Hi Gwolf2u,
Welcometo MSDN forums!
Here are some tutorials about ClickOnce ApplicationAutomatic Updates for you to check.
Official document: How to Manage Updates for a ClickOnce Application
http://msdn.microsoft.com/en-us/library/1zyc39fb.aspx
ClickOnce applications can check for updates automatically or programmatically. As a developer, you have lots of flexibility in specifying when and how update checks are performed, whether updates are mandatory, and where the application should check for updates.
Example 1: This article presents quick and clear steps to Deploy, Install and Update your application via the ClickOnce deployment.
http://www.codeproject.com/KB/install/QuickClickOnceArticle.aspx

Example 2: This article describes the steps to add automatic update capabilities to your application quickly and easily using the DDay.Update library.
http://www.codeproject.com/KB/install/DDayUpdate_Part1.aspx

I move it to Setup Project and ClickOnce Deployment Forum for better responses.
Best regards,
Martin Xie
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