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WPF Plugin Sample

This reference sample application shows how to create a Plugin Framework for a WPF application. The design goal is to enable dynamic composition of isolatable Plugins.

Use Case

Enable customers and partners to extend the functionality of a software product. Example: Browser Extensions.

Features

  • Stability: Plugins are created in an own process. This way instabilities of the Plugins do not affect the Host application.
  • Side-by-side execution: Plugins are deployed in a separate directory so that they can come with their own version of dependent libraries.
  • Localization: The Plugins can be localized via satellite assemblies.
  • Configuration: The App.config file is supported for Plugins.

Known Issues

  • Stability: The UI thread of the Host application and the Plugins are synchronized. Plugins can block the Host application.
  • Performance: The communication between the Host and the Plugins is done via .NET Remoting. This has some negative impact on the performance.
  • Limitation: A Plugin cannot show a modal Dialog. It can show Dialogs but they cannot be Modal because the Dialog cannot connect with the Host Window.