private void loadDataWorker_DoWork(object sender, DoWorkEventArgs e)
{
var worker = sender as BackgroundWorker;
cascHandler = Settings.Default.OnlineMode
? CASCHandler.OpenOnlineStorage(worker)
: CASCHandler.OpenLocalStorage(Settings.Default.WowPath, worker);
root = LoadListFile(cascHandler, Path.Combine(Application.StartupPath, "listfile.txt"), worker);
e.Result = CASCHandler.FileNames.Count;
}