Int 21 Fn 37D3  - Diet V1.43e - Set Tsr Control Flags                      [k]

   AX = 37D3h
   BX = 899Dh ('DI' + 'ET')
   DL = control flag (00h active, else disabled)
   DH = skip flag (00h)

Return: AX = 0000h

See Also: AX=37D0h,AX=37D2h,AX=37D5h