IISのWebSiteをC#で削除する

        public static void DeleteWebSite(string machineName, string webSiteName)

        {

            IisWebSite webSite = GetSite(machineName, webSiteName);

            if (webSite == null)

            {

                throw new Exception(String.Format("Site {0} does not exist.", webSiteName));

            }

            string IISPath = String.Format(IIS_ROOT, machineName) + "/" + webSite.Id;

            DirectoryEntry de = new DirectoryEntry(IISPath);

            de.RefreshCache();

            de.DeleteTree();

            de.Close();

        }