The Script Repository categorizes sample scripts designed to run on Windows 2000, Windows XP, and Windows Server 2003.
Most of the scripts linked to from this page were written using VBScript. See the Scripting Resources on the right side of this page for scripts written in other scripting languages, including Windows PowerShell.
New to scripting? Take a look at the Getting Started page to learn more about how these scripts work and how to write your own scripts.