c#写的sql Server数据库自动备份程序

这几天写了一个xp下安装sql Server 2005 express版本的数据库自动备份程序，大家看看若是有觉得不合理的地方欢迎指正

[csharp]

[csharp]

[csharp]
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using Microsoft.Win32;
using System.Diagnostics;

namespace CPU卡表数据库备份程序
{
    public partial class Config : Form
    {
        public Config()
        {
            InitializeComponent();
        }

        private void Config_Load(object sender, EventArgs e)
        {
            //this.Cb_Hour.SelectedIndex = 0;
            //this.Cb_Minute.SelectedIndex = 0;
            string Dir_Source = GetValue("Dir");
            this.Txt_DirSource.Text = Dir_Source;
            string Hour = GetValue("Hour").Trim();
            string Minute = GetValue("Minute").Trim();
            this.Cb_Hour.Text = Hour;
            this.Cb_Minute.Text = Minute;
            string AutoRun = GetValue("AutoRun");
            if (AutoRun.Trim() == "false")
            {
                this.CheckBox_AutoRun.Checked = false;
            }
            else
            {
                this.CheckBox_AutoRun.Checked = true;
            }
        }

        private void Txt_DirSource_MouseClick(object sender, MouseEventArgs e)
        {
            FolderBrowserDialog dialog = new FolderBrowserDialog();
            dialog.Description = "请选择备份路径";
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                this.Txt_DirSource.Text = dialog.SelectedPath;
            }
            else
            {
                return;
            }
        }

        private void Btn_SetDir_Click(object sender, EventArgs e)
        {
            //首先判断目录是否存在
            string Dir_Source = this.Txt_DirSource.Text.Trim();
            if (Dir_Source == "" || Directory.Exists(Dir_Source) == false)
            {
                MessageBox.Show("备份目录设置有误，请查证", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                SetValue("Dir", Dir_Source);
                MessageBox.Show("备份目录设置为"+Dir_Source,"提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
                return;

            }

        }
        /// <summary>
        /// 设置程序开机启动
        /// 或取消开机启动
        /// </summary>
        /// <param name="started">设置开机启动，或者取消开机启动</param>
        /// <param name="exeName">注册表中程序的名字</param>
        /// <param name="path">开机启动的程序路径</param>
        /// <returns>开启或则停用是否成功</returns>
        public static bool runWhenStart(bool started, string exeName, string path)
        {
            RegistryKey key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);//打开注册表子项
            if (key == null)//如果该项不存在的话，则创建该子项
            {
                key = Regis

补充：软件开发 , C# ,