Int 13 Fn 4257  U - Beame&whiteside Bwlpd - Installation Check             [N]

   AX = 4257h ("BW")
   DX = 1234h

Return: BX = 414Ch if installed
Program: BWLPD is the printer daemon from the BW-NFS package

See Also: INT 62/AH=00h"ETHDEV"