winfrom中的webbrowser内核版本修改

          
     private void Form1_Load(object sender, EventArgs e)
        {

            SetWebBrowserFeatures(11);          
        }


 static void SetWebBrowserFeatures(int ieVersion)
        {
            // don‘t change the registryif running in-proc inside Visual Studio 
            if (LicenseManager.UsageMode != LicenseUsageMode.Runtime) return;
            //获取程序及名称  
            var appName = System.IO.Path.GetFileName(System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName);
            //得到浏览器的模式的值 
            UInt32 ieMode = GeoEmulationModee(ieVersion);
            var featureControlRegKey = @"HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\";
            //设置浏览器对应用程序（appName）以什么模式（ieMode）运行  
            Registry.SetValue(featureControlRegKey + "FEATURE_BROWSER_EMULATION", appName, ieMode, RegistryValueKind.DWord);
            // enable the features which are "On" for the full Internet Explorer browser  //不晓得设置有什么用  
            Registry.SetValue(featureControlRegKey + "FEATURE_ENABLE_CLIPCHILDREN_OPTIMIZATION", appName, 1, RegistryValueKind.DWord);
        }

        static int GetBrowserVersion()
        { 
             int browserVersion = 0; 
             using (var ieKey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Internet Explorer", RegistryKeyPermissionCheck.ReadSubTree, System.Security.AccessControl.RegistryRights.QueryValues)) { var version = ieKey.GetValue("svcVersion"); 
                 if (null == version)
                 { 
                     version = ieKey.GetValue("Version");
                     if (null == version) throw new ApplicationException("Microsoft Internet Explorer is required!"); 
                 } 
                 int.TryParse(version.ToString().Split(‘.‘)[0], out browserVersion); } //如果小于7 
             if (browserVersion