Beginners Guides: Understanding and Tweaking Windows XP Services http://www.pcstats.com/artvnl.cfm?articleID=1759
"Learn to use the 'Services' young Jedi, they are powerful and control much of WindowsXP. Without mastering the 'Services', you'll be forced to run programs in the system tray for all eternity!!"
NLite to chop down the size of a Windows XP installation, include drivers (especially those needed to install essential components for the installation itself eg RAID), service packs, and tweak settings, plus make unattended setup.
Trying to fit a PC into an Alfa Romeo GTV. It's installed, but the buttons have fallen off since.