I've not yet tried my Win7 computer with the Pactor II pro
modem, but as the
modem / computer connection is via a
serial port, there shouldn't be a big issue. If your original setup used a RS232/USB adaptor you may find that you need a new adaptor that is compatible with WIn7 (Win7-64bit broke a lot of
serial adaptors). The newer adaptors will be compatible. You may be able to find a driver update, but definitely not for all adaptors.
If your old computer was using a native
RS232 connection, you will need a compatible RS232/USB adaptor.