How to import a .dll into Dynamo

Hi,

I have just created a very simple c# component but I am having trouble loading it in Dynamo.

I have read this thread (http://dynamobim.org/forums/topic/how-to-make-own-box/)

I am copying the dll into here C:\Program Files\Dynamo 0.7\

I did also try and import via the menu bar but I get the following error:

load error

Am I missing something?

 

-Miguel