ZHider is a small, standalone utility that allows you to completely hide any window from sight, using a quick keyboard shortcut. The hidden windows will not appear in the taskbar or system try, and can be easily unhidden by using another keyboard shortcut. You can also display a list of all currently hidden windows and optionally restore all of them instantly. The keyboard shortcuts to use are included in the Readme.txt. There in no interface, other than the list window, and only when triggered via hotkey.
