Make your windowed games Borderless Fullscreen
Strong Folder/File hider for your windows using AES Encryption.
ABAgent is a utility for windows that can easily hide any window.
Window management utility for Windows; turn programs into overlays.
Luz is an mGSTEP based X11 Window Manager.
Close, hide, minimize and open multiple programs with a single button!
Hide windows from praying eyes or for the comfort of a clean desktop.