rtcvb32: In windows if it can't find the uninstaller it may still offer to remove the reference of the game/program, although it may not be able to remove saves or anything else it has on hand.
nightcraw1er.488: Good point. I tend to go through at least the following areas and manually delete everything I don’t recognise:
Install folders, I have c:/mygames
Documents
saved Games
%appdata%/local, roaming
You can also check program files/x86.
Unfortunately even with the best uninstall software programs install files everywhere, especially modern games which seem to need things in several different places.
You can always use programs like Primo
http://randy_hall.tripod.com/download.htm You can easilly see what is installed on your PC once you install sth, even when you run the game which folders are created, registry keys etc.
There is also Total uninstall by Martau, fantastic program though not freeware.
Anyway, I delete everything manually and way always able to delete everything. It was a lot harder before regshot existed, now it is piece of cake I would say.