The following may be modified at any time without notice.

      Users that have previously registered SIO can use REREG.EXE to
      transfer the registration information to a new version of SIO. 
      Simply unzip the new SIO files into a temporary directory, change
      to that directory, execute REREG and answer the questions.  After
      doing the above, all of the files in the temporary directory will
      have been registered.  You must then copy all the SYS and EXE
      files from the temporary directory to their normal directory
      (overlaying the old registered version).  Then you must reboot. 
      You may also want to check your CONFIG.SYS for the path of the
      SIO/VSIO being loaded and make sure both the new ones are being
      loaded.

      If REREG will not transfer your registration information from a
      previous version of SIO to the new version, then an upgrade must
      be ordered on disk.

      If:
           1 - You have an Internet address or CompuServe address
           2 - You can accept uuencoded files (if Internet)
           3 - You registered SIO for more than 4 ports

      then upgrades will be Emailed to you (upon request) at no charge. 
      It is too expensive to send files via FidoNet.