Int 2F Fn AD00  U - Dr Dos 3.41-5.0, Novell Dos 7 Keyb - Installation Che  [O]

   AX = AD00h

Return: AX = FFFFh if installed
   flags destroyed

Note:  the Novell DOS 7 KEYB driver only checks AL to determine whether it
     is already installed

See Also: AX=AD80h"Novell"