We were given a trial sample of "RoundPro" at the Fed show a couple of weeks ago.
Usual thing: try for a month, then sign up if you like it.
None of the accompanying literature mentions system compatibility requirements, nor did the salesman specify a minimum operating system requirement.
We are still using Windows98SE - it works for us, so we've never bothered to change.
Installing the trial CD resulted in a completely corrupted computer, to the point where it seemed more sensible to replace than to rebuild.
The publishers refused to acknowledge any responsibility, claiming that we were told it was suitable only for WindowsXP.
Obviously it's their word against ours, but anyone considering installing RoundPro be warned if you are operating anything earlier than XP you could have terminal problems!!
Cheers,
Ian