INT 21 O - Novell NetWare - MESSAGE SERVICES - CLOSE MESSAGE PIPE               
	AH = E1h subfn 07h
	DS:SI -> request buffer (see #01832)
	ES:DI -> reply buffer (see #01833)
Return: AL = status
	    00h successful
	    FCh full message queue
	    FEh out of dynamic workspace
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0-2.x
SeeAlso: AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=08h


Format of NetWare "Close Mesage Pipe" request buffer:
Offset	Size	Description	(Table 01832)
 00h	WORD	length of following data (max 66h)
 02h	BYTE	07h (subfunction "Close Message Pipe")
 03h	BYTE	number of pipes to close (01h-64h)
 04h  N BYTEs	list of connection numbers
SeeAlso: #01830,#01833


Format of NetWare "Close Message Pipe" reply buffer:
Offset	Size	Description	(Table 01833)
 00h	WORD	(call) size of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	list of results
		00h successful
		FDh failed
		FFh no such pipe
SeeAlso: #01831,#01832