public void ConstructPlugin()
        {
            //BIDSHelperPluginBase pi;
            System.Type[] @params = { typeof(DTE2), typeof(AddIn) };
            System.Reflection.ConstructorInfo con;

            con          = pluginType.GetConstructor(@params);
            pi           = (BIDSHelperPluginBase)con.Invoke(new object[] { _applicationObject, _addInInstance });
            pi.AddinCore = _core;
            //addins.Add(ext.FullName, ext);

            if (pi is IWindowActivatedPlugin)
            {
                ((IWindowActivatedPlugin)pi).HookWindowActivation();
            }
            pi.AddCommand();
        }