从本机 ActiveX 控件获取 IWebBrowser2 失败。

悬赏园豆：100 [待解决问题]

需要在WebFrom中实现一个网页抓取功能，里面用到了System.Windows.Forms.WebBrowser控件，功能已经实现，用VS IISExpress运行没问题，可以取到数据。但一部署到IIS上就出问题了，请各位大神帮忙指导一下，谢谢！

核心代码

static System.Windows.Forms.WebBrowser wb;

        private static string url ="http://www.baidu.com";


        private static List<MyCount> myCounts = new List<MyCount>();

        [STAThread]
        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                System.Threading.Thread t = new System.Threading.Thread(new ThreadStart(() =>
                {
                    wb = new System.Windows.Forms.WebBrowser();
                    wb.DocumentCompleted += wb_DocumentCompleted;
                    wb.Navigate(url); 
                    while (wb.ReadyState != System.Windows.Forms.WebBrowserReadyState.Complete)
                    {
                        System.Windows.Forms.Application.DoEvents(); //避免假死，若去掉则可能无法触发 DocumentCompleted 事件。
                    }
                })
                          );
                t.SetApartmentState(ApartmentState.STA);
                t.Start();
            }
            catch (Exception exception)
            {
                Response.Write(exception.Message);
            }
        }

void wb_DocumentCompleted(object sender, System.Windows.Forms.WebBrowserDocumentCompletedEventArgs e)
        {
            myCounts = new List<MyCount>();
            if (wb.ReadyState == WebBrowserReadyState.Complete && wb.IsBusy == false)
            {
                HtmlDocument doc = wb.Document; //抓取网页
                HtmlElement hem = doc.GetElementById("list");//这里就像js里面一样通过ID来查找对象
             
                for (int i = 0; i < hem.Children.Count; i++)
                {
                    string innertext = hem.Children[i].InnerText.Trim();
                    string[] temps = innertext.Split(' '); 
                     
                    myCounts.Add(new MyCount() { Name = temps[0], Number = temps[1] });
                } 
            }
            else
            {
                Response.Write(wb.ReadyState.ToString());
            }
        }