Try a PPRuNe search under 'Windows Messenger'.
However, I killed the wretched things as follows:Go to 'Start', then 'All Programs'. Open 'Windows Messenger', go to 'Tools', then 'Options', then 'Preferences' and then uncheck all the 'General' boxes. Then re-boot.
The intrusive nature of Windows Messenger in its default form is asource of irritation to most people I've spoken to about it. Why should Internet users be exposed to unsolicited and often pornographic messages? That's like someone butting in on a private phonecall.
Think again, Bi££ Gate$!!