BitTorrent is a protocol for distributing files. It identifies content by URL and is designed to integrate seamlessly with the Web. Its advantage over plain HTTP is that when multiple downloads of the same file happen concurrently, the downloaders upload to each other, making it possible for the file source to support very large numbers of downloaders with only a modest increase in its load.

BitSpirit is a powerful and easy-to-use BitTorrent client which provides not only full BitTorrent protocol implementation, but also many personalized features. It supports simultaneous downloads, download queue, UPNP port-maping, NAT traversal (UDP transport), select downloads from multiple files torrent package, disk cache, chatting with other peers, torrent market, ip-filter, etc. In 3.0 or above versions of BitSpirit, it also supports DHT network, which is based on Kademlia protocol and fully compatible with Bittorrent official client.

WindowBlinds is a program that that enables Windows users to completely change the look and feel of the Windows user interface. Users customize Windows by using visual styles (skins) created for WindowBlinds.