INT 6F - HP Vectra EX-BIOS - "F_INS_XCHGFIX" - EXCH VALUES WITH FIXED VECTOR
	AH = 06h
	BP = 0012h (driver ID for V_SYSTEM)
	BX = vector address
	DX = new value for DS
	ES:DI -> new CS:IP(Internet Protocol) The lower level (transport layer) of the TCP/IP protocol suite.	See also TCP, TCP/IP. entry point
Return: AH = status (see #03744)
	DX = old value for DS
	ES:DI -> old CS:IP(Internet Protocol) The lower level (transport layer) of the TCP/IP protocol suite.	See also TCP, TCP/IP. entry point
	BP,DS destroyed
Desc:	replace an existing EX-BIOS driver at a fixed HPVT location without
	  initialization
SeeAlso: AH=00h"HP Vectra",AH=04h"F_INS_BASEHPVT",AH=08h"F_INS_XCHGRSVD"
SeeAlso: AH=0Ah"F_INS_XCHGFREE",AH=0Ch"F_INS_FIXOWNDS"