Get redirection list entry

              AX = 5F02h
              BX = Redirection list index
              DS:SI -> 16 char local device name buffer
              ES:DI -> 128 char network name buffer
      Return: CF = 1 if error
                  AX = Error Code
              BH = Device status flag (BIT 0 = 0 if valid)
              BL = device type (03 if printer, 04 if drive)
              CX = stored parameter value
      Note: DX and BP are destroyed by this call!