History of the ZIP Program, Copyright 1992 by Access Success


ZIP version 1.0, released August 1, 1992

Original release that returned a zip code or zip range when given
a city in the U.S.

Quick and easy operation from the DOS prompt.



ZIP version 2.0, released November 23, 1992

Added area codes to the database file and output.

Added searches by state, zip, and area code.

Utilized new indexing technology that facilitated multiple search
options without more disk space.

Selected a different zip range as more meaningful to display: 
the boundaries of the longest, consecutive zip sequence rather
than of all zip codes in the city or state in question.

Thanks to Bob Gildea for beta testing this version and providing
a large data collection it incorporates.