Sometimes, Windows or a running application hangs, the user interface abruptly stops responding, and you cannot determine what has caused the problem or how to troubleshoot the issue. This utility tries to detect the software or process that is currently hung, and displays some information that may allow you to sort out and understand what exactly is at the root of such unexpected behavior.
There’s nothing more annoying than being the victim of an unusual Windows program which definitely hangs the entire system many times. You might want to look at WhatIsHang. It is a free utility software from the great Nirsoft, which tracks down unexpected programs and gives you the chance to fix the problem. However, you’ll need to be a little geek to learn the language. Anyway, at least it is completely free and very helpful, right?