The ECSnap Zip Code Locator is one of the most popular, easiest to install, and least expensive of the major Zip code locators on the Internet. The average cost of Zip code locator programs across the Internet is well over $1000.00 for a single license and several hundred dollars per year for data updates . We license each script for $169.00 at most. All our locator scripts include unlimited free data updates to stay current with USPS changes.  We are able to offer scripts at this price because we sell thousands of scripts a year and they require minimal support.  In order to use this program on your server, you only need to have access to Perl 5.0 or greater. If your server is not running Perl, we'll be happy to host your Zip code locator on our dedicated hosting server for free.