It doesn't actually disable programs, it recognizes them as Switch documents and "takes over."
I believe you have something there about the naming of programs that "triggers" the bug. Along with "Adobe Photoshop 7.0" and "Adobe Image Ready 7.0" I just found out that my (classic) "Street Atlas USA 6.0" got the G clef icon. I think it is the ".0" at the end that is the culprit.