开机启动

using System;  
using System.Windows.Forms;  
using Microsoft.Win32;  
namespace RegistryUtil {  
       static class Program {  
              /// <summary>  
              /// 应用程序的主入口点。  
              /// </summary>  
              [STAThread]  
              static void Main() {  
                     Application.EnableVisualStyles();  
                     Application.SetCompatibleTextRenderingDefault(false);  
                     SetAutoBootStatu(true);  
              }  
   
              /// <summary>  
              /// 在注册表中添加、删除开机自启动键值  
              /// </summary>  
              public static int SetAutoBootStatu(bool isAutoBoot) {  
                     try {  
                            string execPath = Application.ExecutablePath;  
                            RegistryKey rk = Registry.LocalMachine;  
                            RegistryKey rk2 = rk.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Run");  
                            if (isAutoBoot) {  
                                   rk2.SetValue("MyExec", execPath);  
                                   Console.WriteLine(string.Format("[注册表操作]添加注册表键值：path = {0}, key = {1}, value = {2} 成功", rk2.Name, "TuniuAutoboot", execPath));  
                            } else {  
                                   rk2.DeleteValue("MyExec", false);  
                                   Console.WriteLine(string.Format("[注册表操作]删除注册表键值：path = {0}, key = {1} 成功", rk2.Name, "TuniuAutoboot"));  
                            }  
                            rk2.Close();  
                            rk.Close();  
                            return 0;  
                     } catch (Exception ex) {  
                            Console.WriteLine(string.Format("[注册表操作]向注册表写开机启动信息失败, Exception: {0}", ex.Message));  
                            return -1;  
                     }  
              }  
       }  
}

　　需要注意的是：
Windows中微软的注册表信息是分32位和64位的：
32位：HKEY_LOCAL_MACHINESOFTWAREMicrosoft
64位：HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoft

以下代码

RegistryKey rk = Registry.LocalMachine;  
RegistryKey rk2 = rk.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Run");  
rk2.SetValue("MyExec", execPath);  

在32位机器上执行，那么没有问题，变量会创建在HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun下。但是如果在64位机器上执行，会自动创建在
HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionRun

private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox1.Checked) //设置开机自启动  
            {
                MessageBox.Show ("设置开机自启动，需要修改注册表","提示");  
                string path = Application.ExecutablePath;
                RegistryKey rk = Registry.LocalMachine;
                RegistryKey rk2 = rk.CreateSubKey(@"SoftwareMicrosoftWindowsCurrentVersionRun");
                rk2.SetValue("JcShutdown", path);
                rk2.Close();
                rk.Close();
            }
            else //取消开机自启动  
            {
                MessageBox.Show ("取消开机自启动，需要修改注册表","提示");  
                string path = Application.ExecutablePath;
                RegistryKey rk = Registry.LocalMachine;
                RegistryKey rk2 = rk.CreateSubKey(@"SoftwareMicrosoftWindowsCurrentVersionRun");
                rk2.DeleteValue("JcShutdown", false);
                rk2.Close();
                rk.Close();
            }  
        }