Claude,
Yes everything seems to work if I create the virtual directories manually.
I don't know why WebAppBuilder.app doesn't create them. The feedback I get when I run WebAppBuilder shows that everything went ok, but when I go into the IIS console, no new VD's are there.
But anyway, Thanks! Both for ActiveVFP and for the help. Let me know (here or via email) if I can run any checks for you, etc.