private async void button1_Click(object sender, RoutedEventArgs e) { Chilkat.Http http = new Chilkat.Http(); if (!checkUnlocked()) { return; } http.ReceiveRate += Http_ReceiveRate; http.ProgressInfo += Http_ProgressInfo; http.PercentDone += Http_PercentDone; StorageFolder folder = ApplicationData.Current.LocalFolder; //textBox1.Text = folder.Path; http.VerboseLogging = true; bool success = await http.DownloadAsync("https://chilkatdownload.com/9.5.0.76/chilkatax-9.5.0-win32.zip", folder.Path + @"\chilkatAx.zip"); textBox1.Text = http.LastErrorText; }