System.Net.WebClient.DownloadFileAsync C# (CSharp) Method

        public void DownloadFileAsync(System.Uri address, string fileName) { }
        public void DownloadFileAsync(System.Uri address, string fileName, object userToken) { }

 public CCForm()
 {
     InitializeComponent();
     string UpdatorApp = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), @"Updator\\UpdatorCC.exe"); //odkaz na spoustec minecraftu
     string remoteUri1 = "http://files.customcraft.cz/";
     string fileName1 = "verze.txt", myStringWebResource = null;
     string misto1 = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), fileName1);
     WebClient verze1 = new WebClient();
     string App = "AppVerze.txt";
     string AppVerze = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), App);
     WebClient App1 = new WebClient();
     string spoustec1 = "AppVerze.txt";
     string spoustecweb1 = "Install\\AppVerze.txt";
     string spoustec = System.IO.File.ReadAllText(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), spoustec1)); //verze updatu na webu
     string spoustecweb = System.IO.File.ReadAllText(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), spoustecweb1)); //verze klienta
     if (spoustec == spoustecweb)
         {
             //vysere se na vše a pokračuje na CCFORM_Load
         }
     else
         {
             System.Diagnostics.Process.Start(UpdatorApp); //smaže složku Install a reinstaluje klienta
             Application.Exit();
         }
     myStringWebResource = remoteUri1 + fileName1;
     verze1.DownloadFileAsync(new Uri(myStringWebResource), misto1);
     //stažení verze klienta z webu
     myStringWebResource = remoteUri1 + fileName1;
     verze1.DownloadFileAsync(new Uri(myStringWebResource), AppVerze);
     //Stažení verze spouštěče k aktualizaci
 }