I would like to connect my C# standalone application to a running solidwork session. I've tried to use

SldWorks swApp = Activator.CreateInstance(Type.GetTypeFromProgID("SldWorks.Application")) as SldWorks;
swApp.Visible = true;

suggested on here. From what I understand this should create a solidwork session if theres none and join the latest if there is one. But that seem to create a new instance of solidworks ie a new window, separate from the current running one. This page uses CreateObject() but that's for VBA and I could not find a similar method for C#.

I can verify the number of SLDWORK.exe running using

          Process[] pro = Process.GetProcessesByName("SLDWORKS");

Am I doing the right thing or is there another way of connecting to solidworks?

EDIT: Possibly useful information, this was observed on both visual studio 2010 and 2012. Built for 64bit application.