REGISTRATION/ORDERING INFORMATION

          Registering users will receive the SIO Technical Reference Manual
          with their registered version of SIO.  The Technical Reference
          Manual is available only to registered SIO users.

          A SIO/VSIO/VX00 registration licenses you to use the product on a
          regular basis.  Individual users need register only one copy of
          SIO/VSIO/VX00 for personal use;  registration includes licensed
          use of all upgrades to the major version number registered.  When
          the major version number changes, say from 1.55 to 2.00, you must
          re-register (pay up again).  Upgrades are NOT automatically sent
          to registered users.  See LICENSE.TXT for additional information.

          The registration fee covers only the use of the program.

          Please use the registration form (below) to send in your
          registration fee. 

          For support information, see the Users Manual (SIOUSER.TXT).

                           Corporate and Quantity Purchases

          All corporate, business, government or other commercial users of
          SIO/VSIO/VX00 must be registered.  We offer quantity discounts
          starting at the eleventh copy.  Corporate or site licensing is
          also available.

          Licensing agreements allow duplication and distribution of
          specific numbers of copies within the licensed institution. 
          Duplication of multiple copies is not allowed except through
          execution of a licensing agreement.

          The quantity discounts are as follows: 
           
               00 - 10 copies:     no discount 
               11 - 25 copies:     15% discount 
               26 - 50 copies:     20% discount 
               51 - 100 copies:    25% discount 
               101+ copies:        30% discount 
           
          ALL PRICES AND DISCOUNTS ARE SUBJECT TO CHANGE WITHOUT NOTICE. 
          Discounts are not cumulative; they apply to single orders of like
          products only. Unit prices are the same as for individual users.  

          YOU MUST REGISTER SIO/VSIO/VX00 TO USE THEM WITHIN YOUR
          ORGANIZATION. 


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                                  REGISTRATION FORM


          Purchase orders requiring invoicing for payment are not accepted. 
          You must include a check or a valid credit card number.

          Checks must be from a US BANK and in US DOLLARS.  Please make
          checks payable to:

          The Software Division

          Send to:            The Software Division
                              Attn. Raymond L. Gwinn
                              12469 Cavalier Dr.
                              Woodbridge, Va. 22192

          Credit card registrations may be FAXed or EMAILed to the
          following:

                             Voice Orders 1-703-494-4673
                                  FAX 1-703-494-0595
                                 CompuServe 71154,575
                             InterNet p00321@psilink.com


          SIO/VSIO/VX00 Registration ................... $ 25.00  $ ______
               (Sent on 3.5" disk or email), 4 ports supported.

          SIO/VSIO/VX00 Registration ................... $ 45.00  $ ______
               (Sent on 3.5" disk or email), 6 ports supported.

          _____Ports above 6 ........................ $ 10.00 ea  $ ______
               Maximum of 16 ports supported.

          SIO/VSIO update for registered users ......... $ 10.00  $ ______
               (Sent on 3.5" disk), any number of ports.

          Shipping US and Canada ........................ $ 3.00  $ ______

          Shipping Foreign .............................. $ 7.00  $ ______

          Virginia residents add 4.50% sales tax ................ $ ______

                                                            Total $ ______


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          Please fill out the following carefully so that it is readable.


          Registered user information:

            SIO/VSIO/VX00 Version: 1.20

               Name: ____________________________________________________

            Company: ____________________________________________________

            Address: ____________________________________________________

                   : ____________________________________________________

                   : ____________________________________________________

            Country: ____________________________________________________

            Signature _____________________________________ Date_________

            EMAIL  : ____________________________________________________

            Day Phone: _________________________ Eve:____________________

            FAX    : _____________________ Modem_________________________


               MasterCard ___      Visa ___

               Card # _______________________________   EXP. DATE.________

               Name on the card: _________________________________________

               Issuing Bank: _____________________________________________

          Please note:
          Credit card registrations may be processed by Renex Corporation.