c#在线程中打开类似msn的消息提示窗口

  // 启动线程  
 private void button2_Click(object sender, System.EventArgs e)
   {
    Thread receivex = new Thread(new ThreadStart(this.showwiindow));
    receivex.Start();
    Thread.Sleep(6000);
   }

  delegate void showwiindowHandler();
  private void showwiindow()
  {
   if (this.InvokeRequired)
   {
    showwiindowHandler si = new showwiindowHandler(this.showwiindow);
    this.BeginInvoke(si, new object[0]);
    return;      //这里要返回，把函数调用权交给this的创建线程
   }

   //这里是其它的代码  调用类似msn的消息提示窗口
   Message form=new Message();
   form.HeightMax=120;
   form.WidthMax=148;
   form.ScrollShow();
  }