I am attaching a zip file containing an Access mdb database. The database has a table of 27 random US zips and a form -frmZipSample. Using the form you can select 2 zips and at the click of a button get a message showing
a) the distance between the zips, and
b) the estimated driving time.
There is an option to show the route in a separate browser window. I use Firefox 12.
This is for illustration only. Google Maps is the property of Google.