“The Windows Support Tools for Microsoft Windows XP are intended for use by Microsoft support personnel and experienced users to assist in diagnosing and resolving computer problems. For individual tool descriptions, see the Windows Support Tools documentation (Suptools.chm). The Windows Support Tools for Windows XP can be installed only on a computer that is running the Windows XP operating system. The Windows Support Tools for Windows XP cannot be used to upgrade Microsoft Windows NT or Microsoft Windows 2000 Support Tools installed on Windows NT or Windows 2000.”