Category: <b>DOS extenders</b>
<br>Flags: available only in protected mode<p>
<pre><b>INT 21 - Phar Lap 386/DOS-Extender v2.2+ - FREE ALL MEMORY OWNED BY LDT</b>

	AX = 2516h
Return: CF clear
Note:	this function must be called from Ring 0 or the CS descriptor is freed
</pre>