INT 65 - NetSoft DOS-NET v1.20+ - ??? API

	DX = 4147h
	BH = 02h
	BL = function number (00h-05h)
	???
Return: CF clear if successful
	    AX = ???
	CF set on error
	    AX = error code (0001h=invalid function/subfunction)
Range:	INT ?? to INT ??, selected by configuration option; actual interrupt
	  number and function number may be retrieved via INT 2A/AX=4147h
Note:	this API is supported by CLIENT.COM, SERVER.COM, DOSNET.COM, and
	  ROUTER.COM
SeeAlso: DX=4147h"INSTALLATION",INT 2A/AX=4147h