安装包中，属性的配置问题

  请问大虾，我要配置IIS 的网站中的 "应用程序名" 和 选中目录安全性下面的"集成Windows 身份验证"。先有代码如下：
 public void CreateWebSite(string serverID, string serverComment, string defaultVrootPath, string HostName, string IP, string Port) 
        { 
            try 
            { 
                ManagementObject oW3SVC = new ManagementObject(_scope, new ManagementPath(@"IIsWebService='W3SVC'"), null); 
                if (IsWebSiteExists(serverID)) 
                { 
                    throw new ApplicationException("站点已经存在"); 
                } 
                ManagementBaseObject inputParameters = oW3SVC.GetMethodParameters("CreateNewSite"); 
                ManagementBaseObject[] serverBinding = new ManagementBaseObject[1]; 
                serverBinding[0] = CreateServerBinding(HostName, IP, Port); 
                inputParameters["ServerComment"] = serverComment; 
                inputParameters["ServerBindings"] = serverBinding; 
                inputParameters["PathOfRootVirtualDir"] = defaultVrootPath; 
                inputParameters["ServerId"] = serverID;                 ManagementBaseObject outParameter = null; 
                outParameter = oW3SVC.InvokeMethod("CreateNewSite", inputParameters, null); 
                // 启动网站 
                string serverName = "W3SVC/" + serverID; 
                ManagementObject webSite = new ManagementObject(_scope, new ManagementPath(@"IIsWebServer='" + serverName + "'"), null); 
                webSite.InvokeMethod("Start", null);                 DirectoryEntry MySite = new DirectoryEntry("IIS://localhost/" + serverName); 
                MySite.Properties["AuthAnonymous"][0] = true;//允许匿名访问 
                MySite.Properties["AccessScript"][0] = true;//脚本可执行 
                MySite.Properties["AspEnableParentPaths"][0] = true;//允许父路径 
                MySite.CommitChanges(); 
            } 
            catch (Exception ex) 
            { 
                throw new ApplicationException(ex.Message); 
            } 
        }