虽然我收到错误：

Error 2 The type or namespace name ‘ServiceController’ could not be found (are you missing a using directive or an assembly reference?) D:\App\Form1.cs 247 13 App

我的代码如下：

private void button13_Click(object sender,EventArgs e)
{
    ServiceController sc = new ServiceController("Spooler");

    if (sc.Status == ServiceControllerStatus.Running)
    {
        MessageBox.Show("The service is running.");
    }
}

我可能需要一个“使用”声明？