public static ApplicationSettings Load()
        {
            var settings = new ApplicationSettings();

            using (var store = IsolatedStorageFile.GetUserStoreForApplication())
            {
                if (!store.FileExists(FileName))
                    return settings;

                using (var isoStream = store.OpenFile(FileName, FileMode.Open))
                {
                    var s = new XmlSerializer(typeof(ApplicationSettings));
                    using (var rd = new StreamReader(isoStream))
                    {
                        settings = (ApplicationSettings)s.Deserialize(rd);
                    }

                    return settings;
                }
            }
        }
 public static void Reload()
 {
     _instance = Load();
 }