Int 2C Fn 0031  P - Cloaking V1.01 - Allocate V86 Callback                 [m]

   AX = 0031h
   DX:EBX = CS:EIP of protected-mode routine to be invoked by callback

Return: CF clear if successful
       EBX = CS:IP of V86-mode callback handler
   CF set on error

See Also: AX=0032h