if the question you're asking is to stop Windows Messenger from starting everytime u online, then here's the answer
open sysoc.inf in \windows\inf\ and delete all the 'hide' word, remember not to delete any comma, example:
before -> NtComponents=ntoc.dll,NtOcSetupProc,hide,4
after -> NtComponents=ntoc.dll,NtOcSetupProc,,4
the easiest way is to do a search/replace the word hide with nothing, save, and go into add/remove program and scroll down, you'll see windows messenger, uncheck to take it out, and you're all good to go
alpha