WinHide 1.0

Quickly hide your working programs and windows. The hidden programs are not displayed in the Taskbar, in Ctrl-Alt-Del list or in task manager and they cannot be activated pressing Alt+Tab. You can hide and restore programs using keyboard shortcuts, WinHide System Tray menu or the WinHide window.
Ссылка: http://pwp.netc../products/WinHide1.exe