Aufruf:
        ArrayList my = new ArrayList();
        csHDD.LoadObject(sFile, out my);
Function:
   public static object LoadObject(string sFile, out Object LoadedObject )
   {
      string pfad;
      try
      {
         pfad = Environment.GetFolderPath( _
           Environment.SpecialFolder.ApplicationData)+Path.DirectorySeparatorCh_
           ar+Application.ProductName+Path.DirectorySeparatorChar+sFile;
         try
         {
            FileStream sr = File.Open(pfad, FileMode.Open);
            BinaryFormatter ser = new _
              System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
            LoadedObject = ser.Deserialize(sr);
         }
         catch(FormatException)
         {
            LoadedObject  = null;
         }
         finally
         {
            //sr.Close();
         }
      }
      catch(Exception e)
      {
         MessageBox.Show(e.Message);
         LoadedObject  = null;
         //sr.Close();
      }
   }