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Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.
ClickOnce is a deployment technology that enables you to create self-updating Windows-based applications that can be installed and run with minimal user interaction. Visual Studio provides full support for publishing and updating applications deployed with ClickOnce technology if you have developed your projects with Visual Basic and Visual C#.
ClickOnce can provide automatic application updates. A ClickOnce application periodically reads its deployment manifest file to see whether updates to the application are available. If available, the new version of the application is downloaded and run. For efficiency, only those files that have changed are downloaded.
When designing a ClickOnce application, you have to determine which strategy the application will use to check for available updates. There are three basic strategies that you can use: checking for updates on application startup, checking for updates after application startup (running in a background thread), or providing a user interface for updates.
In addition, you can determine how often the application will check for updates, and you can make updates required.
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