Int 2F Fn 920D  U - PC Tools V8.0 Drivemap - Get Drive Type                [R]

   AX = 920Dh
   BL = drive letter (41h ['A'] = A:, etc)

Return: AX = type flags
       bit 0: ???
       bit 1: available
       bit 5: local
   BX = ???
   CX = segment of resident code (apparently an unintended side effect)
Program: DRIVEMAP is a redirector which allows drives on computers connected
     over the parallel or serial ports to appear as local drives

See Also: AX=9218h,INT 16/AX=FF70h