StopSubdirsMonitor

    public static void StopSubdirsMoniter()
    {
      PropertyInfo p = typeof(System.Web.HttpRuntime).GetProperty("FileChangesMonitor", BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
      object o = p.GetValue(null, null);
      FieldInfo f = o.GetType().GetField("_dirMonSubdirs", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.IgnoreCase);
      object monitor = f.GetValue(o);
      MethodInfo m = monitor.GetType().GetMethod("StopMonitoring", BindingFlags.Instance | BindingFlags.NonPublic);
      m.Invoke(monitor, new object[] {});
    }