Windows Server Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing Microsoft Windows Server and related software products. You can find additional definitions by visiting or using the search box below.

  • W

    Windows Process Activation Service (WPAS)

    Windows Process Activation Service (WAS) is a tool for managing worker processes that contain applications that host Windows Communication Foundation (WCF) services. Worker processes handle requests that are sent to a Web Server for specific application pools. Each application pool sets boundaries for the applications it contains.

  • Windows Product Activation (WPA)

    Windows Product Activation (WPA) is the mandatory product registration system included in Microsoft's Windows XP, Office XP, and recent Office products (such as Word 2002 or Excel 2002) as a means of enforcing compliance with the company's End User License Agreement (EULA).

  • Windows Remote Management (WinRM)

    Windows Remote Management (WinRM) is a feature of Windows Vista that allows administrators to remotely run management scripts... (Continued)

  • Windows Server 2008 R2

    Windows Server 2008 R2 is a server operating system developed by Microsoft, which builds on the enhancements built into Windows Server 2008.

  • Windows Server 2012 (WS 2012)

    Windows Server 2012, formerly codenamed Windows Server 8, is the latest version of Windows Server.

  • Windows Server 8

    Windows Server 8 is Microsoft’s next-generation server operating system scheduled for a 2012 release date.

  • Windows Server Backup

    Windows Server Backup is a feature that offers backup and recovery options for Windows Server environments.

  • Windows Server Client Access License (CAL)

    A Windows Server Client Access License (CAL) is a license that gives a user or device the right to access services from a server running the Windows Server operating system.

  • Windows Server Core

    Windows Server Core is a minimal installation option for the Windows Server operating system (OS) that has no GUI and only includes the components required to perform server roles and run applications.

  • Windows Server Failover Clustering (WSFC)

    Windows Server Failover Clustering (WSFC) is a feature of the Windows Server platform for improving the high availability (HA) of applications and services. WSFC, which is the successor to Microsoft Cluster Service (MSCS), can be administered through the Failover Cluster Manager snap-in.

  • Windows Server Update Services (WSUS)

    Windows Server Update Services (WSUS), also called Windows Update Services (WUS), is a free add-on for managing patches and updates to the Microsoft Windows XP, Windows Server 2000, and Windows Server 2003 operating systems... (Continued)

  • Windows Sysinternals

    Windows Sysinternals is a suite of more than 70 freeware utilities that was initially developed by Mark Russinovich and Bryce Cogswell that is used to monitor, manage and troubleshoot the Windows operating system, and which Microsoft now owns and hosts on its TechNet site.

  • windows, icons, mouse, and pull-down menus (WIMP)

    WIMP is an acronym describing the desktop user interface familiar to Windows and Mac computer users, significant features of which are windows, icons, a mouse, and pull-down menus.

  • WinFrame

    WinFrame is a software product from Citrix that, together with a Windows NT operating system, allows a computer server to provide Windows applications and data for attached computer workstations.

  • Winsock

    Winsock is a programming interface and the supporting program that handles input/output requests for Internet applications in a Windows operating system.