EnumLocalUserGroup.wsf is a script that allows you to audit the membership of a selected local group on a single computer, a list of computers, or an OU containing computers. Typically you will want to audit the Administrators or Power Users groups.
Rename it from .TXT to .WSF (not .VBS). Windows Scripting Files allow multiple jobs within a single file. I am using this to support multi-threading of query to speed up the collection of data.
Updated: 4/10/2009: New version give control over maxCPU when muti-threading, and gives more informative pause messages.