Deleting in XP. . .

I finally made the jump to XP Pro and what I have always done is go and uninstall or delete various programs that I KNOW I won't be using--this goes back to the days of small hard drives.

Anyways I found that whenever I tried to remove a program XP would give me a message indicating that someone else was using that prog and reinstall it.

I wanna remove Messenger, Outlook, Movie Maker and a few others. Any one have some tip, ideas, suggestions for me. Thanks in advance.