I need help with using Alcohol to mount my PC games

Ive recently acquired a great game(I dont really know its great because i never actually got the chance to sit down and play it) Ive been kinda busy trying to keep my younger siblings from destroying it, I know how to use Alcohol and ive used it in the past but on this recent game (The elder Scrolls Oblivion 4) it for some reason just wont work, ive already mounted it, and installed it, but when i attempt to run the program on the computer without the CD in it for some reason wont work, can someone please offer some kind of advice or guidance
thanks ahead of time

Try with YASU.

thanks for the suggestion ill try it right away