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Windows PowerShell is a new command-line shell and scripting language that helps IT Professionals achieve greater productivity and control system administration more easily. Windows PowerShell accelerates automation of system administration tasks and can help improve your organization’s ability to address the unique system-management problems of your server environment.
Windows PowerShell is easy to adopt, learn, and use because it does not require a background in programming, and it works with your existing IT infrastructure, existing scripts, and existing command-line tools. Unlike most shells which accept and return text, Windows PowerShell is built on top of the .NET common language runtime (CLR) and the .NET Framework, accepting and returning .NET objects. This fundamental change in the environment brings entirely new tools and methods to the management and configuration of Windows.
Windows PowerShell introduces the concept of a cmdlet, a simple, single-function command-line tool built into the shell. Windows PowerShell includes more than 130 standard cmdlets, and you can write your own cmdlets. Each cmdlet can be used separately, but their power is realized when you combine these simple tools to perform complex tasks.
Windows PowerShell is a useful tool for managing specific Windows Server 2008 roles, such as Internet Information Services (IIS) 7.0 and Terminal Server, as well as Microsoft Exchange Server 2007 and Microsoft Operations Manager 2007:[/quote]