There are any number of reasons why a particular program will not install. Problem is that, with the many and various types of installations, the S/W cannot always be guaranteed to work first time. Of course, with some of these games, the quality of design is likely to be less than perfect so you could have a double whammy. Firstly, I would see if your documentation had any technical support available - thery may have some answers. However, its more likely that your OS has become damage, either over the years since it was first installed or, more likely, when you attempted to install the game. If yo have XP, Ithinkyoushould be able to roll back to a cleaner installation. You could also try SFC if you have it. Otherwise, try re-installing your OS over-the-top. A, filing that, its probably a fresh OS installation.