The example just shows checking at startup, but you should use a timer or some other method to call that function at some interval.
We'll have to clarify that example.
Windows Service
In the article http://wyday.com/wybuild/help/automatic-updates/windows-services-console-apps.php
In the part which discusses the checking for updates on windows services, you show the check every 10 days function (CheckEvery10Days()) being called as part of the OnStart(string[] args) function. But I'm wondering if this will only check once, when the service starts and not every 10 days. Do I need to add a timer, which calls the CheckEvery10Days() method? Or have a missed something in your code, and you are already doing this?