INT 13 U - Beame&Whiteside BWLPD - INSTALLATION CHECK                       
	AX = 4257h ("BW")
	DX = 1234h
Return: BX = 414Ch if installed
Program: BWLPD is the printer daemon from the BW-NFS package
SeeAlso: INT 62/AH=00h"ETHDEV"