Some malware programs utilize multiple running processes at once that monitor and ensure that its other processes are always running. When you attempt to end one process in Windows' built-in utility Task Manager, the other processes immediately detect this and automatically restart the killed process.
With one click of a button, you can stop all running applications. Just hold down Ctrl and click to select one, two, three or any number of processes. Then simply click Kill Selected or hit F4 to end all the selected processes at once.
Spacetornado Killer weighs only 52KB and no installation required.
Requirements: Windows XP SP2, 2003, 2000, ME, 98SE, Microsoft .NET Framework 2.0