Windows Server 2003 R2 is the successor to the simply named Windows Server 2003. It is essentially just an update to the original version. The R2 update was released in December of 2005.

Windows SharePoint Services offer several products such as, Windows, Windows Server, System Center, Internet Explorer, Office, Office 365, Exchange Server, and SQL Server.

CAPSTONE is a tough class man! Software Update Services (SUS) was a tool for centralizing the update of Microsoft Windows systems in a network, developed by Microsoft. SUS works on a server and downloads updates for the specified versions of Windows from the remote Windows Update site, operated by Microsoft. The clients can then download updates from this internal server, rather than connecting directly to Windows Update. This simplifies the management of updates and saves bandwidth. http://en.wikipedia.org/wiki/Software_Update_Services

Windows Server Update Services,enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers in a corporate environment. WSUS downloads these updates from the Microsoft Update website and then distributes them to computers on a network. WSUS runs on Windows Server and is free to licensed Microsoft customers.

WSUS stands for Windows Server Update Services and is allows for the distribution of updates and fixes and patches for Microsoft products in an enterprise or corporate setting.