Int 21 Fn 37A3  - Xpack V1.52+ - Set Tsr Status                            [k]

   AX = 37A3h
   BX = 6A6Dh ('jm')
   DL = status (01h active, 00h disabled)

Return: AX = 0000h (successful)

See Also: AX=37A0h/BX=6A6Dh,AX=37A2h/BX=6A6Dh