Re: I can't install sims3 from cdrom onto xp
@MarianneSparkle The version of Origin that worked on XP was sunset in January 2020. It won't even completely install, let alone work.
Regardless, please check to see whether you have a TS3w.exe within the game's program files. It should be in ...The Sims 3\Game\Bin. If you do have it, you should be able to launch the game by double-clicking on it. Please let me know whether this works.
If it doesn't, or you don't have the file, how old is your Sims 3 base game disc? The year is fine; you can see it (the copyright date) in the fine print on the back of the box.