Message Subtract allows you disable the Windows Messenger service, preventing advertising popups that are sent directly to your desktop, using your IP address. The interface simply provides a shortcut for to turn Messenger Service off. The same action can be performed by changing the Windows settings, however this tool is free and saves you a few mouse clicks. You can choose to stop the service, disable it or set it to manual. If you are not using a local network and receive legitimate LAN messages, you should choose disable.
