NOTE: You must keep the double comma before the number seven!
Save the file.Open the Add/Remove Programs applet in the Control Panel.Click on Add or Remove Windows ComponentsLocate the line near the bottom that reads Windows Messenger and clear the check box.Click Next at the bottom of the dialog box and then click Finish when the process completes.[/list]Method #3: Completely Remove The Instant Messenger Client With a Run Command
This will completely remove Messenger from any version of Windows. On other versions of Windows, however, there will be an entry in the Add/Remove section of the Control Panel, so this is usually unnecessary. Also, the only way to get it back after this is to download and reinstall it![/size]