SCHEDULE
                              TO THE
                         MASTER AGREEMENT
                    dated as of ________, ____
                             between
              [MORGAN STANLEY CAPITAL SERVICES INC.]
                           ("Party A")
                               and
                     SATURNS TRUST NO. _____
                    ("Party B" or the "Trust")

Part 1.    Termination Provisions.

(a)   "Specified Entity" means in relation to Party A for the
      purpose of:-
      Section 5(a)(v), None Specified
      Section 5(a)(vi), None Specified
      Section 5(a)(vii), None Specified
      Section 5(b)(iv), None specified
      and in relation to Party B for the purpose of:-
      Section 5(a)(v), None Specified
      Section 5(a)(vi), None Specified
      Section 5(a)(vii), None Specified
      Section 5(b)(iv), None Specified

(b)   "Specified Transaction" means, in lieu of the meaning
      specified in Section 14, any contract or transaction
      (whether or not documented under or effected pursuant to a
      master agreement) now existing or hereafter entered into
      between Party A, any Credit Support Provider of Party A or
      any Affiliate of Party A, and Party B, any Credit Support
      Provider of Party B or any Affiliate of Party B, provided
      however, that (i) Specified Transaction shall exclude any
      contract or transaction for Specified Indebtedness and any
      securities repurchase or reverse repurchase agreement or
      similar transaction, and (ii) for the purposes of Section
      5(a)(v), Specified Transaction shall also exclude any
      contract or transaction not documented under or effected
      pursuant to a master agreement.

(c)   "Failure to Pay or Deliver", "Breach of Agreement", "Credit
      Support Default" "Misrepresentation", "Default Under
      Specified Transaction" and "Cross- Default": Section
      5(a)(i) is amended by deleting the words "if such failure
      is not remedied on or before the third Local Business Day
      after notice of such failure is given to the party."
      Sections 5(a)(ii), 5(a)(iv), 5(a)(v) and 5(a)(vi) will not
      apply to Party A or Party B (provided that a default by
      Party B under a Specified Transaction may independently
      give rise to a Trust Wind Up Event under the terms of the
      Trust Agreement dated ______, _____ between MSDW Structured
      Asset Corp. as Depositor


                                1



      and Chase Bank of Texas, National Association, as Trustee
      (the "Trust Agreement")). Section 5(a)(iii) will not apply
      to Party B.

(d)   "Specified Indebtedness" has the meaning specified in
      Section 14.

(e)   "Threshold Amount" means, with respect to a party, U.S.
      $10,000,000 (or the equivalent in another currency,
      currency unit or combination thereof).

(f)   "Credit Event Upon Merger"; "Tax Event Upon Merger":
      Sections 5(b)(iii) and 5(b)(iv) shall not apply.

(g)   The "Automatic Early Termination" provisions of Section
      6(a) will not apply to Party A and will not apply to Party
      B; provided, however, where the Event of Default is
      specified in Sections 5(a)(vii)(1),(3),(4),(5),(6) or to
      the extent analogous thereto, (8) is governed by a system
      of laws which does not permit termination to take place
      upon or after the occurrence of the relevant Event of
      Default in accordance with the terms of this Agreement,
      then the Automatic Early Termination provision of Section
      6(a) will apply to Party A and Party B.

(h)   Payments on Early Termination. "Market Quotation" and
      "Second Method" will apply for purposes of Section 6(e) of
      this Agreement; provided, however, that notwithstanding any
      other provision of this Agreement, the claim of Party A for
      any Settlement Amount arising other than as a result of a
      Debt Security Default as defined in the Trust Agreement
      shall be limited in accordance with the provisions of the
      Trust Agreement to a claim pro rata with that of the
      Unitholders under the Trust Agreement for their Unit
      Principal Balance plus accrued interest (but this proviso
      shall not apply if the Trust Agreement does not provide for
      such limitation).

(i)   "Termination Currency" means United States Dollars.

(j)   Additional Termination Event will apply. Each of the
      following shall constitute an Additional Termination Event,
      with Party B as the Affected Party:

      (i) Trust Wind-Up Event. Any "Trust Wind-Up Event" shall
      occur in respect of Party B in accordance with Section 9.01
      of the Trust Agreement:

      (ii) Debt Security Default. A "Debt Security Default" shall
      occur as defined in the Trust Agreement.

      In the case of a Trust Wind-Up Event, all Transactions
      shall be Affected Transactions. In the case of a Debt
      Security Default, unless otherwise provided in the related
      Confirmation, only the specific Transaction related to such
      Debt Security shall be an Affected Transaction.

(k)   Events of Default with respect to Party B. With respect to
      Party B only, Section 5(a)(vii) shall apply with the
      following amendments:

      (i)    Section 5(a)(vii)(2) shall not apply;


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      (ii)   Section 5(a)(vii)(3) shall take effect with the
             words "the Unitholders" substituted for "its
             creditors"; and

      (iii)  Sections 5(a)(vii)(6) and (7) shall take effect with
             the words "assets comprising the property of the
             Trust, otherwise than in accordance with the Trust
             Agreement" substituted for "all or substantially all
             its assets".


Part 2.  Tax Representations.

(a)   Payer Tax Representations. For the purpose of Section 3(e),
      Party A and Party B each makes the following
      representation:-

      It is not required by any applicable law, as modified by
      the practice of any relevant governmental revenue
      authority, of any Relevant Jurisdiction to make any
      deduction or withholding for or on account of any Tax from
      any payment (other than interest under Section 2(a)(iii),
      2(e), 6(d)(ii) or 6(e)) to be made by it to the other party
      under this Agreement. In making this representation, it may
      rely on:-

      (i)    the accuracy of any representation made by the other
             party pursuant to Section 3(f);

      (ii)   the satisfaction of the agreement of the other party
             contained in Section 4(a)(i) or 4(a)(iii) and the
             accuracy and effectiveness of any document provided
             by the other party pursuant to Section 4(a)(i) or
             4(a)(iii); and

      (iii)  the satisfaction of the agreement of the other party
             contained in Section 4(d);

      provided that it shall not be a breach of this
      representation where reliance is placed on clause (ii), and
      the other party does not deliver a form or document under
      Section 4(a)(iii) by reason of material prejudice to its
      legal or commercial position.

(b)   Payee Tax Representations. There are no payee
      representations.


Part 3.  Agreement to Deliver Documents.

P

                         
Party required
to deliver            Form/Document/               Date by which                Covered by Section
document              Certificate                  to be delivered              3(d) Representation
- --------------        --------------               ---------------              -------------------

Party A and Party B   Either (1) a signature       The earlier of the fifth     Yes
                      booklet containing           Business Day after the
                      secretary's certificate      Trade Date of the first
                      and resolutions              Transaction or upon
                      ("authorizing                execution of this
                      resolutions") authorizing    Agreement and as deemed
                      the party to enter into      necessary for any further


                                3



                      derivatives transactions     documentation.
                      of the type contemplated
                      by the parties or (2) a
                      secretary's certificate,
                      authorizing resolutions
                      and incumbency
                      certificate for such
                      party and any Credit
                      Support Provider of such
                      party reasonably
                      satisfactory in form and
                      substance to the other
                      party.

Party B               Certified copies             As soon as practicable       Yes
                      of documents evidencing      after the execution of
                      Party B's capacity to        this Agreement.
                      execute this Agreement, 
                      each Confirmation and any
                      Credit Support Document
                      (if applicable) and to
                      perform its obligations
                      hereunder and thereunder.

Party B               A written opinion of         Upon execution of this       No
                      legal counsel to Party B,    Agreement and as deemed
                      reasonably satisfactory      necessary for any further
                      in form and substance to     documentation.
                      Party A.

Party A and Party B   Such other documents as      Upon request.                No
                      the other party may
                      reasonably request



Part 4.    Miscellaneous.

(a)   Addresses for Notices.  For the purpose of Section 12(a):-
      (i)  Address for notice or communications to Party A:-
           [Morgan Stanley Capital Services Inc.
           1585 Broadway
           New York, New York 10036
           Attention:  Derivative Products Group - 3rd floor - Swaps
           Facsimile No.: 212-761-0580  Telephone No.: 212-761-2566]

      (ii) Address for notice or communications to Party B:-
           SATURNS Trust No. ______
           c/o Chase Bank of Texas, National Association, as Trustee
           55 Water Street, North Building Room 234, Windows 20 and 21


                                4



           New York, New York  10041
           Attn: Global Trust Services -- SATURNS Trust No. ______
           Facsimile No.: (713) 216-2101  Telephone No.: (713) 216-4181

(b)   Notices. Section 12(a) is amended by adding in the third
      line thereof after the phrase "messaging system" and before
      the ")" the words, "; provided, however, any such notice or
      other communication may be given by facsimile transmission
      if telex is unavailable, no telex number is supplied to the
      party providing notice, or if answer back confirmation is
      not received from the party to whom the telex is sent."

(c)   Process Agent. For the purpose of Section 13(c) of this
      Agreement, Party B irrevocably appoints as its Process
      Agent:
           Same as above address for notices

(d)   Offices. The provisions of Section 10(a) will apply to
      Party A and to Party B.

(e)   Multibranch Party. For the purpose of Section 10(c):- Party
      A is not a Multibranch Party.
      Party B is not a Multibranch Party.

(f)   "Calculation Agent" means Party A.

(g)   "Credit Support Document" means any credit support annex,
      any Confirmation and any other document any of which by its
      terms secures, guarantees or otherwise supports either or
      both parties' obligations under this Agreement[, including,
      but not limited to, the guarantee of Morgan Stanley Dean
      Witter & Co. set forth in a letter to the Trust.]

(h)   Credit Support Provider means in relation to Party A:
      [Morgan Stanley Dean Witter & Co.]

(i)   Governing Law; Jurisdiction. This Agreement, any Credit
      Support Document and each Confirmation will be governed by
      and constructed in accordance with the laws of the State of
      New York, without reference to its choice of law doctrine.
      Section 13(b) is amended by: (1) deleting "non-" from the
      second line of clause (i); and (2) deleting the final
      paragraph.

(j)   Waiver of Jury Trial. Each party waives, to the fullest
      extent permitted by applicable law, any right it may have
      to a trial by jury in respect of any Proceedings relating
      to this Agreement or any Credit Support Document.

(k)   Netting of Payment. Clause (ii) of Section 2(c) will not
      apply to any amounts payable with respect to Transactions
      from the date of this Agreement.

(l)   "Affiliate" has the meaning specified in Section 14, but
      excludes Morgan Stanley Derivative Products Inc.


                                5



Part 5.    Other Provisions.

(a)   Trustee Capacity. It is expressly understood and agreed by
      the parties hereto that insofar as this Agreement is
      executed on behalf of the Trust (i) this Agreement is
      executed and delivered by Chase Bank of Texas, National
      Association, not in its individual capacity but solely as
      Trustee under the Trust Agreement in the exercise of the
      powers and authority conferred and vested in it, (ii) each
      of the representations, undertakings and agreements herein
      made on the part of the Trust is made and intended not as
      representations, warranties, covenants, undertakings and
      agreements by Chase Bank of Texas, National Association in
      its individual capacity but is made and intended for the
      purpose of binding only the Trust and (iii) under no
      circumstances shall Chase Bank of Texas, National
      Association in its individual capacity be personally liable
      for the payment of any indebtedness or expenses of the
      Trust or be liable for the breach or failure of any
      obligation, representation, warranty or covenant made or
      undertaken by the Trust under this Agreement.

(b)   Additional Representations. Section 3 is hereby amended by
      adding at the end thereof the following Subparagraphs:

      "(g) It is an "eligible swap participant" under, and as
      defined in, 17 C.F.R. ss.35.1 and was not formed solely for
      the purposes of constituting an "eligible swap
      participant."

      (h) It has entered into this Agreement (including each
      Transaction evidenced hereby) in conjunction with its line
      of business (including financial intermediation services)
      or the financing of its business.

      (i) Non-Reliance. It is acting for its own account, and it
      has made its own independent decisions to enter into that
      Transaction and as to whether that Transaction is
      appropriate or proper for it based upon its own judgment
      and upon advice from such advisers as it has deemed
      necessary. It is not relying on any communication (written
      or oral) of the other party as investment advice or as a
      recommendation to enter into that Transaction; it being
      understood that information and explanations related to the
      terms and conditions of a Transaction shall not be
      considered investment advice or a recommendation to enter
      into that Transaction. No communication (written or oral)
      received from the other party shall be deemed to be an
      assurance or guarantee as to the expected results of that
      Transaction.

      (j) Assessment and Understanding. It is capable of
      assessing the merits of and understanding (on its own
      behalf or through independent professional advice), and
      understands and accepts, the terms, conditions and risks of
      that Transaction. It is also capable of assuming, and
      assumes, the risks of that Transaction.

      (k) Status of Parties. The other party is not acting as a
      fiduciary for or adviser to it in respect of that
      Transaction. It is entering into this Agreement, any Credit
      Support


                                6



      Document to which it is a party, each Transaction and any
      other documentation relating to this Agreement or any
      Transaction as principal (and not as agent or in any other
      capacity, fiduciary or otherwise)."

(c)   Setoff and Related Matters.

      (i) The occurrence or designation of an Early Termination
      Date on account of an Event of Default with respect to a
      party hereto ("Y") shall constitute a material breach and
      event of default (howsoever described) under all Specified
      Transactions to which Y is a party, whereupon the
      Nondefaulting Party ("X") or any Affiliate X shall have the
      right to terminate, liquidate and otherwise close out any
      such Specified Transactions
      (and Y shall be liable for any damages suffered by X and
      any Affiliate of X as a result thereof). For purposes of
      Section 6(a) of this Agreement, each Transaction will be
      deemed to be outstanding until all obligations (including
      payment, delivery and exchange obligations) in respect of
      such Transaction have been fully discharged and satisfied.

      (ii) Upon such occurrence, or designation of any Early
      Termination Date on account on an Event of Default, any
      amount payable by X or any Affiliate of X under this
      Agreement, any Specified Transaction with Y, or in respect
      of any other matured, liquidated or terminated obligation
      to Y will, at the option of X or any Affiliate of X (and
      without prior notice to Y), be reduced by its setoff and
      recoupment against any amount(s) payable by Y to X or any
      Affiliate of X under this Agreement, any Specified
      Transaction with Y or in respect of any other matured,
      liquidated or terminated obligation of Y (and any such
      amount(s) payable by Y will be discharged promptly and in
      all respects to the extent it is so setoff). X or an
      Affiliate of X, as appropriate, will give notice to Y after
      any setoff and recoupment is effected under this paragraph.
      For purposes of the foregoing, X and any Affiliate of X
      shall be entitled to convert any obligations denominated in
      one currency into another at such rates of exchange as it
      deems appropriate in good faith and in a commercially
      reasonable manner, and amounts may be set off and recouped
      irrespective of the currency, place of payment or booking
      office of any obligation to or from Y. If an obligation is
      unascertained, X or any Affiliate of X, as appropriate, may
      in good faith estimate that obligation and setoff and
      recoup in respect of that estimate, subject to the relevant
      party's accounting to the other(s) when the obligation is
      ascertained. All obligations of X and any Affiliate of X
      under this Agreement, any Specified Transaction with Y or
      in respect of any other matured, liquidated or terminated
      obligation to Y are subject to the condition precedent that
      Y shall have performed all of its obligations to X and any
      Affiliate of X under this Agreement, any Specified
      Transaction with X and in respect of any other matured,
      liquidated or terminated obligation of Y. Party A and Party
      B and their Affiliates intend that all Transactions and
      Specified Transactions be treated as mutual and part of a
      single, indivisible contractual and business relationship.

      (iii) If either party ("C"), its Credit Support Provider or
      any Affiliate of C has reasonable grounds for insecurity
      regarding a potential default under this Agreement or any
      Specified Transaction by the other party ("D"), any Credit
      Support Provider or


                                7



      any Affiliate of D, then C or any Affiliate of C may
      transfer its rights and obligations under this Agreement or
      any agreement for a Specified Transaction to any Affiliate
      of C or to C, and each of the parties hereto agrees to such
      transfer and to use its best efforts to obtain any required
      consents from its relevant Affiliate to any such transfer.

      (iv) Nothing in this Part 5(c) shall be effective to create
      a charge or other security interest. This Part 5(c) shall
      be without prejudice and in addition to any right of
      setoff, recoupment, combination of accounts, lien or other
      right to which any party or any of its Affiliates is at any
      time otherwise entitled (whether by operation of law,
      contract or otherwise).

(d)   Confirmations. Party A will deliver to Party B a
      Confirmation relating to each Transaction.

(e)   Security. As collateral security for the prompt and
      complete payment and performance when due of the
      obligations of Party B hereunder, Party B hereby grants to
      Party A a continuing security interest in all of Party B's
      right, title and interest in the Trust Property as such
      term is defined in the Trust Agreement pursuant to which
      Party B was formed. Such security interest shall remain in
      full force and effect until Party A has received amounts
      due to it hereunder.

      (f) Further Acknowledgments. Each party agrees and
      acknowledges that:

      (i)   Each transfer of funds, securities or other property
            under this Agreement or any Transaction hereunder
            constitutes a transfer that may not be avoided under
            Sections 544, 545, 547, 548(a)(2) or 548(b) of Title
            11 of the United States Code (the "Bankruptcy Code").

      (ii)  The rights given to each party hereunder upon an
            Event of Default by the other to cause the
            liquidation and termination of this Agreement and
            each Transaction hereunder, and to set off mutual
            debts and claims in connection therewith, may not be
            stayed, limited or avoided under the Bankruptcy Code,
            including, without limitation, Section 362, 365(c) or
            105(a) thereof.

(g)   Non-Petition. Prior to the date that is one year and one
      day after all distributions in respect of the Units issued
      by the Trust have been made, Party A shall not take any
      action or institute any proceeding against the Trust under
      the United States Bankruptcy Code or any other liquidation,
      insolvency, bankruptcy, moratorium, reorganization or
      similar law ("Insolvency Law") applicable to the Trust, now
      or hereafter in effect, or which would be reasonably likely
      to cause the Trust to be subject to, or seek the protection
      of, any such Insolvency Law.

(h)   Rating Agency Confirmation. No amendment to this Agreement
      shall take effect unless and until the Rating Agencies
      Condition specified in the Trust Agreement shall be
      satisfied with respect to such amendment.


                                8



      IN WITNESS WHEREOF, the parties have executed this Schedule
      by their duly authorized officers as of the date hereof.

                          [MORGAN STANLEY CAPITAL SERVICES INC.]


                          By: ______________________________
                              Name:
                              Title:
                              Date:

                              SATURNS TRUST NO. ______
                              By: Chase Bank of Texas, National
                                  Association, as Trustee

                          By: ____________________________
                              Name:
                              Title:
                              Date:


                                9