Discovered Pages
[Discover] Microsoft PowerToys for Windows XP http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx
(windows microsoft tweakui utilities) 
[Discover] Sample Chapter from Microsoft® Windows XP® Registry Guide by Jerry Honeycutt http://www.microsoft.com/mspress/books/sampchap/6232a.aspx (tweakui registry xp)