use a c sharp class in visual cobol

I have a main c# application that runs visual cobol programs. both project have different namespaces. In my c sharp project I have a logger class that I would like both projects to use.

So far I've made a reference to the main project from the cobol project, used $set ilusing"namespace" added the namespace to the cobol project through the GUI. Nothing. I think I might be missing a bigger issue. Any ideas?