C#windows服务问题

在vs2010用C# 写了个windows服务，在XP下可以安装运行，但拿到win8下安装的时候就出现了问题，后来查到是windows系统权限的问题，解决之后可以安装了，但安装成功后服务启动之后还是运行不了，不知道问题出在哪里，哪位大神来帮忙看下问题所在？using System;
using System.ServiceProcess;
using System.Configuration;
using System.IO;namespace WinServCX
{
    public partial class Service1 : ServiceBase
    {
        public Service1()
        {
            InitializeComponent();
        }        protected override void OnStart(string[] args)
        {
            string qqpath = ConfigurationSettings.AppSettings["QQ"];
            string alipath = ConfigurationSettings.AppSettings["aliwangwang"];
            string leibaopath = ConfigurationSettings.AppSettings["leibao"];
            string folderpath = ConfigurationSettings.AppSettings["folder"];            try
            {
                System.Diagnostics.Process.Start(qqpath);
                System.Diagnostics.Process.Start(alipath);
                System.Diagnostics.Process.Start(leibaopath);
                System.Diagnostics.Process.Start(folderpath);
                using (StreamWriter sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + @"servrun_log.txt", true))
                {
                    sw.WriteLine(DateTime.Now + " 服务启动成功！" + "\r\n");
                }
            }            catch(Exception ex)
            {
                using(StreamWriter sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + @"service_log.txt",true))
                {
                    sw.WriteLine(DateTime.Now + ex.Message + "\r\n");
                }
                this.Dispose();
            }
        }        protected override void OnStop()
        {
            this.Dispose();
            using (StreamWriter sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + @"servstop_log.txt", true))
            {
                sw.WriteLine(DateTime.Now + " 服务卸载成功！" + "\r\n");
            }
        }
    }
}C#Windows服务Windows 8