How to turn off mssngr...need help

From: agram (anonymous_at_discussions.microsoft.com)
Date: 11/28/04 

Date: Sun, 28 Nov 2004 10:00:43 -0800

I realize most of you here are into real time chats, but
this MS program drives me nuts every time I use my dial
up to get on the internet or boot up my pc. How do I
turn off messenger start up in XP?

Thanks In Advanve

Alan