; requires Windows 2000; Windows Server 2003 Service Pack 1 for Itanium-based Systems; Windows Server 2003 x64 editions; Windows Server 2008 Datacenter; Windows Server 2008 Enterprise; Windows Server 2008 for Itanium-based Systems; Windows Server 2008 Standard; Windows Vista Business; Windows Vista Enterprise; Windows Vista Home Basic; Windows Vista Home Premium; Windows Vista Starter; Windows Vista Ultimate; Windows XP; Windows XP Professional x64 Edition; Windows NT 4.0 Service Pack 6a