程序代码：

using System;
using System.Collections.Generic;
using using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.ServiceProcess;
using System.Management;
using Microsoft.Win32;

namespace WindowsApplication4
{
    public partial class Form1 : Form
    {
        public static string path = String.Empty;
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            ServiceIsExisted("360rp");
            if (path!="")
            {
                MessageBox.Show(path);
            }
        }
        private bool ServiceIsExisted(string serviceName)
        {
            ServiceController[] services = ServiceController.GetServices();
            foreach (ServiceController s in services)
            {
                if (s.ServiceName == serviceName)
                {
                    if (FilePath(s.ServiceName)!="")
                    {
                        path = FilePath(s.ServiceName);
                    }
                    return true;
                }
            }
            return false;
        }
        public string FilePath(string serviceName)
        {


                RegistryKey _Key = Registry.LocalMachine.OpenSubKey(@"SYSTEM\ControlSet001\Services\" + serviceName);
                if (_Key != null)
                {
                    object _ObjPath = _Key.GetValue("ImagePath");
                    if (_ObjPath != null) return _ObjPath.ToString();
                }
                return "";
           
        }

    }

}

WindowsApplication4.rar (31.32 KB)