Windows PowerShell 1.0 RtW (Release to Web) is available.
Uninstall any previous versions of Windows Management Framework 3.0, if applicable.
Download and install Windows PowerShell, the required .NET Framework and Windows Management Framework.
If you want to create and run your own PowerShell scripts, you need to digitally sign your scripts.
To create your own so called "self-signed" certificate you'll need
makecert.exe that comes with the .NET Framework 2.0 SDK.
To learn more about signing your scripts, start a PowerShell shell, type
help about_signing and read this text carefully.
help Set-AuthenticodeSignature -detailed and read this text just as carefully.
You may want to redirect the text into two text files by using the following commands:
get-help about_signing > C:\about_signing.txt
get-help Set-AuthenticodeSignature -detailed > C:\Set-AuthenticodeSignature.txt
You can then keep and/or print the files C:\about_signing.txt and C:\Set-AuthenticodeSignature.txt for future reference.
After signing a script, and allowing scripts to run on your system, don't forget to start the command line with a dot to run the script (read the chapter on Parsing in the Getting Started Guide).
Arul Kumaravel's MSH Language Quick Start
Arul Kumaravel's PowerShell cheat sheet for cmd.exe users
Lots of PowerShell in Sapien's scripting blog.
Download the PowerShell Help Tool from Sapien's free tools page (registration required).
"Powershell's help system is excellent! But the console window is not the best reading pane for looking through help documentation.
ShinyPower provides a windows application that brings out this help information, and lets you browse it in a more comfortable manner."
TechNet Script Center: Converting VBScript Commands to Windows PowerShell Commands.
TechNet Script Center: Scripting with the Windows PowerShell.
TechNet Script Center: What Can I Do With Windows PowerShell?, A Task-Based Guide to Windows PowerShell Cmdlets.
Sample PowerShell Scripts
My own sample scripts
Interview with Jeffrey Snover - Monad Software Architect
Windows PowerShell Blog
PowerShellIDE, "The World's First PowerShell Editor" by Dr. Tobias Weltner.
Guy Thomas' PowerShell section.
Who said PowerShell is limited to text mode? These PowerGadgets do look promising.
Administrative Templates for Windows PowerShell.
For the French speaking scripters: www.powershell-scripting.com by Arnaud Petitjean and Robin Lemesle.