Int 2F Fn FB42  PU - Borland C++ 3.0 Dpmiload.exe - Set Protected-mode In  [E]

   AX = FB42h
   BX = 0025h
   CL = interrupt number
   SI:DX = selector:offset of new handler

Return: DX = status (0000h,0004h,FFF2h) (see #2801)

See Also: AX=FB42h/BX=0024h,INT 31/AX=0205h