To "Shoot the Messenger" download the free program from here: http://grc.com/stm/shootthemessenger.htm
Also, you could go into the preferences of Windows Messenger and make sure that load on startup is disabled.
Hope this helps,
ms messenger is like crab grass. i cannot get rid of it. no matter how many times i have disabled it at startup in msconfig, its back the next time i boot up my hp pavillion computer running xp home. its aided by microsoft's antispyware which says its harmless and its going to be allowe at startup. i dont even want this application, but i have found that i cant even delete it. i get a message that naother program is using it. it cant be removed from the control panel nor from tuneup utilities application delete function. someone , please help me on this. how does one kill the messenger? thank you