Tweak UI: Hide Control Panel Extensions
Wish you could hide some Control Panel items, to keep meddling fingers from messing with these settings? Open Tweak UI by selecting Start, All Programs, PowerToys for Windows XP, Tweak UI for Windows XP. In the tree list, select Control Panel. Scroll through the list of Control Panel extensions and deselect those you'd like to hide from view. The next time you (or anyone else) opens the Control Panel, those 'hidden' items are nowhere in sight.
(Note: Set up shortcuts to the *.cpl files before hiding them, so you'll always have access to them.)
MS Power Tools
Or use spy software, e.g.:
Spy Agent