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

	AX = 0B56h
Return: AX = 4952h if resident
SeeAlso: AX=0D20h,INT 12/AX=4350h/BX=4920h,INT 13/AH=F2h,INT 21/AX=010Fh
</pre>