I have managed to get a few customers to run the InterForm400 graphical designer on a PC running a 64bit Windows 7, and now I am running it myself as well. Some have reported a problem related to this, but these cases have been solved after uninstalling any 32bit Java Runtime Environment and installing a 64bit version instead.

So I just want to let you know: Yes, the designer (and SwiftView) runs fine on 64bit Windows7 and I can prove it ;-)