Category: <b>serial I/O</b>
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<pre><b>INT 6B - NPC NCSI EXTENDED SERIAL I/O - QUERY NAME SERVICE</b>

	AH = 21h
	AL = virtual circuit number
	CL = ??? (00h or 01h)
	ES:BX -&gt; buffer for service name structure (see <a href=../../it/32/37.html>#03732</a>)
Return: CF clear if successful
	    ES:BX buffer filled
	CF set on error
Notes:	a program should call this function after allocating a virtual circuit
	  and check that the general name matches the requested service
	prior to version 3.0, Novell's NASI returned the first available port;
	  v3.0+ returns the first port found--check the returned status to
	  determine whether the port is available
SeeAlso: AH=14h"NCSI"

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