INT 64 - BW-NFS - BWRPC - MAP EMSsee Expanded Memory Specification PAGE FRAME
	AH = FEh
	AL = direction
	    00h map in driver's memory block
	    01h map out driver's memory block
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4E to INT FD, selected by configuration
Note:	this call is passed through directly to ETHDEV.SYS (see INT 62/AH=FEh)
SeeAlso: INT 21/AH=3Fh"BW-TCP",INT 62/AH=FEh,INT 63/AH=03h"BW-TCP"
SeeAlso: INT 63/AH=24h