System.Windows.Deployment.AssemblyGetResponse C# (CSharp) Method

		void AssemblyGetResponse (IAsyncResult result)
		{
			object[] tuple = (object []) result.AsyncState;
			WebRequest wreq = (WebRequest) tuple [0];
			int error_code = (int) tuple [1];
			try {
				HttpWebResponse wresp = (HttpWebResponse) wreq.EndGetResponse (result);

				if (wresp.StatusCode != HttpStatusCode.OK) {
					wresp.Close ();
					EmitError (error_code, String.Format ("Error while downloading the '{0}'.", wreq.RequestUri));
					return;
				}

				if (wresp.ResponseUri != wreq.RequestUri) {
					wresp.Close ();
					EmitError (error_code, "Redirection not allowed to download assemblies.");
					return;
				}

				Stream responseStream = wresp.GetResponseStream ();

				AssemblyPart a = new AssemblyPart ();
				Assembly asm = a.Load (responseStream);

				if (asm == null) {
					// it's not a valid assembly, try to unzip it.
					using (MemoryStream ms = new MemoryStream ()) {
						ManagedStreamCallbacks source_cb;
						ManagedStreamCallbacks dest_cb;
						StreamWrapper source_wrapper;
						StreamWrapper dest_wrapper;

						responseStream.Seek (0, SeekOrigin.Begin);

						source_wrapper = new StreamWrapper (responseStream);
						dest_wrapper = new StreamWrapper (ms);

						source_cb = source_wrapper.GetCallbacks ();
						dest_cb = dest_wrapper.GetCallbacks ();

						// the zip files I've come across have a single file in them, the
						// dll.  so we assume that any/every zip file will contain a single
						// file, and just get the first one from the zip file directory.
						if (NativeMethods.managed_unzip_stream_to_stream_first_file (ref source_cb, ref dest_cb)) {
							ms.Seek (0, SeekOrigin.Begin);
							asm = a.Load (ms);
						}
					}
				}

				wresp.Close ();

				if (asm != null)
					Dispatcher.BeginInvoke (new AssemblyRegistration (AssemblyRegister), asm);
				else
					EmitError (2153, String.Format ("Error while loading '{0}'.", wreq.RequestUri));
			}
			catch (Exception e) {
				// we need to report everything since any error means CreateApplication won't be called
				EmitError (error_code, e.ToString ());
			}
		}