Our Company provides support for the following operating systems : MS-DOS, Windows 3.1, Windows for Workgroups 3.11, Windows 95, Windows 98, Windows ME, Windows NT 3.51, Windows NT 4.0, Windows 2000 Professional, Windows 2000 Server,Windows XP Home, Windows XP Professional, Windows 2003 Server, Windows 2003 Small Business Server, Windows Vista, Windows 7, Exchange 2000, Exchange 2003, Exchange 2007. Our Company provides support for the following Products: Zywall Routers, Watchguard Routers, Draytek Routers, Nortel CICS Phone Systems, Nortel MICS Phone Systems, all major brands of computers, all networking needs including testing and certification of wire (Cat 5e, Cat 6 and Fiber Optics). .