/// <summary> /// Uns the extend. /// </summary> /// <param name="webApp">The web app.</param> /// <param name="zone">The zone.</param> /// <param name="deleteIis">if set to <c>true</c> [delete IIS].</param> public static void UnExtend(SPWebApplication webApp, SPUrlZone zone, bool deleteIis) { webApp.UnprovisionGlobally(deleteIis); webApp.IisSettings.Remove(zone); if (zone != SPUrlZone.Default) { webApp.AlternateUrls.UnsetResponseUrl(zone); webApp.AlternateUrls.Update(); } webApp.Update(); }