MS Visual Studio NET : Civil 3D and custom references copied local

There is no need for Civil 3D DLL references to be copied local and they should not be.
But other custom DLLs, that are referenced by custom Civil 3D DLL, should be.
Or else when in Civil 3D custom Civil 3D DLL is loaded but no command is executed.
A Line Editor message informs that command is unkonwn !!!

About 64 bit debugging and Edit & continue...

https://cadblognews.com/2016/05/11/debugging-autocad-2017-using-visual-studio-2015/

http://adndevblog.typepad.com/autocad/2016/05/debugging-autocad-2017-using-visual-studio-2015.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+AutocadDevblog+%28AutoCAD+DevBlog%29

http://through-the-interface.typepad.com/through_the_interface/2013/11/debugging-autocad-using-visual-studio-2013.html