I had the same problem with commando's 3. When you install something with the install shield some games add a map in c:\program files\InstallShield Installation Information.
In each map in the c:\program files\InstallShield Installation there is a setup file. Try running those, if one of those is a setup file of the game you can't install, you can delete the map containing it.(Beware you don't delete other stuff, because your computer wil get messed up)
Good luck