[H] InstallShield issues

[Thane Sherrington]

I have a machine with about six games (several of the BattleField 
series) on it that won't uninstall - when I try through Add/Remove 
programs, it acts as if I want to install them and asks for the CD 
key.  The CDs are gone so I can't install and then uninstall - is 
there a way to simply manually uninstall these games, or should I 
just tear out the registry entries and delete the folders?

T