Anyone with Windows XP or possibly some versions of NT would have seen some popup windows filled with advertisements/spam, when I first got my new XP box up and running I got some of these pop-ups.
In case anyone doesn’t know how to fix this, Ill give a little explenation of what it is.
Windows Messenger service has nothing to do with MSN Messenger, but is actually a small program built into Windows to allow people to receive messages from people on a LAN or local intranet. Spammers didn’t take long to find a way to exploit it.
To stop these pop-ups from ever happening again all you have to do is:
Go to Control Panel->Administrative Tools->Services. Find the Messenger Service, right click on it, choose properties. Set it to Disabled.
Bum Bum Buuuuum.. And its just that easy, Here\'s
some more detailed information about the messenger service from a Microsoft site