Int 2F Fn C009  - Ad-dos - Unblank Monitor                                 [V]

   AX = C009h

Return: AL = 00h if successful
Program: AD-DOS is the DOS version of the After Dark screen blanker for
     MS Windows

Notes: AH=C0h is the default multiplex number; if this is already in use,
     After Dark will try successive values up to AH=FFh
   this function works by simulating keyboard activity
Index: screen saver;AD-DOS