Category: <b>virus/antivirus</b>
<p>
<pre><b>INT 21 - VIRUS - "Oropax" - INSTALLATION CHECK</b>

	AX = 33E0h
Return: AL = E0h if resident (DOS returns AL=FFh)
SeeAlso: AX=330Fh,AX=33DAh,AX=357Fh
</pre>