C#: associating a Command to a PlugIn

I have a Class Library project with some custom Rhino.Commands.Command classes.
And I have a RhinoCommon Plug-In project in the same solution.

How can I associate these Commands to the Plug-In that is under a different assembly?
Is it possible?

Thank you.

A better approach is to have your command defined in your plug-in (assembly) and have these commands use classes and functions in your class library assembly.

– Dale