New Post: ClosedXML in DLL

I want to use ClosedXML in a VS2010 dll.

When I try to register (regasm /tlb MyDll.dll /codebase I get error RA0000 ... could not load file or assembly ClosedXML...

I saw something regarding ClosedXML not being "COM visible"

Does this make it impossible to use in a dll ?