Category: <b>resident utilities</b>
<p>
<pre><b>INT B3 - ZIPKEY - GET VERSION</b>

	AH = 70h
Return: AH = major version
	AL = minor version
	CL = number of states and territories in current database
	DH = year of current database - 1900
	DL = month of current database's file date
Program: ZIPKEY is a resident ZIPCODE database by Eric Isaacson
Note:	if installed, the string "ZIPKEY" is present at offset 75h in the
	  interrupt handler's segment, and the byte at 7Bh contains the API
	  version number (00h for v1.x, 01h for v2.0)
</pre>