Yes I can confirm it works, it returns "Microsoft Windows XP" on this system. No indication of 32/64bit but it's probably only worthwhile making the distinction for Vista and 7, there's going to be barely anyone on XP64 and server users will be a minority.

Thanks again for your time on this, such a database will be invaluable to so many people.

I've experimented with APITrace (commented on in my first responce) and it's quite in-depth, it might be a bit of a pain to parse the info (if it was a good idea)

--

Does anybody reading know of any other 'pass-through' tools that log the GL calls made by an application?