Best practices for implementing an addin/addon/plugin strategy

Question

My application should be extensible. For my own needs I have implement some services. These services are based on the IoC/DI princple. So the services encapsulate the concept of

Answer 1

You seriously need to look at MEF - the Managed Extensibility Framework.

• Managed Extensibility Framework Overview
• Building Composable Apps in .NET 4 with the Managed Extensibility Framework
• MEF on Codeplex

It's a great new framework that Microsoft itself is using in e.g. Visual Studio 2010 for its extensibility story. Great and easy to use - why reinvent the wheel when you can use something that thousands of dev will use shortly??