AB Commander XP Edition is designed for Windows XP, Vista and similar versions of Windows (such as Windows Server, Windows Media Center Edition, etc.). It is also backward compatible with Windows 2000. AB Commander XP is NOT compatible with Windows 95, 98, Me, Windows NT 4.0 or any older version of Windows.

AB Commander x64 Edition is for the x64 versions of Windows Vista and XP. AB Commander x64 is NOT compatible with the 32-bit versions of Windows.

There are no special requirements or recommendations except the obvious one: the better processor and more RAM your computer has, the better AB Commander will perform.