August 2014
I was playing this game in the morning. Tried to play it again this afternoon and it now says
This application is not compatible with the installed operating system.
Please upgrade to Windows 98SE, Windows 2000 or better.
Why?
August 2014
Please make sure that your Windows is up to date (run Windows Update) and that Origin is not running in compatibility mode (close Origin, right click on an Origin shortcut, go to Properties - compatibility and make sure that Run in Comp. Mode is unticked).
June 2017
this has not fixed my game, I was just playing it and when I reloaded it it came up with this same error.
June 2017
Have you tried running the actual game executable in compatibility mode?