Although this product claims to be XP-compatible, it doesn't really work unless you first change your system settings to run in Windows 98 compatibility mode, and set virtual memory settings back to 200MB. Even though the outer box says Windows XP, copyright dates inside the jewel case make it obvious this is really pre-XP software that has not been updated.Since we use our computer for other things besides games, the only way my son can play is to wait for 5-10 minutes' worth of switching to an admin user account, changing memory settings, then restarting the computer. When he finishes, we have to put the memory settings back again so we can use the computer for other things.