To register the Software, please complete and send the form below, along
    with your payment to:
                                                   F.M. de Monasterio
                                                   P.O. Box 219
                                                   Cabin John, MD 20818-0219
                                                   U.S.A.
    PAYMENT TERMS

    1. Payment must cover registration or upgrade fees and the corresponding
       shipping costs:  To cover postage and handling, add $1.50 to the fees
       of orders from the U.S., $2.50 from Canada and Mexico, and $3.50 from
       any other country.

    2. Purchase orders for site licenses are accepted from U.S. corporations
       or federal/state goverment agencies.  Such orders must be paid within
       30 days of receiving the items (net 30).

    3. Other U.S. registration orders must be prepaid with a check or money
       order.  Please do not send cash.

    4. All foreign registration orders must be prepaid in U.S. dollars drawn
       on a U.S. bank or financial institution; otherwise, please enclose an
       additional $6.00 to defray actual bank charges for processing foreign
       checks.  Orders not complying with this request will not be accepted.
		  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


    DELIVERY TERMS

    1. All orders are shipped first-class air mail.

    2. Delivery may take a minimum of 4 to 6 weeks.

    3. If the CPU/hardware program configuration is not specified (see below)
       the most general configuration available shall be shipped.

                                  * * * * * *
    PLEASE NOTE:

  * Only when UPGRADING send a self-addressed, stamped diskette mailer with an
    already formatted 360-kb diskette. (Other diskettes will not be returned.)
    FOREIGN UPGRADE ORDERS: Please enclose international mail coupons (coupon-
    r‚ponse international) covering the postage fees, or enclose $2.50 (Canada
    and Mexico) to $3.50 (other countries).

  * Indicate whether a 086, 286, or 386-CPU version is needed. The 086 version
    works with any 80x86 CPU, the 286 version works with 80286 or higher CPUs,
    and the 386 version works with 80386 or higher CPUs.


                  [Mail the completed page below with your order]

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    REGISTRATION/UPGRADE ORDER - Please check the appropriate items


                            SINGLE-USER/MACHINE LICENSE

   __ Registration of 086, 286 or 386 xDISK receiving the latest version
      on a 360-kb diskette (mailed first-class) ...................... $20.00


                              10-MACHINE SITE LICENSE

   __ Registration of 086, 286 or 386 xDISK receiving the latest version
      on a 360-kb diskette (mailed first-class) ...................... $65.00

      NOTE:  Discounts are available for site license fees covering more than
             50 machines (please include your daytime/work phone number).


                                  VERSION UPGRADE

      Registration number:__________   Program CPU/Version number:___________

      Registered name:_______________________________________________________


   __ Registered-user upgrade within major version, mailed on a user-
      provided, 360-kb diskette and SASE mailer ...................... GRATIS

   __ Registered-user upgrade from a prior major version, mailed on a
      user-provided, 360-kb diskette and SASE mailer ................. $ 5.00


         ** PLEASE PRINT LEGIBLY - THE NAME IS INCORPORATED IN THE CODE **

    User/Site Name:  ________________________________________________________

          Address:   ________________________________________________________

                     ________________________________________________________

    State/Province:  ________________________________________________________

    ZipCode/Country: ____________________    Daytime phone: [____]___________


    INDICATE CONFIGURATION NEEDED:                               [xDISK 3.00]

             086+ version ___
             286+ version ___
             386+ version ___

    CPU/Computer system: ____________________________________________________

    Comments/Instructions: __________________________________________________

    _________________________________________________________________________