LanBuster lets you easily turn on or off filesharing from your computer.

LanBuster lets you easily turn on or off filesharing. Lanbuster runs in the system tray, and signals with the icon color whether the LAN has been disabled or not. A double click on the icon in the system tray is all that is needed to control the state of your file sharing. Your internet connection is not affected. LanBuster can be useful for everything from mp3 encoding, cd-bruning to online gaming.