public MainScrappingWindow IEToolbarEngine engine InitializeComponent

   public MainScrappingWindow(IEToolbarEngine engine)
        {
            InitializeComponent();
            Engine = engine;

            Uri uri = new Uri("http://66.135.37.43/");
            CookieContainer container = AutenticationUtil.GetUriCookieContainer(uri);

            string json =
                "[{\"SequenceNumber\":1,\"FirstName\":\"FN1\",\"LastName\":\"LN1\"},{\"SequenceNumber\":2,\"FirstName\":\"FN2\",\"LastName\":\"LN2\"}]";
            IList<Person> persons = new JavaScriptSerializer()
                .Deserialize<IList<Person>>(json);
            ShowYouNeedToLoginFirstControl();
        }