EXHIBIT 4.7 JOINDER AGREEMENT

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                                                                     EXHIBIT 4.7

                                JOINDER AGREEMENT

          WHEREAS, Sunshine Acquisition II, Inc. ("Sunshine") and the Initial
Purchasers named therein (the "Initial Purchasers") heretofore executed and
delivered a Purchase Agreement, dated November 17, 2005 (the "Purchase
Agreement"), providing for the issuance and sale of the Notes (as defined
therein); and

          WHEREAS, as a condition to the consummation of the offering of the
Notes, SS&C Technologies, Inc. (the "Company") and each Guarantor (as defined in
the Purchase Agreement) that was originally not a party thereto has agreed to
join in the Purchase Agreement on the Closing Date.

          Capitalized terms used herein and not otherwise defined herein shall
have the meanings ascribed to such terms in the Purchase Agreement.

          NOW, THEREFORE, the Company and each Guarantor hereby agrees for the
benefit of the Initial Purchasers, as follows:

           1. Joinder. Each of the undersigned hereby acknowledges that it has
received and reviewed a copy of the Purchase Agreement and all other documents
it deems fit to enter into this Joinder Agreement (the "Joinder Agreement"), and
acknowledges and agrees to (i) join and become a party to the Purchase Agreement
as indicated by its signature below; (ii) be bound by all covenants, agreements,
representations, warranties and acknowledgments attributable to the Company or
the Guarantors, as applicable, in the Purchase Agreement as if made by, and with
respect to, each signatory hereto; and (iii) perform all obligations and duties
required of the Company or the Guarantors, as applicable, pursuant to the
Purchase Agreement.

          2. Representations and Warranties and Agreements of the Com