INT 7A - Novell NetWare - SPX Driver - INSTALLATION CHECK                       
	BX = 0010h
	AL = 00h
Return: AL = status
	    00h if SPX not installed
	    F0h if IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. not installed
	    FFh if SPX loaded
		BH = SPX major version
		BL = SPX minor version
		CX = maximum SPX connections
		DX = SPX connections available
Notes:	this function is supported by Advanced NetWare 2.1+
	this interrupt is used for IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software./SPX access in NetWare versions through
	  2.0a; in later versions, you should use INT 2F/AX=7A00h to get an
	  entry point even though INT 7A still exists.	For both INT 7A and
	  the FAR entry point, BX contains the function number
	IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. is sometimes called internally with BX bit 15 set, which causes the
	  entry point handler to bypass some checks and an optional call to
	  the IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Windows support handler set with INT 2F/AX=7AFFh/BX=0000h
	  (see #02926)
SeeAlso: BX=0015h