Found the way to make plug-ins with VB.net for Rhino. It refuses incorporated external dll's though with the remark that the Rhino version is not set or somthing like that. But besides that how do I address in the VB component of Grasshopper this plug-in? I guess I have to get it in the imports? E.g. if I follow the example to make MyPlugIn1 it returns "The MyPlugIn1 command is under construction" in the Rhino command-line. How do I get this done in the VB component of Grasshopper?