Yeah, I never got it to work. So I may have procured the game by other means and it works perfectly. Since I legally bought the game, I'm not feeling too guilty.
I bought RCT2 earlier today and haven't been able to get it to work on Windows 7 Home Premium 64-bit. There seems to be a torrent of the game that works on Windows 7 so I'm hoping it's not a completely lost cause.