After many successful startups, today suddenly I've received the message: "Visual Assist was unable to find a system include path. Press ok to add an include path manually." I happened after changing the platform to Custom, according to Support recommendation (because of the other bug reported here). After the above message directories for Custom platform were empty, so I switched the platform back to Win32. I'm not sure I understand what does switching platforms mean to VA X.
I've read those topics, but the difference is (I forgot to mention) I'm using VS 6.0 not VS.Net, and I'm not using any variables like $(VCInstallDir) in my dirs.