I have sims 2 on a dvd cd, and it doesnt open up as autorun on my computer, which doesnt let me install the files

however, when i do insert the cd into the drive - it does open what is contained in the cd - and whenever i click on the "autorun" or any file - it says "win32 nto applicable" or something in those terms

i tried the cd in my cousins computer - and worked perfect! it opened an autorun menu when i inserted the cd into the computer, and even had a lil sims 2 logo in the my computer window - under his cd drive icon

but for some reason my computer does not detect it as an autorun type game, and doesnt work?!?!

help!!! thank you so much, and your help would be very much appreciated!