XP's indexer, and the System Restore enabled on that drive rank high on my list.
Also, XP gags on other file systems. What to do but move on and nod that this old boat is leaky?
Bob
I just bought a LaCie 1TB USB/Firewire external drive. I'm using Windows XP at home and Macs for some classes and PCs for other classes at school. My plan was to partition the drive, one partition being FAT and the other HFS+ (Mac file system). I installed MacDisc to access the HFS partition at home to back-up my files.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic