如何调试excel VBA COM引用对象

I created a .Net COM (Component Object Model) DLL, registered it and added it to an Excel VBAProject as a Reference. Now I can call the .Net methods from the VB macros. Is there a way to attach the Visual Studio 2013 debugger to the COM DLL? I tried to attach it to the Excel process but this didn't work.I created a .Net COM (Component Object Model) D