Microsoft automatically installs Windows Messenger and also makes it very difficult to uninstall Windows Messenger.
Microsoft does this by hiding Windows Messenger from the Add or Remove Programs dialog.
It is possible to uninstall Windows Messenger with one complex command.
Steps to Uninstall Windows Messenger
Click the <Start> button
Click <Run>
Enter the command "RunDll32 advpack.dll,LaunchINFSection %windir%\INF\msmsgs.inf,BLC.Remove"
Click the <OK> button
Click <Yes> to restart your computer
