Format of Service Advertising Protocol Service Query Packet:
Offset	Size	Description	)
 00h 30 BYTEs	IPX header
 1Eh	WORD	(big-endian) query type
		0001h general find service
		0003h find nearest server
 20h	WORD	(big-endian) server type
		(see #01890 at INT 21/AH=E3h"CONNECTION CONTROL")
SeeAlso: #03818