I had a look at this today and got it working OK. Only problem is that it is disappointingly slow. One end consisted of a 56K S/W modem on a Win98SE PC connected at 48000bps to the Internet. On the other end was my server running 4.1.2 and a 512/128k ADSL connection. A 217k file transferred at 2.4k/sec, which seemed like eternity, and at the time the "Internet" was fairly lively.
Last week I experimented with PCAnywhere 8.0 between 2PCs connected via 56k H/W modems over the Internet and I saw transfer speeds reported between 6-7k/sec, i.e. things happened fairly quickly, including screen redraws.
I guess with more bandwith I would have been impressed. Can someone comment on my findings and maybe even divulge a few "settings".