>>Does any one already have a zip code / city verifier that is shareware? I want to be able to enter a zip code and have the city and state automatically appear.
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>It is about 2 years old, but you can look converting the following file to a table. free zip code database I believe it is an Excel worksheet, and I converted it to a table very easily several months ago.

There's a product out - ZipZapp - that's updated twice a year, and contains DBFs. You might also want to explore address cleansing software used to clean up mass mailing databases.