C#使用ServiceController控制类Windows服务，添加首次使用前引文：System.ServiceProcess，空间中引用：using System.ServiceProcess。

以下示例获取本机已安装的Windows服务和应用，然后查找某一应用活服务是否已经安装。

代码：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.ServiceProcess;

namespace 判断机器中是否安装了某项服务或者应用

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        ServiceController[] Services = ServiceController.GetServices();

        private bool ExistSth()

        {

            bool exist = false;

            for (int i = 0; i < Services.Length; i++)

            {

                if (Services[i].DisplayName.ToString() == textBox1.Text.Trim())

                    exist = true; 

            }

            return exist;

        }

        private void button1_Click(object sender, EventArgs e)

        {

            if (ExistSth())

                MessageBox.Show("已安装");

            else

                MessageBox.Show("未安装");

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            for (int i = 0; i < Services.Length; i++)

                listBox1.Items.Add(Services[i].DisplayName.ToString());

        }

    }

}

如果某一服务名为ServicesName, 编写开始服务、停止服务、重新启动服务的代码如下：

private ServiceController _controller;

private void StopService()

{

    this._controller = new ServiceController("ServicesName");

    this._controller.Stop();

    this._controller.WaitForStatus(ServiceControllerStatus.Stopped);

    this._controller.Close();

}

private void StartService()

{

    this._controller = new ServiceController("ServicesName");

    this._controller.Start();

    this._controller.WaitForStatus(ServiceControllerStatus.Running);

    this._controller.Close();

}

private void ResetService()

{

    this._controller = new ServiceController("ServicesName");

    this._controller.Stop();

    this._controller.WaitForStatus(ServiceControllerStatus.Stopped);

    this._controller.Start();

    this._controller.WaitForStatus(ServiceControllerStatus.Running);

    this._controller.Close();

}