This is the setup package for Games for Windows - LIVE v3.5. The package installs the Games for Windows - LIVE Redistributable that enables the in-game experience as well as the Games for Windows - LIVE Client that enables the out-of-game experience. Additionally, users have access to the Games for Windows - LIVE Marketplace. Note: If you receive a sign-in error (code 8015403a), go to live.XBOX.COM and agree to their change of terms. Once agree, the error will no longer appear. System Requirements: Supported Operating Systems: Windows 7; Windows Vista; Windows XP Service Pack 3 Broadband connection to the Internet Windows LIVE ID download http://cur.lv/4e9fq