Async Controller - IndexAsync()

IndexAsync.cs

 public void IndexAsync()
        {
            AsyncManager.OutstandingOperations.Increment(2);

            Task.Factory.StartNew(() =>
                                      {
                                          // Perform some expensive operation
                                          string uri = "http://www.deanhume.com";

                                          WebClient client = new WebClient();
                                          string reply = client.DownloadString(uri);

                                          AsyncManager.Parameters["data"] = reply;
                                          AsyncManager.OutstandingOperations.Decrement();
                                      });
            Task.Factory.StartNew(() =>
                                      {
                                          // Perform another expensive operation
                                          string uri = "http://www.deanhume.com/home/about";

                                          WebClient client = new WebClient();
                                          string reply = client.DownloadString(uri);

                                          AsyncManager.Parameters["moredata"] = reply;
                                          AsyncManager.OutstandingOperations.Decrement();
                                      });
        }