MZ-Tools Articles Series: HOWTO: Detect installed Visual Studio editions, packages or service packs
My latest article is about guessing the installed Visual Studio versions (2005, 2008), editions (Std, Prof, Team Edition, Team Suite), packages or service packs, either from a setup program or from a running add-in or package:
HOWTO: Detect installed Visual Studio editions, packages or service packs
http://www.mztools.com/articles/2008/MZ2008003.aspx