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Zip Code Directory Upgrade History

2006
Updated the database to reflect current information.

2005
Updated the database to reflect current information.

2004
Created a more compact viewing window for the main zip code software screen. It's now easier to see other currently running applications on your PC. Updated the mouse-over help file. Updated the database to reflect current information.

2003
Added direct online Internet connection ability to our web site through the Quikthinking Zip Codes software to access fast updates to the latest zip code database. This software feature can be chosen by the software user, as an option, and is not required. Updated the database to reflect current information.

2002
Upgraded the database to reflect current information.

2001
Version 6.1 for Windows released. Upgraded the database to reflect current information. Added more domestic area codes to the help system. Software manual made available for download in Microsoft Word and Adobe Acrobat format from the registered user section of the Quikthinking Zip Codes web site.

2000
Version 6.0 for Windows released. Upgraded the database to reflect current information. Added more domestic and international area codes to the help system. With this version the complete software application package was made available for direct download from our web site.

1999
Version 5.0 for Windows released. Upgraded the database to reflect current information. Easier to read on screen information in larger text. Data window now opens automatically. Faster searches. Easier installation, and uninstall. Added more domestic and international area codes to the help system.

1998
Version 4.0 for Windows released. Upgraded the database to reflect current information, and to also include every USA County. Added more international area codes to the help system.

1997
Version 3.0 for Windows released. Upgraded the database to reflect current information, and to include every 5 digit zip code in the USA. Added a ZIP + 4 Internet link to the USPS.

1995
Version 2.0 released for Windows.

1993
Version 1.0 for DOS released. Included the major 5 digit zip codes for USA cities with populations of 4,000 or more. Network compatibility and sophisticated query searching included in the first release.

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