DSL in .Net

In Zonnon project we have gained some experience with language interoperability on top of .NET. In the area of domain specific languages interoperability remains an issue. Recently we have started a new project to study interoperability of domain specific languages in a real industrial setup. For this study we are going to implement one or two DSLs using .NET as an interoperability platform and on the go to come up with a more general approach to interoperability between DSLs. There is a blog associated with this project.