A program has crashed, but still refuses to shutdown. You hit CTRL-ALT-DEL and try to shutdown the process. If you’re lucky the task manager will close the application, if you are not, it will simply fail. AppSwat will let you close any application with just a quick mouseclick. And by the way, if you’re curious what programs are actually running, what tasks are sitting in the background, maybe even hiding - this information is available in
AppSwat’s process list.