Category: <b>disk I/O enhancements</b>
<p>
<pre><b>INT 2F - CD-ROM v2.00+ - DRIVE CHECK</b>

	AX = 150Bh
	CX = drive number (0=A:)
Return: BX = ADADh if MSCDEX.EXE installed
	    AX = support status
		0000h if drive not supported
		nonzero if supported
SeeAlso: AX=150Dh
</pre>