Helpful tips for those who own RCT1 and prefer it to 2 (because you like changing up the carts/track type without having to rebuild the ride). In order to get it to run on Vista, Windows 7 (or XP, I guess, because you still use that???) you need to follow these steps. Or else you will get "ERROR: ACCESS VIOLATION" all up in your dick.
1) Install the game as normal.
2) Install the expansions as normal.
3) Get the patch and install it.
US version only -
http://www.shacknews.com/file/303/rollercoaster-tycoon-us-patch-v108187UK or US version -
http://www.gamespot.com/rollercoaster-tycoon-loopy-landscapes/downloads/platform/pc/4) Enjoy game without having to derp around and run it as administrator and make it have special settings. IMO, it works better with the patch than just with all of the settings changed.