If the "Windows XP ( Service Pack 2)" choice doesn't work, just click
the dropdown arrow and try one of the others.

The game default install location is "C:\Sierra\Viper Racing".
If you have a 64 bit system it still should work from the above.
If it doesn't, drag the Sierra folder to "C:\Program Files (x86)" folder.
Reinstall the game to that location if dragging or cut / paste wasn't allowed.
Click here to go back to my Viper Racing home page