Windows Command Reference - updated for Vista and Server 2008

If you are a command line junkie like me, you will appreciate this download from Microsoft that details all the available commands in Server 2003, Vista and Server 2008.

The official description is below:
The Windows command-line tools are used to perform various tasks related to Windows Vista, Windows Server 2003, and Windows Server 2008.You can use the command reference to familiarize yourself with new and enhanced command-line tools, to learn about the command shell, and to automate command-line tasks by using batch files or scripting tools.