INT 2F - AD-DOS - SET ??? INTERNAL FLAG TO 01h
AX = 0C0Ch
CF set
Return: AX = status
0000h successful
000Ch failed
Notes:  AD-DOS is the DOS version of the After Dark screen blanker
AH=0Ch is the default multiplex number


2F0C0C - AD-DOS - SET ??? INTERNAL FLAG TO 01h