AutoUpdater.NET Tutorial: Setup, Configuration, and Best Practices

How to Use AutoUpdater.NET to Keep Your Windows App Up-to-Date

What it is

AutoUpdater.NET is a lightweight open-source library for .NET applications that checks a remote XML (or JSON) feed for updates and can download and run an installer or patch to update the application.

Quick setup (presumptions: WinForms/WPF, .NET Framework/.NET Core)

1. Add the NuGet package:
   • Install-Package AutoUpdater.NET

2. Create an update feed (XML or JSON) hosted on a web server or CDN. Minimal XML example:

 1.2.0.0 https://example.com/downloads/MyAppSetup_1.2.0.0.exe false https://example.com/changelog/1.2.0.0.html Bug fixes and small improvements

3. Call AutoUpdater from your app (e.g., on startup):

using AutoUpdaterDotNET; AutoUpdater.Start(”https://example.com/update.xml”);

Options: set AutoUpdater.ReportErrors, AutoUpdater.ShowRemindLaterButton, AutoUpdater.DownloadPath, and event handlers (CheckForUpdateEvent, OnApplicationExit, etc.) for customization.

Common usage patterns

• Silent background check: run AutoUpdater.Start with ShowDialog=false (or handle events) and only prompt when update found.
• Mandatory updates: include true in feed so users must update.
• Patch vs full installer: point URL to incremental installer/patch if available.
• Custom UI/flow: handle AutoUpdater.CheckForUpdateEvent to implement your own download/install UI and logic.

Security & hosting

• Use HTTPS for the update feed and downloads.
• Sign installers to prevent tampering.
• Optionally verify file hashes in the app after download.

Troubleshooting tips

• Ensure version strings follow comparable format (major.minor.build.revision).
• Check CORS and server MIME types if updates fail to download.
• Enable AutoUpdater.ReportErrors to get exceptions during checks.
• Test feed URL in a browser to confirm it returns valid XML/JSON.

Resources

• Use the AutoUpdater.NET GitHub README and NuGet package docs for full API and examples.

If you want, I can produce a ready-to-host update XML/JSON file and sample code tailored to your app (name, current version, installer URL).