INT 21 - Novell NetWare v2.1+ - CHANGE TO CLIENT RIGHTS (OLD)
	AX = F217h subfn 74h
	CX = length of request packet in bytes
	DX = 0000h (no reply packet)
	DS:SI -> request packet (see #01990 at AH=E3h/SF=74h)
	ES:DI ignored
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
Desc:	temporarily assume the login identity of the client submitting the
	  job being serviced
SeeAlso: AH=F2h"NetWare",AH=E3h/SF=74h,AX=F217h/SF=85h