Statement and Prospectus and to perform its obligations under the
            Limited Partnership Agreement, the Management Agreement, and this
            Agreement.

                  (D) The General Partner, each of its principals as defined in
            CFTC Rule 3.1(a) and the Partnership have all federal and state
            governmental, regulatory and self-regulatory approvals, licenses,
            registrations and memberships required by law and have made all
            filings with federal and state governmental regulators and
            self-regulatory organizations necessary in order for the General
            Partner and the Partnership to perform their obligations under the
            Limited Partnership Agreement, the Escrow


                                      -18-
<PAGE>

            Agreement, the Customer Agreement, the Management Agreement and this
            Agreement, and to conduct their business as described in the
            Registration Statement and Prospectus, except for such approvals,
            licenses, memberships, filings, and registrations the absence of
            which would not have a material adverse effect on their ability to
            act as described in the Registration Statement and Prospectus, or to
            perform their obligations under such agreements, and, to the best of
            such counsel's knowledge, after due investigation, none of such
            approvals, licenses, memberships or registrations have been
            rescinded, revoked or suspended.

                  (E) Each of the Limited Partnership Agreement, the Escrow
            Agreement, the Customer Agreement, the Management Agreement and this
            Agreement has been duly authorized, executed and delivered by or on
            behalf of the General Partner and/or the Partnership, as the case
            may be, and each of the Limited Partnership Agreement, the
            Management Agreement, and this Agreement constitutes a valid and
            binding agreement of the General Partner and the Partnership, and
            the Escrow Agreement constitutes a valid and binding agreement of
            the Partnership, and, in the case of each valid and binding
            agreement above, the agreement is enforceable in accordance with its
            terms, subject to bankruptcy, insolvency, reorganization, moratorium
            or similar laws at the time in effect affecting the enforceability
            generally of rights of creditors and by general principals of equity
            (regardless of whether such enforceability is considered in a
            proceeding in equity or at law), and except as enforceability of the
            indemnification, exculpation and contribution provisions contained
            in such agreements may be limited by applicable law or public
            policy.

                  (F) The execution and delivery of this Agreement, the Limited
            Partnership Agreement, the Customer Agreement, the Escrow Agreement,
            and the Management Agreement, as applicable, and the offer and sale
            of the Units by the Partnership and the incurrence of the
            obligations herein and therein set forth and the consummation of the
            transactions contemplated herein and therein and in the Prospectus
            will not be in contravention of the General Partner's certificate of
            incorporation or bylaws, the Certificate of Limited Partnership, or
            the Limited Partnership Agreement and, to the best of such counsel's
            knowledge based upon due inquiry of certain officers of the General
            Partner, will not constitute a breach of, default under, or a
            violation of any


                                      -19-
<PAGE>

            agreement or instrument known to such counsel by which the General
            Partner or the Partnership is bound, and will not violate any order,
            law, rule or regulation applicable to the General Partner or the
            Partnership of any court, governmental body, administrative agency,
            panel or self-regulatory organization having jurisdiction over the
            General Partner or the Partnership.

                  (G) To the best of such counsel's knowledge based upon due
            inquiry of certain officers of the General Partner, except as
            disclosed in the Prospectus, there are no actions, claims or
            proceedings pending or threatened in any court or before or by any
            governmental body, administrative agency, panel or self-regulatory
            organization, nor have there been any such actions, claims or
            proceedings within the five years preceding the date of the
            Prospectus, to which the General Partner, any General Partner
            Principal, or the Partnership is or was a party, or to which any of
            their assets is or was subject, which would be material to an
            investor's decision to invest in the Partnership or which might
            reasonably be expected to materially adversely affect the condition,
            financial or otherwise, or business of the General Partner, or the
            Partnership, whether or not arising in the ordinary course of
            business, or impair their ability to discharge their obligations as
            described in the Prospectus.

                  (H) No authorization, approval or consent of any governmental
            authority or agency (with respect to the Partnership and General
            Partner) is necessary in connection with the subscription for and
            sale of the Units in the United States, except such as may be
            required under the 1933 Act, the SEC Regulations, the CEAct, the
            CFTC Rules, the NFA and NASD rules and Blue Sky laws.

                  (I) The information in the Prospectus under the captions "Risk
            Factors - Taxation and Regulatory Risks," "Purchases by Employee
            Benefit Plans -- ERISA Considerations," "Material Federal Income Tax
            Considerations," "State and Local Income Tax Aspects," and "The
            Limited Partnership Agreement," to the extent that such information
            constitutes matters of law or legal conclusions, has been reviewed
            by such counsel and is correct.

                  (J) The Registration Statement is effective under the 1933 Act
            and, to the best of such counsel's knowledge, no


                                      -20-
<PAGE>

            proceedings for a stop order are pending or threatened under Section
            8(d) of the 1933 Act or any Blue Sky laws.

                  (K) At the time the Registration Statement became effective,
            the Registration Statement, and at the time the Prospectus was
            issued and as of the Closing, the Prospectus, complied as to form in
            all material respects with the requirements of the 1933 Act, the SEC
            Regulations, the CEAct, the CFTC Rules, and the rules of the NFA and
            NASD. Nothing has come to such counsel's attention that would lead
            such counsel to believe that the Registration Statement at the time
            it became effective contained any untrue statement of a material
            fact or omitted to state a material fact required to be stated
            therein or necessary to make the statements therein not misleading,
            or that the Prospectus at the time it was issued or at the Closing
            contained an untrue statement of a material fact or omitted to state
            a material fact necessary to make the statements therein, in light
            of the circumstances under which they were made, not misleading;
            provided, however, that Cadwalader, Wickersham & Taft need express
            no opinion or belief (a) as to information in the Registration
            Statement or the Prospectus regarding the Trading Advisor or its
            principals, or (b) as to the financial statements, notes thereto and
            other financial or statistical data set forth in the Registration
            Statement and Prospectus, except that Cadwalader, Wickersham & Taft
            shall opine, without rendering any opinion as to the accuracy of the
            information in the performance data, that the performance data of
            the Partnership set forth in the Prospectus complies as to form in
            all material respects with the CEAct and CFTC Rules, except as
            disclosed in the Prospectus.

                  (L) Based upon reliance on certain SEC No-Action letters, as
            of the Closing, the Partnership need not register as an "investment
            company" under the Investment Company Act of 1940, as amended.

            In rendering its opinion, such counsel may rely on information
obtained from public officials, officers of the General Partner and other
sources believed by it to be responsible and may assume that signatures on all
documents examined by it are genuine, and that a Subscription and Exchange
Agreement and Power of Attorney, in the form referred to in the Prospectus, has
been duly authorized, completed, dated, executed, and delivered and that funds
representing the full subscription price for the Units purchased have been
delivered by each purchaser of Units in accordance with the requirements set
forth in the Prospectus.



                                      -21-
<PAGE>

            (vi) Cadwalader, Wickersham & Taft shall deliver an opinion to the
      parties hereto at the Closing, in form and substance satisfactory to the
      parties hereto, to the effect that:

                  (A) The Commodity Broker is duly organized, validly existing
            and in good standing as a corporation under the laws of the State of
            Delaware and is qualified to do business and in good standing as a
            foreign corporation in the State of New York and in each other
            jurisdiction in which such qualification is required and in which
            the failure to so qualify might, in such counsel's opinion,
            reasonably be expected to result in material adverse consequences to
            the Partnership. The Commodity Broker has full corporate power and
            authority to perform its obligations as commodity broker as
            described in the Registration Statement and Prospectus and to
            perform its obligations under the Customer Agreement and this
            Agreement.

                  (B) Each of the Customer Agreement and this Agreement has been
            duly and validly authorized, executed and delivered by the Commodity
            Broker and constitutes a valid and binding agreement of the
            Commodity Broker enforceable in accordance with its terms, subject
            only to bankruptcy, insolvency, reorganization, moratorium or
            similar laws at the time in effect affecting the enforceability
            generally of rights of creditors and by general principals of equity
            (regardless of whether such enforceability is considered in a
            proceeding in equity or at law), and except as enforceability of the
            indemnification, exculpation and contribution provisions contained
            in such agreements may be limited by applicable law or public
            policy.

                  (C) The Commodity Broker has all federal and state
            governmental, regulatory, and self-regulatory approvals, licenses,
            registrations and memberships required by law and has made all
            filings with federal and state governmental regulators and
            self-regulatory organizations required to conduct its business as
            commodity broker as described in the Registration Statement,
            Customer Agreement and Prospectus, or required to perform its
            obligations as commodity broker under the Customer Agreement and
            this Agreement, except for such approvals, licenses, memberships,
            filings, and registrations the absence of which would not have a
            material adverse effect on its ability to act as described in the
            Registration Statement and Prospectus or to perform its obligations
            under such agreements (except that counsel need not opine as to
            exchange or clearinghouse 


                                      -22-
<PAGE>

            membership) and, to the best of such counsel's knowledge after due
            investigation, none of such approvals, licenses, memberships, or
            registrations have been rescinded, revoked or suspended.

                  (D) The execution and delivery of the Customer Agreement and
            this Agreement, the incurrence of the obligations as commodity
            broker herein and therein set forth and the consummation of the
            transactions as commodity broker contemplated herein and therein and
            in the Prospectus will not be in contravention of its certificate of
            incorporation or bylaws and, to the best of such counsel's knowledge
            based upon due inquiry of certain officers of the Commodity Broker,
            will not constitute a breach of, default under, or a violation of
            any agreement or instrument known to such counsel by which the
            Commodity Broker is bound, and will not violate any order, law, rule
            or regulation applicable to the Commodity Broker of any court,
            governmental body, administrative agency, panel or self-regulatory
            organization having jurisdiction over the Commodity Broker.

                  (E) To the best of such counsel's knowledge based upon due
            inquiry of certain officers of the Commodity Broker, except as
            disclosed in the Prospectus, there are no actions, claims or
            proceedings pending or threatened in any court or before or by any
            governmental body, administrative agency, panel or self-regulatory
            organization, nor have there been any such actions, claims or
            proceedings within the five years preceding the date of the
            Prospectus, to which the Commodity Broker or any Commodity Broker
            Principal is or was a party or to which any of its assets is or was
            subject, which would be material to an investor's decision to invest
            in the Partnership or which might reasonably be expected to
            materially adversely affect the condition, financial or otherwise,
            or the business of the Commodity Broker, whether or not arising in
            the ordinary course of business, or impair its ability to discharge
            its obligations as described in the Prospectus.

                  (F) Nothing has come to such counsel's attention to lead such
            counsel to believe that, as to the Commodity Broker in its role as
            commodity broker and the Commodity Broker Principals, (a) the
            Registration Statement at the time it became effective contained any
            untrue statement of a material fact or omitted to state a material
            fact required to be stated therein or 


                                      -23-
<PAGE>

            necessary to make the statements therein not misleading, or (b) the
            Prospectus at the time it was issued or at the Closing contained an
            untrue statement of a material fact or omitted to state a material
            fact necessary to make the statements therein relating to the
            Commodity Broker in its role as commodity broker and the Commodity
            Broker Principals, in light of the circumstances under which they
            were made, not misleading; provided, however, that counsel need
            express no opinion or belief as to the financial statements, notes
            thereto and other financial or statistical data set forth in the
            Registration Statement and Prospectus, except that counsel shall
            opine, without rendering any opinion as to the accuracy of the
            information in the performance data, that the performance data of
            the Trading Advisor set forth in the Prospectus complies as to form
            in all material respects with the CEAct and CFTC Rules, except as
            disclosed in the Prospectus.

            In rendering its opinion, such counsel may rely on information
obtained from public officials, officers of the Commodity Broker, and other
sources believed by it to be responsible and may assume that signatures on all
documents examined by it are genuine.

            (vii) Counsel to the Trading Advisor shall deliver an opinion to
      DWR, the General Partner and the Partnership at the Closing in form and
      substance satisfactory to such parties, in respect of the Trading Advisor,
      to the effect that:

                  (A) The Trading Advisor is a corporation duly organized,
            validly existing and in good standing under the laws of the state of
            its incorporation and is qualified to do business as a foreign
            corporation and in good standing in each other jurisdiction in which
            the nature or conduct of its business requires such qualification
            and the failure to be duly qualified would materially adversely
            affect the Trading Advisor's ability to perform its obligations
            under the Management Agreement and this Agreement. The Trading
            Advisor has full corporate power and authority to conduct its
            business as described in the Registration Statement and Prospectus
            and to perform its obligations under the Management Agreement and
            this Agreement.

                  (B) The Trading Advisor and the Trading Advisor Principals
            have all governmental, regulatory and self-regulatory approvals,
            licenses, registrations and memberships required by law, and the
            Trading Advisor and the Trading Advisor Principals 


                                      -24-
<PAGE>

            have made all filings with federal and state governmental regulators
            and self-regulatory organizations required to conduct the Trading
            Advisor's business and to act as described in the Registration
            Statement and the Prospectus and to perform its obligations under
            this Agreement and the Management Agreement, except for such
            licenses, memberships, filings and registrations the absence of
            which would not have a material adverse effect on its ability to act
            as described in the Registration Statement and Prospectus or to
            perform its obligations under such agreements, and, to the best of
            such counsel's knowledge after due investigation, none of such
            approvals, licenses, memberships, or registrations has been
            rescinded, revoked or suspended.

                  (C) Each of the Management Agreement and this Agreement has
            been duly and validly authorized, executed and delivered by or on
            behalf of the Trading Advisor and constitutes a valid and binding
            agreement of the Trading Advisor enforceable in accordance with its
            terms, subject only to bankruptcy, insolvency, reorganization,
            moratorium or similar laws at the time in effect affecting the
            enforceability generally of rights of creditors and by general
            principals of equity (regardless of whether such enforceability is
            considered in a proceeding in equity or at law), and except as
            enforceability of the indemnification, exculpation, and contribution
            provisions contained in such agreements may be limited by applicable
            law or public policy.

                  (D) To the best of such counsel's knowledge based upon due
            inquiry of certain officers of the Trading Advisor, except as
            disclosed in the Prospectus or in writing to the General Partner
            prior to the Closing, there are no material actions, claims or
            proceedings at law or in equity threatened or pending in any court
            or before or by any governmental body, administrative agency, panel
            or self-regulatory organization, nor have there been any such
            actions, claims or proceedings at any time within the five years
            preceding the date of the Prospectus to which the Trading Advisor or
            any Trading Advisor Principal is or was a party or to which any of
            its assets is or was subject, which would be material to an
            investor's decision to invest in the Partnership or which might
            reasonably be expected to materially adversely affect the condition,
            financial or otherwise, or the business of the Trading Advisor,
            whether or not arising in the ordinary course of 


                                      -25-
<PAGE>

            business, or impair its ability to discharge its obligations as
            described in the Prospectus.

                  (E) The execution and delivery of this Agreement and the
            Management Agreement, the incurrence of the obligations herein and
            therein set forth and the consummation of the transactions
            contemplated herein, therein and in the Prospectus will not be in
            contravention of any of the provisions of the certificate of
            incorporation or bylaws of the Trading Advisor and, to the best of
            such counsel's knowledge based upon due inquiry of certain officers
            of the Trading Advisor, will not constitute a breach of, default
            under, or a violation of any instrument or agreement known to such
            counsel by which the Trading Advisor is bound, and will not violate
            any order, law, rule or regulation applicable to the Trading Advisor
            of any court, governmental body, administrative agency, panel or
            self-regulatory organization having jurisdiction over the Trading
            Advisor.

                  (F) Based upon reliance on certain SEC No-Action letters, as
            of the Closing the performance by the Trading Advisor of its duties
            contemplated by the Management Agreement and this Agreement and as
            described in the Prospectus will not require the Trading Advisor to
            be registered as an "investment adviser" as that term is defined in
            the Investment Advisers Act of 1940, as amended.

                  (G) Nothing has come to such counsel's attention that would
            lead them to believe that, (a) the Registration Statement at the
            time it became effective, insofar as the Trading Advisor and the
            Trading Advisor Principals are concerned, contained any untrue
            statement of a material fact or omitted to state a material fact
            required to be stated therein or necessary to make the statements
            therein not misleading, or (b) the Prospectus at the time it was
            issued or at the Closing contained an untrue statement of a material
            fact or omitted to state a material fact necessary to make the
            statements therein relating to the Trading Advisor or the Trading
            Advisor Principals, in light of the circumstances under which they
            were made, not misleading; provided, however, that such counsel need
            express no opinion or belief as to the financial statements, notes
            thereto and other financial or statistical data set forth in the
            Registration Statement and Prospectus, except that such counsel
            shall opine, without rendering any opinion as to the accuracy of the
            information in the 


                                      -26-
<PAGE>

            performance data, that the performance data of the Trading Advisor
            set forth in the Prospectus complies as to form in all material
            respects with the CEAct and CFTC Rules, except as disclosed in the
            Prospectus.

            In giving the foregoing opinion, such counsel may rely on
information obtained from public officials, officers of the Trading Advisor, and
other sources believed by it to be responsible and may assume that signatures on
all documents examined by it are genuine.

            (viii) Deloitte & Touche L.L.P., independent certified public
      accountants for the Partnership and the General Partner, will have
      furnished to DWR a letter, dated the date of the Closing and in form and
      substance satisfactory to DWR, to the effect that:

                  (A) Such accountant is an independent certified public
            accountant within the meaning of the 1933 Act, the CEAct, the SEC
            Regulations and the CFTC Rules with respect to the Partnership and
            the General Partner.

                  (B) In such accountant's opinion, the statements of financial
            condition of the Partnership and the General Partner and the notes
            thereto included in the Prospectus and examined by it comply as to
            form in all material respects with the applicable accounting
            requirements of the 1933 Act, the CEAct, and the SEC Regulations.

                  (C) On the basis of limited procedures not constituting an
            audit, including inquiries of officials of the General Partner
            having responsibility for financial and accounting matters
            pertaining to the Partnership, and such other inquiries and
            procedures as may be specified in such letter, nothing has come to
            such accountant's attention which causes it to believe that, as of a
            specified date not more than five business days prior to the date of
            the Closing, there has been any decrease in the Net Assets of the
            Partnership (as defined in the Limited Partnership Agreement) as
            compared to Net Assets set forth in the statement of financial
            condition of the Partnership included in the Prospectus, except as
            may be disclosed in such letter.

                  (D) On the basis of limited procedures not constituting an
            audit, including a reading of the latest available financial
            statements of the General Partner, inspection of the minute book of
            the General Partner since the date of the latest audited financial
            statements of the General Partner, inquiries of officials of the
            General Partner having responsibility for financial and 


                                      -27-
<PAGE>

            accounting matters, and such other inquiries and procedures as may
            be specified in such letter, nothing has come to such accountant's
            attention that causes it to believe that, as of a specified date not
            more than five business days prior to the date of the Closing, there
            has been any decrease in the General Partner's net worth as compared
            to net worth set forth in the statement of financial condition of
            the General Partner included in the Prospectus, except as may be
            disclosed in such letter.

            (ix) The Commodity Broker shall deliver a certificate to the parties
      hereto, in form and substance satisfactory to such parties and dated the
      date of the Closing, to the effect that the representations and warranties
      of the Commodity Broker contained herein are true and correct with the
      same effect as though expressly made at the Closing.

            (x) All agreements contemplated herein or in the Registration
      Statement or Prospectus shall have been duly executed and delivered.

            12. Indemnification.

                  (a) The Trading Advisor agrees to indemnify, defend, and hold
harmless DWR, the Partnership, the General Partner, and their affiliates and
each of their officers, directors, principals, shareholders, controlling persons
and their respective successors and assigns from and against any loss, claim,
damage, liability, cost, and expense, joint and several or otherwise, to which
any indemnitee may become subject under the 1933 Act, the 1934 Act, the CEAct,
the Blue Sky law of any jurisdiction, or otherwise (including any reasonable
investigatory, legal, and other expense incurred in connection with, and any
amounts paid in, any settlement provided that the Trading Advisor shall have
approved such settlement, and in connection with any administrative
proceedings), in respect of the offer or sale of Units, insofar as such loss,
claim, damage, liability, cost, or expense (or action in respect thereof) arises
out of, or is based upon: (i) a breach by the Trading Advisor of any
representation, warranty, or agreement in this Agreement or any certificate
delivered pursuant to this Agreement or the failure by the Trading Advisor to
perform any covenant made by the Trading Advisor herein; (ii) a material
inaccuracy in the information relating to the Trading Advisor in any Sales
Literature approved in writing by the Trading Advisor; or (iii) a misleading or
untrue statement or alleged misleading or untrue statement of a material fact
made in the Registration Statement or the Prospectus, or an omission or alleged
omission to state a material fact therein which is required to be stated therein
or necessary to make the statements therein (in the case of the Prospectus, in
light of the circumstances under which they were made) not misleading, and such
statement or omission relates specifically to the Trading Advisor or the Trading
Advisor Principals, or was made in reliance upon, and in conformity with,
written information or instructions furnished by the Trading Advisor. The
Trading Advisor will also reimburse any indemnitee for any legal, accounting,
and other expense incurred by such indemnitee in connection with investigating
or defending any loss, 


                                      -28-
<PAGE>

claim, damage, liability, cost, and expense covered by the indemnities in this
Section 12(a). This indemnity shall not relate to any matter for which the
Trading Advisor would be indemnified under paragraph (b) of this Section 12.

                  (b) The Partnership and the General Partner agree, jointly and
severally, to indemnify, hold harmless, and defend the Trading Advisor and each
of its officers, directors, principals, shareholders, controlling persons, and
its respective successors and assigns from and against any loss, claim, damage,
liability, cost, and expense, joint and several, to which any indemnitee may
become subject under the 1933 Act, the 1934 Act, the CEAct, the Blue Sky law of
any jurisdiction, or otherwise (including any reasonable investigatory, legal,
and other expense incurred in connection with, and any amounts paid in, any
settlement provided that the Partnership and the General Partner shall have
approved such settlement, and in connection with any administrative
proceedings), in respect of the offer or sale of Units, insofar as such loss,
claim, damage, liability, cost, or expense (or action in respect thereof) arises
out of, or is based upon: (i) a breach by the Partnership or the General Partner
of any representation, warranty, or agreement in this Agreement or any
certificate delivered pursuant to this Agreement or the failure by the
Partnership or the General Partner to perform any covenant made by either of
them herein; or (ii) a misleading or untrue statement or alleged misleading or
untrue statement of a material fact made in the Registration Statement, the
Prospectus, or the Sales Literature, or an omission or alleged omission to state
a material fact therein which is required to be stated therein or necessary to
make the statements therein (in the case of the Prospectus or the Sales
Literature, in light of the circumstances under which they were made) not
misleading, provided that such misleading or untrue statement or alleged
misleading or untrue statement or omission or alleged omission does not relate
to the Trading Advisor or the Trading Advisor Principals, or was not made in
reliance upon, and in conformity with, information or instructions furnished by
the Trading Advisor (provided, however, that with respect to any Sales
Literature, the Partnership and the General Partner shall not be under an
indemnification obligation only with respect to such Sales Literature as shall
have been approved in writing by the Trading Advisor), or does not result from a
breach by the Trading Advisor of any representation, warranty, or agreement in
this Agreement or any certificate delivered pursuant to this Agreement or the
failure by the Trading Advisor to perform any covenant made in this Agreement.
The Partnership will also reimburse any indemnitee for any legal, accounting,
and other expenses incurred by such indemnitee in connection with investigating
or defending any loss, claim, damage, liability, cost, and expense covered by
the indemnities in this Section 12(b). This indemnity shall not apply to any
matter for which the Partnership or the General Partner would be indemnified by
the Trading Advisor under paragraph (a) of this Section 12.

                  (c) The Partnership agrees to indemnify, defend, and hold
harmless DWR, the General Partner and their affiliates (as defined in Section
14(c) of the Limited Partnership Agreement) from and against any loss,
liability, damage, cost, or expense (including attorneys' and accountants' fees
and expenses incurred in defense of any demands, claims, or lawsuits, and any
amounts paid in any settlement), actually and reasonably incurred arising from
any act, omission, activity or conduct undertaken pursuant to this Agreement by


                                      -29-
<PAGE>

or on behalf of the Partnership, including, without limitation, any demands,
claims, or lawsuits initiated by a limited partner of the Partnership (or
assignee thereof), provided that (1) DWR or the General Partner, as applicable,
has determined in good faith that the act, omission, conduct or activity giving
rise to the claim for indemnification was in the best interests of the
Partnership, and (2) the act, omission, activity, or conduct that was the basis
for such loss, liability, damage, cost, or expense was not the result of
misconduct or negligence. The indemnity in this Section 12(c) is in addition to
any liability that the Partnership may otherwise have and will extend, upon the
same terms and conditions, to each person, if any, who controls an indemnified
person within the meaning of the 1933 Act.

                        Notwithstanding anything to the contrary contained in
the foregoing, neither DWR, the General Partner nor their affiliates shall be
indemnified by the Partnership for any losses, liabilities or expenses arising
from or out of an alleged violation of federal or state securities laws unless
(1) there has been a successful adjudication on the merits of each count
involving alleged securities law violations as to the particular indemnitee, (2)
such claims have been dismissed with prejudice on the merits by a court of
competent jurisdiction as to the particular indemnitee, or (3) a court of
competent jurisdiction approves a settlement of the claims against the
particular indemnitee and finds that indemnification of the settlement and
related costs should be made, provided, with regard to such court approval, the
indemnitee must apprise the court of the position of the SEC and the positions
of the respective securities administrators of Massachusetts, Missouri, and
Tennessee, and/or those other states and jurisdictions in which the plaintiffs
claim that they were offered or sold Units with respect to indemnification for
securities laws violations before seeking court approval for indemnification.
Furthermore, in any action or proceeding brought by a limited partner of the
Partnership in the right of the Partnership to which the General Partner, DWR or
any affiliate thereof is a party defendant, any such person shall be indemnified
only to the extent and subject to the conditions specified in this Section
12(c). The Partnership shall make advances to the General Partner, DWR or their
affiliates hereunder only if: (1) the demand, claim, or lawsuit relates to the
performance of duties or services by such persons to the Partnership; (2) such
demand, claim, or lawsuit is not initiated by a limited partner of the
Partnership; and (3) such advances are repaid, with interest at the legal rate
under Delaware law, if the person receiving such advance is ultimately found not
to be entitled to indemnification hereunder.

                  (d) DWR agrees to indemnify, defend and hold harmless the
Partnership, the General Partner, the Trading Manager, and each of their
directors, officers, principals, shareholders, controlling persons and their
respective successors and assigns from and against any loss, claim, demand,
damage, liability, cost, and expense, joint and several, to which any indemnitee
may become subject under the 1933 Act, the 1934 Act, the CEAct, the Blue Sky law
of any jurisdiction, or otherwise (including any reasonable investigatory, legal
or other expenses incurred in connection with, and any amounts paid in, any
settlement provided, that, DWR shall have approved such settlement, and in
connection with any administrative proceedings), in respect of the offer or sale
of Units, insofar as such loss, claim, demand, damage, liability, cost, or
expense (or action in respect thereof) arises out of, or is based upon: (i) a
breach by DWR of any representation, warranty, or agreement in this Agreement 


                                      -30-
<PAGE>

or any certificate delivered pursuant to this Agreement, or the failure by DWR
to perform any covenant made by DWR herein; or (ii) a misleading or untrue
statement or alleged misleading or untrue statement of a material fact made in
the Registration Statement, the Prospectus or any Sales Literature or an
omission or alleged omission to state a material fact therein which is required
to be stated therein or necessary to make the statements therein (in the case of
the Prospectus and any Sales Literature, in light of the circumstances under
which they were made) not misleading, provided that such statement or omission
relates specifically to DWR, or was made in reliance upon, and in conformity
with, written information or instructions furnished by or on behalf of DWR; or
(iii) a misleading or untrue oral statement or alleged misleading or untrue oral
statement of a material fact made by DWR or its employees in the offer or sale
of Units or an omission or alleged omission by DWR or its employees to state a
material fact which is necessary to make the oral statements made not
misleading; or (iv) a violation of any applicable law, rule, or regulation of
any jurisdiction or regulatory authority resulting from the unlawful use of the
Registration Statement, any preliminary Prospectus, the Prospectus, or any Sales
Literature by DWR or its employees. DWR will also reimburse an indemnitee for
any legal, accounting, and other expenses incurred by the indemnitee in
connection with investigating or defending any loss, claim, demand, damage,
liability, cost, and expense covered by this indemnity. The indemnity in this
Section 12(d) is in addition to any liability that DWR may otherwise have.

                  (e) Promptly after receipt by an indemnitee of notice of the
commencement of any action, claim, or proceeding to which any subsections of
Section 12 of this Agreement may apply, the indemnitee will notify the
indemnifying party in writing of the commencement thereof if a claim in respect
thereof is to be made against the indemnifying party under any of such
subsections; but the failure to so notify the indemnifying party will not
relieve the indemnifying party from any liability which the indemnifying party
may have to the indemnitee under any of such subsections, except where such
failure has materially prejudiced the indemnifying party. In case any action,
claim, or proceeding is brought against an indemnitee and the indemnitee
notifies the indemnifying party of the commencement thereof as provided above,
the indemnifying party will be entitled to participate therein and, to the
extent that the indemnifying party desires, to assume the defense thereof with
counsel selected by the indemnifying party and not disapproved by the
indemnitee, any such disapproval not to be unreasonable. After notice from the
indemnifying party to the indemnitee of the indemnifying party's election so to
assume the defense thereof as provided above, the indemnifying party will not be
liable to the indemnitee hereunder for any legal and other expenses subsequently
incurred by the indemnitee in connection with the defense thereof, other than
reasonable costs of investigation.

                        Notwithstanding the preceding paragraph, if, in any
action, claim, or proceeding as to which indemnification is or may be available
under any of Sections 12(a) - (d) hereof, an indemnitee reasonably determines
that its interests are or may be adverse, in whole or in part, to the
indemnifying party's interests or that there may be legal defenses available to
the indemnitee which are inconsistent with the defenses available to the
indemnifying party, the indemnitee may retain its own counsel in connection with
such action, 


                                      -31-
<PAGE>

claim, or proceeding and will be indemnified by the indemnifying party for any
legal and other expenses reasonably incurred in connection with investigating or
defending such action, claim, or proceeding. In no event, however, will the
indemnifying party be liable for the fees and expenses of more than one counsel
for all indemnitees in connection with any one action, claim, or proceeding or
in connection with separate but similar or related actions, claims, or
proceedings in the same jurisdiction arising out of the same general
allegations. The indemnifying party will not be liable for any settlement of any
action, claim, or proceeding effected without the indemnifying party's express
written consent, but if any action, claim, or proceeding is settled with the
indemnifying party's express written consent or if there is a final judgment for
the plaintiff in any such action, claim, or proceeding, the indemnifying party
will indemnify, defend, and hold harmless an indemnitee as provided in Sections
12(a) - (d) hereof, as applicable.

                  (f) The exculpation provisions in the Management Agreement,
the Customer Agreement, and the Limited Partnership Agreement shall not relieve
any party thereto from any liability it may have or incur to any party under
this Agreement, nor shall any party thereto be entitled to be indemnified by any
party thereto pursuant to the indemnification provisions contained in such
agreements, against any loss, liability, damage, cost or expense it may incur
under this Agreement.

                  (g) Notwithstanding anything in this Section 12 to the
contrary, John W. Henry shall have no liability to the Partnership, the General
Partner or DWR under this Agreement or in connection with the transactions
contemplated by this Agreement except for fraud and willful misconduct by John
W. Henry.

            13. Termination. The General Partner shall have the right to
terminate this Agreement at any time prior to the Closing by giving written
notice of such termination to DWR and the Trading Advisor.

            14. Survival. The respective indemnities, agreements, obligations,
representations, warranties, and other statements of the parties hereto set
forth in this Agreement or in any certificates delivered pursuant hereto will
remain in full force and effect (regardless of any investigation or any
statement as to the results thereof made by, or on behalf of, DWR, the
Partnership, the General Partner, the Trading Advisor, or any officer, director,
controlling person, or agent of any of the foregoing) and will survive the
delivery of and payment for Units and the termination or expiration of this
Agreement, and the Closing.

            15. Notices. All notices required or desired to be given under this
Agreement must be in writing and will be effective when given personally on the
date delivered or, when given by mail, on the date of receipt, addressed as
follows (or to such other address as the party entitled to notice hereafter
designates in accordance with the terms hereof):



                                      -32-
<PAGE>

            if to the Partnership or the General Partner:

                  Dean Witter Portfolio Strategy Fund L.P.
                  c/o Demeter Management Corporation
                  Two World Trade Center, 62nd Floor
                  New York, New York  10048

                  Attn: Mr. Mark J. Hawley
                        President

            if to the Trading Advisor:

                  John W. Henry & Company, Inc.
                  One Glendinning Place
                  Westport, Connecticut  06880

                  Attn: Ms. Elizabeth A.M. Kenton
                        Senior Vice President


            if to DWR:

                  Dean Witter Reynolds Inc.
                  Two World Trade Center, 62nd Floor
                  New York, New York  10048

                  Attn: Mr. Mark J. Hawley
                        Executive Vice President

            16. Successors. This Agreement will be binding upon and inure solely
to the benefit of DWR, the Trading Advisor, the Partnership, and the General
Partner (and to the extent provided in Section 12 hereof, the officers,
directors, controlling persons, and agents of the Partnership, the Trading
Advisor, the General Partner, and DWR and the respective heirs, executors,
administrators, successors, and assigns of such persons), and no other person
will acquire or have any rights under or by virtue of this Agreement. No
purchaser of Units will be deemed to be a successor or assign to any party
hereto merely by reason of such purchase.

            17. Assignment; Amendment. This Agreement may not be assigned by any
party hereto without the prior express written consent of all other parties.
This Agreement may not be amended except by the express written consent of all
parties hereto.

            18. Governing Law; Submission to Jurisdiction; Exclusive
Jurisdiction. This Agreement shall be governed by and construed in accordance
with the laws of the State of New York, without regard to principles of
conflicts of laws. If any action or proceeding shall be brought by a party to
this Agreement to enforce any right or remedy under this Agreement, 


                                      -33-
<PAGE>

each party hereto hereby consents and will submit to the jurisdiction of the
courts of the State of New York or any federal court sitting in the County, City
and State of New York. Any action or proceeding brought by any party to this
Agreement to enforce any right, assert any claim or obtain any relief whatsoever
in connection with this Agreement shall be brought by such party exclusively in
the courts of the State of New York or any federal court sitting in the County,
City and State of New York.

            19. Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.


                                      -34-
<PAGE>

      If the foregoing Agreement is satisfactory to you, please so indicate by
signing at the place provided below.


                                       DEAN WITTER PORTFOLIO
                                         STRATEGY FUND L.P.
                                       By:  Demeter Management
                                              Corporation,
                                              General Partner


                                       By:___________________________________
                                          Mark J. Hawley
                                          President


Accepted and Agreed:                   DEMETER MANAGEMENT CORPORATION

DEAN WITTER REYNOLDS INC.
                                       By:___________________________________
                                          Mark J. Hawley
                                          President
By:_____________________________
         Mark J. Hawley
         Executive Vice President      JOHN W. HENRY & COMPANY, INC.


                                       By:___________________________________



                                      -35-

<PAGE>
                                                                 Exhibit 3.02(a)
                            Certificate of Amendment
                                       To
                             Certificate of Limited
                                   Partnership
               of Dean Witter Principal Secured Futures Fund L.P.

            DEAN WITTER PRINCIPAL SECURED FUTURES FUND L.P. (the "Partnership")
a limited partnership formed on August 28, 1990, under the Delaware Revised
Uniform Limited Partnership Act (the "Act") for purposes of amending its
Certificate of Limited Partnership pursuant to Section 17-202 of the Act, hereby
certifies that effective July 11, 1996, Paragraph 1 of the Certificate of
Limited Partnership is amended to read in its entirety as follows:

            (1) The name of the Partnership is Dean Witter Portfolio Strategy
Fund L.P.

            This Certificate of Amendment was duly executed in accordance with,
and is being filed pursuant to, the provisions of Section 17-202 of the Act.

            IN WITNESS WHEREOF, this Certificate of Amendment has been duly
executed by the General Partner of the Partnership duly authorized as of the
24th day of July, 1996.

                                     DEAN WITTER PORTFOLIO STRATEGY FUND L.P.

                                     By: DEMETER MANAGEMENT CORPORATION


                                         By: /s/ Mark J. Hawley
                                             ----------------------------------
                                             Mark J. Hawley
                                             President


<PAGE>
                                                                    Exhibit 5.01
                                  March 27, 1997

Dean Witter Reynolds Inc.
Demeter Management Corporation
Two World Trade Center
62nd Floor
New York, NY  10048

            Re:  Dean Witter Portfolio Strategy Fund L.P.

Ladies and Gentlemen:

            We have acted as your counsel in connection with the organization of
Dean Witter Portfolio Strategy Fund L.P., formerly named Dean Witter Principal
Secured Futures Fund L.P., a Delaware limited partnership (the "Partnership"),
and the preparation and filing with the Securities and Exchange Commission of a
Registration Statement on Form S-1 (the "Registration Statement") relating to
the registration under the Securities Act of 1933, as amended, of 50,000 units
of limited partnership interest of the Partnership ("Units"). In such
connection, we have assisted in the preparation of the Limited Partnership
Agreement of the Partnership and in the preparation and filing with the
Secretary of State of the State of Delaware of the Certificate of Limited
Partnership, each as amended, of the Partnership. We have also examined such
other documents, records, and applicable law as we have deemed necessary or
appropriate for purposes of rendering this opinion.

            Based upon the foregoing, we are of the opinion that upon (1) the
sale of the Units described in the Registration Statement in the manner and on
the terms and conditions set forth therein, and (2) the identification of the
purchasers of Units as limited partners on the books and records of the
Partnership, the Units will be validly issued, fully-paid, and non-assessable.
We are also of the opinion that a limited partner's liability for the losses and
obligations of the Partnership solely by reason of such person being a limited
partner of the
<PAGE>

Dean Witter Reynolds Inc.
Demeter Management Corporation        - 2 -                      March 27, 1997

Partnership will not exceed such limited partner's unredeemed capital
contribution, undistributed profits, if any, and any distributions and amounts
received upon redemption of Units with interest thereon.

            We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement.

                                          Very truly yours,


                                      /s/ CADWALADER, WICKERSHAM & TAFT

                                          CADWALADER, WICKERSHAM & TAFT


<PAGE>
                                                                    Exhibit 8.01

                                  March 27, 1997

Dean Witter Reynolds Inc.
Demeter Management Corporation
Two World Trade Center
62nd Floor
New York, NY  10048

            Re:  Dean Witter Portfolio Strategy Fund L.P.

Ladies and Gentlemen:

            We have acted as your counsel in connection with the preparation and
filing with the Securities and Exchange Commission of a Registration Statement
on Form S-1 (the "Registration Statement") relating to the registration under
the Securities Act of 1933, as amended, of 50,000 units of limited partnership
interest ("Units") of Dean Witter Portfolio Strategy Fund L.P., formerly named
Dean Witter Principal Secured Futures Fund L.P., a Delaware limited partnership
(the "Partnership"). We have also examined such documents, records, and
applicable law as we have deemed necessary for purposes of rendering this
opinion.

            Based upon the foregoing, we hereby confirm our opinion under the
heading "Material Federal Income Tax Considerations" in the Prospectus
constituting a part of the Registration Statement (the "Prospectus") that the
Partnership will be taxed as a partnership for federal income tax purposes. We
also confirm our opinion that the descriptions set forth under the heading
"Material Federal Income Tax Considerations" in the Prospectus correctly
describe the material federal income tax consequences to United States taxpayers
who are individuals of acquiring, owning, and disposing of Units.
<PAGE>

Dean Witter Reynolds Inc.
Demeter Management Corporation        - 2 -                      March 27, 1997

            We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement, and to the references made to us in the Prospectus under
the captions "Summary of the Prospectus--Tax Considerations," "Risk Factors --
Taxation and Regulatory Risks," "Purchases by Employee Benefit Plans -- ERISA
Considerations," "Material Federal Income Tax Considerations," "State and Local
Income Tax Aspects," and "Legal Matters."


                                    Very truly yours,


                                /s/ CADWALADER, WICKERSHAM & TAFT
         
                                    CADWALADER, WICKERSHAM & TAFT


<PAGE>
                                                                   Exhibit 10.01

                     AMENDED AND RESTATED CUSTOMER AGREEMENT

            THIS AMENDED AND RESTATED CUSTOMER AGREEMENT (this "Agreement") made
as of the 1st day of September, 1996, by and between DEAN WITTER PORTFOLIO
STRATEGY FUND L.P., a Delaware limited partnership (the "Partnership"), and DEAN
WITTER REYNOLDS INC., a Delaware corporation (the "Broker" or "DWR");

                              W I T N E S S E T H:

            WHEREAS, the Partnership has been organized pursuant to a Limited
Partnership Agreement dated as of August 28, 1990 (which may be amended; the
"Limited Partnership Agreement"), and a Certificate of Limited Partnership filed
in the office of the Secretary of State of the State of Delaware on August 28,
1990, and amended on July 24, 1996 (which may be further amended) with Demeter
Management Corporation, a Delaware corporation ("Demeter" or the "General
Partner"), acting as general partner, to trade, buy, sell, spread or otherwise
acquire, hold, or dispose of commodities (including, but not limited to, foreign
currencies, mortgage-backed securities, money market instruments, financial
instruments, and any other securities or items which are now, or may hereafter
be, the subject of futures contract trading), commodity futures contracts,
commodity forward contracts, foreign exchange commitments, options on physical
commodities and on futures contracts, spot (cash) commodities and currencies,
and any rights pertaining thereto (collectively "futures interests") and
securities (such as United States Treasury securities) approved by the Commodity
Futures Trading Commission (the "CFTC") for investment of customer funds;
<PAGE>

            WHEREAS, the Partnership has entered into one or more management
agreements (each, a "Management Agreement") (which may be amended) with one or
more certain trading advisors (each, a "Trading Advisor") which provide that
each such Trading Advisor has authority and responsibility, except in certain
situations specified therein, to direct the investment and reinvestment of the
assets of the Partnership which are allocated to each such Trading Advisor in
futures interests for the period set forth in such Management Agreement;

            WHEREAS, the Partnership and the Broker entered into that certain
Customer Agreement, dated as of October 30, 1990 (the "Original Customer
Agreement"), whereby the Broker agreed to perform futures interest brokerage and
certain other services for the Partnership; and

            WHEREAS, the Partnership and the Broker wish to amend and restate
the Original Customer Agreement to set forth the terms and conditions upon which
the Broker will continue to perform futures interest brokerage and certain other
services for the Partnership.

            NOW, THEREFORE, the parties hereto hereby agree as follows:

            1. Duties of the Broker. The Broker agrees to execute futures
interests brokerage transactions on behalf of the Partnership in accordance with
instructions provided by a Trading Advisor, and the Partnership agrees to retain
the Broker as commodity broker for the term of this Agreement.


                                      -2-
<PAGE>

            The Broker agrees to furnish to the Partnership as soon as
practicable all of the information from time to time in its possession which
Demeter, as the general partner of the Partnership, is required to furnish to
the limited partners of the Partnership pursuant to the Partnership's Limited
Partnership Agreement as from time to time in effect, or as required by
applicable law, rules or regulations, and to perform such other services for the
Partnership as are set forth herein and in the Partnership's then most recent
prospectus as filed with the Securities and Exchange Commission (the
"Prospectus") relating to the offering of units of limited partnership interest
of the Partnership (the "Units"), and in any amendment or supplement to the
Prospectus. Capitalized terms used herein but not otherwise defined herein shall
have the meanings ascribed to such terms in the Prospectus.

            Notwithstanding any provision of this Agreement to the contrary, the
Broker shall assume financial responsibility for any error committed by it in
executing or clearing orders for the purchase or sale of futures interests for
the Partnership's account. However, the Broker shall not be responsible for
errors committed by a Trading Advisor. The Broker and each Trading Advisor each
shall have an affirmative obligation to promptly notify the other party of its
own errors.

            2. Obligations and Expenses. Except as otherwise set forth herein
and in the Prospectus, the Partnership, and not the Broker, shall be responsible
for all taxes, and all other obligations or expenses of the Partnership,
including, without limitation, brokerage commissions to the Broker, management
and incentive fees to the Trading Advisors, floor brokerage fees, exchange fees,
clearinghouse fees, "give up" or transfer fees, NFA fees,


                                      -3-
<PAGE>

forward contract transaction fees, costs associated with taking delivery of
futures interests, fees for the use of DWR's institutional execution desk and
for overnight execution facilities, and fees for the execution of cash contract
transactions relating to exchange of futures for physicals ("EFP") transactions
(collectively, "transaction fees and costs").

            3. Agreement Non-exclusive. The Broker shall be free to render
services of the nature to be rendered to the Partnership hereunder to other
persons or entities in addition to the Partnership, and the parties acknowledge
that the Broker may render such services to additional entities similar in
nature to the Partnership, including without limitation other partnerships
organized with Demeter as their general partner. It is expressly understood and
agreed that this Agreement is non-exclusive and that the Partnership has no
obligation to execute any or all of its trades for futures interests through the
Broker. The parties acknowledge that the Partnership may execute and clear
trades for futures interests through such other broker or brokers as Demeter may
direct from time to time. The Partnership's utilization of one or more
additional commodity brokers shall neither terminate this Agreement nor modify
in any regard the respective rights and obligations of the Partnership and the
Broker hereunder.

            4. Compensation of the Broker. The Partnership will pay the Broker
brokerage commissions at a roundturn rate of 80% of the Broker's published
non-member rates for speculative accounts, which covers both the taking and
liquidation of a position. The Partnership will pay separately for all
transaction fees and costs. The Partnership will pay to the Broker a fee for
each roundturn forward contract which will average between $3 and $6


                                      -4-
<PAGE>

per roundturn contract, depending upon the size of the trades. The Broker will
not charge the Partnership a mark-up or spread on such forward trading. The
Broker will charge a transaction fee of approximately $2.50 for each cash
contract transaction relating to an EFP transaction, and will charge for the use
of the institutional execution desk and overnight execution facilities at rates
of up to $3 per roundturn.

            The Partnership will pay the Broker brokerage commissions for
currency forward contract transactions at rates established with reference to
the brokerage commission rate charged on exchange-traded currency futures
contracts. The Broker may from time to time adjust the United States dollar size
of currency forward contracts so that the brokerage commission rate charged on
such contracts will approximate the rate charged on exchange-traded currency
futures contracts of similar United States dollar value.

            Brokerage commissions, together with transaction fees and costs,
with respect to the Trading Advisor's allocated Net Assets will be capped at
13/20 of 1% per month (in the event that the Trading Advisor employs multiple
trading systems in trading on behalf of the Partnership, the foregoing cap is
applied on a per trading system basis) of the Partnership's Net Assets
(determined before redemptions and distributions as of month-end) allocated to
the Trading Advisor or trading system as of the last day of each month (a
maximum 7.8% annual rate). In addition, the aggregate of (i) brokerage
commissions and transaction fees and costs payable by the Partnership and (ii)
the net excess interest and compensating balance benefits to DWR, after
crediting the Partnership with interest, shall not exceed 14% annually of the
Partnership's average monthly Net Assets as of the last day of each month during
a calendar 


                                      -5-
<PAGE>

year. Any brokerage commissions and transaction fees and costs in excess of such
caps shall be borne or paid by the Broker or an affiliate and shall not be
reimbursed by the Partnership. As long as redemption charges are imposed on
Limited Partners, the foregoing caps may not be increased. Thereafter, none of
such caps may be increased unless Limited Partners are given notice thereof
(including a description of redemption and voting rights of Limited Partners)
and an opportunity to redeem their Units.

            If at any time an amount is due and owing to the Broker for services
rendered pursuant to the terms of this Agreement, the Broker shall only have
recourse against the assets of the Partnership.

            5. Investment Discretion. The parties recognize that the Broker
shall have no authority to direct the futures interests investments to be made
for the Partnership's account, but shall execute only such orders for the
Partnership's account as the Trading Advisor and the General Partner may direct
from time to time. However, the parties agree that the Broker, and not the
Trading Advisor, shall have the authority and responsibility with regard to the
investment, maintenance, and management of the Partnership's assets that are
held in securities approved by the CFTC for the investment of customer funds or
in cash as provided in Section 6 hereof.

            6. Investment of Partnership Funds. The Partnership shall deposit
its assets in a commodity trading account with the Broker. The Partnership's
assets deposited with the Broker will be segregated in accordance with Section
4d(2) of the Commodity Exchange Act and CFTC regulations and will either be
invested in securities approved by the CFTC


                                      -6-
<PAGE>

for investment of customer funds or will be held in non-interest bearing bank
accounts at a bank or banks selected by DWR.

            Prior to the date of the Closing (as defined in the Prospectus), the
Broker will credit the Partnership with interest income at month-end in an
amount equal to 80% of the Partnership's average daily Net Assets at a rate
equal to the average yield on 13-week U.S. Treasury Bills issued during such
month. Effective as of the date of the Closing, the Broker will credit the
Partnership at each month-end with interest income as if 80% of the
Partnership's average daily Net Assets for the month were invested at the rate
earned by the Broker on its U.S. Treasury Bill investments with customer
segregated funds. The Broker will retain any interest earned in excess of the
interest paid to the Partnership. All of such funds will be available for margin
for the Partnership's trading. For the purpose of such interest payments, Net
Assets will not include monies due to the Partnership on or with respect to
forward contracts and other futures interests but not actually received by it
from banks, brokers, dealers, and other persons. If the Partnership directly
invests in securities approved by the CFTC for investment of customer funds, the
Partnership will receive the interest on such securities. The Partnership
understands that it will not receive any other interest income on its assets
held by the Broker. The Partnership's assets held by the Broker may be used as
margin solely for the Partnership's trading.

            Ownership of the right to receive interest on the Partnership's
assets pursuant to the preceding paragraph shall be reflected and maintained,
and may be transferred only, on the books and records of the Broker. Any
purported transfer of such ownership shall not be


                                      -7-
<PAGE>

effective or recognized until such transfer shall have been recorded on the
books and records of the Broker.

            7. Customer Agreements. Upon the request of the Broker, the
Partnership shall execute and deliver to the Broker the Futures Customer
Agreement referred to in Section 16 hereof and annexed hereto and such other
similar documents as the Broker shall reasonably require from time to time.

            8. Standard of Liability and Indemnity. Subject to Section 1 hereof,
the Broker and its affiliates (as defined below) shall not be liable to the
Partnership, the Limited Partners, or any of its or their respective successors
or assigns, for any act, omission, conduct, or activity undertaken by the Broker
on behalf of the Partnership which the Broker determines, in good faith, to be
in the best interests of the Partnership, unless such act, omission, conduct, or
activity by the Broker or its affiliates constituted misconduct or negligence.

            The Partnership shall indemnify, defend and hold harmless the Broker
and its affiliates from and against any loss, liability, damage, cost or expense
(including attorneys' and accountants' fees and expenses incurred in the defense
of any demands, claims, or lawsuits) actually and reasonably incurred arising
from any act, omission, conduct, or activity undertaken by the Broker on behalf
of the Partnership, including, without limitation, any demands, claims or
lawsuits initiated by a Limited Partner of the Partnership (or assignee
thereof); provided that (i) the Broker has determined, in good faith, that the
act, omission, conduct, or activity giving rise to the claim for indemnification
was in the best interests of the Partnership, and (ii) the act, omission,
conduct or activity that was the basis for such loss,


                                      -8-
<PAGE>

liability, damage, cost or expense was not the result of misconduct or
negligence. Notwithstanding the foregoing, no indemnification of the Broker or
its affiliates by the Partnership shall be permitted for any losses, liabilities
or expenses arising from or out of an alleged violation of federal or state
securities laws unless (i) there has been a successful adjudication on the
merits of each count involving alleged securities law violations as to the
particular indemnitee, or (ii) such claims have been dismissed with prejudice on
the merits by a court of competent jurisdiction as to the particular indemnitee,
or (iii) a court of competent jurisdiction approves a settlement of the claims
against the particular indemnitee and finds that indemnification of the
settlement and related costs should be made, provided, with regard to such court
approval, the indemnitee must apprise the court of the position of the SEC and
the positions of the respective securities administrators of Massachusetts,
Missouri, Tennessee and/or those other states and jurisdictions in which the
plaintiffs claim that they were offered or sold Units, with respect to
indemnification for securities laws violations before seeking court approval for
indemnification. Furthermore, in any action or proceeding brought by a Limited
Partner in the right of the Partnership to which the Broker or any affiliate
thereof is a party defendant, any such person shall be indemnified only to the
extent and subject to the conditions specified in the Delaware Revised Uniform
Limited Partnership Act, as amended, and this Section 8. The Partnership shall
make advances to the Broker or its affiliates hereunder only if: (i) the demand,
claim, lawsuit or legal action relates to the performance of duties or services
by such persons to the Partnership; (ii) such demand, claim, lawsuit or legal
action is not initiated by a Limited Partner; and (iii) such advances are
repaid, with interest at 


                                      -9-
<PAGE>

the legal rate under Delaware law, if the person receiving such advance is
ultimately found not to be entitled to indemnification hereunder.

            The Broker shall indemnify, defend and hold harmless the Partnership
and its successors or assigns from and against any losses, liabilities, damages,
costs and expenses (including in connection with the defense or settlement of
claims; provided the Broker has approved such settlement) incurred as a result
of the activities of the Broker or its affiliates, provided that the act,
omission, conduct, or activity giving rise to the claim for indemnification was
the result of bad faith, misconduct or negligence.

            The indemnities provided in this Section 8 by the Partnership to the
Broker and its affiliates shall be inapplicable in the event of any losses,
liabilities, damages, costs or expenses arising out of, or based upon, any
material breach of any warranty, covenant, or agreement of the Broker contained
in this Agreement to the extent caused by such event. Likewise, the indemnities
provided in this Section 8 by the Broker to the Partnership and any of its
successors and assigns shall be inapplicable in the event of any losses,
liabilities, damages, costs or expenses arising out of, or based upon, any
material breach of any warranty, covenant, or agreement of the Partnership
contained in this Agreement to the extent caused by such event.

            As used in this Section 8, the term "affiliate" of the Broker shall
mean: (i) any natural person, partnership, corporation, association, or other
legal entity directly or indirectly owning, controlling, or holding with power
to vote 10% or more of the outstanding voting securities of the Broker; (ii) any
partnership, corporation, association, or other legal entity


                                      -10-
<PAGE>

10% or more of whose outstanding voting securities are directly or indirectly
owned, controlled, or held with power to vote by the Broker; (iii) any natural
person, partnership, corporation, association, or other legal entity directly or
indirectly controlling, controlled by, or under common control with, the Broker;
or (iv) any officer or director of the Broker. Notwithstanding the foregoing,
"affiliates" for purposes of this Section 8 shall include only those persons
acting on behalf of the Broker and performing services for the Partnership
within the scope of the authority of the Broker, as set forth in this Agreement.

            9. Term. This Agreement shall continue in effect until terminated by
either party giving not less than 60 days' prior written notice of termination
to the other party. Any such termination by either party shall be without
penalty.

            10. Complete Agreement. This Agreement constitutes the entire
agreement between the parties with respect to the matters referred to herein,
and no other agreement, verbal or otherwise, shall be binding as between the
parties unless in writing and signed by the party against whom enforcement is
sought.

            11. Assignment. This Agreement may not be assigned by either party
without the express written consent of the other party.

            12. Amendment. This Agreement may not be amended except by the
written consent of the parties and provided such amendment is consistent with
the Limited Partnership Agreement.


                                      -11-
<PAGE>

            13. Notices. All notices required or desired to be delivered under
this Agreement shall be in writing and shall be effective when delivered
personally on the day delivered, or when given by registered or certified mail,
postage prepaid, return receipt requested, on the day of receipt, addressed as
follows (or to such other address as the party entitled to notice shall
hereafter designate in accordance with the terms hereof):

            if to the Partnership:

                  DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                  c/o Demeter Management Corporation
                  Two World Trade Center, 62nd Floor
                  New York, New York 10048
                  Attention:  Mark J. Hawley

            if to the Broker:

                  DEAN WITTER REYNOLDS INC.
                  Two World Trade Center, 62nd Floor
                  New York, New York  10048
                  Attention:  Mark J. Hawley

            14. Survival. The provisions of this Agreement shall survive the
termination of this Agreement with respect to any matter arising while this
Agreement was in effect.

            15. Headings. Headings of Sections herein are for the convenience of
the parties only and are not intended to be a part of or to affect the meaning
or interpretation of this Agreement.

            16. Incorporation by Reference. The Futures Customer Agreement
annexed hereto is hereby incorporated by reference herein and made a part hereof
to the same extent as if such document were set forth in full herein. If any
provision of this Agreement is or at any 


                                      -12-
<PAGE>

time becomes inconsistent with the annexed document, the terms of this Agreement
shall control.


                                      -13-
<PAGE>

            IN WITNESS WHEREOF, this Agreement has been executed for and on
behalf of the undersigned as of the day and year first above written.


                              DEAN WITTER PORTFOLIO STRATEGY FUND L.P.

                              By: Demeter Management Corporation,
                                  General Partner


                              By: __________________________________
                                        Mark J. Hawley
                                        President


                              DEAN WITTER REYNOLDS INC.


                              By: __________________________________
                                        Mark J. Hawley
                                        Executive Vice President


                                      -14-
<PAGE>

Futures Customer Agreement

In consideration of the acceptance by Dean Witter Reynolds Inc. ("DWR") of one
or more accounts of the undersigned ("Customer") (if more than one account is
carried by DWR, all are covered by this Agreement and are referred to
collectively as the "Account") and DWR's agreement to act as Customer's broker
for the execution, clearance and/or carrying of transactions for the purchase
and sale of commodity interests, including commodities, commodity futures
contracts and commodity options, Customer agrees as follows:

1.    APPLICABLE RULES AND REGULATIONS - The Account and each transaction
      therein shall be subject to the terms of this Agreement and to (a) all
      applicable laws and the regulations, rules and orders (collectively
      "regulations") of all regulatory and self-regulatory organizations
      having jurisdiction and (b) the constitution, by-laws, rules,
      regulations, orders, resolutions, interpretations and customs and
      usages (collectively "rules") of the market and any associated clearing
      organization (each an "exchange") on or subject to the rules of which
      such transaction is executed and/or cleared.  The reference in the
      preceding sentence to exchange rules is solely for DWR's protection and
      DWR's failure to comply therewith shall not constitute a breach of this
      Agreement or relieve Customer of any obligation or responsibility under
      this Agreement.  DWR shall not be liable to Customer as a result of any
      action by DWR, its officers, directors, employees or agents to comply
      with any rule or regulation.

2.    PAYMENTS TO DWR - Customer agrees to pay to DWR immediately on request
      (a) commissions, fees and service charges as are in effect from time to
      time together with all applicable regulatory and self-regulatory
      organization and exchange fees, charges and taxes; (b) the amount of
      any debit balance or any other liability that may result from
      transactions executed for the account; and (c) interest on such debit
      balance or liability at the prevailing rate charged by DWR at the time
      such debit balance or liability arises and service charges on any such
      debit balance or liability together with any reasonable costs and
      attorney's fees incurred in collecting any such debit balance or
      liability.  Customer acknowledges that DWR may charge commissions at
      other rates to other customers.

3.    CUSTOMER'S DUTY TO MAINTAIN ADEQUATE MARGIN - Customer shall at all
      times and without prior notice or demand from DWR maintain adequate
      margins in the account so as continually to meet the original and
      maintenance margin requirements established by DWR for Customer.  DWR
      may change such requirements from time to time at DWR's discretion.
      Such margin requirements may exceed the margin requirements set by any
      exchange or other regulatory authority and may vary from DWR's
      requirements for other customers.  Customer agrees, when so requested,
      immediately to wire transfer margin funds and to furnish DWR with names
      of bank officers for immediate verification of such transfers.
      Customer acknowledges and agrees that DWR may receive and retain as its
      own any interest, increment, profit, gain
<PAGE>

      or benefit directly or indirectly, accruing from any of the funds DWR
      receives from Customer.

4.    DELIVERY; OPTION EXERCISE

      (a)   Customer acknowledges that the making or accepting of delivery
            pursuant to a futures contract may involve a much higher degree of
            risk than liquidating a position by offset. DWR has no control over
            and makes no warranty with respect to grade, quality or tolerances
            of any commodity delivered in fulfillment of a contract.

      (b)   Customer agrees to give DWR timely notice and immediately on
            request to inform DWR if Customer intends to make or take
            delivery under a futures contract or to exercise an option
            contract.  If so requested, Customer shall provide DWR with
            satisfactory assurances that Customer can fulfill Customer's
            obligation to make or take delivery under any contract.  Customer
            shall furnish DWR with property deliverable by it under any
            contract in accordance with DWR's instructions.

      (c)   DWR shall not have any obligation to exercise any long option
            contract unless Customer has furnished DWR with timely exercise
            instructions and sufficient initial margin with respect to each
            underlying futures contract.

5.    FOREIGN CURRENCY - If DWR enters into any transaction for Customer
      effected in a currency other than U.S. dollars: (a) any profit or loss
      caused by changes in the rate of exchange for such currency shall be
      for Customer's account and risk and (b) unless another currency is
      designated in DWR's confirmation of such transaction, all margin for
      such transaction and the profit or loss on the liquidation of such
      transaction shall be in U.S. dollars at a rate of exchange determined
      by DWR in its discretion on the basis of then prevailing market rates
      of exchange for such foreign currency.

6.    DWR MAY LIMIT POSITIONS HELD - Customer agrees that DWR, at its
      discretion, may limit the number of open positions (net or gross) which
      Customer may execute, clear and/or carry with or acquire through it.
      Customer agrees (a) not to make any trade which would have the effect
      of exceeding such limits, (b) that DWR may require Customer to reduce
      open positions carried with DWR and (c) that DWR may refuse to accept
      orders to establish new positions.  DWR may impose and enforce such
      limits, reduction or refusal whether or not they are required by
      applicable law, regulations or rules.  Customer shall comply with all
      position limits established by any regulatory or self-regulatory
      organization or any exchange.  In addition, Customer agrees to notify
      DWR promptly if customer is required to file position reports with any
      regulatory or self-regulatory organization or with any exchange.

7.    NO WARRANTY AS TO INFORMATION OR RECOMMENDATION - Customer acknowledges
      that:


                                      -2-
<PAGE>

      (a)   Any market recommendations and information DWR may communicate to
            Customer, although based upon information obtained from sources
            believed by DWR to be reliable, may be incomplete and not subject to
            verification;

      (b)   DWR makes no representation, warranty or guarantee as to, and shall
            not be responsible for, the accuracy or completeness of any
            information or trading recommendation furnished to Customer;

      (c)   recommendations to Customer as to any particular transaction at any
            given time may differ among DWR's personnel due to diversity in
            analysis of fundamental and technical factors and may vary from any
            standard recommendation made by DWR in its market letters or
            otherwise; and

      (d)   DWR has no obligation or responsibility to update any market
            recommendations or information it communicates to Customer.

      Customer understands that DWR and its officers, directors, affiliates,
      stockholders, representatives or associated persons may have positions in
      and may intend to buy or sell commodity interests which are the subject of
      market recommendations furnished to Customer, and that the market
      positions of DWR or any such officer, director, affiliate, stockholder,
      representative or associated person may or may not be consistent with the
      recommendations furnished to Customer by DWR.

8.    LIMITS ON DWR DUTIES; LIABILITY - Customer agrees:

      (a)   that DWR has no duty to apprise Customer of news or of the value of
            any commodity interests or collateral pledged or in any way to
            advise Customer with respect to the market;

      (b)   that the commissions which DWR receives are consideration solely
            for the execution, reporting and carrying of Customer's trades;

      (c)   that if Customer has authorized any third party or parties to
            place orders or effect transactions on behalf of Customer in any
            Account, each such party has been selected by Customer based on
            its own evaluation and assessment of such party and that such
            party is solely the agent of Customer, and if any such party
            allocates commodity interests among its customers, Customer has
            reviewed each such party's commodity interest allocation system,
            has satisfied itself that such allocation system is fair and will
            seek recovery solely from such party to recover any damages
            sustained by Customer as the result of any allocation made by
            such party; and

      (d)   to waive any and all claims, rights or causes of action which
            Customer has or may have against DWR or its officers, employees
            and agents (i) arising in whole or in part, directly or
            indirectly, out of any act or omission of any person, whether or
            not legally deemed an agent of DWR, who refers or


                                      -3-
<PAGE>

            introduces Customer to DWR or places orders for Customer and (ii)
            for any punitive damages and to limit any claims arising out of this
            Agreement or the Account to Customer's direct out-of-pocket damages.

9.    EXTRAORDINARY EVENTS - Customer shall have no claim against DWR for any
      loss, damage, liability, cost, charge, expense, penalty, fine or tax
      caused directly or indirectly by (a) governmental, court, exchange,
      regulatory or self-regulatory organization restrictions, regulations,
      rules, decisions or orders, (b) suspension or termination of trading,
      (c) war or civil or labor disturbance, (d) delay or inaccuracy in the
      transmission or reporting of orders due to a breakdown or failure of
      computer services, transmission or communication facilities, (e) the
      failure or delay by any exchange to enforce its rules or to pay to DWR
      any margin due in respect of Customer's Account, (f) the failure or
      delay by any bank, trust company, clearing organization or other person
      which, pursuant to applicable exchange rules, is holding Customer
      funds, securities or other property to pay or deliver the same to DWR
      or (g) any other cause or causes beyond DWR's control.

10.   INDEMNIFICATION OF DWR - Customer agrees to indemnify, defend and hold
      harmless DWR and its officers, employees and agents from and against any
      loss, cost, claim, damage (including any consequential cost, loss or
      damage), liability or expense (including reasonable attorneys' fees) and
      any fine, sanction or penalty made or imposed by any regulatory or
      self-regulatory authority or any exchange as the result, directly or
      indirectly, of:

      (a)   Customer's failure or refusal to comply with any provision of this
            Agreement or perform any obligation on its part to be performed
            pursuant to this Agreement; and

      (b)   Customer's failure to timely deliver any security, commodity or
            other property previously sold by DWR on Customer's behalf.

11    NOTICES; TRANSMITTALS - DWR shall transmit all communications to Customer
      at Customer's address, telefax or telephone number set forth in the
      accompanying Futures Account Application or to such other address as
      Customer may hereafter direct in writing. Customer shall transmit all
      communications to DWR (except routine inquiries concerning the Account) to
      130 Liberty Street, New York, NY 10006, Attention: Futures Compliance
      Officer. All payments and deliveries to DWR shall be made as instructed by
      DWR from time to time and shall be deemed received only when actually
      received by DWR.

12.   CONFIRMATION CONCLUSIVE - Confirmation of trades and any other notices
      sent to Customer shall be conclusive and binding on Customer unless
      Customer or Customer's agent notifies DWR to the contrary (a) in the
      case of an oral report, orally at the time received by Customer or its
      agent or (b) in the case of a written report or notice, in writing
      prior to opening of trading on the business day next following receipt


                                      -4-
<PAGE>

      of the report.  In addition, if Customer has not received a written
      confirmation that a commodity interest transaction has been executed
      within three business days after Customer has placed an order with DWR
      to effect such transaction, and has been informed or believes that such
      order has been or should have been executed, then Customer immediately
      shall notify DWR thereof.  Absent such notice, Customer conclusively
      shall be deemed estopped to object and to have waived any such
      objection to the failure to execute or cause to be executed such
      transaction.  Anything in this Section 12 withstanding, neither
      Customer nor DWR shall be bound by any transaction or price reported in
      error.

13.   SECURITY INTEREST - All money and property ("collateral") now or at any
      future time held in Customer's Account, or otherwise held by DWR for
      Customer, is subject to a security interest in DWR's favor to secure any
      indebtedness at any time owing to it by Customer. DWR, in its discretion,
      may liquidate any collateral to satisfy any margin or Account deficiencies
      or to transfer the collateral to the general ledger account of DWR.

14.   TRANSFER OF FUNDS - At any time and from time to time and without prior
      notice to Customer, DWR may transfer from one account to another
      account in which Customer has any interest, such excess funds,
      equities, securities or other property as in DWR's judgment may be
      required for margin, or to reduce any debit balance or to reduce or
      satisfy any deficits in such other accounts except that no such
      transfer may be made from a segregated account subject to the Commodity
      Exchange Act to another account maintained by Customer unless either
      Customer has authorized such transfer in writing or DWR is effecting
      such transfer to enforce DWR's security interest pursuant to Section
      13.  DWR promptly shall confirm all transfers of funds made pursuant
      hereto to Customer in writing.

15.   DWR'S RIGHT TO LIQUIDATE CUSTOMER POSITIONS - In addition to all other
      rights of DWR set forth in this Agreement:

      (a)   when directed or required by a regulatory or self-regulatory
            organization or exchange having jurisdiction over DWR or the
            Account;

      (b)   whenever, in its discretion, DWR considers it necessary for its
            protection because of margin requirements or otherwise;

      (c)   if Customer or any affiliate of Customer repudiates, violates,
            breaches or fails to perform on a timely basis any term, covenant or
            condition on its part to be performed under this Agreement or
            another agreement with DWR;

      (d)   if a case in bankruptcy is commenced or if a proceeding under any
            insolvency or other law for the protection of creditors or for
            the appointment of a receiver, liquidator, trustee, conservator,
            custodian or similar officer is filed by or against Customer or
            any affiliate of Customer, or if Customer or any affiliate of
            Customer makes or proposes to make any arrangement or composition
            for the 


                                      -5-
<PAGE>

            benefit of its creditors, or if Customer (or any such affiliate) or
            any or all of its property is subject to any agreement, order,
            judgment or decree providing for Customer's dissolution, winding-up,
            liquidation, merger, consolidation, reorganization or for the
            appointment of a receiver, liquidator, trustee, conservator,
            custodian or similar officer of Customer, such affiliate or such
            property;

      (e)   DWR is informed of Customer's death or mental incapacity; or

      (f)   if an attachment or similar order is levied against the Account or
            any other account maintained by Customer or any affiliate of
            Customer with DWR;

      DWR shall have the right to (i) satisfy any obligations due DWR out of any
      Customer's property in DWR's custody or control, (ii) liquidate any or all
      of Customer's commodity interest positions, (iii) cancel any or all of
      Customer's outstanding orders, (iv) treat any or all of Customer's
      obligations due DWR as immediately due and payable, (v) sell any or all of
      Customer's property in DWR's custody or control in such manner as DWR
      determines to be commercially reasonable, and/or (vi) terminate any or all
      of DWR's obligations for future performance to Customer, all without any
      notice to or demand on Customer. Any sale hereunder may be made in any
      commercially reasonable manner. Customer agrees that a prior demand, call
      or notice shall not be considered a waiver of DWR's right to act without
      demand or notice as herein provided, that Customer shall at all times be
      liable for the payment of any debit balance owing in each account upon
      demand whether occurring upon a liquidation as provided under this Section
      15 or otherwise under this Agreement, and that in all cases Customer shall
      be liable for any deficiency remaining in each Account in the event of
      liquidation thereof in whole or in part together with interest thereon and
      all costs relating to liquidation and collection (including reasonable
      attorneys' fees).

16.   CUSTOMER REPRESENTATIONS, WARRANTIES AND AGREEMENTS - Customer represents
      and warrants to and agrees with DWR that:

      (a)   Customer has full power and authority to enter into this
            Agreement and to engage in the transactions and perform its
            obligations hereunder and contemplated hereby and (i) if a
            corporation or a limited liability company, is duly organized
            under the laws of the jurisdiction set forth in the accompanying
            Futures Account Application, or (ii) if a partnership, is duly
            organized pursuant to a written partnership agreement and the
            general partner executing this Agreement is duly authorized to do
            so under the partnership agreement;

      (b)   Neither Customer nor any partner, director, officer, member, manager
            or employee of Customer nor any affiliate of Customer is a partner,
            director, officer, member, manager or employee of a futures
            commission merchant introducing broker, exchange or self-regulatory
            organization or an employee or


                                      -6-
<PAGE>

            commissioner of the Commodity Futures Trading Commission (the
            "CFTC"), except as previously disclosed in writing to DWR;

      (c)   The accompanying Futures Account Application and Personal
            Financial Statements, if applicable, (including any financial
            statements furnished in connection therewith) are true, correct
            and complete.  Except as disclosed on the accompanying Futures
            Account Application or otherwise provided in writing,
            (i) Customer is not a commodity pool or is exempt from
            registration under the rules of the Commission, and (ii) Customer
            is acting solely as principal and no one other than Customer has
            any interest in any Account of Customer.  Customer hereby
            authorizes DWR to contact such banks, financial institutions and
            credit agencies as DWR shall deem appropriate for verification of
            the information contained herein.

      (d)   Customer has determined that trading in commodity interests is
            appropriate for Customer, is prudent in all respects and does not
            and will not violate Customer's charter or by-laws (or other
            comparable governing document) or any law, rule, regulation,
            judgment, decree, order or agreement to which Customer or its
            property is subject or bound;

      (e)   As required by CFTC regulations, Customer shall create, retain and
            produce upon request of the applicable contract market, the CFTC or
            the United States Department of Justice documents (such as
            contracts, confirmations, telex printouts, invoices and documents of
            title) with respect to cash transactions underlying exchanges of
            futures for cash commodities or exchange of futures in connection
            with cash commodity transactions;

      (f)   Customer consents to the electronic recording, at DWR's discretion,
            of any or all telephone conversations with DWR (without automatic
            tone warning device), the use of same as evidence by either party in
            any action or proceeding arising out of the Agreement and in DWR's
            erasure, at its discretion, of any recording as part of its regular
            procedure for handling of recordings;

      (g)   Absent a separate written agreement between Customer and DWR with
            respect to give-ups, DWR, in its discretion, may, but shall have no
            obligation to, accept from other brokers commodity interest
            transactions executed by such brokers on an exchange for Customer
            and proposed to be "given-up" to DWR for clearance and/or carrying
            in the Account;

      (h)   DWR, for and on behalf of Customer, is authorized and empowered
            to place orders for commodity interest transactions through one
            or more electronic or automated trading systems maintained or
            operated by or under the auspices of an exchange, that DWR shall
            not be liable or obligated to Customer for any loss, damage,
            liability, cost or expense (including but not limited to loss of
            profits, loss of use, incidental or consequential damages)
            incurred or sustained by Customer and arising in whole or in
            part, directly or indirectly, from any 


                                      -7-
<PAGE>

            fault, delay, omission, inaccuracy or termination of a system or
            DWR's inability to enter, cancel or modify an order on behalf of
            Customer on or through a system. The provisions of this Section
            16(h) shall apply regardless of whether any customer claim arises in
            contract, negligence, tort, strict liability, breach of fiduciary
            obligations or otherwise; and

      (i)   If Customer is subject to the Financial Institution Reform, Recovery
            and Enforcement Act of 1989, the certified resolutions set forth
            following this Agreement have been caused to be reflected in the
            minutes of Customer's Board of Directors (or other comparable
            governing body) and this Agreement is and shall be, continuously
            from the date hereof, an official record of Customer.

      Customer agrees to promptly notify DWR in writing if any of the warranties
      and representations contained in this Section 16 becomes inaccurate or in
      any way ceases to be true, complete and correct.

17.   SUCCESSORS AND ASSIGNS - This Agreement shall inure to the benefit of DWR,
      its successors and assigns, and shall be binding upon Customer and
      Customer's executors, trustees, administrators, successors and assigns,
      provided, however, that this Agreement is not assignable by Customer
      without the prior written consent of DWR.

18.   MODIFICATION OF AGREEMENT BY DWR; NON-WAIVER PROVISION - This Agreement
      may only be altered, modified or amended by mutual written consent of
      the parties, except that if DWR notifies Customer of a change in this
      Agreement and Customer thereafter effects a commodity interest
      transaction in an account, Customer agrees that such action by Customer
      will constitute consent by Customer to such change.  No employee of DWR
      other than DWR's General Counsel or his or her designee, has any
      authority to alter, modify, amend or waive in any respect any of the
      terms of this Agreement.  The rights and remedies conferred upon DWR
      shall be cumulative, and its forbearance to take any remedial action
      available to it under this Agreement shall not waive its right at any
      time or from time to time thereafter to take such action.

19.   SEVERABILITY - If any term or provision hereof or the application
      thereof to any persons or circumstances shall to any extent be contrary
      to any exchange, government or self-regulatory regulation or contrary
      to any federal, state or local law or otherwise be invalid or
      unenforceable, the remainder of this Agreement or the application of
      such term or provision to persons or circumstances other than those as
      to which it is contrary, invalid or unenforceable, shall not be
      affected thereby.

20.   CAPTIONS - All captions used herein are for convenience only, are not a
      part of this Agreement, and are not to be used in construing or
      interpreting any aspect of this Agreement.


                                      -8-
<PAGE>

21.   TERMINATION - This Agreement shall continue in force until written notice
      of termination is given by Customer or DWR. Termination shall not relieve
      either party of any liability or obligation incurred prior to such notice.
      Upon giving or receiving notice of termination, Customer will promptly
      take all action necessary to transfer all open positions in each account
      to another futures commission merchant.

22.   ENTIRE AGREEMENT - This Agreement constitutes the entire agreement between
      Customer and DWR with respect to the subject matter hereof and supersedes
      any prior agreements between the parties with respect to such subject
      matter.

23.   GOVERNING LAW; CONSENT TO JURISDICTION -

      (a)   In case of a dispute between Customer and DWR arising out of or
            relating to the making or performance of this Agreement or any
            transaction pursuant to this Agreement (i) this Agreement and its
            enforcement shall be governed by the laws of the State of New
            York without regard to principles of conflicts of laws, and
            (ii) Customer will bring any legal proceeding against DWR in, and
            Customer hereby consents in any legal proceeding by DWR to the
            jurisdiction of, any state or federal court located within the
            State and City of New York in connection with all legal
            proceedings arising directly, indirectly or otherwise in
            connection with, out of, related to or from Customer's Account,
            transactions contemplated by this Agreement or the breach
            thereof.  Customer hereby waives all objections Customer, at any
            time, may have as to the propriety of the court in which any such
            legal proceedings may be commenced.  Customer also agrees that
            any service of process mailed to Customer at any address
            specified to DWR shall be deemed a proper service of process on
            the undersigned.

      (b)   Notwithstanding the provisions of Section 23 (a)(ii), Customer
            may elect at this time to have all disputes described in this
            Section resolved by arbitration.  To make such election, Customer
            must sign the Arbitration Agreement set forth in Section 24.
            Notwithstanding such election, any question relating to whether
            Customer or DWR has commenced an arbitration proceeding in a
            timely manner, whether a dispute is within the scope of the
            Arbitration Agreement or whether a party (other than Customer or
            DWR) has consented to arbitration and all proceedings to compel
            arbitration shall be determined by a court as specified in
            Section 23 (a)(ii).

24.   ARBITRATION AGREEMENT (OPTIONAL) - Every dispute between Customer and
      DWR arising out of or relating to the making or performance of this
      Agreement or any transaction pursuant to this Agreement, shall be
      settled by arbitration in accordance with the rules, then in effect, of
      the National Futures Association, the contract market upon which the
      transaction giving rise to the claim was executed, or the National
      Association of Securities Dealers as Customer may elect.  If Customer
      does not make such election by registered mail addressed to DWR at 130
      Liberty Street, 29th Floor, New York, NY 10006; Attention:  Deputy
      General Counsel, within 45 days after 


                                      -9-
<PAGE>

      demand by DWR that the Customer make such election, then DWR may make such
      election. DWR agrees to pay any incremental fees which may be assessed by
      a qualified forum for making available a "mixed panel" of arbitrators,
      unless the arbitrators determine that Customer has acted in bad faith in
      initiating or conducting the proceedings. Judgment upon any award rendered
      by the arbitrators may be entered in any court having jurisdiction
      thereof.

      IN ADDITION TO FOREIGN FORUMS, THREE FORUMS EXIST FOR THE RESOLUTION OF
      COMMODITY DISPUTES: CIVIL COURT LITIGATION, REPARATIONS AT THE COMMODITY
      FUTURES TRADING COMMISSION ("CFTC") AND ARBITRATION CONDUCTED BY A
      SELF-REGULATORY OR OTHER PRIVATE ORGANIZATION.

      THE CFTC RECOGNIZES THAT THE OPPORTUNITY TO SETTLE DISPUTES BY ARBITRATION
      MAY IN SOME CASES PROVIDE MANY BENEFITS TO CUSTOMERS, INCLUDING THE
      ABILITY TO OBTAIN AN EXPEDITIOUS AND FINAL RESOLUTION OF DISPUTES WITHOUT
      INCURRING SUBSTANTIAL COSTS. THE CFTC REQUIRES, HOWEVER, THAT EACH
      CUSTOMER INDIVIDUALLY EXAMINE THE RELATIVE MERITS OF ARBITRATION AND THAT
      YOUR CONSENT TO THIS ARBITRATION AGREEMENT BE VOLUNTARY.

      BY SIGNING THIS AGREEMENT, YOU (1) MAY BE WAIVING YOUR RIGHT TO SUE IN A
      COURT OF LAW AND (2) ARE AGREEING TO BE BOUND BY ARBITRATION OF ANY CLAIMS
      OR COUNTERCLAIMS WHICH YOU OR DWR MAY SUBMIT TO ARBITRATION UNDER THIS
      AGREEMENT. YOU ARE NOT, HOWEVER, WAIVING YOUR RIGHT TO ELECT INSTEAD TO
      PETITION THE CFTC TO INSTITUTE REPARATIONS PROCEEDINGS UNDER SECTION 14 OF
      THE COMMODITY EXCHANGE ACT WITH RESPECT TO ANY DISPUTE WHICH MAY BE
      ARBITRATED PURSUANT TO THIS AGREEMENT. IN THE EVENT A DISPUTE ARISES, YOU
      WILL BE NOTIFIED IF DWR INTENDS TO SUBMIT THE DISPUTE TO ARBITRATION. IF
      YOU BELIEVE A VIOLATION OF THE COMMODITY EXCHANGE ACT IS INVOLVED AND IF
      YOU PREFER TO REQUEST A SECTION 14 "REPARATIONS" PROCEEDINGS BEFORE THE
      CFTC, YOU WILL HAVE 45 DAYS FROM THE DATE OF SUCH NOTICE IN WHICH TO MAKE
      THAT ELECTION.

      YOU NEED NOT AGREE TO THIS ARBITRATION AGREEMENT TO OPEN AN ACCOUNT
      WITH DWR.  See 17 CFR 180.1-180.5.  ACCEPTANCE OF THIS ARBITRATION
      AGREEMENT REQUIRES A SEPARATE SIGNATURE ON PAGE 8.

25.   CONSENT TO TAKE THE OTHER SIDE OF ORDERS (OPTIONAL) - Without its prior
      notice, Customer agrees that when DWR executes sell or buy orders on


                                      -10-
<PAGE>

      Customer's behalf, DWR, its directors, officers, employees, agents,
      affiliates, and any floor broker may take the other side of Customer's
      transaction through any account of such person subject to its being
      executed at prevailing prices in accordance with and subject to the
      limitations and conditions, if any, contained in applicable rules and
      regulations.

26.   AUTHORIZATION TO TRANSFER FUNDS (OPTIONAL) - Without limiting other
      provisions herein, DWR is authorized to transfer from any segregated
      account subject to the Commodity Exchange Act carried by DWR for the
      Customer to any other account carried by DWR for the Customer such
      amount of excess funds as in DWR's judgment may be necessary at any
      time to avoid a margin call or to reduce a debit balance in said
      account.  It is understood that DWR will confirm in writing each such
      transfer of funds made pursuant to this authorization within a
      reasonable time after such transfer.

27.   SUBORDINATION AGREEMENT (Applies only to Accounts with funds held in
      foreign countries) - Funds of customers trading on United States
      contract markets may be held in accounts denominated in a foreign
      currency with depositories located outside the United States or its
      territories if the customer is domiciled in a foreign country or if the
      funds are held in connection with contracts priced and settled in a
      foreign currency.  Such accounts are subject to the risk that events
      could occur which hinder or prevent the availability of these funds for
      distribution to customers.  Such accounts also may be subject to
      foreign currency exchange rate risks.

      If authorized below, Customer authorizes the deposit of funds into such
      foreign depositories. For customers domiciled in the United States, this
      authorization permits the holding of funds in regulated accounts offshore
      only if such funds are used to margin, guarantee, or secure positions in
      such contracts or accrue as a result of such positions. In order to avoid
      the possible dilution of other customer funds, a customer who has funds
      held outside the United States agrees by accepting this subordination
      agreement that his claims based on such funds will be subordinated as
      described below in the unlikely event both of the following conditions are
      met: (1) DWR is placed in receivership or bankruptcy, and (2) there are
      insufficient funds available for distribution denominated in the foreign
      currency as to which the customer has a claim to satisfy all claims
      against those funds.

      By initialing the Subordination Agreement below, Customer agrees that if
      both of the conditions listed above occur, its claim against DWR's assets
      attributable to funds held overseas in a particular foreign currency may
      be satisfied out of segregated customer funds held in accounts denominated
      in dollars or other foreign currencies only after each customer whose
      funds are held in dollars or in such other foreign currencies receives its
      pro-rata portion of such funds. It is further agreed that in no event may
      a customer whose funds are held overseas receive more than its pro-rata
      share of the aggregate pool consisting of funds held in dollars, funds
      held in the particular foreign currency, and non-segregated assets of DWR.


                                      -11-
<PAGE>

OPTIONAL ELECTIONS

The following provisions, which are set forth in this agreement, need not be
entered into to open the Account. Customer agrees that its optional elections
are as follows:

                                            Signature required for each election
ARBITRATION AGREEMENT:
(Agreement Paragraph 24)
                                           _____________________________________

CONSENT TO TAKE THE OTHER SIDE OF ORDERS:
(Agreement Paragraph 25)
                                           _____________________________________

AUTHORIZATION TO TRANSFER FUNDS:
(Agreement Paragraph 26)
                                           _____________________________________

ACKNOWLEDGEMENT TO SUBORDINATION AGREEMENT
(Agreement Paragraph 27)
                                           _____________________________________
                                              (Required for accounts holding
                                                     non-U.S. currency)

================================================================================

HEDGE ELECTION

      Customer confirms that all transactions in the Account will            |_|
      represent bona fide hedging transactions, as defined by the
      Commodity Futures Trading Commission, unless DWR is notified
      otherwise not later than the time an order is placed for the
      Account [check box if applicable]:

Pursuant to CFTC Regulation 190.06(d), Customer specifies and agrees, with
respect to hedging transactions in the Account, that in the unlikely event of
DWR's bankruptcy, it prefers that the bankruptcy trustee [check appropriate
box]:

      A.    Liquidate all open contracts without first seeking               |_|
            instructions either from or on behalf of Customer.

      B.    Attempt to obtain instructions with respect to the               |_|
            disposition of all open contracts. (If neither box is
            checked, Customer shall be deemed to elect A)

======================================================================

ACKNOWLEDGEMENT OF RECEIPT OF RISK DISCLOSURE STATEMENTS

The undersigned each hereby acknowledges its separate receipt from DWR, and its
understanding of each of the following documents prior to the opening of the
account:

o  Risk Disclosure Statement for Futures         
   and Options (in the form prescribed by        
   CFTC Regulation 1.55(c))

o  LME Risk Warning Notice                       

o  Dean Witter Order Presumption for After       
   Hours Electronic Markets                      

o  NYMEX ACCESS(SM) Risk Disclosure Statement    

o  Globex(R) Customer Information and Risk
   Disclosure Statement

o  Project A(TM) Customer Information     
   Statement                              

o  Questions & Answers on Flexible Options
   Trading at the CBOT                    
                                          
o  CME Average Pricing System Disclosure  
   Statement                              
                                          
o  Special Notice to Foreign Brokers and  
   Foreign Traders                        

================================================================================

REQUIRED SIGNATURES

The undersigned has received, read, understands and agrees to all the provisions
of this Agreement and the separate risk disclosure statements enumerated above
and agrees to promptly notify DWR in writing if any of the warranties and
representations contained herein become inaccurate or in any way cease to be
true, complete and correct.

________________________________________________________________________________
CUSTOMER NAME(S)

______________________________________________   _______________________________
AUTHORIZED SIGNATURE(S)                           DATE

________________________________________________________________________________
(If applicable, print name and title of signatory)


<PAGE>
                                                                  Exhibit 10.02

                              AMENDED AND RESTATED
                              MANAGEMENT AGREEMENT

            THIS AMENDED AND RESTATED MANAGEMENT AGREEMENT, made as of
_________, 1997, (this "Agreement") among DEAN WITTER PORTFOLIO STRATEGY FUND
L.P. (formerly, Dean Witter Principal Secured Futures Fund L.P.), a Delaware
limited partnership (the "Partnership"), DEMETER MANAGEMENT CORPORATION, a
Delaware corporation (the "General Partner"), and JOHN W. HENRY & COMPANY, INC.,
a California corporation (the "Trading Advisor").

                              W I T N E S S E T H:

            WHEREAS, the Partnership was formed pursuant to a certificate of
limited partnership dated August 28, 1990 and amended its name pursuant to an
amendment to its certificate of limited partnership on July 24, 1996 (as
amended, the "Certificate of Limited Partnership") and a limited partnership
agreement dated as of August 28, 1990 (as it may be amended from time to time,
the "Limited Partnership Agreement");

            WHEREAS, the Partnership has issued units of limited partnership
interest in connection with a public offering pursuant to a Prospectus dated
October 30, 1990 (the "Original Prospectus");

            WHEREAS, the Partnership, the General Partner, and the Trading
Advisor entered into a management agreement dated as of October 30, 1990 (the
"Original Management Agreement") whereby the Trading Advisor agreed to provide
certain services to the Partnership in connection with the Partnership's
speculative trading in commodities (including, but not limited to, foreign
currencies, mortgage-backed securities, money market instruments, financial
instruments, and any other securities or items which are now, or may hereafter
be, the subject of futures contract trading), domestic and foreign commodity
futures contracts, commodity forward contracts, foreign exchange commitments,
options on physical commodities and on futures contracts, spot (cash)
commodities and currencies, and any rights pertaining thereto (collectively,
"futures interests") and securities (such as United States Treasury securities)
approved by the Commodity Futures Trading Commission (the "CFTC") for investment
of customer funds and to engage in all other activities incident thereto;

            WHEREAS, the Partnership and the General Partner each desire the
Trading Advisor to continue to act as trading advisor for the Partnership and to
continue to make investment decisions with respect to futures interests for the
Partnership and the Trading Advisor desires to so act;

            WHEREAS, the Partnership plans to offer additional Units of Limited
Partnership Interest ("Units") for sale to the public as described in a
registration statement on Form S-1, to be filed with the Securities and Exchange
Commission (the "SEC") and as it may 
<PAGE>

be amended from time to time (the "Registration Statement") pursuant to the
Securities Act of 1933, as amended (the "Act") and a final prospectus (the
"Prospectus") of the Partnership as filed with the SEC; and

            WHEREAS, the Partnership, the General Partner, and the Trading
Advisor wish to amend and restate the Original Management Agreement as set forth
in this Amended and Restated Management Agreement, which, among other things,
sets forth certain terms and conditions upon which the Trading Advisor will
continue to conduct the Partnership's futures interest trading.

            NOW, THEREFORE, in consideration of the premises and the mutual
covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

            1.    Undertakings of the Trading Advisor Relating to the Offering
                  of Units.

            The Trading Advisor shall cooperate with the Partnership and the
General Partner in connection with: (a) (i) their preparation of the
Registration Statement and any preliminary prospectus contained therein, and
(ii) their preparation of the Prospectus, in each case, as deemed necessary or
desirable by the General Partner under the Act; (b) their filings of the
Registration Statement and Prospectus with the SEC, the National Association of
Securities Dealers (the "NASD"), the CFTC and the National Futures Association
(the "NFA"); (c) their filing of the Registration Statement, Prospectus, or
supplementary information relating thereto with appropriate governmental
authorities as part of making applications for registration of the Units under
the securities or Blue Sky laws of such jurisdictions as the General Partner may
deem appropriate and the taking of such other actions, consistent with the
Trading Advisor's current registrations and not inconsistent with this
Agreement, as the General Partner may determine to be necessary or advisable in
order to make the proposed offer and sale of Units lawful in such jurisdictions.
The Trading Advisor shall make all disclosures regarding itself and its
principals, its trading performance and trading approaches (provided, however,
that nothing contained in this Agreement shall require the Trading Advisor to
disclose proprietary information concerning its trading systems, strategies,
methods and programs), its customer accounts, and such other matters as may be
required or advisable under the Act and the Commodity Exchange Act of 1974, as
amended and the rules and regulations thereunder, (the "CEAct"), in the
reasonable judgment of the General Partner, to be made in the Registration
Statement or Prospectus or any amendment or supplement thereof. The Partnership
and the General Partner agree to keep confidential and not disseminate such
details or any other information regarding the trading systems, strategies,
methods and programs for specific trades made by the Trading Advisor to any of
the limited partners of the Partnership or the customers, employees, agents,
shareholders, officers, directors or affiliates of the General Partner of Dean
Witter Reynolds, Inc. ("DWR") or any other person or entity, except such details
as may be, in the reasonable judgment of the 


                                      -2-
<PAGE>

General Partner, necessary or appropriate for the conduct of the business of the
Partnership or as the latter relates to the Partnership or as required by law.

            2.    Undertakings of the General Partner Relating to the Offering
                  of Units.

            The General Partner shall use its best efforts to consummate the
public offering of the Units (the "Offering") as contemplated by the
Registration Statement. Notwithstanding the foregoing, the General Partner may:
(a) withdraw the Registration Statement from either or both of the SEC and CFTC
(and, if required, so notify the NASD and NFA); (b) withdraw the applications
filed under the securities or Blue Sky laws of the various jurisdictions from
any or all of such jurisdictions; and (c) terminate the offering or the
registration of Units with the SEC at any time. The foregoing actions shall have
no effect on the Trading Advisor's obligation to continue providing services to
the Partnership pursuant to the terms hereof. The General Partner shall incur no
liability as a result of any actions taken pursuant to this Section 2; provided,
however, that the General Partner shall not be relieved hereby of any liability
that it may incur under other sections of this Agreement.

            3.    Duties of the Trading Advisor.

            (a) The Trading Advisor hereby agrees to continue to act as a
trading advisor for the Partnership and, as such, shall have sole authority and
responsibility for directing the investment and reinvestment of the net assets
(as defined in Section 7(d) of the Limited Partnership Agreement, the "Net
Assets") of the Partnership allocated to it; provided, however, that the General
Partner may override the instructions of the Trading Advisor to the extent
necessary (i) to comply with the trading policies of the Partnership described
in writing to the Trading Advisor and with applicable speculative position
limits, (ii) to fund any distributions, redemptions, or reapportionments among
other trading advisors to the Partnership, (iii) to pay the Partnership's
expenses, (iv) to the extent the General Partner believes doing so is necessary
for the protection of the Partnership, (v) to terminate the futures interests
trading of the Partnership, or (vi) to comply with any applicable law,
regulation, order, judgment, or interpretation, or policy. The General Partner
agrees not to override any such instructions for the reasons specified in
clauses (ii) or (iii) of the preceding sentence unless the Trading Advisor fails
to comply with a request of the General Partner to make the necessary amount of
funds available to the Partnership within five days of such request. The Trading
Advisor shall not be liable for the consequences of any decision by the General
Partner to override instructions of the Trading Advisor, except to the extent
that the Trading Advisor is in breach of this Agreement. In performing services
for the Partnership, the Trading Advisor may not materially alter the trading
programs used by the Trading Advisor in investing and reinvesting the
Partnership's Net Assets in futures interests as described in the Prospectus
without the prior written consent of the General Partner, it being understood
that changes in the futures interests traded on leverage shall not be deemed a
material alteration in the Trading Advisor's trading program(s) employed for the
Partnership.


                                      -3-
<PAGE>

            (b) The Trading Advisor shall:

                  (i) Exercise good faith and due care in trading futures
interests for the account of the Partnership in accordance with (a) prohibitions
and trading policies of the Partnership as described in the Prospectus and
otherwise as provided in writing to the Trading Advisor by the General Partner
and (b) the trading systems, programs, and strategies of the Trading Advisor as
described in the Prospectus or such other trading systems, programs, and
strategies of the Trading Advisor as the General Partner and the Trading Advisor
shall agree, with such changes and additions to such trading systems, programs
or strategies as the Trading Advisor, from time to time, incorporates into its
trading approach for accounts the size of the Partnership.

                 (ii) Subject to reasonable assurances of confidentiality by the
General Partner and the Partnership, provide the General Partner, within 30 days
of a request therefor by the General Partner, with information comparing the
performance of the Partnership's account and the performance of all other client
accounts directed by the Trading Advisor using the trading programs used by the
Trading Advisor for the Partnership over a specified period of time. In
providing such information, the Trading Advisor may take such steps as are
necessary to assure the confidentiality of the Trading Advisor's clients'
identities. The Trading Advisor shall, upon the General Partner's request,
consult with the General Partner concerning any discrepancies between the
performance of such other accounts and the Partnership's accounts. The Trading
Advisor shall promptly inform the General Partner of any material discrepancies
of which the Trading Advisor is aware. The General Partner acknowledges that
different trading strategies or methods may be utilized for different sized
accounts, accounts with different trading policies, accounts experiencing
differing inflows or outflows of equity, timing of orders, accounts which
commence trading at different times, accounts which have different portfolios or
different fiscal years, accounts with different expense and interest
arrangements, that the Trading Advisor offers several different trading programs
and that such differences may cause divergent trading results.

                (iii) Upon request of the General Partner and subject to
reasonable assurances of confidentiality by the General Partner and the
Partnership, provide the General Partner with all material information
concerning the Trading Advisor other than proprietary information (including,
without limitation, information relating to changes in control, principals,
trading approach or any materially adverse change in the Trading Advisor's
financial condition). The General Partner acknowledges that all trading
instructions made by the Trading Advisor will be held in confidence by the
General Partner, except to the extent necessary to conduct the business of the
Partnership or as required by law, regulation, order, judgment or interpretive
policy.

                 (iv) While the Trading Advisor is the sole advisor of the
Partnership, monitor the speculative position limits applicable to the
Partnership's trading so as to prevent the Partnership from exceeding such
limits.


                                      -4-
<PAGE>

                  (v) Inform the General Partner when the Trading Advisor's open
positions maintained by the Trading Advisor exceed the Trading Advisor's
applicable speculative position limits.

            (c) All purchases and sales of futures interests pursuant to this
Agreement shall be for the account, and at the risk, of the Partnership and not
for the account, or at the risk, of the Trading Advisor or any of its
stockholders, directors, officers, or employees, or any other person, if any,
who controls the Trading Advisor within the meaning of the Act. All brokerage
fees arising from trading by the Trading Advisor shall be for the account of the
Partnership. The Trading Advisor makes no representations as to whether its
trading will produce profits or avoid losses.

            (d) Notwithstanding anything in this Agreement to the contrary, the
Trading Advisor shall assume financial responsibility for any errors committed
or caused by it in transmitting orders for the purchase or sale of futures
interests for the Partnership's account, including, without limitation, payment
to DWR, the commodity broker for the Partnership, of the floor brokerage
commissions, exchange and NFA fees, and other transaction charges and give-up
charges incurred by DWR on such trades but only for the amount of DWR's
out-of-pocket costs in respect thereof. The Trading Advisor's errors shall
include, but not be limited to, inputting improper trading signals or
communicating incorrect orders to DWR. However, the Trading Advisor shall not be
responsible for errors committed or caused by DWR or by floor brokers or by
other futures commission merchants. The Trading Advisor shall have an
affirmative obligation promptly to notify the General Partner of its own errors,
and the Trading Advisor shall use its best efforts to identify and promptly
notify the General Partner of any order or trade which the Trading Advisor
reasonably believes was not executed in accordance with its instructions to DWR
or such other commodity broker utilized to execute orders for the Partnership.

            4.    Designation of Additional Trading Advisors and Reallocation of
                  Net Assets.

            (a) If the General Partner at any time deems it to be in the best
interests of the Partnership, the General Partner may, upon prior written notice
to the Trading Advisor, designate an additional trading advisor or advisors for
the Partnership and may apportion to such additional trading advisor(s) the
management of such amounts of Net Assets as the General Partner shall determine
in its absolute discretion. The designation of an additional trading advisor and
the apportionment of Net Assets to such trading advisor pursuant to this Section
4 shall neither terminate this Agreement nor modify in any regard the respective
rights and obligations of the Partnership, the General Partner and the Trading
Advisor hereunder with respect to the assets that remain under the management of
the Trading Advisor. In the event that Net Assets are reallocated from the
Trading Advisor, the Trading Advisor shall thereafter receive management and
incentive fees based, respectively, on that portion of the Net Assets managed by
the Trading Advisor and the Trading Profits attributable to the trading by the
Trading Advisor.


                                      -5-
<PAGE>

            (b) The General Partner may at any time and from time to time upon
two business days' prior notice reallocate Net Assets allocated to the Trading
Advisor to any other trading advisor or advisors of the Partnership or allocate
additional Net Assets upon two business days' prior notice to the Trading
Advisor from such other trading advisor or advisors; provided that any such
addition to or withdrawal from Net Assets allocated to the Trading Advisor will
only take place on the last day of a month unless the General Partner determines
that the best interests of the Partnership require otherwise.

            (c) The General Partner shall not, without the consent of the
Trading Advisor, allocate to the Trading Advisor "notional" assets of the
Partnership.

            5.    Trading Advisor Independent.

            For all purposes of this Agreement, the Trading Advisor shall be
deemed to be an independent contractor and shall, unless otherwise expressly
provided herein or authorized, have no authority to act for or represent the
Partnership in any way or otherwise be deemed an agent of the Partnership.
Nothing contained herein shall be deemed to require the Partnership to take any
action contrary to the Limited Partnership Agreement, the Certificate of Limited
Partnership of the Partnership as from time to time in effect (the "Certificate
of Limited Partnership"), or any applicable law or rule or regulation of any
regulatory body, exchange, or board. Nothing herein contained shall constitute
the Trading Advisor and the Partnership or the General Partner as members of any
partnership, joint venture, association, syndicate or other entity, or, except
as specifically provided otherwise in this Agreement, be deemed to confer on any
of them any express, implied, or apparent authority to incur any obligation or
liability on behalf of any other. It is expressly agreed that the Trading
Advisor is neither a promoter, sponsor or issuer with respect to the
Partnership, nor does the Trading Advisor have any authority or responsibility
with respect to the sale or issuance of Units.

            6.    Commodity Broker.

            The Trading Advisor shall effect all transactions in commodity
interests for the Partnership through, and shall maintain a separate account
with, such commodity broker or brokers as the General Partner shall direct. At
the present time, DWR shall act as commodity broker for the Partnership. The
General Partner will instruct DWR to provide the Trading Advisor with copies of
brokerage statements. Notwithstanding that DWR shall act as commodity broker for
the Partnership, the Trading Advisor may execute trades through floor brokers
other than those employed by DWR so long as arrangements are made for such floor
brokers to "give-up" or transfer the positions to DWR and provided that the
rates to be charged by such floor brokers have been approved in advance by DWR.


                                      -6-
<PAGE>

            7.    Fees.

            (a) Management Fee. The Partnership shall pay to the Trading Advisor
a management fee equal to 1/3 of 1% per month (a 4% annual rate) of the
Partnership's Net Assets (as defined in the Limited Partnership Agreement)
allocated to the Trading Advisor as of the last day of each month (before
deduction of the management fee, any accrued incentive fee and any redemptions,
distributions or reallocations as of the end of such month).

            If during any month after the Partnership commences trading
operations (including the month in which the Partnership commences such
operations), the Partnership does not conduct the business operations or
suspends trading, or, as a result of an act or material failure to act by the
Trading Advisor, the Trading Advisor does not provide its services on any
trading day then the management fee described above payable to the Trading
Advisor will be prorated based on the ratio of the number of trading days in the
month in which the Partnership engaged in trading operations or, as appropriate,
in which the Trading Advisor provided its services to the total number of
trading days in such month. If this Agreement is terminated on a date other than
the end of a calendar month, the management fee described above shall be
determined as if such date were the end of a calendar month, but such fee shall
be prorated based on the ratio of the number of trading days in the month
through the date of termination to the total number of trading days in the
month.

            (b) Quarterly Incentive Fee. The Partnership shall pay a quarterly
incentive fee with respect to the Net Assets of the Partnership allocated to the
Trading Advisor equal to 15% of the "Trading Profits" (as defined below) as of
the end of each calendar quarter; provided, however, that if the Closing (as
defined in the Prospectus) is as of the first business day after a month-end
that is not the end of a calendar quarter, and if at such Closing an incentive
fee has accrued on Trading Profits, the accrued incentive fee shall become due
and be paid to the Trading Advisor on such closing date even if it does not
coincide with the end of a calendar quarter.

            If this Agreement is terminated on a date other than the end of a
calendar quarter, the incentive fee described above shall be determined as if
such date were the end of a calendar quarter. Any accrued incentive fees with
respect to Units redeemed at the end of a month which is not the end of a
calendar quarter will be deducted and paid to the Trading Advisor at the time of
redemption, and "Trading Profits" with respect to such Units will not be
included for purposes of determining incentive fees thereafter. The quarterly
incentive fee will be charged against the Net Assets allocated to each of the
Trading Advisor's trading programs based upon the portion of the "Trading
Profits" for the quarter generated by each trading program.

            As used herein, the term "Trading Profits" shall mean net futures
interests trading profits (realized and unrealized) earned on the Net Assets
allocated to the Trading Advisor, including interest income credited to the
Partnership by DWR on its assets held in its futures interest account with DWR,
decreased by monthly management fees, brokerage commissions, floor brokerage
fees, "give up" of transfer fees, NFA fees, other transaction


                                      -7-
<PAGE>

fees and costs, administrative expenses, and other fees and expenses (excluding
incentive fees payable) of the Partnership; with such Trading Profits and items
of decrease determined from the last date as of which such incentive fee was
earned by the Trading Advisor or, if no incentive fee has been earned previously
by the Trading Advisor, from the date that the Partnership commenced trading to
the end of the calendar quarter as of which such incentive fee calculation is
being made. Extraordinary expenses of the Partnership, if any, will not be
deducted in determining Trading Profits.

            If any payment of incentive fees is made to the Trading Advisor on
account of Trading Profits earned on the Net Assets allocated to the Trading
Advisor and the Trading Advisor thereafter fails to earn Trading Profits or
experiences losses for any subsequent calendar quarter, the Trading Advisor
shall be entitled to retain such amounts of incentive fees previously paid to
the Trading Advisor in respect of such Trading Profits. However, no subsequent
incentive fees shall be payable to the Trading Advisor until the Trading Advisor
has again earned Trading profits; provided, however, that if Net Assets
allocated to the Trading Advisor are increased or reduced because of
subscriptions, redemptions, distributions, or reallocations which occur at the
end of, or subsequent to, a month in which the Trading Advisor experiences a
futures interest trading loss, the trading loss that must be recovered before
the Net Assets allocated to the Trading Advisor will be deemed to experience
Trading Profits will be equal to (i) the amount of the unrecovered trading loss
multiplied by (ii) a fraction the numerator of which shall be the Net Assets
allocated to the Trading Advisor immediately after such subscriptions
redemptions, distributions or reallocations, and the denominator of which shall
be the Net Assets allocated to the Trading Advisor immediately before such
redemptions, distributions or reallocations.

            (c) The Partnership will remit the management and incentive fees to
the Trading Advisor as soon as practicable, but in no event later than 30 days,
in the case of the management fee, or 45 days in the case of any incentive fee,
of the month-end as of which they are due, together with an itemized statement
showing the calculations.

            8.    Term.

            This Agreement shall continue in effect for a period of two years
after the date of the Closing. At least ninety days prior to the expiration of
such two-year period, the Trading Advisor may terminate this Agreement by
providing written notice to the Partnership indicating that the Trading Advisor
desires to terminate such Agreement at the end of such two-year period. If the
Agreement is not terminated upon the expiration of the three-year period this
Agreement shall automatically renew for an additional one-year period and shall
continue to renew for additional one-year periods until this Agreement is
otherwise terminated, as provided for herein. At least ninety days prior to the
expiration of any such one-year period, the Trading Advisor may terminate this
Agreement at the end of the current one-year period by providing written notice
to the Partnership indicating that the Trading Advisor desires to terminate such
Agreement at the end of such one-year period. This Agreement shall terminate if
the Partnership terminates. The Partnership shall have the right to terminate
this 


                                      -8-
<PAGE>

Agreement at its discretion (a) at any month end upon 5 days' prior written
notice to the Trading Advisor, or (b) at any time specified in written notice to
the Trading Advisor upon the occurrence of any of the following events: (i) if
John W. Henry ceases for any reason to be a principal of the Trading Advisor;
(ii) if the Trading Advisor becomes bankrupt or insolvent; (iii) if the Trading
Advisor is unable to use its trading programs or methods as in effect on the
date hereof and as refined and modified in the future for the benefit of the
Partnership; (iv) if the registration, as a commodity trading advisor, of the
Trading Advisor with the CFTC or its membership in the NFA is revoked,
suspended, terminated, or not renewed, or limited or qualified in any respect;
(v) except as provided in Section 13 hereof, if the Trading Advisor merges or
consolidates with, or sells or otherwise transfers its advisory business, or all
or a substantial portion of its assets, any portion of its futures interests
trading programs or methods, or its good will to, any individual or entity; (vi)
if the amount of the Trading Advisor's allocated Net Assets shall decline from
the amount of the allocated Net Assets immediately following the Closing (after
adjusting for subscriptions, distributions, redemptions, or reallocations, if
any) by 50% or more as a result of trading losses; (vii) if, at any time, the
Trading Advisor violates any trading or administrative policy as described in
the Prospectus or as set forth in writing to the Trading Advisor by the General
Partner, except with the prior express written consent of the General Partner;
or (viii) if the Trading Advisor fails in a material manner to perform any of
its obligations under this Agreement. The Trading Advisor may terminate this
Agreement at any time, upon 30 days prior written notice to the Partnership, in
the event: (i) that the General Partner imposes additional trading limitation(s)
in the form of one or more trading policies or administrative policies which the
Trading Advisor does not agree to follow in its management of its allocable
share of the Partnership's Net Assets; (ii) the General Partner objects to the
Trading Advisor implementing a proposed material change in the Trading Advisor's
trading program(s) or method(s) used by the Partnership and Trading Advisor
certifies to the General Partner in writing that it believes such change is in
the best interests of the Partnership; (iii) the General Partner overrides a
trading instruction of the Trading Advisor for reasons unrelated to a
determination by the General Partner that the Trading Advisor has violated the
Partnership's trading policies and the Trading Advisor certifies to the General
Partner in writing that as a result, the Trading Advisor believes the
performance results of the Trading Advisor relating to Partnership will be
materially adversely affected; (iv) the Partnership materially breaches this
Agreement and does not correct the breach within 10 days of receipt of a written
notice of such breach from the Trading Advisor; (v) the Partnership's Net
Assets, as of the close of business (as determined by the General Partner) on
any day, decline to $5,000,000 or less; or (vi) the Trading Advisor has amended
its trading programs used for the Partnership to include a foreign futures or
option contract which may lawfully be traded by the Partnership under CFTC
regulations and counsel, mutually acceptable to the parties, has not opined that
such inclusion would cause adverse tax consequences to Limited Partners and the
General Partner does not consent to the Trading Advisor's trading such contract
for the Partnership within 5 business days of a written request by the Trading
Advisor to do so, and, if such consent is given, does not make arrangements to
facilitate such trading within 30 days of such notice.


                                      -9-
<PAGE>

            The indemnities set forth in Section 9 hereof shall survive any
termination of this Agreement.

            9.    Standard of Liability; Indemnifications.

            (a) Limitation of Trading Advisor Liability. In respect of the
Trading Advisor's role in the futures interests trading of the Partnership's
assets, none of the Trading Advisor, or its controlling persons, its affiliates,
and their respective directors, officers, shareholders, employees or controlling
persons shall be liable to the Partnership or the General Partner or their
partners, officers, shareholders, directors or controlling persons except that
the Trading Advisor shall be liable for acts or omissions of any such person
provided that such act or omission constitutes a breach of this Agreement or a
representation, warranty or covenant herein, misconduct or negligence or is the
result of any such person not having acted in good faith and in the reasonable
belief that such actions or omissions were in, or not opposed to, the best
interests of the Partnership.

            (b) Trading Advisor Indemnity in Respect of Management Activities.
The Trading Advisor shall indemnify, defend and hold harmless the Partnership
and the General Partner, their controlling persons, their affiliates and their
respective directors, officers, shareholders, employees, and controlling persons
from and against any and all losses, claims, damages, liabilities (joint and
several), costs, and expenses (including any reasonable investigatory, legal,
and other expenses incurred in connection with, and any amounts paid in, any
settlement; provided that the Trading Advisor shall have approved such
settlement) incurred as a result of any action or omission involving the
business or activities undertaken by the Trading Advisor pursuant to this
Agreement (including the Original Management Agreement); provided that such
liability arises from an act or omission of the Trading Advisor, or any of its
controlling persons or affiliates or their respective directors, officers,
partners, shareholders, or employees which is found by a court of competent
jurisdiction upon entry of a final judgment (or, if no final judgment is
entered, by an opinion rendered by counsel who is approved by the Partnership
and the Trading Advisor, such approval not to be unreasonably withheld) to be a
breach of this Agreement (including the Original Management Agreement) or a
representation, warranty or covenant herein or in the Original Management
Agreement, the result of bad faith, misconduct or negligence, or conduct not
done in good faith in the reasonable belief that it was in, or not opposed to,
the best interests of the Partnership. The termination of any demand, claim,
lawsuit, action or proceeding by settlement shall not, in itself, create a
presumption that the conduct in question was not undertaken in good faith in a
manner reasonably believed to be in, or not opposed to, the best interest of the
Partnership.

            (c) Partnership and General Partner Indemnity in Respect of
Management Activities. The Partnership and the General Partner shall, jointly
and severally, indemnify, defend, and hold harmless the Trading Advisor, its
controlling persons, their affiliates and their respective directors, officers,
shareholders, employees, and controlling persons, from and against any and all
losses, claims, damages, liabilities (joint and several), costs, and expenses


                                      -10-
<PAGE>

(including any reasonable investigatory, legal, and other expenses incurred in
connection with, and any amounts paid in, any settlement; provided that the
General Partner and the Partnership shall have approved such settlement)
resulting from a demand, claim, lawsuit, action, or proceeding (other than those
incurred as a result of claims brought by or in the right of an indemnified
party) relating to the business or activities undertaken by the Trading Advisor
pursuant to this Agreement (including the Original Management Agreement) or a
breach of this Agreement (including the Original Management Agreement) by the
General Partner or the Partnership or a breach of a representation, warranty or
covenant herein or in the Original Management Agreement by the General Partner
or Partnership; provided that a court of competent jurisdiction upon entry of a
final judgment finds (or, if no final judgment is entered, an opinion is
rendered to the General Partner and the Partnership by independent counsel
reasonably acceptable to both parties) to the effect that the action or inaction
of such indemnified party that was the subject of the demand, claim, lawsuit,
action, or proceeding did not constitute negligence, misconduct, or a breach of
this Agreement (including the Original Management Agreement) by the Trading
Advisor or any of its controlling persons, their affiliates or their respective
directors, officers, shareholders, employees or controlling persons or a
representation, warranty or covenant of the Trading Advisor herein or in the
Original Management Agreement and was done in good faith and in a manner such
indemnified party reasonably believed to be in, or not opposed to, the best
interests of the Partnership. The termination of any demand, claim, lawsuit,
action or proceeding by settlement shall not, in itself, create a presumption
that the conduct in question was not undertaken in good faith in a manner
reasonably believed to be in, or not opposed to, the best interest of the
Partnership.

            (d) Notwithstanding anything in the above to the contrary, John W.
Henry shall have no liability to the General Partner or the Partnership under
this Agreement (including the Original Management Agreement) or in connection
with the transactions contemplated by this Agreement (including the Original
Management Agreement) except for fraud and willful misconduct by John W. Henry.

            (e) The foregoing agreements of indemnity shall be in addition to,
and shall in no respect limit or restrict, any other remedies which may be
available to an indemnified person.

            (f) Promptly after receipt by an indemnified person of notice of the
commencement of any action, claim, or proceeding to which any of the indemnities
may apply, the indemnified person will notify the indemnifying party in writing
of the commencement thereof if a claim in respect thereof is to be made against
the indemnifying party hereunder; but the omission so to notify the indemnifying
party will not relieve the indemnifying party from any liability which the
indemnifying party may have to the indemnified person hereunder, except where
such omission has materially prejudiced the indemnifying party. In case any
action, claim, or proceeding is brought against an indemnified person and the
indemnified person notifies the indemnifying party of the commencement thereof
as provided above, the indemnifying party will be entitled to participate
therein and, to the extent that the indemnifying party desires, to assume the
defense


                                      -11-
<PAGE>

thereof with counsel selected by the indemnifying party and not unreasonably
disapproved by the indemnified person. After notice from the indemnifying party
to the indemnified person of the indemnifying party's election so to assume the
defense thereof as provided above, the indemnifying party will not be liable to
the indemnified person under the indemnity provisions hereof for any legal and
other expenses subsequently incurred by the indemnified person in connection
with the defense thereof, other than reasonable costs of investigation.

            Notwithstanding the preceding paragraph, if, in any action, claim,
or proceeding as to which indemnification is or may be available hereunder, an
indemnified person reasonably determines that its interests are or may be
adverse, in whole or in part, to the indemnifying party's interests or that
there may be legal defenses available to the indemnified person which are
inconsistent with the defenses available to the indemnifying party, the
indemnified person may retain its own counsel in connection with such action,
claim, or proceeding and will be indemnified by the indemnifying party for any
legal and other expenses reasonably incurred in connection with investigating or
defending such action, claim, or proceeding.

            In no event will the indemnifying party be liable for the fees and
expenses of more than one counsel for all indemnified persons in connection with
any one action, claim, or proceeding or in connection with separate but similar
or related actions, claims, or proceedings in the same jurisdiction arising out
of the same general allegations. The indemnifying party will not be liable for
any settlement of any action, claim, or proceeding effected without the
indemnifying party's express written consent, but if any action, claim, or
proceeding is settled with the indemnifying party's express written consent or
if there is a final judgment for the plaintiff in any such action, claim, or
proceeding, the indemnifying party will indemnify, defend, and hold harmless an
indemnified person as provided in this Section 9.

            (g) The exculpation provisions in the selling agreement among the
Partnership, General Partner, DWR, and Trading Advisor dated as of _______, 1997
(the "Selling Agreement") shall not relieve any party thereto from any liability
it may have or incur to any party under this Agreement. Neither shall any party
to Selling Agreement be entitled to be indemnified by any party thereto,
pursuant to the indemnification provisions contained in the Selling Agreement,
against any loss, liability, damage, cost or expense it may incur under this
Agreement.

            10.   Right to Advise Others and Uniformity of Acts and Practices.

            (a) The Trading Advisor is engaged in the business of advising
investors as to the purchase and sale of futures interests. During the term of
this Agreement, the Trading Advisor, its principals and affiliates, will be
advising other investors (including affiliates and the stockholders, officers,
directors, and employees of the Trading Advisor and its affiliates and their
families) and trading for their own accounts. However, under no circumstances
shall the Trading Advisor by any act or omission favor any account advised or
managed by the 


                                      -12-
<PAGE>

Trading Advisor over the account of the Partnership in any way or manner (other
than by charging different management and/or incentive fees). The Trading
Advisor agrees to treat the Partnership in a fiduciary capacity to the extent
recognized by applicable law, but, subject to that standard, the Trading Advisor
or any of its principals or affiliates shall be free to advise and manage
accounts for other investors and shall be free to trade on the basis of the same
trading programs, methods, or strategies employed by the Trading Advisor for the
account of the Partnership, or trading programs, methods, or strategies which
are entirely independent of, or materially different from, those employed for
the account of the Partnership, and shall be free to compete for the same
futures interests as the Partnership or to take positions opposite to the
Partnership, where such actions do not knowingly or deliberately prefer any of
such accounts over the account of the Partnership.

            (b) The Trading Advisor shall not be restricted as to the number or
nature of its clients, except that: (i) so long as the Trading Advisor acts as a
trading advisor for the Partnership, neither the Trading Advisor nor any of its
principals or affiliates shall hold knowingly any position or control any other
account which would cause the Partnership, the Trading Advisor, or the
principals or affiliates of the Trading Advisor to be in violation of the CEAct,
any applicable rule or regulation of the CFTC or any other regulatory body,
exchange, or board; and (ii) neither the Trading Advisor nor any of its
principals or affiliates shall render trading advice to any other individual or
entity or otherwise engage in activity which shall knowingly cause positions in
futures interests to be attributed to the Trading Advisor under the rules or
regulations of the CFTC or any other regulatory body, exchange, or board so as
to require the significant modification of positions taken or intended for the
account of the Partnership; provided that the Trading Advisor may modify its
trading programs, methods, or strategies to accommodate the trading of
additional funds or accounts. If applicable speculative position limits are
exceeded by the Trading Advisor in the opinion of (i) independent counsel (who
shall be other than counsel to the Partnership), (ii) the CFTC, or (iii) any
other regulatory body, exchange, or board, the Trading Advisor and its
principals and affiliates shall promptly liquidate positions in all of their
accounts, including the Partnership's account, as to which positions are
attributed to the Trading Advisor as nearly as possible in proportion to the
accounts' respective amounts available for trading (taking into account
different degrees of leverage and "notional" equity) to the extent necessary to
comply with the applicable position limits.

            11.   Representations, Warranties, and Covenants of the Trading
                  Advisor.

            (a) Representations and Warranties of the Trading Advisor. The
Trading Advisor with respect to itself and each of its principals represents and
warrants to and agrees with the General Partner and the Partnership as follows:

                (i) The Trading Advisor is duly organized, validly existing and
in good standing as a corporation under the laws of the state of its
incorporation and is qualified to do business as a foreign corporation and in
good standing in each other jurisdiction in which the nature or conduct of its
business requires such qualification and the failure to so qualify


                                      -13-
<PAGE>

would materially adversely affect the Trading Advisor's ability to perform its
duties under this Agreement. The Trading Advisor has full corporate power and
authority to perform its obligations under this Agreement.

                (ii) This Agreement has been duly and validly authorized,
executed and delivered on behalf of the Trading Advisor and is a valid and
binding agreement of the Trading Advisor enforceable in accordance with its
terms.

                (iii) Each of the Trading Advisor and each "principal" of the
Trading Advisor, as defined in Rule 3.1 under the CEAct, has all federal and
state governmental, regulatory and exchange licenses and approvals and has
effected all filings and registrations with federal and state governmental and
regulatory agencies required to conduct its or his business and to act as
described in this Agreement. The Trading Advisor is registered as a commodity
trading advisor under the CEAct and is a member of the NFA in such capacity.

                (iv) The execution and delivery of this Agreement, the
incurrence of the obligations set forth herein, the consummation of the
transactions contemplated herein and in the Prospectus and the payment of the
fees hereunder will not violate, or constitute a breach of, or default under,
the certificate of incorporation or bylaws of the Trading Advisor or any
agreement or instrument by which it is bound or of any order, rule, law or
regulation binding on it of any court or any governmental body or administrative
agency or panel or self-regulatory organization having jurisdiction over it.

            (b) Covenants of the Trading Advisor. The Trading Advisor covenants
and agrees that:

                  (i) It will exercise good faith and due care in using its
trading programs on behalf of the Partnership as described in the Prospectus (as
modified from time to time) or any other trading programs of the Trading Advisor
to which a portion of the Partnership's Net Assets are allocated.

                  (ii) The Trading Advisor shall follow, at all times, the
Trading Policies of the Partnership (as described in the Prospectus) and as
amended in writing and furnished to the Trading Advisor from time to time.

                  (iii) The Trading Advisor shall trade only in futures and
option contracts traded on U.S. contract markets, foreign currency forward
contracts traded with DWR, and such other futures interests which are approved
in writing by the General Partner.

                  (iv) The Trading Advisor shall use its best efforts to
maintain all registrations and memberships necessary for the Trading Advisor to
continue to act as described herein and to at all times comply in all material
respects with all applicable laws, rules, and regulations, to the extent that
the failure to so comply would have a materially adverse effect on the Trading
Advisor's ability to act as described herein.


                                      -14-
<PAGE>

                  (v) The Trading Advisor shall inform the General Partner
immediately as soon as the Trading Advisor or any of its principals becomes the
subject of any investigation, claim or proceeding of any regulatory authority
having jurisdiction over such person or becomes a named party to any litigation
materially affecting the business of the Trading Advisor. The Trading Advisor
shall also inform the General Partner immediately if the Trading Advisor or any
of its officers becomes aware of any breach of this Agreement by the Trading
Advisor.

            12.   Representations, Warranties and Covenants of the General
                  Partner and the Partnership.

            (a) Representations and Warranties. The General Partner and the
Partnership represent and warrant to the Trading Advisor, as follows:

                  (i) The Partnership is a limited partnership duly organized
pursuant to the Certificate of Limited Partnership, the Limited Partnership
Agreement and the Delaware Revised Uniform Limited Partnership Act ("DRULPA")
and is validly existing under the laws of the State of Delaware with full power
and authority to engage in the trading of futures interests and to engage in its
other contemplated activities as described in the Prospectus; the Partnership
has received a certificate of authority to do business in the State of New York
as provided by Article 8-A of the New York Revised Limited Partnership Act and
is qualified to do business in each jurisdiction in which the nature or conduct
of its business requires such qualification and where failure to be so qualified
could materially adversely affect the Partnership's ability to perform its
obligations hereunder.

                  (ii) The General Partner is duly organized and validly
existing and in good standing as a corporation under the laws of the State of
Delaware and in good standing and qualified to do business as a foreign
corporation under the laws of the State of New York and is qualified to do
business and is in good standing as a foreign corporation in each jurisdiction
in which the nature or conduct of its business requires such qualification and
where the failure to be so qualified could materially adversely affect the
General Partner's ability to perform its obligations hereunder.

                  (iii) The Partnership and the General Partner have full
partnership or corporate power and authority under applicable law to conduct
their business and to perform their respective obligations under this Agreement.

                  (iv) This Agreement has been duly and validly authorized,
executed and delivered by the General Partner on behalf of the Partnership and
the General Partner and constitutes a valid, binding and enforceable agreement
of the Partnership and the General Partner in accordance with its terms.

                  (v) The execution and delivery of this Agreement, the
incurrence of the obligations set forth herein and the consummation of the
transactions contemplated herein


                                      -15-
<PAGE>

will not violate, or constitute a breach of, or default under, the General
Partner's certificate of incorporation, bylaws, the Certificate of Limited
Partnership, or the Limited Partnership Agreement or any agreement or instrument
by which either the General Partner or the Partnership, as the case may be, is
bound or any order, rule, law or regulation applicable to the General Partner or
the Partnership of any court or any governmental body or administrative agency
or panel or self-regulatory organization having jurisdiction over the General
Partner or the Partnership.

            (b) Covenants of the General Partner. The General Partner covenants
and agrees that:

                  (i) The General Partner shall use its best efforts to maintain
all registrations and memberships necessary for the General Partner to continue
to act as described herein and in the Prospectus and to all times comply in all
material respects with all applicable laws, rules, and regulations, to the
extent that the failure to so comply would have a materially adverse effect on
the General Partner's ability to act as described herein and in the Prospectus.

                  (ii) The General Partner shall inform the Trading Advisor
immediately as soon as the General Partner or any of its principals becomes the
subject of any investigation, claim, or proceeding of any regulatory authority
having jurisdiction over such person or becomes a named party to any litigation
materially affecting the business of the General Partner. The General Partner
shall also inform the Trading Advisor immediately if the General Partner or any
of its officers become aware of any breach of this Agreement by the General
Partner.

                  (iii) The Partnership will furnish to the Trading Advisor
copies of the Registration Statement, the Prospectus, and all amendments and
supplements thereto, in each case as soon as available.

            13.   Merger or Transfer of Assets of Trading Advisor.

            The Trading Advisor may merge or consolidate with, or sell or
otherwise transfer its advisory business, or all or a substantial portion of its
assets, any portion of its commodity trading systems or methods, or its
goodwill, to any entity that is directly or indirectly controlled by,
controlling, or under common control with, the Trading Advisor, provided that:
(i) the Trading Advisor provides written notice to the General Partner at least
30 days before the effective date of such merger, consolidation, sale, or
transfer; and (ii) such entity expressly assumes all obligations of the Trading
Advisor under this Agreement and agrees to continue to operate the business of
the Trading Advisor, substantially as such business is being conducted on the
date hereof.


                                      -16-
<PAGE>

            14.   Complete Agreement.

            This Agreement constitutes the entire agreement between the parties
with respect to the matters referred to herein, and no other agreement, verbal
or otherwise, shall be binding as between the parties unless in writing and
signed by the party against whom enforcement is sought.

            15.   Assignment.

            This Agreement may not be assigned by any party hereto without the
express written consent of the other parties hereto.

            16.   Amendment.

            This Agreement may not be amended except by the written consent of
the parties hereto.

            17.   Severability.

            The invalidity or unenforceability of any provision of this
Agreement or any covenant herein contained shall not affect the validity or
enforceability of any other provision or covenant hereof or herein contained and
any such invalid provision or covenant shall be deemed to be severable.

            18.   Disclosure Documents.

                  (a) During the term of this Agreement, the Trading Advisor
shall furnish to the General Partner promptly copies of all disclosure documents
filed with the CFTC or NFA by the Trading Advisor. The General Partner
acknowledges receipt of the Trading Advisor's disclosure document dated August
__, 1996. Failure to provide a disclosure document shall not constitute breach
of this Agreement unless the Trading Advisor fails to provide a document within
7 days of a request.

                  (b) The General Partner and the Partnership will not
distribute or supplement any promotional material relating to the Trading
Advisor unless the Trading Advisor has received reasonable prior notice of and a
copy of such promotional material and has not reasonably objected thereto in
writing.

            19.   Notices.

            All notices required to be delivered under this Agreement shall be
in writing and shall be effective when delivered personally on the day
delivered, or when given by 


                                      -17-
<PAGE>

registered or certified mail, postage prepaid, return receipt requested, on the
second business day following the day on which it is so mailed, addressed as
follows (or to such other address as the party entitled to notice shall
hereafter designate in accordance with the terms hereof):

            if to the Partnership:

                  Dean Witter Portfolio Strategy Fund L.P.
                  c/o Demeter Management Corporation
                  2 World Trade Center
                  62nd Floor
                  New York, New York  10048

            if to the General Partner:

                  Demeter Management Corporation
                  2 World Trade Center
                  62nd Floor
                  New York, New York  10048
                  Attn: Mark J. Hawley

            if to the Trading Advisor:

                  John W. Henry & Company, Inc.
                  One Glendinning Place
                  Westport, Connecticut 06880
                  Attn: Elizabeth Kenton

            20.   Survival.

            The provisions of this Agreement shall survive the termination of
this Agreement with respect to any matter arising while this Agreement was in
effect.

            21.   Governing Law.

            This Agreement shall be governed by, and construed in accordance
with, the law of the State of New York. If any action or proceeding shall be
brought by a party to this Agreement or to enforce any right or remedy under
this Agreement, each party hereto hereby consents and will submit to the
jurisdiction of the courts of the State of New York or any Federal court sitting
in the County, City and State of New York. Any action or proceeding brought by
any party to this Agreement to enforce any right, assert any claim or obtain any
relief whatsoever in connection with this Agreement shall be brought by such
party exclusively in the courts of the State of New York or any Federal court
sitting in the County, City and State of New York.


                                      -18-
<PAGE>

            22.   Remedies.

            In any action or proceeding arising out of any of the provisions of
this Agreement, the Trading Advisor agrees not to seek any prejudgment equitable
or ancillary relief. The Trading Advisor agrees that its sole remedy in any such
action or proceeding shall be to seek actual monetary damages for any breach of
this Agreement.

            23.   Headings.

            Headings to sections herein are for the convenience of the parties
only and are not intended to be part of or to affect the meaning or
interpretation of this Agreement.

            24.   Counterparts.

            This Agreement may be executed in counterparts, each of which shall
be deemed an original but all of which together shall constitute but one and the
same instrument.

            IN WITNESS WHEREOF, this Agreement has been executed for and on
behalf of the undersigned as of the day and year first above written.

                              DEAN WITTER PORTFOLIO STRATEGY FUND L.P.
                              by Demeter Management Corporation,
                                   General Partner

                              By________________________________


                              DEMETER MANAGEMENT CORPORATION

                              By________________________________


                              JOHN W. HENRY & COMPANY, INC.

                              By________________________________


<PAGE>
                                                                   Exhibit 10.04
                                ESCROW AGREEMENT

                                                                   _______, 1997

The Chase Manhattan Bank
450 W. 33rd Street, 15th Floor
New York, New York  10001

Attn:  Mr. Paul Gilkeson

      Re:   Dean Witter Portfolio Strategy Fund L.P.
            Escrow Account

Gentlemen:

            In accordance with arrangements made by Demeter Management
Corporation, a Delaware corporation (the "General Partner"), on behalf of Dean
Witter Portfolio Strategy Fund L.P. (the "Partnership"), and Dean Witter
Reynolds Inc., the selling agent for the Partnership (the "Depositor"; the
Partnership and the Depositor being herein sometimes collectively referred to as
the "Parties" or, individually, as a "Party"), the Depositor shall: (i) deliver
to you, as Escrow Agent, all subscription funds (by the direct transfer of
immediately available funds into the non-interest bearing escrow account
established by you for the Partnership, for investment in your interest bearing
money market account) received by the Depositor from each subscriber
("Subscriber" or, collectively, the "Subscribers") during the "Offering Period"
(as described in the Partnership's Prospectus, as the same may be updated,
supplemented, and amended from time to time (the "Prospectus")) in connection
with the offering to the public of Units of Limited Partnership Interest of the
Partnership (the "Units"), and (ii) promptly transmit to the General Partner a
complete report of all funds deposited with you. You, as Escrow Agent, shall
hold such subscription funds together with any additions, substitutions, or
other financial instruments in which such funds may be invested or for which
such funds may be exchanged (collectively referred to herein as the "Fund"), IN
ESCROW upon the following terms:

            1. (a) Following receipt by you of written notice from the General
Partner that the General Partner has rejected a Subscriber's subscription, in
whole or in part, during the Offering Period, you shall transmit to the
Depositor, as soon as practicable but in no event later than three business days
following receipt by you of such notice, the amount of such Subscriber's
subscription funds that shall have been deposited with you hereunder and 
<PAGE>

that the General Partner shall have notified you have been rejected and any
interest earned on the Fund and allocated to the rejected amount of such
subscription in accordance with Section 2 hereof. You shall at the same time
give notice to the Depositor of the amount of aggregate subscription funds
and/or interest so returned.

                  (b) On the second business day before the scheduled closing
(as defined in the Prospectus, the "Closing") during the Offering Period (the
Closing is currently scheduled to be held on October 1, 1997), the General
Partner shall notify you of the portion of the Fund that represents
subscriptions to be accepted by the General Partner for the Partnership equal to
the number of Units subscribed for multiplied by a price per Unit equal to 100%
of the Net Asset Value thereof as of the close of business on the last day of
the month immediately preceding the Closing. Upon receipt by you of joint
written notice from the General Partner and the Depositor on the date of the
Closing or thereafter to the effect that all of the terms and conditions with
respect to the release of subscription funds from escrow set forth in the
Prospectus have been fulfilled, you shall promptly pay and deliver to the
Partnership the portion of the Fund specified in the General Partner's prior
instructions (excluding any interest earned on the Fund and funds relating to
rejected subscriptions).

                  (c) On the date of the Closing, or as soon thereafter as
practicable, you shall transmit to the Depositor an amount representing: (i) for
each Subscriber whose subscription shall be accepted by the General Partner in
whole or in part, any interest earned on the Fund and allocated to the accepted
portion of such Subscriber's subscription in accordance with Section 2 hereof,
and (ii) for each Subscriber whose subscription shall have been rejected by the
General Partner in whole or in part but whose subscription funds shall not have
been previously returned to the Depositor by you in accordance with the first
paragraph of this Section 1, such Subscriber's subscription funds that shall
have been deposited with you hereunder and that shall have been rejected by the
General Partner, and any interest earned on the Fund and allocated to the
rejected amount of such subscription in accordance with Paragraph 2 hereof. You
shall at the same time give notice to the Depositor of the aggregate amount of
subscription funds and/or interest so returned

                  (d) Notwithstanding subparagraph (a) of this Paragraph 1, upon
receipt by you during the Offering Period of written notice from the General
Partner that a Subscriber has been rejected (because good funds representing
payment for Units have not been deposited in a Subscriber's customer account
with the Depositor or because such Subscriber has provided bad funds in the form
of a bad check, draft, or otherwise to the Depositor), you shall transmit to the
Depositor, within three business days following receipt by you of such notice,
the amount of subscription funds deposited with you hereunder relating to that
amount (the portion of such Subscriber's subscription for which good funds have
not been provided) together with any interest earned on the Fund and allocated
to such portion of such a subscription in accordance with Paragraph 2 hereof to
the date of such return, and shall immediately notify the General Partner of the
return of such funds.


                                      -2-
<PAGE>

            2. You shall hold the Fund (including any interest earned thereon)
for the account of the Partnership pending delivery to either the Partnership or
the Depositor, pursuant to Paragraphs 1 or 3 hereof, as the case may be. On each
day that subscription funds are transferred to you hereunder in immediately
available funds and receipt is confirmed before 2:00 P.M., New York City time,
you shall immediately invest such subscription funds solely in your interest
bearing money market account. If subscription funds are transferred to you in
immediately available funds and receipt is confirmed after 2:00 P.M., New York
City time, you shall so invest such funds on the next day. Interest earned on
the Fund shall be allocated by the Depositor among the Subscribers
proportionately based on (A) the amount of their respective subscriptions on
deposit in the Fund and (B) the period of time from the date that their
respective subscriptions shall have been deposited in the Fund to the earlier of
the delivery of the Fund to the Partnership at the Closing or the Depositor in
accordance with Sections 1 or 3 hereof, as the case may be.

            3. If, during the Offering Period, you are notified in writing
jointly by the Parties that the offering of Units for the Partnership has been
terminated, and that no Closing will be held, you shall transmit to the
Depositor, as soon as practicable but in no event later than three business days
after receipt by you of such notice, an amount representing the full amount of
all subscription funds that shall have been deposited with you hereunder,
together with any interest earned on the Fund in accordance with Paragraph 2
hereof. You shall at the same time give notice to the Depositor of the aggregate
amounts of subscription funds and/or interest so returned.

            4. The Parties further agree with you as follows:

                  (a) Your duties and responsibilities shall be limited solely
to those expressly set forth in this Agreement and are ministerial in nature.
You shall neither be subject to nor obliged to recognize any other agreement
between, or other direction or instruction of, any or all of the Parties or any
Subscriber even though reference thereto may be made herein; provided, however,
that with your written consent, this Agreement may be amended at any time or
times by an instrument in writing signed by the Parties.

                  (b) You are authorized, in your sole discretion, to disregard
any and all notices or instructions given by any of the Parties or by any other
person, firm, or corporation, except only such notices or instructions as are
hereunder provided for and orders or process of any court entered or issued with
or without jurisdiction. If the Fund or any part thereof is at any time
attached, garnished, or levied upon under any court order or in case the
payment, assignment, transfer, conveyance, or delivery of the Fund shall be
stayed or enjoined by any court order, or in case any order, judgment, or decree
shall be made or entered by any court affecting the Fund or any part thereof,
then and in any such event you are authorized, in your sole discretion, to rely
upon and comply with any such order, writ, judgment, or decree that you are
advised by legal counsel of your own choosing is binding upon you, and if you
comply with any such order, writ, judgment, or decree you shall not be liable to
any of the Parties or to any other person, firm, or corporation by reason of
such compliance even though


                                      -3-
<PAGE>

such order, writ, judgment, or decree may be subsequently reversed, modified,
annulled, set aside, or vacated.

                  (c) You shall be fully protected in relying upon any written
notice, demand, certificate, document, or instrument believed by you in good
faith to be genuine and to have been signed or presented by the proper person or
persons or Party or Parties. The Parties shall provide you with a list of
officers and employees who shall be authorized to deliver instructions
hereunder. You shall not be liable for any action taken or omitted by you in
connection herewith in good faith and in the exercise of your own best judgment.

                  (d) Should any dispute arise with respect to the delivery,
ownership, right of possession, and/or disposition of the subscription funds
deposited with you hereunder, or should any claim be made upon any such
subscription funds by a third party, you, upon receipt of written notice of such
dispute by any of the Parties or by a third party, are authorized and directed
to retain in your possession all or any of such subscription funds until such
dispute shall have been settled either by mutual agreement of the parties
involved or by final order, decree, or judgment of any court in the United
States.

                  (e) If for any reason funds are deposited in the escrow
account other than by transfer of immediately available funds, you shall proceed
as soon as practicable to collect checks, drafts, and other collection items at
any time deposited with you hereunder. All such collections shall be subject to
the usual collection agreement regarding items received by your commercial
banking department for deposit or collection; provided, however, that if any
check, draft, or other collection item at any time deposited with you hereunder
is returned to you as being uncollectible (except by reason of an account
closing), you shall attempt a second time to collect such item before returning
such item to the Depositor as uncollectible. Subject to the foregoing, you shall
promptly notify the Parties of any uncollectible check, draft, or other
collection item deposited with you hereunder and shall promptly return such
uncollectible item to the Depositor, in which case you shall not be liable to
pay any interest on the subscription funds represented by such uncollectible
item. In no event, however, shall you be required or have a duty to take any
legal action to enforce payment of any check or note deposited hereunder.

                  (f) You shall not be responsible for the sufficiency or
accuracy of the form, execution, validity, or genuineness of documents now or
hereafter deposited with you hereunder, or for any lack of endorsement thereon
or for any description therein, nor shall you be responsible or liable in any
respect on account of the identity, authority, or rights of the persons
executing or delivering or purporting to execute or deliver any such document,
or endorsement or this Agreement. You shall not be liable for any loss sustained
as a result of any investment made pursuant to the instructions of the Parties
or as a result of any liquidation of an investment prior to its maturity or the
failure of the Parties to give you any instructions to invest or reinvest the
Fund or any earnings thereon.

                  (g) All notices required or desired to be delivered hereunder
shall be in writing and shall be effective when delivered personally on the day
delivered, or when 


                                      -4-
<PAGE>

given by registered or certified mail, postage prepaid, return receipt
requested, on the day of receipt, addressed as follows (or to such other address
as the party entitled to notice shall hereafter designate in accordance with the
terms hereof):

                  if to the Partnership or the General Partner:

                  Demeter Management Corporation
                  Two World Trade Center, 62nd Floor
                  New York, New York  10048
                  Attn: Mr. Mark J. Hawley
                        President

                  if to the Depositor:

                  Dean Witter Reynolds Inc.
                  Two World Trade Center, 62nd Floor
                  New York, New York  10048
                  Attn: Mr. Mark J. Hawley
                        Executive Vice President

                  in either case with a copy to:

                  Cadwalader, Wickersham & Taft
                  100 Maiden Lane
                  New York, New York  10038
                  Attn: Edwin L. Lyon, Esq.

                  if to you:

                  The Chase Manhattan Bank
                  450 W. 33rd Street, 15th Floor
                  New York, New York  10001
                  Attn: Mr. Paul Gilkeson

Whenever, under the terms hereof, the time for giving a notice or performing an
act falls on a Saturday, Sunday, or legal holiday, such time shall be extended
to the next business day.

                  (h) The Depositor agrees to indemnify, defend, and hold you
harmless from and against, any and all loss, damage, tax, liability, and expense
that may be incurred by you arising out of or in connection with your duties
hereunder, except as caused by your gross negligence, bad faith, or willful
misconduct, including the legal costs and expenses of defending yourself against
any claim or liability in connection with your performance hereunder.

                  (i) You shall be paid by the Depositor a single fee of $3,000
in advance for your services with respect to the first year from the date hereof
or any portion 


                                      -5-
<PAGE>

thereof in connection herewith. In addition, the Depositor shall pay an
additional $3,000 fee for any services provided hereunder in any subsequent
year.

                  (j) It is understood that you may at any time resign hereunder
as Escrow Agent by giving written notice of your resignation to the Parties at
their address set forth above at least 20 days prior to the date specified for
such resignation to take effect, and upon the effective date of such
resignation, all property then held by you hereunder shall be delivered by you
to such person as may be designated jointly by the Parties in writing, whereupon
all your obligations hereunder shall cease and terminate. If you shall resign
prior to the conclusion of the first 60 days of the Offering Period, you shall
pay back to the Depositor an amount equal to the product of $50 and the number
of days remaining until the 60th day of the Offering Period. If you shall resign
at or after the conclusion of the first 60 days of the Offering Period, you
shall have no obligation to pay any amount back to the Depositor. If no
successor Escrow Agent has been appointed or has accepted such appointment by
such date, all your obligations hereunder shall nevertheless cease and
terminate. Your sole responsibility thereafter shall be to keep safely all
property then held by you and to deliver the same to a person designated by the
Parties hereto or in accordance with the directions of a final order or judgment
of a court of competent jurisdiction.

            5. This Agreement shall be governed by and construed in accordance
with the law of the State of New York and any action brought hereunder shall be
brought in the courts of the State of New York, sitting in the County of New
York.

            6. The undersigned Escrow Agent hereby acknowledges and agrees to
hold, deal with, and dispose of, the Fund (including any interest earned
thereon) and any other property at any time held by the Escrow Agent hereunder
in accordance with this Agreement.


                                      -6-
<PAGE>

If the foregoing Agreement is satisfactory to you, please so indicate by signing
at the place provided below.

                                   Sincerely,


                                   DEAN WITTER PORTFOLIO STRATEGY FUND L.P.

                                   By: Demeter Management Corporation


                                   By:________________________________
                                        Mark J. Hawley
                                        President


                                   DEAN WITTER REYNOLDS INC.


                                   By:________________________________
                                        Mark J. Hawley
                                        Executive Vice President

Accepted:

THE CHASE MANHATTAN BANK


By:________________________
     P.J. Gilkeson
     Vice President


<PAGE>
                                                                   EXHIBIT 23.01
INDEPENDENT AUDITORS' CONSENT
 
We  consent  to the  use  in this  Registration  Statement of  our  report dated
February 17, 1997 relating to the financial statements of Dean Witter  Portfolio
Strategy  Fund L.P.,  and our  report dated  February 17,  1997 relating  to the
statements of financial condition of Demeter Management Corporation appearing in
the Prospectus,  which  is part  of  this  Registration Statement,  and  to  the
reference to us under the heading "Experts" in such Prospectus.
 
/S/ DELOITTE & TOUCHE LLP
New York, New York
March 25, 1997


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