INT 21 - Novell NetWare - LOCK FILE SET (OLD) AX = F204h CX = length of request packet in bytes DX = 0000h (no reply packet) DS:SI -> request packet (see #02096) ES:DI ignored Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h) SeeAlso: AH=F2h"Novell",AX=F203h,AX=F26Ah,AH=CBh"NetWare"