Microsoft.Web.Administration.ServerManager启用IIS的ISAPI

 const string isAPI_partialPath = @"v4.0.30319\aspnet_isapi.dll";
        static void Main(string[] args)
        {
            ServerManager svrMgr = new ServerManager();
            Configuration config = svrMgr.GetApplicationHostConfiguration();


            ConfigurationSection section = config.GetSection("system.webServer/security/isapiCgiRestriction");


            foreach (ConfigurationElement item in section.GetCollection())//这里是GetCollection(),不是ChildElement。诸如<add />的标签是集合不是它的子元素
            {
                if (item.Attributes.Count > 0 && item.Attributes["path"].Value != null && item.Attributes["path"].Value.ToString().EndsWith(isAPI_partialPath))
                {
                    item.Attributes["allowed"].Value = true;
                }
            }

            svrMgr.CommitChanges();
        }