public void Start()
{
if (this._started)
{
throw new InvalidOperationException("Already started.");
}
this._started = true;
this._thread = ScriptHost.CreateThread(new ParameterizedThreadStart(this.Worker));
this._thread.Priority = ThreadPriority.BelowNormal;
this._thread.SetApartmentState(ApartmentState.STA);
this._thread.Start();
}