static void Main()
  {
  Application.Run(new Form1());
  }
  [DllImport("kernel32.dll")]
  public static extern bool WinExec(string CmdLine,int uCmdShow);                 
  public const int SW_RESTORE=9;
  private void button1_Click(object sender, System.EventArgs e)
  {//啟動控制面板
    WinExec("rundll32.exe shell32.dll,Control_RunDLL",SW_RESTORE); 
  }
  private void button2_Click(object sender, System.EventArgs e)
  {//啟動顯示屬性\桌面
    WinExec("rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,0",SW_RESTORE);
  }
  private void button3_Click(object sender, System.EventArgs e)
  {//啟動顯示屬性\屏幕保護程序
    WinExec("rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,1",SW_RESTORE);
  }
  private void button4_Click(object sender, System.EventArgs e)
  {//設置顯示屬性\設置
    WinExec("rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,3",SW_RESTORE);
  }
}
}