AGREEMENT AND PLAN OF MERGER

                                    BETWEEN

                            CUC INTERNATIONAL INC.

                                      AND

                               HFS INCORPORATED

                           DATED AS OF MAY 27, 1997

                                                                      
                                                                      


                             TABLE OF CONTENTS

                                                                  PAGE

                                 ARTICLE I

                                 THE MERGER

          SECTION 1.1.  The Merger . . . . . . . . . . . . . . . .   2
          SECTION 1.2.  Closing  . . . . . . . . . . . . . . . . .   2
          SECTION 1.3.  Effective Time . . . . . . . . . . . . . .   2
          SECTION 1.4.  Effects of the Merger  . . . . . . . . . .   2
          SECTION 1.5.  Certificate of Incorporation and By-laws .   2
          SECTION 1.6.  Boards, Committees and Officers  . . . . .   3
          SECTION 1.7.  Name of the Surviving Corporation  . . . .   3
          SECTION 1.8.  Reservation of Right to Revise 
                         Transaction . . . . . . . . . . . . . . .   4

                                  ARTICLE II

                 EFFECT OF THE MERGER ON THE CAPITAL STOCK
                      OF THE CONSTITUENT CORPORATIONS;
                          EXCHANGE OF CERTIFICATES

          SECTION 2.1.  Effect on Capital Stock  . . . . . . . . .   4
          SECTION 2.2.  Exchange of Certificates . . . . . . . . .   5
          SECTION 2.3.  Certain Adjustments. . . . . . . . . . . .  10

                                  ARTICLE III
                       REPRESENTATIONS AND WARRANTIES

          SECTION 3.1.  Representations and Warranties of HFS  . .  11
               (a)  Organization, Standing and Corporate Power . .  11
               (b)  Subsidiaries . . . . . . . . . . . . . . . . .  12
               (c)  Capital Structure  . . . . . . . . . . . . . .  12
               (d)  Authority; Noncontravention  . . . . . . . . .  14
               (e)  SEC Documents; Undisclosed Liabilities . . . .  16
               (f)  Information Supplied . . . . . . . . . . . . .  16
               (g)  Absence of Certain Changes or Events . . . . .  17
               (h)  Compliance with Applicable Laws; Litigation  .  18
               (i)  Absence of Changes in Benefit Plans  . . . . .  19
               (j)  ERISA Compliance . . . . . . . . . . . . . . .  20
               (k)  Taxes  . . . . . . . . . . . . . . . . . . . .  22
               (l)  Voting Requirements  . . . . . . . . . . . . .  23
               (m)  State Takeover Statutes  . . . . . . . . . . .  23
               (n)  Accounting Matters . . . . . . . . . . . . . .  24
               (o)  Brokers  . . . . . . . . . . . . . . . . . . .  24
               (p)  Opinion of Financial Advisor . . . . . . . . .  24
               (q)  Ownership of CUC Common Stock  . . . . . . . .  24
               (r)  Intellectual Property  . . . . . . . . . . . .  25
               (s)  Certain Contracts  . . . . . . . . . . . . . .  25
          SECTION 3.2.  Representations and Warranties of CUC  . .  26
               (a)  Organization, Standing and Corporate Power . .  26
               (b)  Subsidiaries . . . . . . . . . . . . . . . . .  27
               (c)  Capital Structure  . . . . . . . . . . . . . .  27
               (d)  Authority; Noncontravention  . . . . . . . . .  29
               (e)  SEC Documents; Undisclosed Liabilities . . . .  30
               (f)  Information Supplied . . . . . . . . . . . . .  31
               (g)  Absence of Certain Changes or Events . . . . .  32
               (h)  Compliance with Applicable Laws; Litigation  .  33
               (i)  Absence of Changes in Benefit Plans  . . . . .  34
               (j)  ERISA Compliance . . . . . . . . . . . . . . .  34
               (k)  Taxes  . . . . . . . . . . . . . . . . . . . .  37
               (l)  Voting Requirements  . . . . . . . . . . . . .  38
               (m)  State Takeover Statutes  . . . . . . . . . . .  38
               (n)  Accounting Matters . . . . . . . . . . . . . .  39
               (o)  Brokers  . . . . . . . . . . . . . . . . . . .  39
               (p)  Opinion of Financial Advisor . . . . . . . . .  39
               (q)  Ownership of HFS Common Stock  . . . . . . . .  39
               (r)  Intellectual Property  . . . . . . . . . . . .  40
               (s)  Certain Contracts  . . . . . . . . . . . . . .  40

                                 ARTICLE IV

                 COVENANTS RELATING TO CONDUCT OF BUSINESS

          SECTION 4.1.  Conduct of Business  . . . . . . . . . . .  41
          SECTION 4.2.  No Solicitation by HFS . . . . . . . . . .  48
          SECTION 4.3.  No Solicitation by CUC . . . . . . . . . .  51

                                 ARTICLE V

                           ADDITIONAL AGREEMENTS

          SECTION 5.1.  Preparation of the Form S-4 and the Joint
                         Proxy Statement; Stockholders Meetings  .  54
          SECTION 5.2.  Letters of HFS's Accountants . . . . . . .  56
          SECTION 5.3.  Letters of CUC's Accountants . . . . . . .  56
          SECTION 5.4.  Access to Information; Confidentiality . .  57
          SECTION 5.5.  Best Efforts . . . . . . . . . . . . . . .  57
          SECTION 5.6.  Stock Options  . . . . . . . . . . . . . .  58
          SECTION 5.7.  HFS Stock Plans and Certain
                         Employee Matters  . . . . . . . . . . . .  60
          SECTION 5.8.  Indemnification, Exculpation and 
                         Insurance . . . . . . . . . . . . . . . .  61
          SECTION 5.9.  Fees and Expenses  . . . . . . . . . . . .  62
          SECTION 5.10. Public Announcements . . . . . . . . . . .  63
          SECTION 5.11. Affiliates . . . . . . . . . . . . . . . .  64
          SECTION 5.12. NYSE Listing . . . . . . . . . . . . . . .  64
          SECTION 5.13. Stockholder Litigation . . . . . . . . . .  65
          SECTION 5.14. Tax Treatment  . . . . . . . . . . . . . .  65
          SECTION 5.15. Pooling of Interests . . . . . . . . . . .  65
          SECTION 5.16. Standstill Agreements; Confidentiality
                         Agreement . . . . . . . . . . . . . . . .  65
          SECTION 5.17. Company Officers; Employment Contracts;
                         Equity Awards.  . . . . . . . . . . . . .  65
          SECTION 5.18.  Post-Merger Operations  . . . . . . . . .  67
          SECTION 5.19. Conveyance Taxes . . . . . . . . . . . . .  67
          SECTION 5.20. HFS Convertible Notes  . . . . . . . . . .  67
          SECTION 5.21. Transition Planning  . . . . . . . . . . .  68

                                  ARTICLE VI
                            CONDITIONS PRECEDENT

          SECTION 6.1.  Conditions to Each Party's Obligation to
                         Effect the Merger . . . . . . . . . . . .  68
          SECTION 6.2.  Conditions to Obligations of CUC . . . . .  70
          SECTION 6.3.  Conditions to Obligations of HFS . . . . .  71
          SECTION 6.4.  Frustration of Closing
                         Conditions  . . . . . . . . . . . . . . .  73

                                ARTICLE VII

                     TERMINATION, AMENDMENT AND WAIVER

          SECTION 7.1.  Termination  . . . . . . . . . . . . . . .  73
          SECTION 7.2.  Effect of Termination  . . . . . . . . . .  75
          SECTION 7.3.  Amendment  . . . . . . . . . . . . . . . .  75
          SECTION 7.4.  Extension; Waiver  . . . . . . . . . . . .  75
          SECTION 7.5.  Procedure for Termination, Amendment,
                         Extension or Waiver . . . . . . . . . . .  75

                              ARTICLE VIII

                             GENERAL PROVISIONS

          SECTION 8.1.  Nonsurvival of Representations and 
                         Warranties  . . . . . . . . . . . . . . .  76
          SECTION 8.2.  Notices  . . . . . . . . . . . . . . . . .  76
          SECTION 8.3.  Definitions  . . . . . . . . . . . . . . .  77
          SECTION 8.4.  Interpretation . . . . . . . . . . . . . .  78
          SECTION 8.5.  Counterparts . . . . . . . . . . . . . . .  79
          SECTION 8.6.  Entire Agreement; No Third-Party 
                         Beneficiaries . . . . . . . . . . . . . .  79
          SECTION 8.7.  Governing Law  . . . . . . . . . . . . . .  79
          SECTION 8.8.  Assignment . . . . . . . . . . . . . . . .  79
          SECTION 8.9.  Consent to Jurisdiction  . . . . . . . . .  79
          SECTION 8.10. Headings . . . . . . . . . . . . . . . . .  80
          SECTION 8.11. Severability . . . . . . . . . . . . . . .  80

     Exhibit A-1     Certificate of Incorporation of Surviving
                     Corporation
     Exhibit A-2     Amended and Restated By-laws of the Surviving
                     Corporation
     Exhibit B       Corporate Governance of Surviving Corporation
                     Following the Effective Time
     Exhibit C       Form of Affiliate Letter
     Exhibit D       CUC Tax Representations
     Exhibit E       HFS Tax Representations




                    AGREEMENT AND PLAN OF MERGER dated as of May
          27, 1997, between CUC INTERNATIONAL INC., a Delaware
          corporation ("CUC"), and HFS INCORPORATED, a Delaware
          corporation ("HFS").

                    WHEREAS, the respective Boards of Directors of
          CUC and HFS have each approved the merger of HFS with and
          into CUC (the "Merger"), upon the terms and subject to
          the conditions set forth in this Agreement, whereby each
          issued and outstanding share of common stock, par value
          $.01 per share, of HFS ("HFS Common Stock"), other than
          shares owned by CUC or HFS, will be converted into the
          right to receive the Merger Consideration (as defined in
          Section 1.8);

                    WHEREAS, the respective Boards of Directors of
          CUC and HFS have each determined that the Merger and the
          other transactions contemplated hereby are consistent
          with, and in furtherance of, their respective business
          strategies and goals and are in the best interests of
          their respective stockholders;

                    WHEREAS, CUC and HFS desire to make certain
          representations, warranties, covenants and agreements in
          connection with the Merger and also to prescribe various
          conditions to the Merger;

                    WHEREAS, for federal income tax purposes, it is
          intended that the Merger will qualify as a reorganization
          under the provisions of Section 368(a) of the Internal
          Revenue Code of 1986, as amended (the "Code"); and

                    WHEREAS, for financial accounting purposes, it
          is intended that the Merger will be accounted for as a
          pooling of interests transaction under United States
          generally accepted accounting principles ("GAAP").

                    NOW, THEREFORE, in consideration of the
          representations, warranties, covenants and agreements
          contained in this Agreement, the parties agree as
          follows:

                                  ARTICLE I

                                  THE MERGER

                    SECTION 1.1.  The Merger.  Upon the terms and
          subject to the conditions set forth in this Agreement,
          and in accordance with the Delaware General Corporation
          Law (the "DGCL"), HFS shall be merged with and into CUC
          at the Effective Time (as defined in Section 1.3). 
          Following the Effective Time, CUC shall be the surviving
          corporation (the "Surviving Corporation") and shall
          succeed to and assume all the rights and obligations of
          HFS in accordance with the DGCL.

                    SECTION 1.2.  Closing.  The closing of the
          Merger (the "Closing") will take place at 10:00 a.m. on a
          date to be specified by the parties (the "Closing Date"),
          which shall be no later than the second business day
          after satisfaction or waiver of the conditions set forth
          in Article VI, unless another time or date is agreed to
          by the parties hereto.  The Closing will be held at such
          location in the City of New York as is agreed to by the
          parties hereto.

                    SECTION 1.3.  Effective Time.  Subject to the
          provisions of this Agreement, as soon as practicable on 
          the Closing Date, the parties shall cause the Merger to
          be consummated by filing a certificate of merger or other
          appropriate documents (in any such case, the "Certificate
          of Merger") executed in accordance with the relevant
          provisions of the DGCL and shall make all other filings
          or recordings required under the DGCL.  The Merger shall
          become effective at such time as the Certificate of
          Merger is duly filed with the Secretary of State of
          Delaware, or at such subsequent date or time as CUC and
          HFS shall agree and specify in the Certificate of Merger
          (the time the Merger becomes effective being hereinafter
          referred to as the "Effective Time").

                    SECTION 1.4.  Effects of the Merger.  The
          Merger shall have the effects set forth in Section 259 of
          the DGCL.

                    SECTION 1.5.  Certificate of Incorporation and
          By-laws of the Surviving Corporation.  The restated
          certificate of incorporation of CUC, as in effect
          immediately prior to the Effective Time, shall be amended
          as of the Effective Time as described in Exhibit A-1 and,
          as so amended, such restated certificate of incorporation
          shall be the restated certificate of incorporation of the
          Surviving Corporation until thereafter changed or amended
          as provided therein or by applicable law (as so amended,
          the "Restated Certificate").  The by-laws of CUC, as in
          effect immediately prior to the Effective Time, shall be
          amended as of the Effective Time as described in Exhibit
          A-2 and, as so amended, such by-laws shall be the by-laws
          of the Surviving Corporation until thereafter changed or
          amended as provided therein or by applicable law (as so
          amended, the "Restated By-laws").  Such amendment and
          restatement of CUC's certificate of incorporation and by-
          laws are referred to herein as the "Certificate
          Amendment" and the "By-laws Amendment," respectively.

                    SECTION 1.6.  Boards, Committees and Officers. 
          Prior to the Effective Time, CUC shall adopt resolutions
          in the form attached hereto as part of Exhibit B,
          establishing the Board of CUC and committees thereof from
          and after the Effective Time.  From and after the
          Effective Time, the members of the Board of Directors,
          the committees of the Board of Directors, the composition
          of such committees (including chairmen thereof) and the
          officers of the Surviving Corporation shall be as set
          forth on or designated in accordance with the Restated
          Certificate, the Restated By-laws and Exhibit B hereto
          until the earlier of the resignation or removal of any
          individual set forth on or designated in accordance with
          the Restated Certificate, the Restated By-laws and
          Exhibit B or until their respective successors are duly
          elected and qualified, as the case may be, or until as
          otherwise provided in the Restated Certificate, the
          Restated By-laws and Exhibit B.  If any officer set forth
          on or designated in accordance with Exhibit B ceases to
          be a full-time employee of either HFS or CUC at or before
          the Effective Time, CUC, in the case of any such employee
          of CUC on the date hereof or any such employee to be
          designated by CUC, or HFS, in the case of any such
          employee of HFS on the date hereof or any such employee
          to be designated by HFS, shall designate another person
          to serve in such person's stead.

                    SECTION 1.7.  Name of the Surviving
          Corporation.  The name of the Surviving Corporation shall
          be as agreed to between the parties prior to the
          Effective Time.

                    SECTION 1.8.  Reservation of Right to Revise
          Transaction.  If each of HFS and CUC agree, the parties
          hereto may change the method of effecting the business
          combination between CUC and HFS, and each party shall
          cooperate in such efforts, including to provide for (a) a
          merger of a wholly owned subsidiary of CUC with and into
          HFS, or (b) mergers (to occur substantially
          simultaneously) of separate subsidiaries of a Delaware
          corporation jointly formed by CUC and HFS for such
          purpose into each of CUC and HFS; provided, however, that
          no such change shall (i) alter or change the amount or
          kind of consideration to be issued to holders of HFS
          Common Stock as provided for in this Agreement (the
          "Merger Consideration"), other than, in the case of
          clause (b) above, the issuer thereof, (ii) adversely
          affect the proposed accounting treatment for the Merger
          or the tax treatment to CUC, HFS or their respective
          stockholders as a result of receiving the Merger
          Consideration, or (iii) materially delay receipt of any
          approval referred to in Section 6.1(c) or the
          consummation of the transactions contemplated by this
          Agreement.

                                  ARTICLE II

                  EFFECT OF THE MERGER ON THE CAPITAL STOCK
                       OF THE CONSTITUENT CORPORATIONS;
                           EXCHANGE OF CERTIFICATES

                    SECTION 2.1.  Effect on Capital Stock.  As of
          the Effective Time, by virtue of the Merger and without
          any action on the part of the holder of any shares of HFS
          Common Stock:

                    (a)  Cancellation of Treasury Stock and CUC-
          Owned Stock.  Each share of HFS Common Stock that is
          owned by HFS or CUC shall automatically be cancelled and
          retired and shall cease to exist, and no consideration
          shall be delivered in exchange therefor.

                    (b)  Conversion of HFS Common Stock.  Subject
          to Section 2.2(e), each issued and outstanding share of
          HFS Common Stock (other than shares to be cancelled in
          accordance with Section 2.1(a)) shall be converted into
          the right to receive 2.4031 (the "Exchange Ratio")
          validly issued, fully paid and nonassessable shares of
          common stock, par value $.01 per share ("CUC Common
          Stock"), of CUC.  As of the Effective Time, all such
          shares of HFS Common Stock shall no longer be outstanding
          and shall automatically be cancelled and retired and
          shall cease to exist, and each holder of a certificate
          representing any such shares of HFS Common Stock shall
          cease to have any rights with respect thereto, except the
          right to receive the Merger Consideration and any cash in
          lieu of fractional shares of CUC Common Stock to be
          issued or paid in consideration therefor upon surrender
          of such certificate in accordance with Section 2.2,
          without interest.

                    SECTION 2.2.  Exchange of Certificates.  (a) 
          Exchange Agent.  As of the Effective Time, CUC shall
          enter into an agreement with such bank or trust company
          as may be designated by CUC and reasonably satisfactory
          to HFS (the "Exchange Agent"), which shall provide that
          CUC shall deposit with the Exchange Agent as of the
          Effective Time, for the benefit of the holders of shares
          of HFS Common Stock, for exchange in accordance with this
          Article II, through the Exchange Agent, certificates
          representing the shares of CUC Common Stock (such shares
          of CUC Common Stock, together with any dividends or
          distributions with respect thereto with a record date
          after the Effective Time, any Excess Shares (as defined
          in Section 2.2(e)) and any cash (including cash proceeds
          from the sale of the Excess Shares) payable in lieu of
          any fractional shares of CUC Common Stock being
          hereinafter referred to as the "Exchange Fund") issuable
          pursuant to Section 2.1 in exchange for outstanding
          shares of HFS Common Stock.

                    (b)  Exchange Procedures.  As soon as
          reasonably practicable after the Effective Time, the
          Exchange Agent shall mail to each holder of record of a
          certificate or certificates which immediately prior to
          the Effective Time represented outstanding shares of HFS
          Common Stock (the "Certificates") whose shares were
          converted into the right to receive the Merger
          Consideration pursuant to Section 2.1, (i) a letter of
          transmittal (which shall specify that delivery shall be
          effected, and risk of loss and title to the Certificates
          shall pass, only upon delivery of the Certificates to the
          Exchange Agent and shall be in such form and have such
          other provisions as CUC and HFS may reasonably specify)
          and (ii) instructions for use in surrendering the
          Certificates in exchange for the Merger Consideration. 
          Upon surrender of a Certificate for cancellation to the
          Exchange Agent, together with such letter of transmittal,
          duly executed, and such other documents as may reasonably
          be required by the Exchange Agent, the holder of such
          Certificate shall be entitled to receive in exchange
          therefor a certificate representing that number of whole
          shares of CUC Common Stock which such holder has the
          right to receive pursuant to the provisions of this
          Article II, certain dividends or other distributions in
          accordance with Section 2.2(c) and cash in lieu of any
          fractional share of CUC Common Stock in accordance with
          Section 2.2(e), and the Certificate so surrendered shall
          forthwith be cancelled.  Notwithstanding anything to the
          contrary contained herein, no certificate representing
          CUC Common Stock or cash in lieu of a fractional share
          interest shall be delivered to a person who is an
          affiliate of HFS for purposes of qualifying the Merger
          for pooling of interests accounting treatment under
          Opinion 16 of the APB and applicable Securities and
          Exchange Commission ("SEC") rules and regulations, unless
          such person has executed and delivered an agreement in
          the form of Exhibit C hereto.  In the event of a
          surrender of a Certificate representing shares of HFS
          Common Stock which are not registered in the transfer
          records of HFS under the name of the person surrendering
          such Certificate, a certificate representing the proper
          number of shares of CUC Common Stock may be issued to a
          person other than the person in whose name the
          Certificate so surrendered is registered if such
          Certificate shall be properly endorsed or otherwise be in
          proper form for transfer and the person requesting such
          issuance shall pay any transfer or other taxes required
          by reason of the issuance of shares of CUC Common Stock
          to a person other than the registered holder of such
          Certificate or establish to the satisfaction of CUC that
          such tax has been paid or is not applicable.  Until
          surrendered as contemplated by this Section 2.2, each
          Certificate shall be deemed at any time after the
          Effective Time to represent only the right to receive
          upon such surrender the Merger Consideration which the
          holder thereof has the right to receive in respect of
          such Certificate pursuant to the provisions of this
          Article II, certain dividends or other distributions in
          accordance with Section 2.2(c) and cash in lieu of any
          fractional share of CUC Common Stock in accordance with
          Section 2.2(e).  No interest shall be paid or will accrue
          on any cash payable to holders of Certificates pursuant
          to the provisions of this Article II.

                    (c)  Distributions with Respect to Unexchanged
          Shares.  No dividends or other distributions with respect
          to CUC Common Stock with a record date after the
          Effective Time shall be paid to the holder of any
          unsurrendered Certificate with respect to the shares of
          CUC Common Stock represented thereby, and, in the case of
          Certificates representing HFS Common Stock, no cash
          payment in lieu of fractional shares shall be paid to any
          such holder pursuant to Section 2.2(e), and all such
          dividends, other distributions and cash in lieu of
          fractional shares of CUC Common Stock shall be paid by
          CUC to the Exchange Agent and shall be included in the
          Exchange Fund, in each case until the surrender of such
          Certificate in accordance with this Article II.  Subject
          to the effect of applicable escheat or similar laws,
          following surrender of any such Certificate there shall
          be paid to the holder of the certificate representing
          whole shares of CUC Common Stock issued in exchange
          therefor, without interest, (i) at the time of such
          surrender, the amount of dividends or other distributions
          with a record date after the Effective Time theretofore
          paid with respect to such whole shares of CUC Common
          Stock and, in the case of Certificates representing HFS
          Common Stock, the amount of any cash payable in lieu of a
          fractional share of CUC Common Stock to which such holder
          is entitled pursuant to Section 2.2(e) and (ii) at the
          appropriate payment date, the amount of dividends or
          other distributions with a record date after the
          Effective Time and with a payment date subsequent to such
          surrender payable with respect to such whole shares of
          CUC Common Stock.

                    (d)  No Further Ownership Rights in HFS Common
          Stock.  All shares of CUC Common Stock issued upon the
          surrender for exchange of Certificates in accordance with
          the terms of this Article II (including any cash paid
          pursuant to this Article II) shall be deemed to have been
          issued (and paid) in full satisfaction of all rights
          pertaining to the shares of HFS Common Stock, theretofore
          represented by such Certificates, subject, however, to
          the Surviving Corporation's obligation to pay any
          dividends or make any other distributions with a record
          date prior to the Effective Time which may have been
          declared or made by HFS on such shares of HFS Common
          Stock which remain unpaid at the Effective Time, and
          there shall be no further registration of transfers on
          the stock transfer books of the Surviving Corporation of
          the shares of HFS Common Stock which were outstanding
          immediately prior to the Effective Time.  If, after the
          Effective Time, Certificates are presented to the
          Surviving Corporation or the Exchange Agent for any
          reason, they shall be cancelled and exchanged as provided
          in this Article II, except as otherwise provided by law.

                          (e)  No Fractional Shares.  (i)  No
               certificates or scrip representing fractional shares
               of CUC Common Stock shall be issued upon the
               surrender for exchange of Certificates, no dividend
               or distribution of CUC shall relate to such
               fractional share interests and such fractional share
               interests will not entitle the owner thereof to vote
               or to any rights of a stockholder of CUC.

                          (ii)  As promptly as practicable
               following the Effective Time, the Exchange Agent
               shall determine the excess of (A) the number of
               whole shares of CUC Common Stock delivered to the
               Exchange Agent by CUC pursuant to Section 2.2(a)
               over (B) the aggregate number of whole shares of CUC
               Common Stock to be distributed to former holders of
               HFS Common Stock pursuant to Section 2.2(b) (such
               excess being herein called the "Excess Shares"). 
               Following the Effective Time, the Exchange Agent
               shall, on behalf of the former stockholders of HFS,
               sell the Excess Shares at then-prevailing prices on
               the New York Stock Exchange, Inc. ("NYSE"), all in
               the manner provided in Section 2.2(e)(iii).

                          (iii)  The sale of the Excess Shares by
               the Exchange Agent shall be executed on the NYSE
               through one or more member firms of the NYSE and
               shall be executed in round lots to the extent
               practicable.  The Exchange Agent shall use
               reasonable efforts to complete the sale of the
               Excess Shares as promptly following the Effective
               Time as, in the Exchange Agent's sole judgment, is
               practicable consistent with obtaining the best
               execution of such sales in light of prevailing
               market conditions.  Until the net proceeds of such
               sale or sales have been distributed to the holders
               of Certificates formerly representing HFS Common
               Stock, the Exchange Agent shall hold such proceeds
               in trust for such holders (the "Common Shares
               Trust").  The Surviving Corporation shall pay all
               commissions, transfer taxes and other out-of-pocket
               transaction costs, including the expenses and
               compensation of the Exchange Agent incurred in
               connection with such sale of the Excess Shares.  The
               Exchange Agent shall determine the portion of the
               Common Shares Trust to which each former holder of
               HFS Common Stock is entitled, if any, by multiplying
               the amount of the aggregate net proceeds comprising
               the Common Shares Trust by a fraction, the numerator
               of which is the amount of the fractional share
               interest to which such former holder of HFS Common
               Stock is entitled (after taking into account all
               shares of HFS Common Stock held at the Effective
               Time by such holder) and the denominator of which is
               the aggregate amount of fractional share interests
               to which all former holders of HFS Common Stock are
               entitled.

                          (iv)  Notwithstanding the provisions of
               Section 2.2(e)(ii) and (iii), the Surviving
               Corporation may elect at its option, exercised prior
               to the Effective Time, in lieu of the issuance and
               sale of Excess Shares and the making of the payments
               hereinabove contemplated, to pay each former holder
               of HFS Common Stock an amount in cash equal to the
               product obtained by multiplying (A) the fractional
               share interest to which such former holder (after
               taking into account all shares of HFS Common Stock
               held at the Effective Time by such holder) would
               otherwise be entitled by (B) the average of the
               closing prices of the CUC Common Stock as reported
               on the NYSE Composite Transaction Tape (as reported
               in The Wall Street Journal, or, if not reported
               therein, any other authoritative source) during the
               ten trading days preceding the fifth trading day
               prior to the Closing Date (such average, the
               "Average CUC Price"), and, in such case, all
               references herein to the cash proceeds of the sale
               of the Excess Shares and similar references shall be
               deemed to mean and refer to the payments calculated
               as set forth in this Section 2.2(e)(iv).

                          (v)  As soon as practicable after the
               determination of the amount of cash, if any, to be
               paid to holders of Certificates formerly
               representing HFS Common Stock with respect to any
               fractional share interests, the Exchange Agent shall
               make available such amounts to such holders of
               Certificates formerly representing HFS Common Stock
               subject to and in accordance with the terms of
               Section 2.2(c).

                    (f)  Termination of Exchange Fund.  Any portion
          of the Exchange Fund which remains undistributed to the
          holders of the Certificates for six months after the
          Effective Time shall be delivered to CUC, upon demand,
          and any holders of the Certificates who have not
          theretofore complied with this Article II shall
          thereafter look only to CUC for payment of their claim
          for Merger Consideration, any dividends or distributions
          with respect to CUC Common Stock and any cash in lieu of
          fractional shares of CUC Common Stock.

                    (g)  No Liability.  None of CUC, HFS, the
          Surviving Corporation or the Exchange Agent shall be
          liable to any person in respect of any shares of CUC
          Common Stock, any dividends or distributions with respect
          thereto, any cash in lieu of fractional shares of CUC
          Common Stock or any cash from the Exchange Fund, in each
          case delivered to a public official pursuant to any
          applicable abandoned property, escheat or similar law.

                    (h)  Investment of Exchange Fund.  The Exchange
          Agent shall invest any cash included in the Exchange
          Fund, as directed by CUC, on a daily basis.  Any interest
          and other income resulting from such investments shall be
          paid to CUC.

                    (i)  Lost Certificates.  If any Certificate
          shall have been lost, stolen or destroyed, upon the
          making of an affidavit of that fact by the person
          claiming such Certificate to be lost, stolen or destroyed
          and, if required by the Surviving Corporation, the
          posting by such person of a bond in such reasonable
          amount as the Surviving Corporation may direct as
          indemnity against any claim that may be made against it
          with respect to such Certificate, the Exchange Agent
          shall issue in exchange for such lost, stolen or
          destroyed Certificate the Merger Consideration and, if
          applicable, any unpaid dividends and distributions on
          shares of CUC Common Stock deliverable in respect thereof
          and any cash in lieu of fractional shares, in each case
          pursuant to this Agreement.

                    SECTION 2.3.  Certain Adjustments.  If between
          the date hereof and the Effective Time, the outstanding
          shares of HFS Common Stock or of CUC Common Stock shall
          be changed into a different number of shares by reason of
          any reclassification, recapitalization, split-up,
          combination or exchange of shares, or any dividend
          payable in stock or other securities shall be declared
          thereon with a record date within such period, the
          Exchange Ratio shall be adjusted accordingly to provide
          to the holders of HFS Common Stock the same economic
          effect as contemplated by this Agreement prior to such
          reclassification, recapitalization, split-up,
          combination, exchange or dividend.

                                 ARTICLE III

                        REPRESENTATIONS AND WARRANTIES

                    SECTION 3.1.  Representations and Warranties of
          HFS.  Except as disclosed in the HFS Filed SEC Documents
          (as defined in Section 3.1(g)) or as set forth on the
          Disclosure Schedule delivered by HFS to CUC prior to the
          execution of this Agreement (the "HFS Disclosure
          Schedule") and making reference to the particular
          subsection of this Agreement to which exception is being
          taken, HFS represents and warrants to CUC as follows:

                    (a)  Organization, Standing and Corporate
               Power.  (i)  Each of HFS and its subsidiaries (as
               defined in Section 8.3) is a corporation or other
               legal entity duly organized, validly existing and in
               good standing (with respect to jurisdictions which
               recognize such concept) under the laws of the
               jurisdiction in which it is organized and has the
               requisite corporate or other power, as the case may
               be, and authority to carry on its business as now
               being conducted, except, as to subsidiaries, for
               those jurisdictions where the failure to be so
               organized, existing or in good standing individually
               or in the aggregate would not have a material
               adverse effect (as defined in Section 8.3) on HFS. 
               Each of HFS and its subsidiaries is duly qualified
               or licensed to do business and is in good standing
               (with respect to jurisdictions which recognize such
               concept) in each jurisdiction in which the nature of
               its business or the ownership, leasing or operation
               of its properties makes such qualification or
               licensing necessary, except for those jurisdictions
               where the failure to be so qualified or licensed or
               to be in good standing individually or in the
               aggregate would not have a material adverse effect
               on HFS.  

                          (ii)  HFS has delivered to CUC prior to
               the execution of this Agreement complete and correct
               copies of its certificate of incorporation and by-
               laws, as amended to date.

                          (iii) In all material respects, the
               minute books of HFS contain accurate records of all
               meetings and accurately reflect all other actions
               taken by the stockholders, the Board of Directors
               and all committees of the Board of Directors of HFS
               since January 1, 1995. 

                    (b)  Subsidiaries.  Exhibit 21 to HFS's Annual
          Report on Form 10-K for the fiscal year ended December
          31, 1996 and Section 3.1(b) of the HFS Disclosure
          Schedule together include all the subsidiaries of HFS
          which as of the date of this Agreement are Significant
          Subsidiaries (as defined in Rule 1-02 of Regulation S-X
          of the SEC).  All the outstanding shares of capital stock
          of, or other equity interests in, each such Significant
          Subsidiary have been validly issued and are fully paid
          and nonassessable and are owned directly or indirectly by
          HFS, free and clear of all pledges, claims, liens,
          charges, encumbrances and security interests of any kind
          or nature whatsoever (collectively, "Liens") and free of
          any other restriction (including any restriction on the
          right to vote, sell or otherwise dispose of such capital
          stock or other ownership interests).

                    (c)  Capital Structure.  The authorized capital
          stock of HFS consists of 600,000,000 shares of HFS Common
          Stock and 10,000,000 shares of preferred stock, par value
          $1.00 per share ("HFS Preferred Stock").  At the close of
          business on May 21, 1997:  (i) 158,291,401 shares of HFS
          Common Stock were issued and outstanding; (ii) no shares
          of HFS Common Stock were held by HFS in its treasury;
          (iii) no shares of HFS Preferred Stock were issued and
          outstanding; (iv) 40,013,543 shares of HFS Common Stock
          were reserved for issuance pursuant to the HFS 1992 Stock
          Option Plan and the HFS 1993 Stock Option Plan, complete
          and correct copies of which have been delivered to CUC
          (such plans, collectively, the "HFS Stock Plans"); and
          (v) 8,080,102 shares of HFS Common Stock were reserved
          for issuance upon conversion of HFS's 4-1/2% Convertible
          Senior Notes due 1999 and 3,598,320 shares of HFS Common
          Stock were reserved for issuance upon conversion of HFS's
          4-3/4% Convertible Senior Notes due 2003 (collectively,
          the "HFS Convertible Securities").  Section 3.1(c) of the
          HFS Disclosure Schedule sets forth a complete and correct
          list, as of May 21, 1997, of the number of shares of HFS
          Common Stock subject to employee stock options or other
          rights to purchase or receive HFS Common Stock granted
          under the HFS Stock Plans (collectively, "HFS Employee
          Stock Options"), the dates of grant and exercise prices
          thereof.  All outstanding shares of capital stock of HFS
          are, and all shares which may be issued will be, when
          issued, duly authorized, validly issued, fully paid and
          nonassessable and not subject to preemptive rights. 
          Except as set forth in this Section 3.1(c) and except for
          changes since May 21, 1997 resulting from the issuance of
          shares of HFS Common Stock pursuant to the HFS Employee
          Stock Options, the HFS Convertible Securities or as
          permitted by Section 4.1(a)(i)(y) and 4.1(a)(ii), (x)
          there are not issued, reserved for issuance or
          outstanding (A) any shares of capital stock or other
          voting securities of HFS, (B) any securities of HFS or
          any HFS subsidiary convertible into or exchangeable or
          exercisable for shares of capital stock or voting
          securities of HFS, (C) any warrants, calls, options or
          other rights to acquire from HFS or any HFS subsidiary,
          and any obligation of HFS or any HFS subsidiary to issue,
          any capital stock, voting securities or securities
          convertible into or exchangeable or exercisable for
          capital  stock or voting securities of HFS, and (y) there
          are no outstanding obligations of HFS or any HFS
          subsidiary to repurchase, redeem or otherwise acquire any
          such securities or to issue, deliver or sell, or cause to
          be issued, delivered or sold, any such securities.  There
          are no outstanding (A) securities of HFS or any HFS
          subsidiary convertible into or exchangeable or
          exercisable for shares of capital stock or other voting
          securities or ownership interests in any HFS subsidiary,
          (B) warrants, calls, options or other rights to acquire
          from HFS or any HFS subsidiary, and any obligation of HFS
          or any HFS subsidiary to issue, any capital stock, voting
          securities or other ownership interests in, or any
          securities convertible into or exchangeable or
          exercisable for any capital stock, voting securities or
          ownership interests in, any HFS subsidiary or (C)
          obligations of HFS or any HFS subsidiary to repurchase,
          redeem or otherwise acquire any such outstanding
          securities of HFS subsidiaries or to issue, deliver or
          sell, or cause to be issued, delivered or sold, any such
          securities.  Neither HFS nor any HFS subsidiary is a
          party to any agreement restricting the transfer of,
          relating to the voting of, requiring registration of, or
          granting any preemptive or, except as provided by the
          terms of the HFS Employee Stock Options and the HFS
          Convertible Securities,  antidilutive rights with respect
          to, any securities of the type referred to in the two
          preceding sentences.  Other than the HFS subsidiaries,
          HFS does not directly or indirectly beneficially own any
          securities or other beneficial ownership interests in any
          other entity except for non-controlling investments made
          in the ordinary course of business in entities which are
          not individually or in the aggregate material to HFS and
          its subsidiaries as a whole.

                    (d)  Authority; Noncontravention.  HFS has all
          requisite corporate power and authority to enter into
          this Agreement and, subject, in the case of the Merger,
          to the HFS Stockholder Approval (as defined in Section
          3.1(l)) to consummate the transactions contemplated by
          this Agreement.  The execution and delivery of this
          Agreement by HFS and the consummation by HFS of the
          transactions contemplated by this Agreement have been
          duly authorized by all necessary corporate action on the
          part of HFS, subject, in the case of the Merger, to the
          HFS Stockholder Approval.  This Agreement has been duly
          executed and delivered by HFS and, assuming the due
          authorization, execution and delivery by CUC, constitutes
          the legal, valid and binding obligation of HFS,
          enforceable against HFS in accordance with its terms. 
          The execution and delivery of this Agreement do not, and
          the consummation of the transactions contemplated by this
          Agreement and compliance with the provisions of this
          Agreement will not, conflict with, or result in any
          violation of, or default (with or without notice or lapse
          of time, or both) under, or give rise to a right of
          termination, cancellation or acceleration of any
          obligation or loss of a benefit under, or result in the
          creation of any Lien upon any of the properties or assets
          of HFS or any of its subsidiaries under, (i) the
          certificate of incorporation or by-laws of HFS or the
          comparable organizational documents of any of its
          subsidiaries, (ii) any loan or credit agreement, note,
          bond, mortgage, indenture, lease or other agreement,
          instrument, permit, concession, franchise, license or
          similar authorization applicable to HFS or any of its
          subsidiaries or their respective properties or assets or
          (iii) subject to the governmental filings and other
          matters referred to in the following sentence, any
          judgment, order, decree, statute, law, ordinance, rule or
          regulation applicable to HFS or any of its subsidiaries
          or their respective properties or assets, other than, in
          the case of clauses (ii) and (iii), any such conflicts,
          violations, defaults, rights, losses or Liens that
          individually or in the aggregate would not (x) have a
          material adverse effect on HFS or (y) reasonably be
          expected to impair the ability of HFS to perform its
          obligations under this Agreement.  No consent, approval,
          order or authorization of, action by or in respect of, or
          registration, declaration or filing with, any federal,
          state, local or foreign government, any court,
          administrative, regulatory or other governmental agency,
          commission or authority or any nongovernmental self-
          regulatory agency, commission or authority (a
          "Governmental Entity") is required by or with respect to
          HFS or any of its subsidiaries in connection with the
          execution and delivery of this Agreement by HFS or the
          consummation by HFS of the transactions contemplated by
          this Agreement, except for (1) the filing of a pre-merger
          notification and report form by HFS under the Hart-Scott-
          Rodino Antitrust Improvements Act of 1976, as amended
          (the "HSR Act"); (2) the filing with the SEC of (A) a
          proxy statement relating to the HFS Stockholders Meeting
          (as defined in Section 5.1(b)) (such proxy statement,
          together with the proxy statement relating to the CUC
          Stockholders Meeting (as defined in Section 5.1(c)), in
          each case as amended or supplemented from time to time,
          the "Joint Proxy Statement"), and (B) such reports under
          Section 13(a), 13(d), 15(d) or 16(a) of the Securities
          Exchange Act of 1934, as amended (the "Exchange Act"), as
          may be required in connection with this Agreement and the
          transactions contemplated by this Agreement; (3) the
          filing of the Certificate of Merger with the Secretary of
          State of Delaware and appropriate documents with the
          relevant authorities of other states in which HFS is
          qualified to do business and such filings with
          Governmental Entities to satisfy the applicable
          requirements of state securities or "blue sky" laws; and
          (4) such consents, approvals, orders or authorizations
          the failure of which to be made or obtained individually
          or in the aggregate would not (x) have a material adverse
          effect on HFS or (y) reasonably be expected to impair the
          ability of HFS to perform its obligations under this
          Agreement.

                    (e)  SEC Documents; Undisclosed Liabilities. 
          HFS has filed all required registration statements,
          prospectuses, reports, schedules, forms, statements and
          other documents (including exhibits and all other
          information incorporated therein) with the SEC since
          December 31, 1994 (the "HFS SEC Documents").  As of their
          respective dates, the HFS SEC Documents complied in all
          material respects with the requirements of the Securities
          Act of 1933, as amended (the "Securities Act"), or the
          Exchange Act, as the case may be, and the rules and
          regulations of the SEC promulgated thereunder applicable
          to such HFS SEC Documents, and none of the HFS SEC
          Documents when filed contained any untrue statement of a
          material fact or omitted to state a material fact
          required to be stated therein or necessary in order to
          make the statements therein, in light of the
          circumstances under which they were made, not misleading. 
          The financial statements of each of HFS or PHH
          Corporation ("PHH") included in the HFS SEC Documents
          comply as to form, as of their respective dates of filing
          with the SEC, in all material respects with applicable
          accounting requirements and the published rules and
          regulations of the SEC with respect thereto, have been
          prepared in accordance with GAAP (except, in the case of
          unaudited statements, as permitted by Form 10-Q of the
          SEC) applied on a consistent basis during the periods
          involved (except as may be indicated in the notes
          thereto) and fairly present the consolidated financial
          position of HFS and its consolidated subsidiaries (and
          PHH, where applicable) as of the dates thereof and the
          consolidated results of their operations and cash flows
          for the periods then ended (subject, in the case of
          unaudited statements, to normal year-end audit
          adjustments and except that, in the case of financial
          statements included therein which were later restated to
          account for one or more business combinations accounted
          for as poolings-of-interest, such original financial
          statements do not reflect such restatements).  Except (i)
          as reflected in such financial statements or in the notes
          thereto or (ii) for liabilities incurred in connection
          with this Agreement or the transactions contemplated
          hereby, neither HFS nor any of its subsidiaries has any
          liabilities or obligations of any nature which,
          individually or in the aggregate, would have a material
          adverse effect on HFS.

                    (f)  Information Supplied.  None of the
          information supplied or to be supplied by HFS
          specifically for inclusion or incorporation by reference
          in (i) the registration statement on Form S-4 to be filed
          with the SEC by CUC in connection with the issuance of
          CUC Common Stock in the Merger (the "Form S-4") will, at
          the time the Form S-4 becomes effective under the
          Securities Act, contain any untrue statement of a
          material fact or omit to state any material fact required
          to be stated therein or necessary to make the statements
          therein not misleading or (ii) the Joint Proxy Statement
          will, at the date it is first mailed to HFS's
          stockholders or at the time of the HFS Stockholders
          Meeting, contain any untrue statement of a material fact
          or omit to state any material fact required to be stated
          therein or necessary in order to make the statements
          therein, in light of the circumstances under which they
          are made, not misleading.  The Joint Proxy Statement will
          comply as to form in all material respects with the
          requirements of the Exchange Act and the rules and
          regulations thereunder, except that no representation or
          warranty is made by HFS with respect to statements made
          or incorporated by reference therein based on information
          supplied by CUC specifically for inclusion or
          incorporation by reference in the Joint Proxy Statement.

                    (g)  Absence of Certain Changes or Events. 
          Except for liabilities incurred in connection with this
          Agreement or the transactions contemplated hereby and
          except as permitted by Section 4.1(a), since December 31,
          1996, HFS and its subsidiaries have conducted their
          business only in the ordinary course or as disclosed in
          any HFS SEC Document filed since such date and prior to
          the date hereof, and there has not been (i) any material
          adverse change (as defined in Section 8.3) in HFS, (ii)
          any declaration, setting aside or payment of any dividend
          or other distribution (whether in cash, stock or
          property) with respect to any of HFS's capital stock,
          (iii) any split, combination or reclassification of any
          of HFS's capital stock or any issuance or the
          authorization of any issuance of any other securities in
          respect of, in lieu of or in substitution for shares of
          HFS's capital stock, except for issuances of HFS Common
          Stock upon conversion of HFS Convertible Securities or
          upon the exercise of HFS Employee Stock Options, in each
          case awarded prior to the date hereof in accordance with
          their present terms or issued pursuant to Section 4.1(a),
          (iv)(A) any granting by HFS or any of its subsidiaries to
          any current or former director, executive officer or
          other key employee of HFS or its subsidiaries of any
          increase in compensation, bonus or other benefits, except
          for normal increases as a result of promotions, normal
          increases of base pay in the ordinary course of business
          or as was required under any employment agreements in
          effect as of December 31, 1996, (B) any granting by HFS
          or any of its subsidiaries to any such current or former
          director, executive officer or key employee of any
          increase in severance or termination pay, or (C) any
          entry by HFS or any of its subsidiaries into, or any
          amendment of, any employment, deferred compensation,
          consulting, severance, termination or indemnification
          agreement with any such current or former director,
          executive officer or key employee, (v) except insofar as
          may have been disclosed in HFS SEC Documents filed and
          publicly available prior to the date of this Agreement
          (as amended to the date hereof, the "HFS Filed SEC
          Documents") or required by a change in GAAP, any change
          in accounting methods, principles or practices by HFS
          materially affecting its assets, liabilities or business,
          (vi) except insofar as may have been disclosed in the HFS
          Filed SEC Documents, any tax election that individually
          or in the aggregate would have a material adverse effect
          on HFS or any of its tax attributes or any settlement or
          compromise of any material income tax liability, or (vii)
          any action taken by HFS or any of the HFS subsidiaries
          during the period from January 1, 1997 through the date
          of this Agreement that, if taken during the period from
          the date of this Agreement through the Effective Time
          would constitute a breach of Section 4.1(a).

                    (h)  Compliance with Applicable Laws;
               Litigation.  (i)  HFS, its subsidiaries and
               employees hold all permits, licenses, variances,
               exemptions, orders, registrations and approvals of
               all Governmental Entities which are required for the
               operation of the businesses of HFS and its
               subsidiaries (the "HFS Permits"), except where the
               failure to have any such HFS Permits individually or
               in the aggregate would not have a material adverse
               effect on HFS.  HFS and its subsidiaries are in
               compliance with the terms of the HFS Permits and all
               applicable statutes, laws, ordinances, rules and
               regulations, except where the failure so to comply
               individually or in the aggregate would not have a
               material adverse effect on HFS.  As of the date of
               this Agreement, except as disclosed in the HFS Filed
               SEC Documents, no action, demand, requirement or
               investigation by any Governmental Entity and no
               suit, action or proceeding by any person, in each
               case with respect to HFS or any of its subsidiaries
               or any of their respective properties is pending or,
               to the knowledge (as defined in Section 8.3) of HFS,
               threatened, other than, in each case, those the
               outcome of which individually or in the aggregate
               would not (A) have a material adverse effect on HFS
               or (B) reasonably be expected to impair the ability
               of HFS to perform its obligations under this
               Agreement or prevent or materially delay the
               consummation of any of the transactions contemplated
               by this Agreement. 

                          (ii)  Neither HFS nor any HFS subsidiary
               is subject to any outstanding order, injunction or
               decree which has had or, insofar as can be
               reasonably foreseen, individually or in the
               aggregate will have a material adverse effect on
               HFS.

                    (i)  Absence of Changes in Benefit Plans.  HFS
          has delivered to CUC true and complete copies of (i) all
          severance and employment agreements of HFS with
          directors, executive officers or key employees, (ii) all
          severance programs and policies of each of HFS and each
          HFS subsidiary, and (iii) all plans or arrangements of
          HFS and each HFS subsidiary relating to its employees
          which contain change in control provisions.  Since
          December 31, 1996, there has not been any adoption or
          amendment in any material respect by HFS or any of its
          subsidiaries of any collective bargaining agreement,
          employment agreement, consulting agreement, severance
          agreement or any material bonus, pension, profit sharing,
          deferred compensation, incentive compensation, stock
          ownership, stock purchase, stock option, phantom stock,
          retirement, vacation, severance, disability, death
          benefit, hospitalization, medical or other plan,
          arrangement or understanding providing benefits to any
          current or former employee, officer or director of HFS or
          any of its wholly owned subsidiaries (collectively, the
          "HFS Benefit Plans"), or any material change in any
          actuarial or other assumption used to calculate funding
          obligations with respect to any HFS pension plans, or any
          material change in the manner in which contributions to
          any HFS pension plans are made or the basis an which such
          contributions are determined.  

                    (j)  ERISA Compliance.  (i)  With respect to
               the HFS Benefit Plans, no event has occurred and, to
               the knowledge of HFS, there exists no condition or
               set of circumstances, in connection with which HFS
               or any of its subsidiaries could be subject to any
               liability that individually or in the aggregate
               would have a material adverse effect on HFS under
               the Employee Retirement Income Security Act of 1974,
               as amended ("ERISA"), the Code or any other
               applicable law.

                          (ii)  Each HFS Benefit Plan has been
               administered in accordance with its terms, except
               for any failures so to administer any HFS Benefit
               Plan that individually or in the aggregate would not
               have a material adverse effect on HFS.  HFS, its
               subsidiaries and all the HFS Benefit Plans have been
               operated, and are, in compliance with the applicable
               provisions of ERISA, the Code and all other
               applicable laws and the terms of all applicable
               collective bargaining agreements, except for any
               failures to be in such compliance that individually
               or in the aggregate would not have a material
               adverse effect on HFS.  Each HFS Benefit Plan that
               is intended to be qualified under Section 401(a) or
               401(k) of the Code has received a favorable
               determination letter from the IRS that it is so
               qualified and each trust established in connection
               with any HFS Benefit Plan that is intended to be
               exempt from federal income taxation under Section
               501(a) of the Code has received a determination
               letter from the IRS that such trust is so exempt. 
               To the knowledge of HFS, no fact or event has
               occurred since the date of any determination letter
               from the IRS which is reasonably likely to affect
               adversely the qualified status of any such HFS
               Benefit Plan or the exempt status of any such trust.

                          (iii)  Neither HFS nor any of its
               subsidiaries has incurred any unsatisfied liability
               under Title IV of ERISA (other than liability for
               premiums to the Pension Benefit Guaranty Corporation
               arising in the ordinary course).  No HFS Benefit
               Plan has incurred an "accumulated funding
               deficiency" (within the meaning of Section 302 of
               ERISA or Section 412 of the Code) whether or not
               waived.  To the knowledge of HFS, there are not any
               facts or circumstances that would materially change
               the funded status of any HFS Benefit Plan that is a
               "defined benefit" plan (as defined in Section 3(35)
               of ERISA) since the date of the most recent
               actuarial report for such plan.  No HFS Benefit Plan
               is a "multiemployer plan" within the meaning of
               Section 3(37) of ERISA.

                          (iv)  With respect to each of the HFS
               Benefit Plans (other than any multiemployer plan)
               that is subject to Title IV of ERISA, the present
               value of accrued benefits under each such plan,
               based upon the actuarial assumptions used for
               funding purposes in the most recent actuarial report
               prepared by such plan's actuary with respect to such
               plan, did not, as of its latest valuation date,
               exceed the then current value of the aggregate
               assets of such plans allocable to such accrued
               benefits in any material respect.  With respect to
               any HFS Benefit Plan that is a multiemployer plan,
               (A) none of HFS nor any of its subsidiaries has any
               contingent liability under Section 4204 of ERISA,
               and no circumstances exist that present a material
               risk that any such plan will go into reorganization,
               and (B) the aggregate withdrawal liability of HFS
               and its subsidiaries, computed as if a complete
               withdrawal by HFS and any of its subsidiaries had
               occurred under each such HFS Benefit Plan on the
               date hereof, would not be material.

                          (v)  No HFS Benefit Plan provides
               medical benefits (whether or not insured), with
               respect to current or former employees after
               retirement or other termination of service (other
               than coverage mandated by applicable law
               or benefits, the full cost of which is borne by the
               current or former employee) other than individual
               arrangements the amounts of which are not material.

                          (vi)  As of the date of this Agreement,
               neither HFS nor any of its subsidiaries is a party
               to any collective bargaining or other labor union
               contract applicable to persons employed by HFS or
               any of its subsidiaries and no collective bargaining
               agreement is being negotiated by HFS or any of its
               subsidiaries.  As of the date of this Agreement,
               there is no labor dispute, strike or work stoppage
               against HFS or any of its subsidiaries pending or,
               to the knowledge of HFS, threatened which may
               interfere with the respective business activities of
               HFS or any of its subsidiaries, except where such
               dispute, strike or work stoppage individually or in
               the aggregate would not have a material adverse
               effect on HFS.  As of the date of this Agreement, to
               the knowledge of HFS, none of HFS, any of its
               subsidiaries or any of their respective
               representatives or employees has committed any
               material unfair labor practice in connection with
               the operation of the respective businesses of HFS or
               any of its subsidiaries, and there is no material
               charge or complaint against HFS or any of its
               subsidiaries by the National Labor Relations Board
               or any comparable governmental agency pending or
               threatened in writing.

                          (vii)  No employee of HFS will be
               entitled to any material payment, additional
               benefits or any acceleration of the time of payment
               or vesting of any benefits under any HFS Benefit
               Plan as a result of the transactions contemplated by
               this Agreement (either alone or in conjunction with
               any other event such as a termination of
               employment), except that all HFS Employee Stock
               Options will vest as of the Effective Time as a
               result of the Merger.

                          (k)  Taxes.  (i)  Each of HFS and its
               subsidiaries has filed all material tax returns and
               reports required to be filed by it and all such
               returns and reports are complete and correct in all
               material respects, or requests for extensions to
               file such returns or reports have been timely filed,
               granted and have not expired, except to the extent
               that such failures to file, to be complete or
               correct or to have extensions granted that remain in
               effect individually or in the aggregate would not
               have a material adverse effect on HFS.  HFS and each
               of its subsidiaries has paid (or HFS has paid on its
               behalf) all taxes (as defined herein) shown as due
               on such returns, and the most recent financial
               statements contained in the HFS Filed SEC Documents
               reflect an adequate reserve in accordance with GAAP
               for all taxes payable by HFS and its subsidiaries
               for all taxable periods and portions thereof accrued
               through the date of such financial statements.

                          (ii)  No deficiencies for any taxes have
               been proposed, asserted or assessed against HFS or
               any of its subsidiaries that are not adequately
               reserved for, except for deficiencies that
               individually or in the aggregate would not have a
               material adverse effect on HFS.  No federal income
               tax returns of HFS and each of its subsidiaries
               consolidated in such returns have closed by virtue
               of the applicable statute of limitations.

                          (iii)  Neither HFS nor any of its
               subsidiaries has taken any action or knows of any
               fact, agreement, plan or other circumstance that is
               reasonably likely to prevent the Merger from
               qualifying as a reorganization within the meaning of
               Section 368(a) of the Code.

                          (iv)  As used in this Agreement, "taxes"
               shall include all (x) federal, state, local or
               foreign income, property, sales, excise and other
               taxes or similar governmental charges, including any
               interest, penalties or additions with respect
               thereto, (y) liability for the payment of any
               amounts of the type described in (x) as a result of
               being a member of an affiliated, consolidated,
               combined or unitary group, and (z) liability for the
               payment of any amounts as a result of being party to
               any tax sharing agreement or as a result of any
               express or implied obligation to indemnify any other
               person with respect to the payment of any amounts of
               the type described in clause (x) or (y).

                    (l)  Voting Requirements.  The affirmative vote
          at the HFS Stockholders Meeting (the "HFS Stockholder
          Approval") of (i) the holders of a majority of all
          outstanding shares of HFS Common Stock to adopt this
          Agreement is the only vote of the holders of any class or
          series of HFS's capital stock necessary to approve and
          adopt this Agreement and the transactions contemplated
          hereby, including the Merger and (ii) the holders of a
          majority of all shares of HFS Common Stock casting votes
          is the only vote of the holders of any class or series of
          HFS's capital stock necessary to approve the New CUC
          Stock Plan (as defined in Section 5.17(e)).

                    (m)  State Takeover Statutes.  The Board of
          Directors of HFS has approved this Agreement and the
          transactions contemplated hereby and, assuming the
          accuracy of CUC's representation and warranty contained
          in Section 3.2(q), such approval constitutes approval of
          the Merger and the other transactions contemplated hereby
          by the HFS Board of Directors under the provisions of
          Section 203 of the DGCL such that Section 203 of the DGCL
          does not apply to this Agreement and the transactions
          contemplated hereby.  To the knowledge of HFS, no other
          state takeover statute is applicable to the Merger or the
          other transactions contemplated hereby.

                    (n)  Accounting Matters.  To its knowledge,
          neither HFS nor any of its affiliates (as such term is
          used in Section 5.11) has taken or agreed to take any
          action that would prevent the business combination to be
          effected by the Merger from being accounted for as a
          pooling of interests and HFS has no reason to believe
          that the Merger will not qualify for "pooling of
          interests" accounting.

                    (o)  Brokers.  No broker, investment banker,
          financial advisor or other person other than Bear Stearns
          & Co. Inc. ("Bear Stearns"), the fees and expenses of
          which will be paid by HFS, is entitled to any broker's,
          finder's, financial advisor's or other similar fee or
          commission in connection with the transactions
          contemplated by this Agreement based upon arrangements
          made by or on behalf of HFS.  HFS has furnished to CUC
          true and complete copies of all agreements under which
          any such fees or expenses are payable and all
          indemnification and other agreements related to the
          engagement of the persons to whom such fees are payable.

                    (p)  Opinion of Financial Advisor.  HFS has
          received the opinion of Bear Stearns dated the date of
          this Agreement, to the effect that, as of such date, the
          Exchange Ratio for the conversion of HFS Common Stock
          into CUC Common Stock is fair from a financial point of
          view to holders of shares of HFS Common Stock (other than
          CUC and its affiliates), a signed copy of which opinion
          has been delivered to CUC, it being understood and agreed
          by CUC that such opinion is for the benefit of the Board
          of Directors of HFS and may not be relied upon by CUC,
          its affiliates or any of their respective stockholders.

                    (q)  Ownership of CUC Common Stock.  As of the
          date hereof, neither HFS nor, to its knowledge without
          independent investigation, any of its affiliates, (i)
          beneficially owns (as defined in Rule 13d-3 under the
          Exchange Act), directly or indirectly, or (ii) is party
          to any agreement, arrangement or understanding for the
          purpose of acquiring, holding, voting or disposing of, in
          each case, shares of capital stock of CUC.

                    (r)  Intellectual Property.  HFS and its
          subsidiaries own or have a valid license to use all
          trademarks, service marks, trade names, patents and
          copyrights (including any registrations or applications
          for registration of any of the foregoing) (collectively,
          the "HFS Intellectual Property") necessary to carry on
          its business substantially as currently conducted except
          for such HFS Intellectual Property the failure of which
          to own or validly license individually or in the
          aggregate would not have a material adverse effect on
          HFS.  Neither HFS nor any such subsidiary has received
          any notice of infringement of or conflict with, and, to
          HFS's knowledge, there are no infringements of or
          conflicts (i) with the rights of others with respect to
          the use of, or (ii) by others with respect to, any HFS
          Intellectual Property that individually or in the
          aggregate, in either such case, would have a material
          adverse effect on HFS.

                    (s)  Certain Contracts.  Except as set forth in
          the HFS Filed SEC Documents, neither HFS nor any of its
          subsidiaries is a party to or bound by (i) any "material
          contract" (as such term is defined in Item 601(b)(10) of
          Regulation S-K of the SEC), (ii) any non-competition
          agreement or any other agreement or obligation which
          purports to limit in any material respect the manner in
          which, or the localities in which, all or any material
          portion of the business of HFS and its subsidiaries
          (including, for purposes of this Section 3.1(s), CUC and
          its subsidiaries, assuming the Merger has taken place),
          taken as a whole, is or would be conducted, or (iii) any
          contract or other agreement which would prohibit or
          materially delay the consummation of the Merger or any of
          the transactions contemplated by this Agreement (all
          contracts of the type described in clauses (i) and (ii)
          being referred to herein as "HFS Material Contracts"). 
          Each HFS Material Contract is valid and binding on HFS
          (or, to the extent an HFS subsidiary is a party, such
          subsidiary) and is in full force and effect, and HFS and
          each HFS subsidiary have in all material respects
          performed all obligations required to be performed by
          them to date under each HFS Material Contract, except
          where such noncompliance, individually or in the
          aggregate, would not have a material adverse effect on
          HFS.  Neither HFS nor any HFS subsidiary knows of, or has
          received notice of, any violation or default under (nor,
          to the knowledge of HFS, does there exist any condition
          which with the passage of time or the giving of notice or
          both would result in such a violation or default under)
          any HFS Material Contract.

                    SECTION 3.2.  Representations and Warranties of
          CUC.  Except as disclosed in the CUC Filed SEC Documents
          (as defined in Section 3.2(g)) or as set forth on the
          Disclosure Schedule delivered by CUC to HFS prior to the
          execution of this Agreement (the "CUC Disclosure
          Schedule") and making reference to the particular
          subsection of this Agreement to which exception is being
          taken, CUC represents and warrants to HFS as follows:

                    (a)  Organization, Standing and Corporate
               Power.  (i)  Each of CUC and its subsidiaries is a
               corporation or other legal entity duly organized,
               validly existing and in good standing (with respect
               to jurisdictions which recognize such concept) under
               the laws of the jurisdiction in which it is
               organized and has the requisite corporate or other
               power, as the case may be, and authority to carry on
               its business as now being conducted, except, as to
               subsidiaries, for those jurisdictions where the
               failure to be so organized, existing or in good
               standing individually or in the aggregate would not
               have a material adverse effect on CUC.  Each of CUC
               and its subsidiaries is duly qualified or licensed
               to do business and is in good standing (with respect
               to jurisdictions which recognize such concept) in
               each jurisdiction in which the nature of its
               business or the ownership, leasing or operation of
               its properties makes such qualification or licensing
               necessary, except for those jurisdictions where the
               failure to be so qualified or licensed or to be in
               good standing individually or in the aggregate would
               not have a material adverse effect on CUC.

                          (ii)  CUC has delivered to HFS prior to
               the execution of this Agreement complete and correct
               copies of its certificate of incorporation and by-
               laws, as amended to date.

                          (iii)  In all material respects, the
               minute books of CUC contain accurate records of all
               meetings and accurately reflect all other actions
               taken by the stockholders, the Board of Directors
               and all committees of the Board of Directors of CUC
               since January 1, 1995.

                    (b)  Subsidiaries.  Exhibit 21 to CUC's Annual
          Report on Form 10-K for the fiscal year ended January 31,
          1997 includes all the subsidiaries of CUC which as of the
          date of this Agreement are Significant Subsidiaries.  All
          the outstanding shares of capital stock of, or other
          equity interests in, each such Significant Subsidiary
          have been validly issued and are fully paid and
          nonassessable and are owned directly or indirectly by
          CUC, free and clear of all Liens and free of any other
          restriction (including any restriction on the right to
          vote, sell or otherwise dispose of such capital stock or
          other ownership interests).

                    (c)  Capital Structure.  The authorized capital
          stock of CUC consists of 600,000,000 shares of CUC Common
          Stock and 1,000,000 shares of preferred stock, par value
          $.01 per share, of CUC ("CUC Preferred Stock").  At the
          close of business on May 22, 1997:  (i) 409,329,930
          shares of CUC Common Stock were issued and outstanding
          (including shares of restricted CUC Common Stock); (ii)
          6,168,405 shares of CUC Common Stock were held by CUC in
          its treasury; (iii) no shares of CUC Preferred Stock were
          issued and outstanding; (iv) 62,155,579 shares of CUC
          Common Stock were reserved for issuance pursuant to the
          CUC 1990 Director Stock Option Plan, the CUC 1992
          Directors Stock Option Plan, the CUC 1994 Directors Stock
          Option Plan, the CUC 1992 Employee Stock Option Plan, the
          CUC 1992 Bonus and Salary Replacement Stock Option Plan,
          the CUC 1987 Stock Option Plan, the 1989 Restricted Stock
          Plan, the 1994 Employee Stock Purchase Plan, the 1997
          Stock Option Plan, certain CUC non-plans options, the
          Sierra 1987 Stock Option Plan, the Sierra 1995 Stock
          Option Plan and Award Plan, the Knowledge Adventure, Inc.
          1993 Stock Option Plan (and related non-plan options),
          the Papyrus Design Group, Inc. 1992 Stock Option Plan and
          the Entertainment Publications, Inc. 1988 Nonqualified
          Stock Option Plan, complete and correct copies of which
          have been delivered to HFS (such plans, collectively, the
          "CUC Stock Plans"); and (v) 21,705,925 shares of CUC
          Common Stock were reserved for issuance upon conversion
          of the 6-1/2% Convertible Subordinated Notes due 2001 of
          Sierra On-Line, Inc. and the CUC 3% Convertible
          Subordinated Notes due February 15, 2002 (including all
          of the foregoing in this clause (v) and all convertible
          securities listed in Section 3.2(c) of the CUC Disclosure
          Schedule, the "CUC Convertible Securities"). Section
          3.2(c) of the CUC Disclosure Schedule sets forth a
          complete and correct list, as of May 22, 1997, of the
          number of shares of CUC Common Stock subject to employee
          stock options or other rights to purchase or receive CUC
          Common Stock granted under the CUC Stock Plans
          (collectively, "CUC Employee Stock Options"), the dates
          of grant and exercise prices thereof.  All outstanding
          shares of capital stock of CUC are, and all shares which
          may be issued pursuant to this Agreement or otherwise
          will be, when issued, duly authorized, validly issued,
          fully paid and nonassessable and not subject to
          preemptive rights.  Except as set forth in this Section
          3.2(c) and except for changes since May 22, 1997
          resulting from the issuance of shares of CUC Common Stock
          pursuant to the CUC Employee Stock Options, the CUC
          Convertible Securities or as permitted by Section
          4.1(b)(i)(y) and 4.1(b)(ii), (x) there are not issued,
          reserved for issuance or outstanding (A) any shares of
          capital stock or other voting securities of CUC, (B) any
          securities of CUC or any CUC subsidiary convertible into
          or exchangeable or exercisable for shares of capital
          stock or voting securities of CUC, (C) any warrants,
          calls, options or other rights to acquire from CUC or any
          CUC subsidiary, and any obligation of CUC or any CUC
          subsidiary to issue, any capital stock, voting securities
          or securities convertible into or exchangeable or
          exercisable for capital stock or voting securities of
          CUC, and (y) there are no outstanding obligations of CUC
          or any CUC subsidiary to repurchase, redeem or otherwise
          acquire any such securities or to issue, deliver or sell,
          or cause to be issued, delivered or sold, any such
          securities.  There are no outstanding (A) securities of
          CUC or any CUC subsidiary convertible into or
          exchangeable or exercisable for shares of capital stock
          or other voting securities or ownership interests in any
          CUC subsidiary, (B) warrants, calls, options or other
          rights to acquire from CUC or any CUC subsidiary, and any
          obligation of CUC or any CUC subsidiary to issue, any
          capital stock, voting securities or other ownership
          interests in, or any securities convertible into or
          exchangeable or exercisable for any capital stock, voting
          securities or ownership interests in, any CUC subsidiary
          or (C) obligations of CUC or any CUC subsidiary to
          repurchase, redeem or otherwise acquire any such
          outstanding securities of CUC subsidiaries or to issue,
          deliver or sell, or cause to be issued, delivered or
          sold, any such securities.  Neither CUC nor any CUC
          subsidiary is a party to any agreement restricting the
          transfer of, relating to the voting of, requiring
          registration of, or granting any preemptive or, except as
          provided by the terms of the CUC Employee Stock Options
          and the CUC Convertible Securities, antidilutive rights
          with respect to, any securities of the type referred to
          in the two preceding sentences.  Other than the CUC
          subsidiaries, CUC does not directly or indirectly
          beneficially own any securities or other beneficial
          ownership interests in any other entity except for non-
          controlling investments made in the ordinary course of
          business in entities which are not individually or in the
          aggregate material to CUC and its subsidiaries as a
          whole.

                    (d)  Authority; Noncontravention.  CUC has all
          requisite corporate power and authority to enter into
          this Agreement and, subject to the CUC Stockholder
          Approval (as defined in Section 3.2(l)), to consummate
          the transactions contemplated by this Agreement.  The
          execution and delivery of this Agreement by CUC and the
          consummation by CUC of the transactions contemplated by
          this Agreement have been duly authorized by all necessary
          corporate action on the part of CUC, subject, in the case
          of the Merger and the issuance of CUC Common Stock in
          connection with the Merger, to the CUC Stockholder
          Approval.  This Agreement has been duly executed and
          delivered by CUC and, assuming the due authorization,
          execution and delivery by HFS, constitutes the legal,
          valid and binding obligations of CUC, enforceable against
          CUC in accordance with its terms.  The execution and
          delivery of this Agreement do not, and the consummation
          of the transactions contemplated by this Agreement and
          compliance with the provisions of this Agreement will
          not, conflict with, or result in any violation of, or
          default (with or without notice or lapse of time, or
          both) under, or give rise to a right of termination,
          cancellation or acceleration of any obligation or loss of
          a benefit under, or result in the creation of any Lien
          upon any of the properties or assets of CUC or any of its
          subsidiaries under, (i) the certificate of incorporation
          or by-laws of CUC or the comparable organizational
          documents of any of its subsidiaries, (ii) any loan or
          credit agreement, note, bond, mortgage, indenture, lease
          or other agreement, instrument, permit, concession,
          franchise, license or similar authorization applicable to
          CUC or any of its subsidiaries or their respective
          properties or assets or (iii) subject to the governmental
          filings and other matters referred to in the following
          sentence, any judgment, order, decree, statute, law,
          ordinance, rule or regulation applicable to CUC or any of
          its subsidiaries or their respective properties or
          assets, other than, in the case of clauses (ii) and
          (iii), any such conflicts, violations, defaults, rights,
          losses or Liens that individually or in the aggregate
          would not (x) have a material adverse effect on CUC or
          (y) reasonably be expected to impair the ability of CUC
          to perform its obligations under this Agreement.  No
          consent, approval, order or authorization of, action by,
          or in respect of, or registration, declaration or filing
          with, any Governmental Entity is required by or with
          respect to CUC or any of its subsidiaries in connection
          with the execution and delivery of this Agreement by CUC
          or the consummation by CUC of the transactions
          contemplated by this Agreement, except for (1) the filing
          of a pre-merger notification and report form by CUC under
          the HSR Act; (2) the filing with the SEC of (A) the Joint
          Proxy Statement relating to the CUC Stockholders Meeting,
          (B) the Form S-4 and (C) such reports under Section
          13(a), 13(d), 15(d) or 16(a) of the Exchange Act as may
          be required in connection with this Agreement and the
          transactions contemplated by this Agreement; (3) the
          filing of the Certificate of Merger with the Secretary of
          State of Delaware and appropriate documents with the
          relevant authorities of other states in which CUC is
          qualified to do business and such filings with
          Governmental Entities to satisfy the applicable
          requirements of state securities or "blue sky" laws; (4)
          such filings with and approvals of the NYSE to permit the
          shares of CUC Common Stock that are to be issued in the
          Merger and under the HFS Stock Plans to be listed on the
          NYSE; and (5) such consents, approvals, orders or
          authorizations the failure of which to be made or
          obtained individually or in the aggregate would not (x)
          have a material adverse effect on CUC or (y) reasonably
          be expected to impair the ability of CUC to perform its
          obligations under this Agreement.

                    (e)  SEC Documents; Undisclosed Liabilities. 
          CUC has filed all required registration statements,
          prospectuses, reports, schedules, forms, statements and
          other documents (including exhibits and all other
          information incorporated therein) with the SEC since
          December 31, 1994 (the "CUC SEC Documents").  As of their
          respective dates, the CUC SEC Documents complied in all
          material respects with the requirements of the Securities
          Act or the Exchange Act, as the case may be, and the
          rules and regulations of the SEC promulgated thereunder
          applicable to such CUC SEC Documents, and none of the CUC
          SEC Documents when filed contained any untrue statement
          of a material fact or omitted to state a material fact
          required to be stated therein or necessary in order to
          make the statements therein, in light of the
          circumstances under which they were made, not misleading. 
          The financial statements of CUC included in the CUC SEC
          Documents comply as to form, as of their respective dates
          of filing with the SEC, in all material respects with
          applicable accounting requirements and the published
          rules and regulations of the SEC with respect thereto,
          have been prepared in accordance with GAAP (except, in
          the case of unaudited statements, as permitted by Form
          10-Q of the SEC) applied on a consistent basis during the
          periods involved (except as may be indicated in the notes
          thereto) and fairly present the consolidated financial
          position of CUC and its consolidated subsidiaries as of
          the dates thereof and the consolidated results of their
          operations and cash flows for the periods then ended
          (subject, in the case of unaudited statements, to normal
          year-end audit adjustments and except that, in the case
          of financial statements included therein which were later
          restated to account for one or more business combinations
          accounted for as poolings-of-interest, such original
          financial statements do not reflect such restatements). 
          Except (i) as reflected in such financial statements or
          in the notes thereto or (ii) for liabilities incurred in
          connection with this Agreement or the transactions
          contemplated hereby, neither CUC nor any of its
          subsidiaries has any liabilities or obligations of any
          nature which, individually or in the aggregate, would
          have a material adverse effect on CUC.

                    (f)  Information Supplied.  None of the
          information supplied or to be supplied by CUC
          specifically for inclusion or incorporation by reference
          in (i) the Form S-4 will, at the time the Form S-4
          becomes effective under the Securities Act, contain any
          untrue statement of a material fact or omit to state any
          material fact required to be stated therein or necessary
          to make the statements therein not misleading or (ii) the
          Joint Proxy Statement will, at the date it is first
          mailed to CUC's stockholders or at the time of the CUC
          Stockholders Meeting, contain any untrue statement of a
          material fact or omit to state any material fact required
          to be stated therein or necessary in order to make the
          statements therein, in light of the circumstances under
          which they are made, not misleading.  The Form S-4 and
          the Joint Proxy Statement will comply as to form in all
          material respects with the requirements of the Securities
          Act and the Exchange Act and the rules and regulations
          thereunder, except that no representation or warranty is
          made by CUC with respect to statements made or
          incorporated by reference therein based on information
          supplied by HFS specifically for inclusion or
          incorporation by reference in the Form S-4 or the Joint
          Proxy Statement.

                    (g)  Absence of Certain Changes or Events. 
          Except for liabilities incurred in connection with this
          Agreement or the transactions contemplated hereby, and
          except as permitted by Section 4.1(b), since January 31,
          1997, CUC and its subsidiaries have conducted their
          business only in the ordinary course or as disclosed in
          any CUC SEC Document filed since such date and prior to
          the date hereof, and there has not been (i) any material
          adverse change in CUC, (ii) any declaration, setting
          aside or payment of any dividend or other distribution
          (whether in cash, stock or property) with respect to any
          of CUC's capital stock, (iii) any split, combination or
          reclassification of any of CUC's capital stock or any
          issuance or the authorization of any issuance of any
          other securities in respect of, in lieu of or in
          substitution for shares of CUC's capital stock, except
          for issuances of CUC Common Stock upon conversion or
          redemption of CUC Convertible Securities or the exercise
          of CUC Employee Stock Options, in each case, awarded
          prior to the date hereof in accordance with their present
          terms or issued pursuant to Section 4.1(b), (iv)(A) any
          granting by CUC or any of its subsidiaries to any current
          or former director, executive officer or other key
          employee of CUC or its subsidiaries of any increase in
          compensation, bonus or other benefits, except for normal
          increases as a result of promotions, normal increases of
          base pay in the ordinary course of business or as was
          required under any employment agreements in effect as of
          January 31, 1997, (B) any granting by CUC or any of its
          subsidiaries to any such current or former director,
          executive officer or key employee of any increase in
          severance or termination pay, or (C) any entry by CUC or
          any of its subsidiaries into, or any amendment of, any
          employment, deferred compensation consulting, severance,
          termination or indemnification agreement with any such
          current or former director, executive officer or key
          employee, (v) except insofar as may have been disclosed
          in CUC SEC Documents filed and publicly available prior
          to the date of this Agreement (as amended to the date
          hereof, the "CUC Filed SEC Documents") or required by a
          change in GAAP, any change in accounting methods,
          principles or practices by CUC materially affecting its
          assets, liabilities or business, (vi) except insofar as
          may have been disclosed in the CUC Filed SEC Documents,
          any tax election that individually or in the aggregate
          would have a material adverse effect on CUC or any of its
          tax attributes or any settlement or compromise of any
          material income tax liability or (vii) any action taken
          by CUC or any of the CUC subsidiaries during the period
          from January 31, 1997 through the date of this Agreement
          that, if taken during the period from the date of this
          Agreement through the Effective Time would constitute a
          breach of Section 4.1(b).

                    (h)  Compliance with Applicable Laws;
               Litigation.  (i)  CUC, its subsidiaries and
               employees hold all permits, licenses, variances,
               exemptions, orders, registrations and approvals of
               all Governmental Entities which are required for the
               operation of the businesses of CUC and its
               subsidiaries (the "CUC Permits") except where the
               failure to have any such CUC Permits individually or
               in the aggregate would not have a material adverse
               effect on CUC.  CUC and its subsidiaries are in
               compliance with the terms of the CUC Permits and all
               applicable statutes, laws, ordinances, rules and
               regulations, except where the failure so to comply
               individually or in the aggregate would not have a
               material adverse effect on CUC.  As of the date of
               this Agreement, except as disclosed in the CUC Filed
               SEC Documents, no action, demand, requirement or
               investigation by any Governmental Entity and no
               suit, action or proceeding by any person, in each
               case with respect to CUC or any of its subsidiaries
               or any of their respective properties, is pending
               or, to the knowledge of CUC, threatened, other than,
               in each case, those the outcome of which
               individually or in the aggregate would not (A) have
               a material adverse effect on CUC or (B) reasonably
               be expected to impair the ability of CUC to perform
               its obligations under this Agreement or prevent or
               materially delay the consummation of any of the
               transactions contemplated by this Agreement.

                          (ii)  Neither CUC nor any CUC subsidiary
               is subject to any outstanding order, injunction or
               decree which has had or, insofar as can be
               reasonably foreseen, individually or in the
               aggregate will have a material adverse effect on
               CUC.

                    (i)  Absence of Changes in Benefit Plans.  CUC
          has delivered to HFS true and complete copies of (i) all
          severance and employment agreements of CUC with
          directors, executive officers or key employees, (ii) all
          severance programs and policies of each of CUC and each
          CUC subsidiary, and (iii) all plans or arrangements of
          CUC and each CUC subsidiary relating to its employees
          which contain change in control provisions.  Since
          January 31, 1997, there has not been any adoption or
          amendment in any material respect by CUC or any of its
          subsidiaries of any collective bargaining agreement or
          any material bonus, pension, profit sharing, deferred
          compensation, incentive compensation, stock ownership,
          stock purchase, stock option, phantom stock, retirement,
          vacation, severance, disability, death benefit,
          hospitalization, medical or other plan, arrangement or
          understanding providing benefits to any current or former
          employee, officer or director of CUC or any of its wholly
          owned subsidiaries (collectively, the "CUC Benefit
          Plans"), or any material change in any actuarial or other
          assumption used to calculate funding obligations with
          respect to any CUC pension plans, or any material change
          in the manner in which contributions to any CUC pension
          plans are made or the basis on which such contributions
          are determined.  Since January 1, 1996, none of CUC nor
          any CUC subsidiary has amended any CUC Employee Stock
          Options or any CUC Stock Plans to accelerate the vesting
          of, or release restrictions on, awards thereunder, or to
          provide for such acceleration in the event of a change in
          control.

                    (j)  ERISA Compliance.  (i)  With respect to
               the CUC Benefit Plans, no event has occurred and, to
               the knowledge of CUC, there exists no condition or
               set of circumstances, in connection with which CUC
               or any of its subsidiaries could be subject to any
               liability that individually or in the aggregate
               would have a material adverse affect on CUC under
               ERISA, the Code or any other applicable law.

                          (ii)  Each CUC Benefit Plan has been
               administered in accordance with its terms, except
               for any failures so to administer any CUC Benefit
               Plan that individually or in the aggregate would not
               have a material adverse effect on CUC.  CUC, its
               subsidiaries and all the CUC Benefit Plans have been
               operated, and are, in compliance with the applicable
               provisions of ERISA, the Code and all other
               applicable laws and the terms of all applicable
               collective bargaining agreements, except for any
               failures to be in such compliance that individually
               or in the aggregate would not have a material
               adverse effect on CUC.  Each CUC Benefit Plan that
               is intended to be qualified under Section 401(a) or
               401(k) of the Code has received a favorable
               determination letter from the IRS that it is so
               qualified and each trust established in connection
               with any CUC Benefit Plan that is intended to be
               exempt from federal income taxation under Section
               501(a) of the Code has received a determination
               letter from the IRS that such trust is so exempt. 
               To the knowledge of CUC, no fact or event has
               occurred since the date of any determination letter
               from the IRS which is reasonably likely to affect
               adversely the qualified status of any such CUC
               Benefit Plan or the exempt status of any such trust.

                          (iii)  Neither CUC nor any of its
               subsidiaries has incurred any unsatisfied liability
               under Title IV of ERISA (other than liability for
               premiums to the Pension Benefit Guaranty Corporation
               arising in the ordinary course).  No CUC Benefit
               Plan has incurred an "accumulated funding
               deficiency" (within the meaning of Section 302 of
               ERISA or Section 412 of the Code) whether or not
               waived.  To the knowledge of CUC, there are not any
               facts or circumstances that would materially change
               the funded status of any CUC Benefit Plan that is a
               "defined benefit" plan (as defined in Section 3(35)
               of ERISA) since the date of the most recent
               actuarial report for such plan.  No CUC Benefit Plan
               is a "multiemployer plan" within the meaning of
               Section 3(37) of ERISA.

                          (iv)  No CUC Benefit Plan is subject to
               Title IV of ERISA.

                          (v)  No CUC Benefit Plan provides
               medical benefits (whether or not insured), with
               respect to current or former employees after
               retirement or other termination of service (other
               than coverage mandated by applicable law
               or benefits, the full cost of which is borne by the
               current or former employee) other than individual
               arrangements the amounts of which are not material.

                          (vi)  As of the date of this Agreement,
               neither CUC nor any of its subsidiaries is a party
               to any collective bargaining or other labor union
               contract applicable to persons employed by CUC or
               any of its subsidiaries and no collective bargaining
               agreement is being negotiated by CUC or any of its
               subsidiaries.  As of the date of this Agreement,
               there is no labor dispute, strike or work stoppage
               against CUC or any of its subsidiaries pending or,
               to the knowledge of CUC, threatened which may
               interfere with the respective business activities of
               CUC or any of its subsidiaries, except where such
               dispute, strike or work stoppage individually or in
               the aggregate would not have a material adverse
               effect on CUC.  As of the date of this Agreement, to
               the knowledge of CUC, none of CUC, any of its
               subsidiaries or any of their respective
               representatives or employees has committed any
               material unfair labor practice in connection with
               the operation of the respective businesses of CUC or
               any of its subsidiaries, and there is no material
               charge or complaint against CUC or any of its
               subsidiaries by the National Labor Relations Board
               or any comparable governmental agency pending or
               threatened in writing.

                          (vii)  No employee of CUC will be
               entitled to any material payment, additional
               benefits or any acceleration of the time of payment
               or vesting of any benefits under any CUC Benefit
               Plan as a result of the transactions contemplated by
               this Agreement (either alone or in conjunction with
               any other event such as a termination of
               employment), except that CUC Employee Stock Options
               and shares of restricted stock under the 1992 Bonus
               and Salary Replacement Stock Option Plan, the 1989
               Restricted Stock Plan, the 1994 Directors Stock
               Option Plan, the Sierra 1995 Stock Option Plan, the
               Papyrus Design Group, Inc. 1992 Stock Option Plan
               and the Knowledge Adventure, Inc. 1993 Stock Option
               Plan will vest as of the Effective Time as a result
               of the Merger.

                          (k)  Taxes.  (i)  Each of CUC and its
               subsidiaries has filed all material tax returns and
               reports required to be filed by it and all such
               returns and reports are complete and correct in all
               material respects, or requests for extensions to
               file such returns or reports have been timely filed,
               granted and have not expired, except to the extent
               that such failures to file, to be complete or
               correct or to have extensions granted that remain in
               effect individually or in the aggregate would not
               have a material adverse effect on CUC.  CUC and each
               of its subsidiaries has paid (or CUC has paid on its
               behalf) all taxes shown as due on such returns, and
               the most recent financial statements contained in
               the CUC Filed SEC Documents reflect an adequate
               reserve in accordance with GAAP for all taxes
               payable by CUC and its subsidiaries for all taxable
               periods and portions thereof accrued through the
               date of such financial statements.

                          (ii)  No deficiencies for any taxes have
               been proposed, asserted or assessed against CUC or
               any of its subsidiaries that are not adequately
               reserved for, except for deficiencies that
               individually or in the aggregate would not have a
               material adverse effect on CUC.  The federal income
               tax returns of CUC and each of its subsidiaries
               consolidated in such returns for tax years through
               1989 have closed by virtue of the applicable statute
               of limitations.

                          (iii)  Neither CUC nor any of its
               subsidiaries has taken any action or knows of any
               fact, agreement, plan or other circumstance that is
               reasonably likely to prevent the Merger from
               qualifying as a reorganization within the meaning of
               Section 368(a) of the Code.

                    (l)  Voting Requirements.  The affirmative vote
          at the CUC Stockholders Meeting (the "CUC Stockholder
          Approval") of (i) the holders of a majority of all
          outstanding shares of CUC Common Stock is the only vote
          of the holders of any class or series of CUC's capital
          stock necessary to approve and adopt this Agreement and
          the transactions contemplated hereby, including the
          Merger, the issuance of the CUC Common Stock pursuant to
          the Merger and the Certificate Amendment, and (ii) the
          holders of a majority of all shares of CUC Common Stock
          casting votes is the only vote of the holders of any
          class or series of CUC's capital stock necessary to
          approve (A) in accordance with the applicable rules of
          the NYSE, the,issuance of CUC Common Stock pursuant to
          the Merger, and (B) the New CUC Stock Plan.

                    (m)  State Takeover Statutes; Certificate of
          Incorporation.  The Board of Directors of CUC (including
          the Disinterested Directors thereof (as defined in
          Article 10 of CUC's Certificate of Incorporation)) has
          unanimously approved this Agreement, the transactions
               contemplated hereby, the assumption of the Adjusted
               Options, the issuance of the options to purchase shares
               of CUC Common Stock granted pursuant to Section 5.17 and
               the issuance of the shares of CUC Common Stock upon
               exercise of such Adjusted Options and other options and,
               assuming the accuracy of HFS's representation and
               warranty contained in Section 3.1(q), such approval
               constitutes approval of the Merger and the other
               transactions contemplated hereby by the CUC Board of
               Directors under the provisions of Section 203 of the DGCL
               and constitutes approval of the Merger, the other
               transactions contemplated hereby, the assumption of the
               Adjusted Options, the issuance of the options to purchase
               shares of CUC Common Stock granted pursuant to Section
               5.17 and the issuance of the shares of CUC Common Stock
               upon exercise of the Adjusted Options and other options
               under the provisions of CUC's Certificate of
               Incorporation such that Section 203 and the provision of
               Section 10 of CUC's Certificate of Incorporation do not
               apply to this Agreement, the transactions contemplated
               hereby, the assumption of the Adjusted Options, the
               issuance of the options to purchase shares of CUC Common
               Stock granted pursuant to Section 5.17 and the issuance
               of the shares of CUC Common Stock upon exercise of the
               Adjusted Options and other options.  To the knowledge of
               CUC, no state takeover statute other than Section 203 of
               the DGCL (which has been rendered inapplicable) is
               applicable to the Merger or the other transactions
               contemplated hereby.

                         (n)  Accounting Matters.  To its knowledge,
               neither CUC nor any of its affiliates (as such term is
               used in Section 5.11) has taken or agreed to take any
               action that would prevent the business combination to be
               effected by the Merger from being accounted for as a
               pooling of interests and CUC has no reason to believe
               that the Merger will not qualify for "pooling of
               interest" accounting.

                         (o)  Brokers.  No broker, investment banker,
               financial advisor or other person, other than Goldman,
               Sachs & Co. ("Goldman Sachs"), the fees and expenses of
               which will be paid by CUC, is entitled to any broker's,
               finder's, financial advisor's or other similar fee or
               commission in connection with the transactions
               contemplated by this Agreement based upon arrangements
               made by or on behalf of CUC.  CUC has furnished to HFS
               true and complete copies of all agreements under which
               any such fees or expenses are payable and all
               indemnification and other agreements related to the
               engagement of the persons to whom such fees are payable.

                         (p)  Opinion of Financial Advisor.  CUC has
               received the opinion of Goldman Sachs, dated the date of
               this Agreement, to the effect that, as of such date, the
               Exchange Ratio for the conversion of HFS Common Stock
               into CUC Common Stock is fair to CUC, a signed copy of
               which opinion has been delivered to HFS, it being
               understood and agreed by HFS that such opinion is for the
               benefit of the Board of Directors of CUC and may not be
               relied upon by HFS, its affiliates or any of their
               respective stockholders.

                         (q)  Ownership of HFS Common Stock.  As of the
               date hereof, neither CUC nor, to its knowledge without
               independent investigation, any of its affiliates, (i)
               beneficially owns (as defined in Rule 13d-3 under the
               Exchange Act), directly or indirectly, or (ii) is party
               to any agreement, arrangement or understanding for the
               purpose of acquiring, holding, voting or disposing of, in
               each case, shares of capital stock of HFS.

                         (r)  Intellectual Property.  CUC and its
               subsidiaries own or have a valid license to use all
               trademarks, service marks, trade names, patents and
               copyrights (including any registrations or applications
               for registration of any of the foregoing) (collectively,
               the "CUC Intellectual Property") necessary to carry on
               its business substantially as currently conducted, except
               for such CUC Intellectual Property the failure of which
               to own or validly license individually or in the
               aggregate would not have a material adverse effect on
               CUC.  Neither CUC nor any such subsidiary has received
               any notice of infringement of or conflict with, and, to
               CUC's knowledge, there are no infringements of or
               conflicts (i) with the rights of others with respect to
               the use of, or (ii) by others with respect to, any CUC
               Intellectual Property that individually or in the
               aggregate, in either such case, would have a material
               adverse effect on CUC.

                         (s)  Certain Contracts.  Except as set forth in
               the CUC Filed SEC Documents, neither CUC nor any of its
               subsidiaries is a party to or bound by (i) any "material
               contract" (as such term is defined in item 601(b)(10) of
               Regulation S-K of the SEC), (ii) any non-competition
               agreement or any other agreement or obligation which
               purports to limit in any material respect the manner in
               which, or the localities in which, all or any material
               portion of the business of CUC and its subsidiaries
               (including HFS and its subsidiaries, assuming the Merger
               had taken place), taken as a whole, is or would be
               conducted, or (iii) any contract or other agreement which
               would prohibit or materially delay the consummation of
               the Merger or any of the transactions contemplated by
               this Agreement (all contracts of the type described in
               clauses (i) and (ii) being referred to herein as "CUC
               Material Contracts").  Each CUC Material Contract is
               valid and binding on CUC (or, to the extent a CUC
               subsidiary is a party, such subsidiary) and is in full
               force and effect, and CUC and each CUC subsidiary have in
               all material respects performed all obligations required
               to be performed by them to date under each CUC Material
               Contract, except where such noncompliance, individually
               or in the aggregate, would not have a material adverse
               effect on CUC.  Neither CUC nor any CUC subsidiary knows
               of, or has received notice of, any violation or default
               under (nor, to the knowledge of CUC, does there exist any
               condition which with the passage of time or the giving of
               notice or both would result in such a violation or
               default under) any CUC Material Contract.

                                       ARTICLE IV

                       COVENANTS RELATING TO CONDUCT OF BUSINESS

                         SECTION 4.1.  Conduct of Business.  (a) 
               Conduct of Business by HFS.  Except as set forth in
               Section 4.1(a) of the HFS Disclosure Schedule, as
               otherwise expressly contemplated by this Agreement or as
               consented to by CUC in writing, such consent not to be
               unreasonably withheld or delayed, during the period from
               the date of this Agreement to the Effective Time, HFS
               shall, and shall cause its subsidiaries to, carry on
               their respective businesses in the ordinary course
               consistent with past practice and in compliance in all
               material respects with all applicable laws and
               regulations and, to the extent consistent therewith, use
               all reasonable efforts to preserve intact their current
               business organizations, use reasonable efforts to keep
               available the services of their current officers and
               other key employees and preserve their relationships with
               those persons having business dealings with them to the
               end that their goodwill and ongoing businesses shall be
               unimpaired at the Effective Time.  Without limiting the
               generality of the foregoing (but subject to the above
               exceptions), during the period from the date of this
               Agreement to the Effective Time, HFS shall not, and shall
               not permit any of its subsidiaries to:

                               (i)  other than dividends and
                    distributions by a direct or indirect wholly owned
                    subsidiary of HFS to its parent, or by a subsidiary
                    that is partially owned by HFS or any of its
                    subsidiaries, provided that HFS or any such
                    subsidiary receives or is to receive its
                    proportionate share thereof, (x) declare, set aside
                    or pay any dividends on, make any other
                    distributions in respect of, or enter into any
                    agreement with respect to the voting of, any of its
                    capital stock, (y) split, combine or reclassify any
                    of its capital stock or issue or authorize the
                    issuance of any other securities in respect of, in
                    lieu of or in substitution for shares of its capital
                    stock, except for issuances of HFS Common Stock upon
                    conversion of HFS Convertible Securities or upon the
                    exercise of HFS Employee Stock Options, in each
                    case, outstanding as of the date hereof in
                    accordance with their present terms, including
                    cashless exercise, or issued pursuant to Section
                    4.1(a)(ii) or (z) purchase, redeem or otherwise
                    acquire any shares of capital stock of HFS or any of
                    its subsidiaries or any other securities thereof or
                    any rights, warrants or options to acquire any such
                    shares or other securities (except, in the case of
                    clause (z), for (A) the repurchase of up to 30,000
                    shares of HFS Common Stock as long as such
                    repurchases are made after consultation with CUC and
                    in compliance with Section 5.15 and (B) the deemed
                    acceptance of shares upon cashless exercise of HFS
                    Employee Stock Options, or in connection with
                    withholding obligations relating thereto);

                               (ii)  issue, deliver, sell, pledge or
                    otherwise encumber or subject to any Lien any shares
                    of its capital stock, any other voting securities or
                    any securities convertible into, or any rights,
                    warrants or options to acquire, any such shares,
                    voting securities or convertible securities (other
                    than (x) the issuance of HFS capital stock or
                    warrants to purchase HFS capital stock in connection
                    with any acquisition permitted by Section 4.1(a)(iv)
                    and in compliance with Section 5.15, (y) the
                    issuance of HFS Common Stock upon conversion of HFS
                    Convertible Securities in accordance with their
                    present terms at the option of the holders thereof,
                    and (z) the issuance of HFS Common Stock upon the
                    exercise of HFS Employee Stock Options, in each
                    case, outstanding as of the date hereof in
                    accordance with their present terms or the issuance
                    of HFS Employee Stock Options (and shares of HFS
                    Common Stock upon the exercise thereof) granted
                    after the date hereof in the ordinary course of
                    business consistent with past practice (1) for new
                    employees (so long as such additional amount of HFS
                    Common Stock subject to HFS Employee Stock Options
                    issued to new employees does not exceed 416,130
                    shares of HFS Common Stock in the aggregate) or (2)
                    in connection with employee promotions;

                               (iii)  amend its certificate of
                    incorporation, by-laws or other comparable
                    organizational documents;

                               (iv)  acquire or agree to acquire by
                    merging or consolidating with, or by purchasing a
                    substantial portion of the assets of, or by any
                    other manner, any business or any person, except for
                    acquisitions within the scope of or related to HFS's
                    or CUC's existing businesses in which the aggregate
                    consideration is less than $1.5 billion in any
                    single acquisition or series of related acquisitions
                    and less than $2.0 billion in the aggregate for all
                    such acquisitions, in each case which would not
                    materially delay or impair the ability of HFS to
                    perform its obligations under this Agreement and
                    which is reasonably expected to be accretive to
                    HFS's earnings within 12 months following
                    consummation (for purposes of this Section
                    4.1(a)(iv), "aggregate consideration" shall equal
                    the sum of (A)(1) the amount of cash paid, and (2)
                    the value of any shares of HFS Common Stock (valued
                    at the closing price of the HFS Common Stock on the
                    NYSE on the day prior to announcement of such
                    acquisition) delivered, and (3) the fair market
                    value of any non-cash or non-HFS Common Stock
                    consideration (as determined by the HFS Board of
                    Directors in good faith as of the day prior to
                    announcement of such acquisition) delivered to the
                    seller or its security holders in connection with
                    such acquisition, and (B) the amount of liabilities
                    directly or indirectly assumed by HFS or its
                    subsidiaries or retired or defeased in connection
                    with such acquisition, including contingent
                    liabilities to the extent they can be estimated by
                    the HFS Board of Directors in good faith as of the
                    day prior to the announcement of such acquisition);

                               (v)  subject to compliance with Section
                    5.15, sell, lease, license, mortgage or otherwise
                    encumber or subject to any Lien or otherwise dispose
                    of any of its properties or assets (including
                    securitizations), other than (A) in the ordinary
                    course of business consistent with past practice or
                    (B) up to $50 million of such assets, in the
                    aggregate;

                               (vi)  take any action that would cause
                    the representations and warranties set forth in
                    Section 3.1(g) (with each reference therein to
                    "ordinary course of business" being deemed for
                    purposes of this Section 4.1(a)(vi) to be
                    immediately followed by "consistent with past
                    practice") to no longer be true and correct;

                               (vii)  incur any indebtedness for
                    borrowed money or issue any debt securities or
                    assume, guarantee or endorse, or otherwise as an
                    accommodation become responsible for the obligations
                    of any person for borrowed money, except for
                    indebtedness which does not cause a change in the
                    ratings of HFS's rated debt securities by Standard &
                    Poor's Ratings Services and by Moody's Investor
                    Service, Inc. from those in effect as of the date
                    hereof; or

                               (viii)  authorize, or commit or agree to
                    take, any of the foregoing actions;

               provided that the limitations set forth in this Section
               4.1(a) (other than clause (iii)) shall not apply to any
               transaction between HFS and any wholly owned subsidiary
               or between any wholly owned subsidiaries of HFS.

                         (b)  Conduct of Business by CUC.  Except as set
               forth in Section 4.1(b) of the CUC Disclosure Schedule,
               as otherwise expressly contemplated by this Agreement or
               as consented to by HFS in writing, such consent not to be
               unreasonably withheld or delayed, during the period from
               the date of this Agreement to the Effective Time, CUC
               shall, and shall cause its subsidiaries to, carry on
               their respective businesses in the ordinary course
               consistent with past practice and in compliance in all
               material respects with all applicable laws and
               regulations and, to the extent consistent therewith, use
               all reasonable efforts to preserve intact their current
               business organizations, use reasonable efforts to keep
               available the services of their current officers and
               other key employees and preserve their relationships with
               those persons having business dealings with them to the
               end that their goodwill and ongoing businesses shall be
               unimpaired at the Effective Time.  Without limiting the
               generality of the foregoing (but subject to the above
               exceptions), during the period from the date of this
               Agreement to the Effective Time, CUC shall not, and shall
               not permit any of its subsidiaries to:

                               (i)  other than dividends and
                    distributions by a direct or indirect wholly owned
                    subsidiary of CUC to its parent, or by a subsidiary
                    that is partially owned by CUC or any of its
                    subsidiaries, provided that CUC or any such
                    subsidiary receives or is to receive its
                    proportionate share thereof, (x) declare, set aside
                    or pay any dividends on, make any other
                    distributions in respect of, or enter into any
                    agreement with respect to the voting of, any of its
                    capital stock, (y) split, combine or reclassify any
                    of its capital stock or issue or authorize the
                    issuance of any other securities in respect of, in
                    lieu of or in substitution for shares of its capital
                    stock, except for issuances of CUC Common Stock upon
                    conversion or redemption of CUC Convertible
                    Securities or upon the exercise of CUC Employee
                    Stock Options, in each case, outstanding as of the
                    date hereof in accordance with their present terms,
                    including cashless exercise, or issued pursuant to
                    Section 4.1(b)(ii) or (z) purchase, redeem or
                    otherwise acquire any shares of capital stock of CUC
                    or any of its subsidiaries or any other securities
                    thereof or any rights, warrants or options to
                    acquire any such shares or other securities (except,
                    in the case of clause (z), for (A) the repurchase of
                    up to 30,000 shares of CUC Common Stock as long as
                    such repurchases are made after consultation with
                    HFS and in compliance with Section 5.15 and (B) the
                    deemed acceptance of shares upon cashless exercise
                    of CUC Employee Stock Options, or in connection with
                    withholding obligations relating thereto);

                               (ii)  issue, deliver, sell, pledge or
                    otherwise encumber or subject to any Lien any shares
                    of its capital stock, any other voting securities or
                    any securities convertible into, or any rights,
                    warrants or options to acquire, any such shares,
                    voting securities or convertible securities (other
                    than (x) the issuance of CUC capital stock or
                    warrants to acquire CUC capital stock in connection
                    with any acquisition permitted by Section 4.1(b)(iv)
                    and in compliance with Section 5.15, (y) the
                    issuance of CUC Common Stock upon conversion or
                    redemption of CUC Convertible Securities in
                    accordance with their present terms at the option of
                    the holders thereof, and (z) the issuance of CUC
                    Common Stock upon the exercise of CUC Employee Stock
                    Options, in each case, outstanding as of the date
                    hereof in accordance with their present terms or the
                    issuance of CUC Employee Stock Options (and shares
                    of CUC Common Stock upon the exercise thereof)
                    granted after the date hereof in the ordinary course
                    of business consistent with past practice (1) for
                    new employees (so long as such additional amount of
                    CUC Common Stock subject to CUC Employee Stock
                    Options issued to new employees does not exceed
                    1,000,000 shares of CUC Common Stock in the
                    aggregate) or (2) in connection with employee
                    promotions;

                               (iii)  except as contemplated hereby,
                    amend its certificate of incorporation, by-laws or
                    other comparable organizational documents;

                               (iv)  acquire or agree to acquire by
                    merging or consolidating with, or by purchasing a
                    substantial portion of the assets of, or by any
                    other manner, any business or any person, except for
                    acquisitions within the scope of or related to CUC's
                    or HFS's existing businesses in which the aggregate
                    consideration is less than $1.5 billion in any
                    single acquisition or series of related acquisitions
                    and less than $2.0 billion in the aggregate for all
                    such acquisitions, in each case which would not
                    materially delay or impair the ability of CUC to
                    perform its obligations under this Agreement and
                    which is reasonably expected to be accretive to
                    CUC's earnings within 12 months following
                    consummation (for purposes of this Section
                    4.1(b)(iv), "aggregate consideration" shall equal
                    the sum of (A)(1) the amount of cash paid, and (2)
                    the value of any shares of CUC Common Stock (valued
                    at the closing price of the CUC Common Stock on the
                    NYSE on the day prior to announcement of such
                    acquisition) delivered, and (3) the fair market
                    value of any non-cash or non-CUC Common Stock
                    consideration (as determined by the CUC Board of
                    Directors in good faith as of the day prior to
                    announcement of such acquisition) delivered to the
                    seller or its security holders in connection with
                    such acquisition, and (B) the amount of liabilities
                    directly or indirectly assumed by CUC or its
                    subsidiaries or retired or defeased in connection
                    with such acquisition, including contingent
                    liabilities to the extent they can be estimated by
                    the CUC Board of Directors in good faith as of the
                    day prior to the announcement of such acquisition);

                               (v)  subject to compliance with Section
                    5.15, sell, lease, license, mortgage or otherwise
                    encumber or subject to any Lien or otherwise dispose
                    of any of its properties or assets (including
                    securitizations), other than (A) in the ordinary
                    course of business consistent with past practice (B)
                    up to $50 million of such assets, in the aggregate;

                               (vi)  take any action that would cause
                    the representations and warranties set forth in
                    Section 3.2(g) (with each reference therein to
                    ordinary course of business, being deemed for
                    purposes of this Section 4.1(b)(vi) to be
                    immediately followed by "consistent with past
                    practice") to no longer be true and correct;

                               (vii)  incur any indebtedness for
                    borrowed money or issue any debt securities or
                    assume, guarantee or endorse, or otherwise as an
                    accommodation become responsible for the obligations
                    of any person for borrowed money, except for
                    indebtedness which does not cause a change in the
                    ratings of CUC's rated debt securities by Standard &
                    Poor's Ratings Services and by Moody's Investor
                    Service, Inc. from those in effect as of the date
                    hereof; or

                               (viii)  authorize, or commit or agree to
                    take, any of the foregoing actions;

               provided that the limitations set forth in this Section
               4.1(b) (other than clause (iii)) shall not apply to any
               transaction between CUC and any wholly owned subsidiary
               or between any wholly owned subsidiaries of CUC.

                         (c)  Other Actions.  Except as required by law,
               HFS and CUC shall not, and shall not permit any of their
               respective subsidiaries to, voluntarily take any action
               that would, or that could reasonably be expected to,
               result in (i) any of the representations and warranties
               of such party set forth in this Agreement that are
               qualified as to materiality becoming untrue at the
               Effective Time, except as provided in the proviso in
               Section 6.2(a) or Section 6.3(a), (ii) any of such
               representations and warranties that are not so qualified
               becoming untrue in any material respect at the Effective
               Time, except as provided in the proviso in Section 6.2(a)
               or Section 6.3(a), or (iii) any of the conditions to the
               Merger set forth in Article VI not being satisfied.

                         (d)  Advice of Changes.  HFS and CUC shall
               promptly advise the other party orally and in writing to
               the extent it has knowledge of (i) any representation or
               warranty made by it contained in this Agreement that is
               qualified as to materiality becoming untrue or inaccurate
               in any respect or any such representation or warranty
               that is not so qualified becoming untrue or inaccurate in
               any material respect, (ii) the failure by it to comply in
               any material respect with or satisfy in any material
               respect any covenant, condition or agreement to be
               complied with or satisfied by it under this Agreement and
               (iii) any change or event having, or which, insofar as
               can reasonably be foreseen, could reasonably be expected
               to have a material adverse effect on such party or on the
               truth of their respective representations and warranties
               or the ability of the conditions set forth in Article VI
               to be satisfied; provided, however, that no such
               notification shall affect the representations,
               warranties, covenants or agreements of the parties (or
               remedies with respect thereto) or the conditions to the
               obligations of the parties under this Agreement.

                         SECTION 4.2.  No Solicitation by HFS.  (a)  HFS
               shall not, nor shall it permit any of its subsidiaries
               to, nor shall it authorize or permit any of its
               directors, officers or employees or any investment
               banker, financial advisor, attorney, accountant or other
               representative retained by it or any of its subsidiaries
               to, directly or indirectly through another person, (i)
               solicit, initiate or encourage (including by way of
               furnishing information), or take any other action
               designed to facilitate, any inquiries or the making of
               any proposal which constitutes any HFS Takeover Proposal
               (as defined below) or (ii) participate in any discussions
               or negotiations regarding any HFS Takeover Proposal;
               provided, however, that if the Board of Directors of HFS
               determines in good faith, based on the advice of outside
               counsel, that it is necessary to do so in order to act in
               a manner consistent with its fiduciary duties to HFS's
               stockholders under applicable law, HFS may, in response
               to an HFS Superior Proposal (as defined in Section
               4.2(b)) which was not solicited by it, which did not
               otherwise result from a breach of this Section 4.2(a) and
               which is made or received prior to the obtaining of the
               HFS Stockholder Approval, and subject to providing prior
               written notice of its decision to take such action to CUC
               and compliance with Section 4.2(c), (x) furnish
               information with respect to HFS and its subsidiaries to
               any person making an HFS Superior Proposal pursuant to a
               customary confidentiality agreement (as determined by HFS
               based on the advice of its outside counsel, the terms of
               which are no more favorable to such person than the
               Confidentiality Agreement (as defined herein)) and (y)
               participate in discussions or negotiations regarding such
               HFS Superior Proposal.  For purposes of this Agreement,
               "HFS Takeover Proposal" means any inquiry, proposal or
               offer from any person relating to any direct or indirect
               acquisition or purchase of a business that constitutes
               50% or more of the net revenues, net income or the assets
               of HFS and its subsidiaries, taken as a whole, or 25% or
               more of any class of equity securities of HFS, any tender
               offer or exchange offer that if consummated would result
               in any person beneficially owning 25% or more of any
               class of equity securities of HFS, or any merger,
               consolidation, business combination, recapitalization,
               liquidation, dissolution or similar transaction involving
               HFS or the HFS Common Stock (or any HFS subsidiary whose
               business constitutes 50% or more of the net revenues, net
               income or the assets of HFS and its subsidiaries, taken
               as whole), other than the transactions contemplated by
               this Agreement.

                         (b)  Except as expressly permitted by this
               Section 4.2, neither the Board of Directors of HFS nor
               any committee thereof shall (i) withdraw or modify, or
               propose publicly to withdraw or modify, in a manner
               adverse to CUC, the approval or recommendation by such
               Board of Directors or such committee of the Merger or
               this Agreement, (ii) approve or recommend, or propose
               publicly to approve or recommend, any HFS Takeover
               Proposal, or (iii) cause HFS to enter into any letter of
               intent, agreement in principle, acquisition agreement or
               other similar agreement (each, an "HFS Acquisition
               Agreement") related to any HFS Takeover Proposal. 
               Notwithstanding the foregoing,  at any time prior to the
               obtaining of the HFS Stockholder Approval, the Board of
               Directors of HFS, to the extent that it determines in
               good faith, based upon the advice of outside counsel,
               that it is necessary to do so in order to act in a manner
               consistent with its fiduciary duties to HFS's
               stockholders under applicable law, may (subject to this
               and the following sentences) terminate this Agreement
               solely in order to concurrently enter into an HFS
               Acquisition Agreement with respect to any HFS Superior
               Proposal, but only at a time that is after the fifth
               business day following CUC's receipt of written notice
               advising CUC that the Board of Directors of HFS is
               prepared to accept an HFS Superior Proposal, specifying
               the material terms and conditions of such HFS Superior
               Proposal and identifying the person making such HFS
               Superior Proposal.  For purposes of this Agreement, an
               "HFS Superior Proposal" means any proposal made by a
               third party to acquire, directly or indirectly, including
               pursuant to a tender offer, exchange offer, merger,
               consolidation, business combination, recapitalization,
               liquidation, dissolution or similar transaction, for
               consideration consisting of cash and/or securities, more
               than 50% of the combined voting power of the shares of
               HFS Common Stock then outstanding or all or substantially
               all the assets of HFS and otherwise on terms which the
               Board of Directors of HFS determines in its good faith
               judgment (based on the advice of a financial advisor of
               nationally recognized reputation) to be more favorable to
               HFS's stockholders than the Merger and for which
               financing, to the extent required, is then committed or
               which, in the good faith judgment of the Board of
               Directors of HFS based on the advice of its financial
               advisor, is reasonably capable of being obtained by such
               third party.

                         (c)  In addition to the obligations of HFS set
               forth in paragraphs (a) and (b) of this Section 4.2, HFS
               shall immediately advise CUC orally and in writing of any
               request for information or of any HFS Takeover Proposal,
               the material terms and conditions of such request or HFS
               Takeover Proposal and the identity of the person making
               such request or HFS Takeover Proposal.  HFS will keep CUC
               reasonably informed of the status and details (including
               amendments or proposed amendments) of any such request or
               HFS Takeover Proposal.

                         (d)  Nothing contained in this Section 4.2
               shall prohibit HFS from taking and disclosing to its
               stockholders a position contemplated by Rule 14e-2(a)
               promulgated under the Exchange Act or from making any
               disclosure to HFS's stockholders if, in the good faith
               judgment of the Board of Directors of HFS, after
               consultation with outside counsel, failure so to disclose
               would be inconsistent with its obligations under
               applicable law; provided, however, that neither HFS nor
               its Board of Directors nor any committee thereof shall
               withdraw or modify, or propose publicly to withdraw or
               modify, its position with respect to this Agreement or
               the Merger or approve or recommend, or propose publicly
               to approve or recommend, an HFS Takeover Proposal.

                         SECTION 4.3.  No Solicitation by CUC.  (a)  CUC
               shall not, nor shall it permit any of its subsidiaries
               to, nor shall it authorize or permit any of its
               directors, officers or employees or any investment
               banker, financial advisor, attorney, accountant or other
               representative retained by it or any of its subsidiaries
               to, directly or indirectly through another person, (i)
               solicit, initiate or encourage (including by way of
               furnishing information), or take any other action
               designed to facilitate, any inquiries or the making of
               any proposal which constitutes any CUC Takeover Proposal
               (as defined below) or (ii) participate in any discussions
               or negotiations regarding any CUC Takeover Proposal;
               provided, however, that if the Board of Directors of CUC
               determines in good faith, based on the advice of outside
               counsel, that it is necessary to do so in order to act in
               a manner consistent with its fiduciary duties to CUC's
               stockholders under applicable law, CUC may, in response
               to a CUC Superior Proposal (as defined in Section 4.3(b))
               which was not solicited by it, which did not otherwise
               result from a breach of this Section 4.3(a) and which is
               made or received prior to the obtaining of the CUC
               Stockholder Approval, and subject to providing prior
               written notice of its decision to take such action to HFS
               and compliance with Section 4.3(c) (x) furnish
               information with respect to CUC and its subsidiaries to
               any person making a CUC Superior Proposal pursuant to a
               customary confidentiality agreement (as determined by CUC
               based on the advice of its outside counsel, the terms of
               which are no more favorable to such person than the
               Confidentiality Agreement) and (y) participate in
               discussions or negotiations regarding such CUC Superior
               Proposal.  For purposes of this Agreement, "CUC Takeover
               Proposal" means any inquiry, proposal or offer from any
               person relating to any direct or indirect acquisition or
               purchase of a business that constitutes 50% or more of
               the net revenues, net income or the assets of CUC and its
               subsidiaries, taken as a whole, or 25% or more of any
               class of equity securities of CUC, any tender offer or
               exchange offer that if consummated would result in any
               person beneficially owning 25% or more of any class of
               equity securities of CUC, or any merger, consolidation,
               business combination, recapitalization, liquidation,
               dissolution or similar transaction involving CUC or the
               CUC Common Stock (or any CUC subsidiary whose business
               constitutes 50% or more of the net revenues, net income
               or the assets of CUC and its subsidiaries, taken as a
               whole), other than the transactions contemplated by this
               Agreement.

                         (b)  Except as expressly permitted by this
               Section 4.3, neither the Board of Directors of CUC nor
               any committee thereof shall (i) withdraw or modify, or
               propose publicly to withdraw or modify, in a manner
               adverse to HFS, the approval or recommendation by such
               Board of Directors or such committee of the Merger, this
               Agreement or the issuance of CUC Common Stock in
               connection with the Merger, (ii) approve or recommend, or
               propose publicly to approve or recommend, any CUC
               Takeover Proposal, or (iii) cause CUC to enter into any
               letter of intent, agreement in principle, acquisition
               agreement or other similar agreement (each, a "CUC
               Acquisition Agreement") related to any CUC Takeover
               Proposal.  Notwithstanding the foregoing, at any time
               prior to the obtaining of the CUC Stockholder Approval,
               the Board of Directors of CUC, to the extent that it
               determines in good faith, based upon the advice of
               outside counsel, that it is necessary to do so in order
               to act in a manner consistent with its fiduciary duties
               to CUC's stockholders under applicable law, may (subject
               to this and the following sentences) terminate this
               Agreement solely in order to concurrently enter into any
               CUC Acquisition Agreement with respect to any CUC
               Superior Proposal, but only at a time that is after the
               fifth business day following HFS's receipt of written
               notice advising HFS that the Board of Directors of CUC is
               prepared to accept a CUC Superior Proposal, specifying
               the material terms and conditions of such CUC Superior
               Proposal and identifying the person making such CUC
               Superior Proposal.  For purposes of this Agreement, a
               "CUC Superior Proposal" means any proposal made by a
               third party to acquire, directly or indirectly, including
               pursuant to a tender offer, exchange offer, merger,
               consolidation, business combination, recapitalization,
               liquidation, dissolution or similar transaction, for
               consideration consisting of cash and/or securities, more
               than 50% of the combined voting power of the shares of
               CUC Common Stock then outstanding or all or substantially
               all the assets of CUC and otherwise on terms which the
               Board of Directors of CUC determines in its good faith
               judgment (based on the advice of a financial advisor of
               nationally recognized reputation) to be more favorable to
               CUC's stockholders than the Merger and for which
               financing, to the extent required, is then committed or
               which, in the good faith judgment of the Board of
               Directors of CUC based on the advice of its financial
               advisor, is reasonably capable of being obtained by such
               third party.

                         (c)  In addition to the obligations of CUC set
               forth in paragraphs (a) and (b) of this Section 4.3, CUC
               shall immediately advise HFS orally and in writing of any
               request for information or of any CUC Takeover Proposal,
               the material terms and conditions of such request or CUC
               Takeover Proposal and the identity of the person making
               such request or CUC Takeover Proposal.  CUC will keep HFS
               reasonably informed of the status and details (including
               amendments or proposed amendments) of any such request or
               CUC Takeover Proposal.

                         (d)  Nothing contained in this Section 4.3
               shall prohibit CUC from taking and disclosing to its
               stockholders a position contemplated by Rule 14e-2(a)
               promulgated under the Exchange Act or from making any
               disclosure to CUC's stockholders if, in the good faith
               judgment of the Board of Directors of CUC, after
               consultation with outside counsel, failure so to disclose
               would be inconsistent with its obligations under
               applicable law; provided, however, that neither CUC nor
               its Board of Directors nor any committee thereof shall
               withdraw or modify, or propose publicly to withdraw or
               modify, its position with respect to this Agreement, the
               Merger, the issuance of CUC Common Stock in connection
               with the Merger, or approve or recommend, or propose
               publicly to approve or recommend, a CUC Takeover
               Proposal.

                                       ARTICLE V

                                 ADDITIONAL AGREEMENTS

                         SECTION 5.1.  Preparation of the Form S-4 and
               the Joint Proxy Statement; Stockholders Meetings.  (a) 
               As soon as practicable following the date of this
               Agreement, HFS and CUC shall prepare and file with the
               SEC the Joint Proxy Statement and CUC shall prepare and
               file with the SEC the Form S-4, in which the Joint Proxy
               Statement will be included as a prospectus.  Each of HFS
               and CUC shall use best efforts to have the Form S-4
               declared effective under the Securities Act as promptly
               as practicable after such filing.  HFS will use all best
               efforts to cause the Joint Proxy Statement to be mailed
               to HFS's stockholders, and CUC will use all best efforts
               to cause the Joint Proxy Statement to be mailed to CUC's
               stockholders, in each case as promptly as practicable
               after the Form S-4 is declared effective under the
               Securities Act.  CUC shall also take any action (other
               than qualifying to do business in any jurisdiction in
               which it is not now so qualified or to file a general
               consent to service of process) required to be taken under
               any applicable state securities laws in connection with
               the issuance of CUC Common Stock in the Merger and the
               approval of the Certificate Amendment and HFS shall
               furnish all information concerning HFS and the holders of
               HFS Common Stock as may be reasonably requested in
               connection with any such action.  No filing of, or
               amendment or supplement to, the Form S-4 or the Joint
               Proxy Statement will be made by CUC without providing HFS
               the opportunity to review and comment thereon.  CUC will
               advise HFS, promptly after it receives notice thereof, of
               the time when the Form S-4 has become effective or any
               supplement or amendment has been filed, the issuance of
               any stop order, the suspension of the qualification of
               the CUC Common Stock issuable in connection with the
               Merger for offering or sale in any jurisdiction, or any
               request by the SEC for amendment of the Joint Proxy
               Statement or the Form S-4 or comments thereon and
               responses thereto or requests by the SEC for additional
               information.  If at any time prior to the Effective Time
               any information relating to HFS or CUC, or any of their
               respective affiliates, officers or directors, should be
               discovered by HFS or CUC which should be set forth in an
               amendment or supplement to any of the Form S-4 or the
               Joint Proxy Statement, so that any of such documents
               would not include any misstatement of a material fact or
               omit to state any material fact necessary to make the
               statements therein, in light of the circumstances under
               which they were made, not misleading, the party which
               discovers such information shall promptly notify the
               other parties hereto and an appropriate amendment or
               supplement describing such information shall be promptly
               filed with the SEC and, to the extent required by law,
               disseminated to the stockholders of HFS and CUC.

                         (b)  HFS shall, as promptly as practicable
               after the Form S-4 is declared effective under the
               Securities Act, duly call, give notice of, convene and
               hold a meeting of its stockholders (the "HFS Stockholders
               Meeting") in accordance with the DGCL for the purpose of
               obtaining the HFS Stockholder Approval and, subject to
               its rights to terminate this Agreement pursuant to
               Section 4.2(b), shall, through its Board of Directors,
               recommend to its stockholders the approval and adoption
               of this Agreement, the Merger, the New CUC Stock Plan and
               the other transactions contemplated hereby.  Without
               limiting the generality of the foregoing but subject to
               its rights to terminate this Agreement pursuant to
               Section 4.2(b), HFS agrees that its obligations pursuant
               to the first sentence of this Section 5.1(b) shall not be
               affected by the commencement, public proposal, public
               disclosure or communication to HFS of any HFS Takeover
               Proposal.

                         (c)  CUC shall, as promptly as practicable
               after the Form S-4 is declared effective under the
               Securities Act, duly call, give notice of, convene and
               hold a meeting of its stockholders (the "CUC Stockholders
               Meeting") in accordance with the DGCL for the purpose of
               obtaining the CUC Stockholder Approval and, subject to
               its rights to terminate this Agreement pursuant to
               Section 4.3(b), shall, through its Board of Directors,
               recommend to its stockholders the approval and adoption
               of this Agreement, the Merger, the Certificate Amendment,
               the New CUC Stock Plan and the other transactions
               contemplated hereby.  Without limiting the generality of
               the foregoing but subject to its rights to terminate this
               Agreement pursuant to Section 4.3(b), CUC agrees that its
               obligations pursuant to the first sentence of this
               Section 5.1(c) shall not be affected by the commencement,
               public proposal, public disclosure or communication to
               CUC of any CUC Takeover Proposal.

                         (d)  CUC and HFS will use best efforts to hold
               the HFS Stockholders Meeting and the CUC Stockholders
               Meeting on the same date and as soon as reasonably
               practicable after the date hereof.

                         SECTION 5.2.  Letters of HFS's Accountants. 
               (a)  HFS shall use best efforts to cause to be delivered
               to CUC two letters from HFS's independent accountants,
               one dated a date within two business days before the date
               on which the Form S-4 shall become effective and one
               dated a date within two business days before the Closing
               Date, each addressed to CUC, in form and substance
               reasonably satisfactory to CUC and customary in scope and
               substance for comfort letters delivered by independent
               public accountants in connection with registration
               statements similar to the Form S-4.

                         (b)  HFS shall use best efforts to cause to be
               delivered to CUC and CUC's accountants a letter from
               HFS's independent accountants addressed to CUC and HFS,
               dated as of the date the Form S-4 is declared effective
               and as of the Closing Date, stating that accounting for
               the Merger as a pooling of interests under Opinion 16 of
               the Accounting Principles Board and applicable SEC rules
               and regulations is appropriate if the Merger is closed
               and consummated as contemplated by this Agreement.

                         SECTION 5.3.  Letters of CUC's Accountants. (a) 
               CUC shall use best efforts to cause to be delivered to
               HFS two letters from CUC's independent accountants, one
               dated a date within two business days before the date on
               which the Form S-4 shall become effective and one dated a
               date within two business days before the Closing Date,
               each addressed to HFS, in form and substance reasonably
               satisfactory to HFS and customary in scope and substance
               for comfort letters delivered by independent public
               accountants in connection with registration statements
               similar to the Form S-4.

                         (b)  CUC shall use best efforts to cause to be
               delivered to HFS and HFS's accountants a letter from
               CUC's independent accountants, addressed to HFS and CUC,
               dated as of the date the Form S-4 is declared effective
               and as of the Closing Date, stating that accounting for
               the Merger as a pooling of interests under Opinion 16 of
               the Accounting Principles Board and applicable SEC rules
               and regulations is appropriate if the Merger is closed
               and consummated as contemplated by this Agreement.

                         SECTION 5.4.  Access to Information;
               Confidentiality.  Subject to the Confidentiality
               Agreement dated May 9, 1997, between CUC and HFS (the
               "Confidentiality Agreement"), and subject to restrictions
               contained in confidentiality agreements to which such
               party is subject (which such party will use its best
               efforts to have waived) and applicable law, each of HFS
               and CUC shall, and shall cause each of its respective
               subsidiaries to, afford to the other party and to the
               officers, employees, accountants, counsel, financial
               advisors and other representatives of such other party,
               reasonable access during normal business hours during the
               period prior to the Effective Time to all their
               respective properties, books, contracts, commitments,
               personnel and records and, during such period, each of
               HFS and CUC shall, and shall cause each of its respective
               subsidiaries to, furnish promptly to the other party (a)
               a copy of each report, schedule, registration statement
               and other document filed by it during such period
               pursuant to the requirements of federal or state
               securities laws and (b) all other information concerning
               its business, properties and personnel as such other
               party may reasonably request.  No review pursuant to this
               Section 5.4 shall affect any representation or warranty
               given by the other party hereto.  Each of HFS and CUC
               will hold, and will cause its respective officers,
               employees, accountants, counsel, financial advisors and
               other representatives and affiliates to hold, any
               nonpublic information in accordance with the terms of the
               Confidentiality Agreement.

                         SECTION 5.5.  Best Efforts.  (a)  Upon the
               terms and subject to the conditions set forth in this
               Agreement, each of the parties agrees to use best efforts
               to take, or cause to be taken, all actions, and to do, or
               cause to be done, and to assist and cooperate with the
               other parties in doing, all things necessary, proper or
               advisable to consummate and make effective, in the most
               expeditious manner practicable, the Merger and the other
               transactions contemplated by this Agreement, including
               (i) the obtaining of all necessary actions or nonactions,
               waivers, consents and approvals from Governmental
               Entities and the making of all necessary registrations
               and filings and the taking of all steps as may be
               necessary to obtain an approval or waiver from, or to
               avoid an action or proceeding by, any Governmental
               Entity, (ii) the obtaining of all necessary consents,
               approvals or waivers from third parties, (iii) the
               defending of any lawsuits or other legal proceedings,
               whether judicial or administrative, challenging this
               Agreement or the consummation of the transactions
               contemplated by this Agreement, including seeking to have
               any stay or temporary restraining order entered by any
               court or other Governmental Entity vacated or reversed,
               and (iv) the execution and delivery of any additional
               instruments necessary to consummate the transactions
               contemplated by, and to fully carry out the purposes of,
               this Agreement.  Nothing set forth in this Section 5.5(a)
               will limit or affect actions permitted to be taken
               pursuant to Sections 4.2 and 4.3.

                         (b)  In connection with and without limiting
               the foregoing, HFS and CUC shall (i) take all action
               necessary to ensure that no state takeover statute or
               similar statute or regulation is or becomes applicable to
               the Merger, this Agreement, or any of the other
               transactions contemplated by this Agreement and (ii) if
               any state takeover statute or similar statute or
               regulation becomes applicable to the Merger, this
               Agreement, or any other transaction contemplated by this
               Agreement, take all action necessary to ensure that the
               Merger and the other transactions contemplated by this
               Agreement may be consummated as promptly as practicable
               on the terms contemplated by this Agreement and otherwise
               to minimize the effect of such statute or regulation on
               the Merger and the other transactions contemplated by
               this Agreement.

                         SECTION 5.6.  Stock Options.  (a)  As soon as
               practicable following the date of this Agreement, the
               Board of Directors of HFS (or, if appropriate, any
               committee administering the HFS Stock Plans) shall adopt
               such resolutions or take such other actions as may be
               required to effect the following:

                               (i)  adjust the terms of all outstanding
                    HFS Employee Stock Options granted under HFS Stock
                    Plans, whether vested or unvested, as necessary to
                    provide that, at the Effective Time, each HFS
                    Employee Stock Option outstanding immediately prior
                    to the Effective Time shall be adjusted and
                    thereafter represent an option to acquire, on the
                    same terms and conditions as were applicable under
                    such HFS Employee Stock Option, including vesting as
                    such may be accelerated at the Effective Time
                    pursuant to the terms of such HFS Employee Stock
                    Options in effect as of the date hereof (which
                    include cashless exercise), the same number of
                    shares of CUC Common Stock as the holder of such HFS
                    Employee Stock Option would have been entitled to
                    receive pursuant to the Merger had such holder
                    exercised such HFS Employee Stock Option in full
                    immediately prior to the Effective Time, with any
                    fractional shares of CUC Common Stock resulting from
                    such calculation being rounded to the nearest whole
                    share, at a price per share of CUC Common Stock
                    equal to (A) the aggregate exercise price for the
                    shares of HFS Common Stock otherwise purchasable
                    pursuant to such HFS Employee Stock Option divided
                    by (B) the aggregate number of shares of CUC Common
                    Stock deemed purchasable pursuant to such HFS
                    Employee Stock Option, rounding the exercise price
                    thus determined down to the nearest whole cent
                    (each, as so adjusted, an "Adjusted Option"); and

                               (ii)  take such other actions relating
                    to the HFS Stock Plans as HFS and CUC may agree are
                    appropriate to give effect to the Merger, including
                    as provided in Section 5.7.

                         (b)  As soon as practicable after the Effective
               Time, CUC shall deliver to the holders of HFS Employee
               Stock Options appropriate notices setting forth such
               holders' rights pursuant to the respective HFS Stock
               Plans and the agreements evidencing the grants of such
               HFS Employee Stock Options and that such HFS Employee
               Stock Options and agreements shall be assumed by CUC and
               shall continue in effect on the same terms and conditions
               (subject to the adjustments required by this Section 5.6
               after giving effect to the Merger).

                         (c)  A holder of an Adjusted Option may
               exercise such Adjusted Option in whole or in part in
               accordance with its terms by delivering a properly
               executed notice of exercise to CUC, together with the
               consideration therefor and the federal withholding tax
               information, if any, required in accordance with the
               related HFS Stock Plan.

                         (d)  Except as otherwise contemplated by this
               Section 5.6 and except to the extent required under the
               respective terms of the HFS Employee Stock Options in
               effect as of the date hereof, all restrictions or
               limitations on transfer and vesting with respect to HFS
               Employee Stock Options awarded under the HFS Stock Plans
               or any other plan, program or arrangement of HFS or any
               of its subsidiaries, to the extent that such restrictions
               or limitations shall not have already lapsed, shall
               remain in full force and effect with respect to such
               options after giving effect to the Merger and the
               assumption by CUC as set forth above.

                         SECTION 5.7.  HFS Stock Plans and Certain
               Employee Matters.  (a)  At the Effective Time, by virtue
               of the Merger, the HFS Stock Plans shall be assumed by
               CUC, with the result that all obligations of HFS under
               the HFS Stock Plans, including with respect to awards
               outstanding at the Effective Time under each HFS Stock
               Plan, shall be obligations of CUC following the Effective
               Time.  Prior to the Effective Time, CUC shall take all
               necessary actions (including, if required to comply with
               Section 162(m) or 422 of the Code (and the regulations
               thereunder) or applicable law or rule of the NYSE,
               obtaining the approval of its stockholders at the CUC
               Stockholders Meeting) for the assumption of the HFS Stock
               Plans, including the reservation, issuance and listing of
               CUC Common Stock in a number at least equal to (x) the
               number of shares of CUC Common Stock that will be subject
               to Adjusted Options and (y) the product of the Exchange
               Ratio and the number of shares of HFS Common Stock
               available for future awards under the HFS Stock Plans
               immediately prior to the Effective Time.  No later than
               the Effective Time, CUC shall prepare and file with the
               SEC a registration statement on Form S-8 (or another
               appropriate form) registering a number of shares of CUC
               Common Stock determined in accordance with the preceding
               sentence and the unrestricted reoffer and resale of such
               shares.  Such registration statement shall be kept
               effective (and the current status of the prospectus or
               prospectuses required thereby shall be maintained) at
               least for so long as Adjusted Options remain outstanding
               and until such time as the shares of CUC Common Stock
               subject to such Adjusted Options are no longer subject to
               resale restrictions under the Securities Act.

                         (b)  Following the Effective Time, CUC, as the
               Surviving Corporation in the Merger, will honor all
               obligations of HFS or its subsidiaries under employment
               agreements of HFS or its subsidiaries as amended and/or
               restated as contemplated in this Agreement.

                         SECTION 5.8.  Indemnification, Exculpation and
               Insurance.  (a)  CUC agrees to maintain in effect in
               accordance with their terms all rights to indemnification
               and exculpation from liabilities for acts or omissions
               occurring at or prior to the Effective Time now existing
               in favor of the current or former directors or officers
               of HFS and its subsidiaries as provided in their
               respective certificates of incorporation or by-laws (or
               comparable organizational documents) and any
               indemnification agreements of HFS.  In addition, from and
               after the Effective Time, directors and officers of HFS
               who become directors or officers of CUC will be entitled
               to the same indemnity rights and protections as are
               afforded to other directors and officers of CUC.

                         (b)  In the event that CUC or any of its
               successors or assigns (i) consolidates with or merges
               into any other person and is not the continuing or
               surviving corporation or entity of such consolidation or
               merger or (ii) transfers or conveys all or substantially
               all of its properties and assets to any person, then, and
               in each such case, proper provision will be made so that
               the successors and assigns of CUC assume the obligations
               set forth in this Section 5.8.

                         (c)  For seven years after the Effective Time,
               CUC shall provide to HFS's current directors and officers
               liability insurance covering acts or omissions occurring
               prior to the Effective Time with respect to those persons
               who are currently covered by HFS's directors' and
               officers' liability insurance policy on terms with
               respect to such coverage and amount no less favorable
               than those of such policy in effect on the date hereof,
               provided that in no event shall CUC be required to expend
               more than 200% of the current amount expended by HFS to
               maintain such coverage.

                         (d)  The provisions of this Section 5.8 (i) are
               intended to be for the benefit of, and will be
               enforceable by, each indemnified party, his or her heirs
               and his or her representatives and (ii) are in addition
               to, and not in substitution for, any other rights to
               indemnification or contribution that any such person may
               have by contract or otherwise.

                         SECTION 5.9.  Fees and Expenses.  (a)  Except
               as provided in this Section 5.9, all fees and expenses
               incurred in connection with the Merger, this Agreement,
               and the transactions contemplated by this Agreement shall
               be paid by the party incurring such fees or expenses,
               whether or not the Merger is consummated, except that
               each of CUC and HFS shall bear and pay one-half of the
               costs and expenses incurred in connection with (1) the
               filing, printing and mailing of the Form S-4 and the
               Joint Proxy Statement (including SEC filing fees) and (2)
               the filings of the pre-merger notification and report
               forms under the HSR Act (including filing fees).

                         (b)  In the event that (i) an HFS Takeover
               Proposal shall have been made known to HFS or any of its
               subsidiaries or has been made directly to its
               stockholders generally or any person shall have publicly
               announced an intention (whether or not conditional) to
               make an HFS Takeover Proposal and thereafter this
               Agreement is terminated by either CUC or HFS pursuant to
               Section 7.1(b)(i) or (ii), or (ii) this Agreement is
               terminated by HFS pursuant to Section 7.1(f), then HFS
               shall promptly, but in no event later than two days after
               the date of such termination, pay CUC a fee equal to $300
               million (the "Termination Fee"), payable by wire transfer
               of same day funds; provided, however, that no Termination
               Fee shall be payable to CUC pursuant to clause (i) of
               this paragraph (b) unless and until within 18 months of
               such termination HFS or any of its subsidiaries enters
               into any HFS Acquisition Agreement or any transaction
               which would be an HFS Takeover Proposal is consummated,
               in which event the Termination Fee shall be payable upon
               the first to occur of such events.  HFS acknowledges that
               the agreements contained in this Section 5.9(b) are an
               integral part of the transactions contemplated by this
               Agreement, and that, without these agreements, CUC would
               not enter into this Agreement; accordingly, if HFS fails
               promptly to pay the amount due pursuant to this Section
               5.9(b), and, in order to obtain such payment, CUC
               commences a suit which results in a judgment against HFS
               for the fee set forth in this Section 5.9(b), HFS shall
               pay to CUC its costs and expenses (including attorneys'
               fees and expenses) in connection with such suit, together
               with interest on the amount of the fee at the prime rate
               of Citibank N.A. in effect on the date such payment was
               required to be made.

                         (c)  In the event that (i) a CUC Takeover
               Proposal shall have been made known to CUC or any of its
               subsidiaries or has been made directly to its
               stockholders generally or any person shall have publicly
               announced an intention (whether or not conditional) to
               make a CUC Takeover Proposal and thereafter this
               Agreement is terminated by either CUC or HFS pursuant to
               Section 7.1(b)(i) or (iii), or (ii) this Agreement is
               terminated by CUC pursuant to Section 7.1(d), then CUC
               shall promptly, but in no event later than two days after
               the date of such termination, pay HFS the Termination
               Fee, payable by wire transfer of same day funds;
               provided, however, that no Termination Fee shall be
               payable to HFS pursuant to clause (i) of this paragraph
               (c) unless and until within 18 months of such termination
               CUC or any of its subsidiaries enters into any CUC
               Acquisition Agreement or any transaction which would be a
               CUC Takeover Proposal is consummated, in which event the
               Termination Fee shall be payable upon the first to occur
               of such events.  CUC acknowledges that the agreements
               contained in this Section 5.9(c) are an integral part of
               the transactions contemplated by this Agreement, and
               that, without these agreements, HFS would not enter into
               this Agreement; accordingly, if CUC fails promptly to pay
               the amount due pursuant to this Section 5.9(c), and, in
               order to obtain such payment, HFS commences a suit which
               results in a judgment against CUC for the fee set forth
               in this Section 5.9(c), CUC shall pay to HFS its costs
               and expenses (including attorneys' fees and expenses) in
               connection with such suit, together with interest on the
               amount of the fee at the prime rate of Citibank N.A. in
               effect on the date such payment was required to be made.

                         SECTION 5.10.  Public Announcements.  CUC and
               HFS will consult with each other before issuing, and
               provide each other the opportunity to review, comment
               upon and concur with and use reasonable efforts to agree
               on, any press release or other public statements with
               respect to the transactions contemplated by this
               Agreement, including the Merger, and shall not issue any
               such press release or make any such public statement
               prior to such consultation, except as either party may
               determine is required by applicable law, court process or
               by obligations pursuant to any listing agreement with any
               national securities exchange.  The parties agree that the
               initial press release to be issued with respect to the
               transactions contemplated by this Agreement shall be in
               the form heretofore agreed to by the parties.

                         SECTION 5.11.  Affiliates.  (a) As soon as
               practicable after the date hereof, HFS shall deliver to
               CUC a letter identifying all persons who are, at the time
               this Agreement is submitted for adoption by the
               stockholders of HFS, "affiliates" of HFS for purposes of
               Rule 145 under the Securities Act or for purposes of
               qualifying the Merger for pooling of interests accounting
               treatment under Opinion 16 of the Accounting Principles
               Board and applicable SEC rules and regulations, and such
               list shall be updated as necessary to reflect changes
               from the date hereof.  HFS shall use best efforts to
               cause each person identified on such list to deliver to
               CUC not less than 30 days prior to the Effective Time, a
               written agreement substantially in the form attached as
               Exhibit C hereto.  CUC shall use best efforts to cause
               all persons who are "affiliates" of CUC for purposes of
               qualifying the Merger for pooling of interests accounting
               treatment under Opinion 16 of the Accounting Principles
               Board and applicable SEC rules and regulations to deliver
               to HFS not less than 30 days prior to the Effective Time,
               a written agreement substantially in the form of the
               fourth paragraph of Exhibit C hereto.

                         (b)  CUC shall publish no later than 45 days
               after the end of the first month after the Effective Time
               in which there are at least 30 days of post Merger
               combined operations (which month may be the month in
               which the Effective Time occurs), combined sales and net
               income figures as contemplated by and in accordance with
               the terms of SEC Accounting Series Release No. 135.

                         SECTION 5.12.  NYSE Listing.  CUC shall use
               best efforts to cause the CUC Common Stock issuable under
               Article II, upon exercise of Adjusted Options pursuant to
               Section 5.6 and upon exercise of the options to purchase
               shares of CA Common Stock granted pursuant to Section
               5.17 and the shares of restricted CA Common Stock issued
               pursuant to Section 5.17 to be approved for listing on
               the NYSE, subject to official notice of issuance, as
               promptly as practicable after the date hereof, and in any
               event prior to the Closing Date.

                         SECTION 5.13.  Stockholder Litigation.  Each of
               HFS and CUC shall give the other the reasonable
               opportunity to participate in the defense of any
               stockholder litigation against HFS or CUC, as applicable,
               and its directors relating to the transactions
               contemplated by this Agreement.

                         SECTION 5.14.  Tax Treatment.  Each of CUC and
               HFS shall use best efforts to cause the Merger to qualify
               as a reorganization under the provisions of Section 368
               of the Code and to obtain the opinions of counsel
               referred to in Sections 6.2(c) and 6.3(c).

                         SECTION 5.15.  Pooling of Interests.  Each of
               HFS and CUC shall use best efforts to cause the
               transactions contemplated by this Agreement, including
               the Merger, to be accounted for as a pooling of interests
               under Opinion 16 of the Accounting Principles Board and
               applicable SEC rules and regulations, and such accounting
               treatment to be accepted by the SEC, and each of HFS and
               CUC agrees that it shall take no action that would cause
               such accounting treatment not to be obtained.

                         SECTION 5.16.  Standstill Agreements;
               Confidentiality Agreements.  During the period from the
               date of this Agreement through the Effective Time,
               neither HFS nor CUC shall terminate, amend, modify or
               waive any provision of any confidentiality or standstill
               agreement to which it or any of its respective
               subsidiaries is a party.  During such period, HFS or CUC,
               as the case may be, shall enforce, to the fullest extent
               permitted under applicable law, the provisions of any
               such agreement, including by obtaining injunctions to
               prevent any breaches of such agreements and to enforce
               specifically the terms and provisions thereof in any
               court of the United States of America or of any state
               having jurisdiction.

                         SECTION 5.17.  Company Officers; Employment
               Contracts; Equity Awards.   (a)  Pursuant to and in
               accordance with the terms hereof and of the amended
               and/or restated employment agreements referred to in
               Section 5.17(b) (i) at the Effective Time and until
               January 1, 2000, Mr. Forbes shall serve as Chairman of
               the Board of Directors and Chairman of the Executive
               Committee of CUC, and from and after January 1, 2000, Mr.
               Forbes shall be President and Chief Executive Officer of
               CUC but shall not be Chairman of the Board or Chairman of
               the Executive Committee of CUC, and (ii) at the Effective
               Time and until January 1, 2000, Mr. Silverman shall serve
               as President and Chief Executive Officer of CUC, and from
               and after January 1, 2000, Mr. Silverman shall be
               Chairman of the Board of Directors and Chairman of the
               Executive Committee of CUC but not President and Chief
               Executive Officer of CUC.  If either of such persons is
               unable or unwilling to hold such offices for the period
               set forth in his employment agreement, his successor
               shall be selected by the Board of Directors of CUC in the
               manner set forth in the Restated By-laws.

                         (b)   At or prior to the Effective Time, CUC
               agrees to enter into the amended and restated employment
               agreements substantially in the forms set forth in
               Exhibit 5.17 attached hereto with the CUC officers
               identified in Exhibit 5.17, and HFS agrees to enter into
               amendments to and/or restatements of the employment
               agreements substantially in the forms set forth in
               Exhibit 5.17 attached hereto with the HFS officers
               identified in Exhibit 5.17.

                         (c)   At the Effective Time, the officers and
               key employees of the Surviving Corporation, identified in
               Exhibit 5.17, will be granted (i) shares of restricted
               CUC Common Stock with an aggregate value of $30 million
               (based on the Average CUC Price), the terms and
               conditions with respect to which shall be no less
               favorable than the terms and conditions applicable to
               restricted stock held by executive officers of CUC as of
               the date hereof and (ii) options to acquire an aggregate
               of 19,800,000 shares of CUC Common Stock at an exercise
               price per share equal to the market value of a share of
               CUC Common Stock on the date of grant.  All terms and
               conditions applicable to such options shall be as
               provided in the New CUC Stock Plan, except that the terms
               and conditions applicable to the options granted to Mr.
               Silverman pursuant to his amended employment agreement
               under Section 5.17(b) shall be no less favorable to the
               terms and conditions of outstanding options held by Mr.
               Silverman as of the date hereof.  Stock awards granted
               pursuant to this Section 5.17(c) shall be made in such
               amounts as identified in Exhibit 5.17 for each
               individual.  The aggregate amount of options to be
               granted pursuant to this Section 5.17(c) is in addition
               to the amount of options to acquire shares of CUC Common
               Stock granted to Mr. Silverman pursuant to his amended
               employment agreement under Section 5.17(b).  

                         (d)  Prior to the Effective Time, each of CUC
               and HFS agree to adopt a stock option and restricted
               stock plan (the "New CUC Stock Plan"), the terms of which
               shall be mutually agreed upon by CUC and HFS, pursuant to
               which the option and restricted share grants described in
               paragraph (c) of this Section 5.17 and in the amended
               and/or restated employment agreements referred to in this
               5.17 will be made.  

                         SECTION 5.18.  Post-Merger Operations. 
               Following the Effective Time, the combined company shall
               maintain a corporate office in New York City, CUC shall
               maintain its principal corporate offices in Stamford,
               Connecticut and HFS shall maintain its principal
               corporate offices in Parsippany, New Jersey.

                         SECTION 5.19.  Conveyance Taxes.  CUC and HFS
               shall cooperate in the preparation, execution and filing
               of all returns, questionnaires, applications or other
               documents regarding any real property transfer or gains,
               sales, use, transfer, value added, stock transfer and
               stamp taxes, any transfer, recording, registration and
               other fees or any similar taxes which become payable in
               connection with the transactions contemplated by this
               Agreement that are required or permitted to be filed on
               or before the Effective Time.  CUC shall pay, and HFS
               shall pay, without deduction or withholding from any
               amount payable to the holders of HFS Common Stock, any
               such taxes or fees imposed by any Governmental Entity
               (and any penalties and interest with respect to such
               taxes and fees), which become payable in connection with
               the transactions contemplated by this Agreement, on
               behalf of their respective stockholders.

                         SECTION 5.20.  HFS Convertible Notes.  From and
               after the date hereof and prior to the Effective Time,
               each of CUC or HFS, as applicable, shall take such
               actions (including entering into supplemental indentures)
               with respect to the notes of HFS issued under (i) the
               Indenture between HFS and Bank of America Illinois, dated
               October 1, 1994, relating to HFS's 41/2% Convertible Senior
               Notes due 1999 and (ii) the Indenture between HFS and
               First Trust of Illinois, National Association, dated
               February 28, 1996, relating to HFS's 4 % Convertible
               Senior Notes due 2003, to implement the provisions of
               such Indentures which provide that such notes shall be
               convertible into shares of CUC Common Stock and not HFS
               Common Stock from and after the Effective Time.

                         SECTION 5.21.  Transition Planning.  Mr.
               Silverman and Mr. Forbes, as Chairmen of HFS and CUC,
               respectively, jointly shall be responsible for
               coordinating all aspects of transition planning and
               implementation relating to the Merger and the other
               transactions contemplated hereby.  If either such person
               ceases to be Chairman of his respective company for any
               reason, such person's successor as Chairman shall assume
               his predecessor's responsibilities under this Section
               5.21.

                                       ARTICLE VI

                                  CONDITIONS PRECEDENT

                         SECTION 6.1.  Conditions to Each Party's
               Obligation to Effect the Merger.  The respective
               obligation of each party to effect the Merger is subject
               to the satisfaction or waiver on or prior to the Closing
               Date of the following conditions:

                         (a)   Stockholder Approvals.  Each of the HFS
               Stockholder Approval and the CUC Stockholder Approval
               shall have been obtained.

                         (b)   HSR Act.  The waiting period (and any
               extension thereof) applicable to the Merger under the HSR
               Act shall have been terminated or shall have expired.

                         (c)   Governmental and Regulatory Approvals.
               Other than the filing provided for under Section 1.3 and
               filings pursuant to the HSR Act (which are addressed in
               Section 6.1(b)), all consents, approvals and actions of,
               filings with and notices to any Governmental Entity
               required of HFS, CUC or any of their subsidiaries to
               consummate the Merger and the other transactions
               contemplated hereby, the failure of which to be obtained
               or taken (i) is reasonably expected to have a material
               adverse effect on the Surviving Corporation and its
               prospective subsidiaries, taken as a whole, or (ii) will
               result in a violation of any laws, shall have been
               obtained, all in form and substance reasonably
               satisfactory to HFS and CUC.

                         (d)   No Injunctions or Restraints.  No
               judgment, order, decree, statute, law, ordinance, rule or
               regulation, entered, enacted, promulgated, enforced or
               issued by any court or other Governmental Entity of
               competent jurisdiction or other legal restraint or
               prohibition (collectively, "Restraints") shall be in
               effect (i) preventing the consummation of the Merger, or
               (ii) which otherwise is reasonably likely to have a
               material adverse effect on HFS or CUC, as applicable;
               provided, however, that each of the parties shall have
               used its best efforts to prevent the entry of any such
               Restraints and to appeal as promptly as possible any such
               Restraints that may be entered.

                         (e)   Form S-4.  The Form S-4 shall have
               become effective under the Securities Act prior to the
               mailing of the Joint Proxy Statement by each of HFS and
               CUC to their respective stockholders and no stop order or
               proceedings seeking a stop order shall be threatened by
               the SEC or shall have been initiated by the SEC.

                         (f)   NYSE Listing.  The shares of CUC Common
               Stock issuable to HFS's stockholders as contemplated by
               Article II, the shares of CUC Common Stock issuable upon
               exercise of Adjusted Options pursuant to Section 5.6 and
               upon exercise of the options to purchase shares of CUC
               Common Stock granted pursuant to Section 5.17 and the
               shares of restricted CUC Common Stock issued pursuant to
               Section 5.17 shall have been approved for listing on the
               NYSE, subject to official notice of issuance.

                         (g)   Pooling Letters.  CUC and HFS shall have
               received letters from each of HFS's independent
               accountants and CUC's independent accountants, dated as
               of the date the Form S-4 is declared effective and as of
               the Closing Date, in each case addressed to CUC and HFS,
               stating that accounting for the Merger as a pooling of
               interests under Opinion 16 of the Accounting Principles
               Board and applicable SEC rules and regulations is
               appropriate if the Merger is consummated and closed as
               contemplated by this Agreement.

                         (h)   Corporate Governance.  CUC shall have
               taken all such actions as shall be necessary so that (i)
               the Certificate Amendment and By-Laws Amendment shall
               become effective not later than the Effective Time; (ii)
               the resolutions set forth as part of Exhibit B shall have
               been adopted, to be effective upon the Effective Time;
               and (iii) at the Effective Time, the composition of the
               CUC Board of Directors and the committees of such Board
               shall comply with the Restated Certificate, the Restated
               By-laws and Exhibit B hereof (assuming HFS has designated
               the HFS Directors and CUC has designated the CUC
               Directors, in each case as contemplated by Exhibit B).

                         SECTION 6.2.  Conditions to Obligations of CUC. 
               The obligation of CUC to effect the Merger is further
               subject to satisfaction or waiver of the following
               conditions:

                         (a)   Representations and Warranties.  The
               representations and warranties of HFS set forth herein
               shall be true and correct both when made and at and as of
               the Closing Date, as if made at and as of such time
               (except to the extent expressly made as of an earlier
               date, in which case as of such date), except where the
               failure of such representations and warranties to be so
               true and correct (without giving effect to any limitation
               as to "materiality" or "material adverse effect" set
               forth therein) does not have, and is not likely to have,
               individually or in the aggregate, a material adverse
               effect on HFS; provided, that the representations and
               warranties of HFS set forth in Sections 3.1(i), (j)(iii),
               (j)(iv) and (j)(v) and (s) shall nonetheless be deemed
               true and correct at and as of the Closing Date regardless
               of changes therein caused by an acquisition permitted by
               4.1(a)(iv) or by the incurrence of indebtedness permitted
               by 4.1(a)(vii), except to the extent that such changes
               have, or could reasonably be expected to have, a material
               adverse effect on HFS.

                         (b)   Performance of Obligations of HFS.  HFS
               shall have performed in all material respects all
               obligations required to be performed by it under this
               Agreement at or prior to the Closing Date.

                         (c)   Tax Opinions.  CUC shall have received
               from Wachtell, Lipton, Rosen & Katz, counsel to CUC, on a
               date immediately prior to the mailing of the Joint Proxy
               Statement and on the Closing Date, opinions, in each case
               dated as of such respective dates, to the effect that:
               (i) the Merger will constitute a "reorganization" within
               the meaning of Section 368(a) of the Code, and CUC and
               HFS will each be a party to such reorganization within
               the meaning of Section 368(b) of the Code; (ii) no gain
               or loss will be recognized by CUC or HFS as a result of
               the Merger; (iii) no gain or loss will be recognized by
               the stockholders of HFS upon the exchange of their shares
               of HFS Common Stock solely for shares of CUC Common Stock
               pursuant to the Merger, except with respect to cash, if
               any, received in lieu of fractional shares of CUC Common
               Stock; (iv) the aggregate tax basis of the shares of CUC
               Common Stock received solely in exchange for shares of
               HFS Common Stock pursuant to the Merger (including
               fractional shares of CUC Common Stock for which cash is
               received) will be the same as the aggregate tax basis of
               the shares of HFS Common Stock exchanged therefor; and
               (v) the holding period for shares of CUC Common Stock
               received in exchange for shares of HFS Common Stock
               pursuant to the Merger will include the holding period of
               the shares of HFS Common Stock exchanged therefor,
               provided such shares of HFS Common Stock were held as
               capital assets by the stockholder at the Effective Time. 
               In rendering such opinions, counsel for CUC shall be
               entitled to rely upon representations of officers of CUC,
               HFS and stockholders of HFS substantially in the form of
               Exhibits D and E hereto.

                         (d)   No Material Adverse Change.  At any time
               after the date of this Agreement there shall not have
               occurred any material adverse change relating to HFS.

                         SECTION 6.3.  Conditions to Obligations of HFS. 
               The obligation of HFS to effect the Merger is further
               subject to satisfaction or waiver of the following
               conditions:

                         (a)   Representations and Warranties.  The
               representations and warranties of CUC set forth herein
               shall be true and correct both when made and at and as of
               the Closing Date, as if made at and as of such time
               (except to the extent expressly made as of an earlier
               date, in which case as of such date), except where the
               failure of such representations and warranties to be so
               true and correct (without giving effect to any limitation
               as to "materiality," or "material adverse effect" set
               forth therein) does not have, and is not likely to have,
               individually or in the aggregate, a material adverse
               effect on CUC; provided, that the representations and
               warranties of CUC set forth in Sections 3.2(i), (j)(iii),
               (j)(iv) and (j)(v) and (s) shall nonetheless be deemed
               true and correct at and as of the Closing Date regardless
               of changes therein caused by an acquisition permitted by
               4.1(b)(iv) or by the incurrence of indebtedness permitted
               by 4.1(b)(vii), except to the extent that such changes
               have, or could reasonably be expected to have, a material
               adverse effect on CUC.

                         (b)   Performance of Obligations of CUC.  CUC
               shall have performed in all material respects all
               obligations required to be performed by it under this
               Agreement at or prior to the Closing Date.

                         (c)   Tax Opinions.  HFS shall have received
               from Skadden, Arps, Slate, Meagher & Flom LLP, counsel to
               HFS, on a date immediately prior to the mailing of the
               Joint Proxy Statement and on the Closing Date, opinions,
               in each case dated as of such respective dates, to the
               effect that: (i) the Merger will constitute a
               "reorganization" within the meaning of Section 368(a) of
               the Code, and CUC and HFS will each be a party to such
               reorganization within the meaning of Section 368(b) of
               the Code; (ii) no gain or loss will be recognized by CUC
               or HFS as a result of the Merger; (iii) no gain or loss
               will be recognized by the stockholders of HFS upon the
               exchange of their shares of HFS Common Stock solely for
               shares of CUC Common Stock pursuant to the Merger, except
               with respect to cash, if any, received in lieu of
               fractional shares of CUC Common Stock; (iv) the aggregate
               tax basis of the shares of CUC Common Stock received
               solely in exchange for shares of HFS Common Stock
               pursuant to the Merger (including fractional shares or
               CUC Common Stock for which cash is received) will be the
               same as the aggregate tax basis of the shares of HFS
               Common Stock exchanged therefor; and (v) the holding
               period for shares of CUC Common Stock received in
               exchange for shares of HFS Common Stock pursuant to the
               Merger will include the holding period of the shares of
               HFS Common Stock exchanged therefor, provided such shares
               of HFS Common Stock were held as capital assets by the
               stockholder at the Effective Time.  In rendering such
               opinions, counsel for HFS shall be entitled to rely upon
               representations of officers of CUC, HFS and stockholders
               of HFS substantially in the form of Exhibits D and E
               hereto.

                         (d)   No Material Adverse Change.  At any time
               after the date of this Agreement there shall not have
               occurred any material adverse change relating to CUC.

                         SECTION 6.4.  Frustration of Closing
               Conditions.  Neither CUC nor HFS may rely on the failure
               of any condition set forth in Section 6.1, 6.2 or 6.3, as
               the case may be, to be satisfied if such failure was
               caused by such party's failure to use best efforts to
               consummate the Merger and the other transactions
               contemplated by this Agreement, as required by and
               subject to Section 5.5.

                                      ARTICLE VII

                           TERMINATION, AMENDMENT AND WAIVER

                         SECTION 7.1.  Termination.  This Agreement may
               be terminated at any time prior to the Effective Time,
               and (except in the case of 7.1(d) or 7.1(f)) whether
               before or after the HFS Stockholder Approval or the CUC
               Stockholder Approval:

                         (a)   by mutual written consent of CUC and
               HFS;

                         (b)   by either CUC or HFS:

                               (i)      if the Merger shall not have
                    been consummated by December 31, 1997, provided,
                    however, that the right to terminate this Agreement
                    pursuant to this Section 7.1(b)(i) shall not be
                    available to any party whose failure to perform any
                    of its obligations under this Agreement results in
                    the failure of the Merger to be consummated by such
                    time; provided, however, that this Agreement may be
                    extended not more than 30 days by either party by
                    written notice to the other party if the Merger
                    shall not have been consummated as a direct result
                    of CUC or HFS having failed to receive all
                    regulatory approvals required to be obtained with
                    respect to the Merger.

                               (ii)     if the HFS Stockholder Approval
                    shall not have been obtained at an HFS Stockholders
                    Meeting duly convened therefor or at any adjournment
                    or postponement thereof;

                               (iii)  if the CUC Stockholder Approval
                    shall not have been obtained at a CUC Stockholders
                    Meeting duly convened therefor or at any adjournment
                    or postponement thereof; or

                               (iv)     if any Restraint having any of
                    the effects set forth in Section 6.1(d) shall be in
                    effect and shall have become final and
                    nonappealable; provided, that the party seeking to
                    terminate this Agreement pursuant to this Section
                    7.1(b)(iv) shall have used best efforts to prevent
                    the entry of and to remove such Restraint;

                         (c)   by CUC, if HFS shall have breached or
               failed to perform in any material respect any of its
               representations, warranties, covenants or other
               agreements contained in this Agreement, which breach or
               failure to perform (A) would give rise to the failure of
               a condition set forth in Section 6.2(a) or (b), and (B)
               is incapable of being cured by HFS or is not cured within
               45 days of written notice thereof;

                         (d)   prior to receipt of the CUC Stockholder
               Approval, by CUC in accordance with Section 4.3(b);
               provided that, in order for the termination of this
               Agreement pursuant to this paragraph (d) to be deemed
               effective, CUC shall have complied with all provisions
               contained in Section 4.3, including the notice provisions
               therein, and with applicable requirements, including the
               payment of the Termination Fee, of Section 5.9;

                         (e)   by HFS, if CUC shall have breached or
               failed to perform in any material respect any of its
               representations, warranties, covenants or other
               agreements contained in this Agreement, which breach or
               failure to perform (A) would give rise to the failure of
               a condition set forth in Section 6.3(a) or (b), and (B)
               is incapable of being cured by CUC or is not cured within
               45 days of written notice thereof; or

                         (f)   prior to receipt of the HFS Stockholder
               Approval, by HFS in accordance with Section 4.2(b);
               provided that, in order for the termination of this
               Agreement pursuant to this paragraph (f) to be deemed
               effective, HFS shall have complied with all provisions of
               Section 4.2, including the notice provisions therein, and
               with applicable requirements, including the payment of
               the Termination Fee, of Section 5.9.

                         SECTION 7.2.  Effect of Termination.  In the
               event of termination of this Agreement by either HFS or
               CUC as provided in Section 7.1, this Agreement shall
               forthwith become void and have no effect, without any
               liability or obligation on the part of CUC or HFS, other
               than the provisions of Section 3.1(o), Section 3.2(o),
               the last sentence of Section 5.4, Section 5.9, this
               Section 7.2 and Article VIII, which provisions survive
               such termination, and except to the extent that such
               termination results from the willful and material breach
               by a party of any of its representations, warranties,
               covenants or agreements set forth in this Agreement.

                         SECTION 7.3.  Amendment.  This Agreement may be
               amended by the parties at any time before or after the
               HFS Stockholder Approval or the CUC Stockholder Approval;
               provided, however, that after any such approval, there
               shall not be made any amendment that by law requires
               further approval by the stockholders of HFS or CUC
               without the further approval of such stockholders.  This
               Agreement may not be amended except by an instrument in
               writing signed on behalf of each of the parties.

                         SECTION 7.4.  Extension; Waiver.  At any time
               prior to the Effective Time, a party may (a) extend the
               time for the performance of any of the obligations or
               other acts of the other parties, (b) waive any
               inaccuracies in the representations and warranties of the
               other parties contained in this Agreement or in any
               document delivered pursuant to this Agreement or (c)
               subject to the proviso of Section 7.3, waive compliance
               by the other party with any of the agreements or
               conditions contained in this Agreement.  Any agreement on
               the part of a party to any such extension or waiver shall
               be valid only if set forth in an instrument in writing
               signed on behalf of such party.  The failure of any party
               to this Agreement to assert any of its rights under this
               Agreement or otherwise shall not constitute a waiver of
               such rights.

                         SECTION 7.5.  Procedure for Termination,
               Amendment, Extension or Waiver.  A termination of this
               Agreement pursuant to Section 7.1, an amendment of this
               Agreement pursuant to Section 7.3 or an extension or
               waiver pursuant to Section 7.4 shall, in order to be
               effective, require, in the case of CUC or HFS, action by
               its Board of Directors or, with respect to any amendment
               to this Agreement, the duly authorized committee of its
               Board of Directors to the extent permitted by law.

                                      ARTICLE VIII

                                   GENERAL PROVISIONS

                         SECTION 8.1.  Nonsurvival of Representations
               and Warranties.  None of the representations and
               warranties in this Agreement or in any instrument
               delivered pursuant to this Agreement shall survive the
               Effective Time.  This Section 8.1 shall not limit any
               covenant or agreement of the parties which by its terms
               contemplates performance after the Effective Time.

                         SECTION 8.2.  Notices.  All notices, requests,
               claims, demands and other communications under this
               Agreement shall be in writing and shall be deemed given
               if delivered personally, telecopied (which is confirmed)
               or sent by overnight courier (providing proof of
               delivery) to the parties at the following addresses (or
               at such other address for a party as shall be specified
               by like notice):

                         (a)  if to CUC, to

                         CUC International Inc.
                         707 Summer Street
                         P.O. Box 10049
                         Stamford, Connecticut 06901
                         Telecopy No: (203) 348-4528
                         Attention:  General Counsel

                         with a copy to:

                         Wachtell, Lipton, Rosen & Katz
                         51 West 52 Street
                         New York, New York 10019
                         Telecopy No.: (212) 403-1000
                         Attention:  Patricia Vlahakis

                         (b)  if to HFS, to

                         HFS Incorporated
                         6 Sylvan Way
                         Parsippany, New Jersey 07054
                         Telecopy No. (201) 428-2280
                         Attention:  General Counsel

                         with a copy to:

                         Skadden, Arps, Slate, Meagher & Flom LLP
                         919 Third Avenue
                         New York, New York 10022
                         Telecopy No.:  (212) 735-2000
                         Attention:  David Fox

                         SECTION 8.3.  Definitions.  For purposes of
               this Agreement:

                         (a)   except for purposes of Section 5.11, an
               "affiliate" of any person means another person that
               directly or indirectly, through one or more
               intermediaries, controls, is controlled by, or is under
               common control with, such first person, where "control"
               means the possession, directly or indirectly, of the
               power to direct or cause the direction of the management
               policies of a person, whether through the ownership of
               voting securities, by contract, as trustee or executor,
               or otherwise;

                         (b)   "material adverse change" or "material
               adverse effect" means, when used in connection with HFS
               or CUC, any change, effect, event, occurrence or state of
               facts that is, or would reasonably be expected to be,
               materially adverse to the business, financial condition
               or results of operations of such party and its
               subsidiaries taken as a whole; and the terms "material"
               and "materially" have correlative meanings;

                         (c)   "person" means an individual,
               corporation, partnership, limited liability company,
               joint venture, association, trust, unincorporated
               organization or other entity;

                         (d)   a "subsidiary" of any person means
               another person, an amount of the voting securities, other
               voting ownership or voting partnership interests of which
               is sufficient to elect at least a majority of its Board
               of Directors or other governing body (or, if there are no
               such voting interests, 50% or more of the equity
               interests of which) is owned directly or indirectly by
               such first person and includes, in the case of HFS, all
               corporations conducting the car rental operation of Avis
               Inc. (referred to as "ARAC" in HFS's Annual Report on
               Form 10-K for the year ended December 31, 1996) which
               are: Rental Car System Holdings, Inc. and its
               subsidiaries (including the corporate operations of Avis,
               Inc. and Prime Vehicles Trust, Avis International, Ltd.
               and subsidiaries, Avis Enterprises, Inc. and
               subsidiaries, Pathfinder Insurance Company and Global
               Excess & Reinsurance Ltd.); and

                         (e)   "knowledge" of any person which is not
               an individual means the knowledge of such person's
               executive officers or senior management of such person's
               operating divisions and segments, in each case after
               reasonable inquiry.

                         SECTION 8.4.  Interpretation.  When a reference
               is made in this Agreement to an Article, Section or
               Exhibit, such reference shall be to an Article or Section
               of, or an Exhibit to, this Agreement unless otherwise
               indicated.  The table of contents and headings contained
               in this Agreement are for reference purposes only and
               shall not affect in any way the meaning or interpretation
               of this Agreement.  Whenever the words "include",
               "includes" or "including" are used in this Agreement,
               they shall be deemed to be followed by the words "without
               limitation".  The words "hereof", "herein" and
               "hereunder" and words of similar import when used in this
               Agreement shall refer to this Agreement as a whole and
               not to any particular provision of this Agreement.  All
               terms defined in this Agreement shall have the defined
               meanings when used in any certificate or other document
               made or delivered pursuant hereto unless otherwise
               defined therein.  The definitions contained in this
               Agreement are applicable to the singular as well as the
               plural forms of such terms and to the masculine as well
               as to the feminine and neuter genders of such term.  Any
               agreement, instrument or statute defined or referred to
               herein or in any agreement or instrument that is referred
               to herein means such agreement, instrument or statute as
               from time to time amended, modified or supplemented,
               including (in the case of agreements or instruments) by
               waiver or consent and (in the case of statutes) by
               succession of comparable successor statutes and
               references to all attachments thereto and instruments
               incorporated therein.  References to a person are also to
               its permitted successors and assigns.

                         SECTION 8.5.  Counterparts.  This Agreement may
               be executed in one or more counterparts, all of which
               shall be considered one and the same agreement and shall
               become effective when one or more counterparts have been
               signed by each of the parties and delivered to the other
               parties.

                         SECTION 8.6.  Entire Agreement; No Third-Party
               Beneficiaries.  This Agreement (including the documents
               and instruments referred to herein) and the
               Confidentiality Agreement (a) constitute the entire
               agreement, and supersede all prior agreements and
               understandings, both written and oral, between the
               parties with respect to the subject matter of this
               Agreement and (b) except for the provisions of Article
               II, Section 5.6 and Section 5.8, are not intended to
               confer upon any person other than the parties any rights
               or remedies.

                         SECTION 8.7.  Governing Law.  This Agreement
               shall be governed by, and construed in accordance with,
               the laws of the State of Delaware, regardless of the laws
               that might otherwise govern under applicable principles
               of conflict of laws thereof.

                         SECTION 8.8.  Assignment.  Neither this
               Agreement nor any of the rights, interests or obligations
               under this Agreement shall be assigned, in whole or in
               part, by operation of law or otherwise by either of the
               parties hereto without the prior written consent of the
               other party.  Any assignment in violation of the
               preceding sentence shall be void.  Subject to the
               preceding two sentences, this Agreement will be binding
               upon, inure to the benefit of, and be enforceable by, the
               parties and their respective successors and assigns.

                         SECTION 8.9.  Consent to Jurisdiction.  Each of
               the parties hereto (a) consents to submit itself to the
               personal jurisdiction of any federal court located in the
               State of Delaware or any Delaware state court in the
               event any dispute arises out of this Agreement or any of
               the transactions contemplated by this Agreement, (b)
               agrees that it will not attempt to deny or defeat such
               personal jurisdiction by motion or other request for
               leave from any such court, and (c) agrees that it will
               not bring any action relating to this Agreement or any of
               the transactions contemplated by this Agreement in any
               court other than a federal court sitting in the State of
               Delaware or a Delaware state court.

                         SECTION 8.10.  Headings.  The headings
               contained in this Agreement are for reference purposes
               only and shall not affect in any way the meaning or
               interpretation of this Agreement.

                         SECTION 8.11.  Severability.  If any term or
               other provision of this Agreement is invalid, illegal or
               incapable of being enforced by any rule of law or public
               policy, all other conditions and provisions of this
               Agreement shall nevertheless remain in full force and
               effect.  Upon such determination that any term or other
               provision is invalid, illegal or incapable of being
               enforced, the parties hereto shall negotiate in good
               faith to modify this Agreement so as to effect the
               original intent of the parties as closely as possible to
               the fullest extent permitted by applicable law in an
               acceptable manner to the end that the transactions
               contemplated hereby are fulfilled to the extent possible.

                         IN WITNESS WHEREOF, CUC and HFS have caused
               this Agreement to be signed by their respective officers
               thereunto duly authorized, all as of the date first
               written above.

                                   CUC INTERNATIONAL INC.

                                   By /s/ E. Kirk Shelton               
                                     E. Kirk Shelton
                                     President and Chief Operating
                                     Officer

                                   HFS INCORPORATED

                                   By /s/ Henry R. Silverman            
                                     Henry R. Silverman
                                     Chairman and Chief Executive
                                     Officer