INT 2F - DOS 3.3+ internal - GET DEVICE CHAIN AX = 122Ch Return: BX:AX -> header of second device driver (NUL is first) in driver chain Note: although this function exists in DR DOS 5.0 and Novell DOS 7, it always returns 0000h:0000h prior to Novell DOS 7 Update 15 SeeAlso: INT 21/AH=52h