INT 21 - Trusted Access - NB.SYS - SET STATE

	AH = 40h
	BX = handle for character device "$$NB$$NB"
	DS:DX -> state record (see #01414)
	CX ignored
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (05h,06h) (see #01680 at AH=59h/BX=0000h)
Program: Trusted Access is a security and access-control package by Lassen
	  Software, Inc.; NB.SYS is a device driver to prevent the user from
	  terminating CONFIG.SYS or AUTOEXEC.BAT with Ctrl-Break
SeeAlso: AH=3Fh"NB.SYS"