HttpClient client = new HttpClient();

var operation = client.GetAsync(new Uri("http://opendevstefano.altervista.org/Database1.db" + "?random=" + DateTime.Now.Ticks.ToString(), UriKind.Absolute));

 HttpResponseMessage responde = await operation;
 responde.EnsureSuccessStatusCode();

 IBuffer bufferprogress = await responde.Content.ReadAsBufferAsync();

fileDataBase = await ApplicationData.Current.LocalFolder.CreateFileAsync("DatabaseMusei.db", CreationCollisionOption.ReplaceExisting);

 IRandomAccessStream accessStreamDatabase = await fileDataBase.OpenAsync(FileAccessMode.ReadWrite);

 using (IOutputStream outputStream = accessStreamDatabase.GetOutputStreamAt(0))
     {
            DataWriter writer = new DataWriter(outputStream);
            writer.WriteBuffer(bufferprogress);
            await writer.StoreAsync();
             await writer.FlushAsync();
     }

   mussAll = new SQLiteAsyncConnection("DatabaseMusei.db");