闪电下载器是一款基于TCP/IP协议的下载软件，它可以提供多任务多线程下载及断点续传功能，用户可以使用它在互联网上自由的下载软件。(Lightning Downloader is a TCP/IP based protocol to download software, it can provide multi tasking multi-threaded downloads and HTTP functionality, users can use it on the Internet fre