Untested thought about Web page hyperlink.
Could have a "link" show on a form that calls @Shell opening your browser, opening the webpage for USPS.
Check the command line syntax for the browser you are using. Include the full path of your browser in the @shell command.
Something like this to launch Zip Code finder with Mozilla:
var vBrowser as int
vBrowser = @Shell("C:\Program Files\Mozilla.org\mozilla\mozilla.exe http://zip4.usps.com/zip4/welcome.jsp")
If Not vBrowser = 0 Then
@Msg("Couldn’t start Browser")
Again, this is untested, may need some more "s somewhere but this should get you started.
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Some random thoughts:
To make a "hyperlink" you could add an unbound text element without borders. You could draw a thin line underneath to make it look like text for link is underlined.
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How about entering a zip code with a leading * and programming to strip off the leading * and then open zip code web page based on first character being *
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How about doing XLU in same database and if not found then open up the web page for usps?