To launch Windows PowerShell, select Start→All Programs→Windows PowerShell 1.0→Windows PowerShell. Another option is to select Start→Run, then type "powershell". The PowerShell console window and command line prompt will appear as shown in Figure 1.

Figure 1-1. Windows PowerShell console window

To use PowerShell you enter a command. This can be a program (such as ipconfig,) a PowerShell cmdlet (such as Get-Process,) or even a simple expression:

PS >5*5 + 2
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