/// <summary>
        /// 利用 WinRAR 进行压缩
        /// </summary>
        /// <param name="Path">将要被压缩的文件夹（绝对路径）</param>
        /// <param name="RarPath">压缩后的 .rar 的存放目录（绝对路径）</param> 
        /// <param name="RarName">压缩文件的名称（包括后缀）</param>
        /// <param name="RarPass">压缩文件的密码</param>
        /// <returns>true 或 false。压缩成功返回 true，反之，false。</returns> 
        public static bool RAR(string Path, string RarPath, string RarName, string RarPass)
        {
            bool Flag = false;

            try
            {
                string Rarexe = System.Windows.Forms.Application.StartupPath + @"\WinRAR.exe"; //WinRAR.exe 的完整路径
                Directory.CreateDirectory(Path);  //压缩命令，相当于在要压缩的文件夹(path)上点右键->WinRAR->添加到压缩文件->输入压缩文件名(rarName)  
                string Cmd = string.Format("a -ag日期yyyy年mm月dd日hh时mm分 {0} {1} -r -p{2}", RarName, Path, RarPass); //WinRAR 命令参数 
               
                ProcessStartInfo Startinfo = new ProcessStartInfo();
                Startinfo.FileName = Rarexe;
                Startinfo.Arguments = Cmd;                          //设置命令参数  
                Startinfo.WindowStyle = ProcessWindowStyle.Hidden;  //隐藏 WinRAR 窗口   
                Startinfo.WorkingDirectory = RarPath;
                
                Process Process = new Process();
                Process.StartInfo = Startinfo;
                Process.Start();
                Process.WaitForExit(); //无限期等待进程 winrar.exe 退出      

                if (Process.HasExited)
                {
                    Flag = true;
                }

                Process.Close();
            }
            catch (Exception e)
            {
                throw e;
            }
            return Flag;
        }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.ServiceProcess;
using System.Text;
using System.IO;
using Microsoft.Win32;
using System.Data.OleDb;
using System.Threading;

namespace ServBackupTask
{
    partial class ServBackupTask : ServiceBase
    {
        public ServBackupTask()
        {
            InitializeComponent();
        }

        System.Timers.Timer TimerBackupTask = new System.Timers.Timer(30000);

        protected override void OnStart(string[] args)
        {
            // TODO: 在此处添加代码以启动服务。
            //使时间控件生效 并且1秒钟调用一次TimerBackupTask_Elapsed() 方法
            TimerBackupTask.Elapsed += new System.Timers.ElapsedEventHandler(TimerBackupTask_Elapsed);
            TimerBackupTask.AutoReset = true;
            TimerBackupTask.Enabled = true;
        }

        protected override void OnStop()
        {
            // TODO: 在此处添加代码以执行停止服务所需的关闭操作。
        }

        private void TimerBackupTask_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            //暂停计时
            TimerBackupTask.Enabled = false;
            //当前时间
            DateTime NowTime = DateTime.Now;
            //连接字符串
            string OleConStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + System.Windows.Forms.Application.StartupPath + @"\DataBackup.mdb";
            //查询语句
            string Olestring = "select * from BackupTask Where " + "Cstr(Format(StartTime, 'HH:mm'))='" + NowTime.ToString("HH:mm") + "'";

            using (OleDbConnection OleConn = new OleDbConnection(OleConStr))
            {
                try
                {
                    OleConn.Open()