Category: <b>DOS extenders</b>
<br>Flags: available only in protected mode<p>
<pre><b>INT 21 - Phar Lap 386/DOS-Extender VMM v2.3+ - CLOSE VMM FILE HANDLE</b>

	AX = 252Dh
	EBX = VMM file handle
Return: CF clear if successful
	CF set on error
	    EAX = error code (81h invalid VMM handle)
</pre>