http://www.cryptnet.net/fsp/zipdy/Program for Linux to calculate the distance between two zip codes. [Open Source, GPL]Zipdy: Free Zip Code Distance Calculator
Zipdy is a program for calculating the distance between two zip codes and
finding all the records in a RDBMS with a zip code with x miles of another
zip code. Currently, RDBMS support exists for
. Additional future support for other databases will be
waiting for hand_moderationZipdyFreeZipCodeDistanceCalculatorFreeWare
Windows program allowing to analyze Macintosh files stored on a Windows NT Server. Download and a general information page on the software. [Windows 95/98/NT/2000]