INT 21 - Novell NetWare - LOCK PHYSICAL RECORD SET (OLD)
	AX = F21Bh
	CX = length of request packet in bytes
	DX = 0000h (no reply packet)
	DS:SI -> request packet (see #02480 at AX=F26Eh)
	ES:DI ignored
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AX=F26Eh,AH=C2h"NetWare"