Int 15 Fn 64  - Hunter 16 - Control Resume Mode                            [b]

   AH = 64h
   AL = new state
       00h disable Resume mode
       01h enable Resume mode

Return: AH = status
Desc:  turn Resume mode on or off. In Resume mode the system starts in
     the application that was running when it shut down as if nothing
     had happened.

See Also: AH=67h,AH=68h,AH=69h