Microsoft Games for Windows  3.5.0050.0
Microsoft and some of the gaming industry's biggest names have worked together to make the gaming experience on Windows better than ever. And Games for Windows is the result. The Games for Windows brand on games means four key things:
Quality. Games for Windows branded titles undergo extensive testing, and not just by the publisher. Microsoft also invests in quality checking each title to ensure they meet performance and reliability standards.
Compatibility. Games for Windows branded titles work on Windows XP, Windows Vista, and Windows 7-based PCs, including both 32 and 64 bit editions.
Safety features. You can be confident that any title carrying the Games for Windows brand supports parental controls and family settings features in Windows Vista and Windows 7.
Easy to Play. Games for Windows branded titles are easy to install, find and remove, especially in Windows Vista and Windows 7.