{

          RegCompStartRun(true, txtFullPath.Text.Trim());

      }

      private void btnCancel_Click(object sender, EventArgs e)

      {

          RegCompStartRun(false, txtFullPath.Text.Trim());

      }

      private void RegCompStartRun(bool cmd, string argPath)

      {

          string starupPath = argPath;

          if (string.IsNullOrEmpty(argPath))

          {

              //獲取當前可執行程序的全路徑

              starupPath = Application.ExecutablePath;

          }

          //表示Window注冊表中項級節點,讀取 Windows 注冊表基項HKEY_LOCAL_MACHINE

          Microsoft.Win32.RegistryKey loca = Microsoft.Win32.Registry.LocalMachine;

          Microsoft.Win32.RegistryKey run = loca.CreateSubKey(@"SOFTWARE/Microsoft/Windows/CurrentVersion/Run");

          try

          {

              //SetValue:存儲值的名稱

              if (cmd)

              {

                  run.SetValue("AutoStartupTestWinFormApp", starupPath);//加入注冊，參數一為注冊節點名稱(隨意)  

                  lblDisplay.Text = "設置成功!";

              }

              else

              {

                  run.DeleteValue("AutoStartupTestWinFormApp", false);//刪除該注冊節點    

                  lblDisplay.Text = "取消設置成功!";

              }

              loca.Close();

          }

          catch (Exception ee)

          {

              MessageBox.Show(ee.Message.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);

          }

      }