With Windows XP Service Pack 1 or later, removing Windows Messenger from the start menu is simple.
Click Start, Control Panel, then Add or Remove Programs. Clear the check mark beside Windows Messenger, then click Next.
Windows Live Messenger reaches version 2009 with a renewed interface, loads of new features and a bit of extra weight.
Windows Live Messenger previously known as MSN Messenger, was renamed as part of Microsoft's move away from Hotmail, towards the Live online community.Chat conversations are not the only thing you can do with Windows Live Messenger.There is also the possibility of having video chats using your webcam, and also make Vo IP calls.Start Windows Messenger, then select Tools and Options.Select the Preferences tab and clear the check box next to “Run Windows Messenger when Windows starts.” If Windows Messenger is already disabled, then this option may not appear in the Preferences tab. In the list, find Computer Configuration, Administrative Templates, then Windows Components. Make sure that the Startup Type is set to Disabled, then click OK. If there are updates available for installation, select Install Updates.