INT 21 - Novell NetWare - CLOSE SEMAPHORE (OLD)
	AX = F220h subfn 04h
	CX = length of request packet in bytes
	DX = 0000h (no reply packet)
	DS:SI -> request packet (see #02286)
	ES:DI ignored
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AX=C504h,AX=F220h/SF=00h,AX=F220h/SF=01h
SeeAlso: AX=F26Fh/SF=01h


Format of NetWare "Close Semaphore (old)" request packet:
Offset	Size	Description	(Table 02286)
 00h	BYTE	04h (subfunction "Close Semaphore (old)")
 01h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	semaphore handle
SeeAlso: #02285,#02483