Breaking out NServiceBus message objects into .Message projects
Found out my presentation service was registering Application event handlers because I was directly referencing Application.Inventory
Now I reference Application.Inventory.Messages to only get the message objects I need and not the event handlers

This is the build is broke now because NServiceBus is hitting a stackoverflow when it loads assemblies.  I've tracked this down to my application project, it works fine without a .Messages project, and fails with it.
Since the .Messages project is necessary I'm still debugging this issue.