Windows XP: How to get rid of Windows Messenger

"The fastest and safest way to remove Windows Messenger:

1) Click Start button

2) Click Run

3) Copy and paste this command into the Run dialog

4) RunDll32 advpack.dll,LaunchINFSection %windir%\INF\msmsgs.inf,BLC.Remove

5) Reboot and Windows Messenger is removed cleanly"

I got a "cannot unregister" message, but it worked. Phew.