I purchased RKS program several years ago. I also purchased a Zoom 56k USB modem series 1063. I've re-installed RKS Fax program and now get an error message:
THIS IS AN UNSUPPORTED VERSION OF WINDOWS, PRINTER WILL NOT BE INSTALLED.
RKS (version 1.50) was running on my Windows 7 64 bit & my new modem works with Windows Fax & Scan program. I like using RKS FAX, not Windows Fax.