We installed WinFax Pro on four computers (to gather some sort of information about compatibility) but did the main testing and review on a Pentium III/333 with 512MB RAM running Windows 2000 Professional.
Fax Sharing is essentially a beefed-up network fax function which allows anyone (with permissions) on a network to send documents for faxing to another PC with a connected modem running WinFax Pro. There's now a fax preview window with thumbnail views, high resolution fax transmission (laser quality as Symantec calls it), send preview integrated into the Message Manager so you can get a final look at the fax layout just before sending it (which is very handy when you've gathered half a dozen faxes to send and can't remember which one is which). But new features and improvements abound in v9 you just have to look for them.
The user interface (UI) hasn't changed much, which is too bad considering the non-intuitive UI legacy from the late '90s left behind by Delrina. Under the covers, WinFax Pro v9 is a lot different from v8. Whither thou goest, so shall we follow (or words to that effect say the hordes of loyal users), and version 9 has been wildly popular, particularly in light of the broken and odd faxing that Microsoft has built into Windows. But in the end (after Delrina was acquired by Symantec), there remained a few more things which could be shoved into the already powerful package-hence versions 7, 8 & 9. The more people demanded, the more Delrina put into the software. It's widely used software, WinFax Pro, contained all of the features and functions any faxer could possibly want. The old Delrina Corporation created a vast horde of PC fax users. MSRP: US$99.00 (Ed Note: Winfax 10 is currently available) Requires: Pentium processor, Windows 95, 98, 95, NT or later, 32MB RAM, 57MB free hard disk space, fax modem (Class 1, 2 or 2.0) CAS compatible or fax capable CAPI 2.0 ISDN board