Windows Server 2000,2003 and 2008, DNS, DHCP, TCP/IP, IIS, Active Directory, Networking, Citrix Presentation and XenApp Servers, Shavlik Patching software, Backup.exe, of VMware VSphere 4.0, 4.1 and 5.0, Symantec antivirus, MacAfee antivirus. Teaming of Nic, Network Printers, Raid, ILO, Hp SIM, Oasis monitoring tool, Remedy Ticketing, NetApp, TSM.