As you certainly know by now, we have released the Visualization and Modeling Feature Pack.
One of the new capabilities that we have enabled in the Pack is the ability to hook into the Layer Diagram in a number of different ways ( Command, Gesture, and Validation Extensions ).
I want to make you aware of an issue that you will certainly run into if you don’t first read our documentation.
The documentation is here: http://msdn.microsoft.com/en-us/library/ff657794.aspx entitled “Troubleshooting Extensions for Layer Diagrams”.
The essence of the issue is the need to install the Feature Pack in the experimental instance of Visual Studio.
If you follow the steps in the docs, you’ll be fine, and the good news this is a one time situation.
I wanted to point this out, ‘cause if you are anything like me, you might “miss” the documentation suggestion. ;)