ActiveExit is designed for Windows XP (bot 32-bit and x64) and similar versions of Windows (such as Windows Media Center Edition, etc.). It is also backward compatible with Windows 2000. This version of ActiveExit is NOT compatible with Windows Vista. ActiveExit is NOT compatible with Windows 95, 98, Me, Windows NT 4.0 or any older version of Windows.
There are no special system requirements or recommendations except the obvious one: the better processor and more RAM your computer has, the better ActiveExit will perform.