r2d2rigo

// This sample function uses SharpZipLib (http://icsharpcode.github.io/SharpZipLib/) to extract 
// a zip file without blocking Unity's main thread. Remember to call it with StartCoroutine().
// Byte data is passed so a MemoryStream object is created inside the function to prevent it 
// from being reclaimed by the garbage collector.

public IEnumerator ExtractZipFile(byte[] zipFileData, string targetDirectory, int bufferSize = 256 * 1024)
{
    Directory.CreateDirectory(targetDirectory);

    using (MemoryStream fileStream = new MemoryStream())

r2d2rigo

using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;
using System.Threading.Tasks;

public class AsyncHttpWebRequest
{
    private HttpWebRequest webRequest;