NTWind Close All Windows is a utility that alows you to close all the windows that you have open at any one time. This is an immensely useful application if you suffer from frequent system crashes or have trouble closing windows with Windows task manager.
On the plus side, this program does not require installation - it simply decompresses the file and executes it when you want to close all your windows in one move. It is recommended however that you create a direct access shortcut on your desktop to give you instant access to it when needed.
This program does nothing that Windows task manager cannot do although it does not require pressing both Ctrl-Alt-Del to reveal it in which case, it's much easier.
Without doubt, its not an essential utility but can be practical if you suffer from frequent system crashes.