With the My Extensibility feature, new in Visual Basic 2008, My namespace extensions can be activated or deactivated through the Project Properties Designer, or when an associated reference is added or removed from a project. This capability makes extending the Visual Basic development environment simple through deploying APIs for common coding tasks.
In the April 2008 issue of MSDN Magazine, Matthew DeVore focuses on how to integrate your extension with the My Extensibility feature.
Don't forget to browse the sample code in our online code library.
If you find yourself wanting more information on how to write the actual code extensions to the My namespace, see Simplify Common Tasks by Customizing the My Namespace in the July 2005 issue of MSDN Magazine.