INT 21 - Novell NetWare - GET ENCRYPTION KEY                                    
	AX = F217h subfn 17h
	CX = length of request packet in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request packet (see #02172)
	ES:DI -> reply buffer
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AX=F217h/SF=18h,AX=F217h/SF=4Ah,AX=F217h/SF=4Bh


Format of NetWare "Get Encryption Key" request packet:
Offset	Size	Description	(Table 02172)
 00h	WORD	length of following data
 02h	BYTE	17h (subfunction "Get Encryption Key")
	???