It is common practise for modern applications to check to see if there are newer versions of their component files available by communicating with a central base server somewhere on the Internet.
The server is asked to provide the version information for the latest release and if a newer version is discovered then the local application can be automatically updated to the latest version.
Building this functionality into your application makes it easy to ensure that your customers always have the latest version of your software and reduces your volume of support calls
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This samples shows how the wodAutoUpdate ActiveX control provides everything you need to remotely maintain your app across the Internet - communicate with the server, compare file versions and download newer files, making it quick and simple to provide an auto-update facility from within your application.