Category: <b>network</b>
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<pre><b>INT 21 - TopWare Network OS v5.10+ - ENABLE/DISABLE TopTerm SERVICE</b>

	AX = FF9Fh
	CL = new state (00h disable [disregard TopTerm packets], 01h enable)
Return: AL = status (00h successful, FFh failed)
Note:	this function is only supported by Workstations, not the server
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