Compact Plugs is plug-in framework for .Net Compact Framework and .Net Full Version. Compact Injection is a small dependency injector for both .Net versions.
PDNBulkUpdater is a plug-in for Paint.NET that allows you to efficiently perform operations such as resizing and converting multiple images at the same time. The plug-in contains both an integrated UI and a command line tool.
Got a bug you just can't crack? Want to automate or customize something but the team will howl at you for checking it in? Symmetry Plugins to the rescue!!!
A .NET 2.0 C# library that allows users to easily write plug-ins for Windows Media Player in .NET (C#). Currently supports Visualisation plugins and provides working samples.