AbortShutdown is a light and easy to use tool designed to stop remote shutdowns made against your local machine. This is made possible only if you have sufficient privileges.

When a remote shutdown request is issued against your computer and the system dialog pops up to inform you, you simply double-click on the AbortShutdown tray icon and, provided you have sufficient privileges, the shutdown is aborted.

AbortShutdown lies unobtrusively in the system tray and takes very little of your system resources....Read more about AbortShutdown