Free bittorrent client software for windows

Rufus is a Bittorrent client based on G3 Torrent.
Rufus is a very useful and powerful file transfer utility.
Whats New in This Release:
* d0c - Added Stop All torrents and Resume All torrents - small down arrow next to Stop and Resume buttons (req by Monk2000)
* d0c - Added download threshold setting to LeoXV choker - how much the peer has to download before choker is activated (req by Monk2000)
* d0c - Added Total Seed, Peer, Leech info to trayicon tooltip popup
* d0c - Added a check for multi-gzip error to zurllib - which was not as much work as I thought (req skee)
* d0c - Added SSL support (with gzip) for trackers - both announce and scrape (req wayno)
* d0c - Added tracker URL to masterlist (req by czesiu)
* d0c - Start/Resume and Pause/Requeue can be configured so that they dont move the torrents around anymore - look in prefs under Peer/Torrent List (req by sid32)
* d0c - Partial rewrite of g3peerid to remove redundant code
* d0c - Reorganised the search panel GUI - more intuitive having all the controls at the top.
* d0c - Fixed an annoyance in search panel settings where you would could fill out the settings and not be able to save them
* d0c - Fixed a few problems with unicode and user interface translation - though there are probably more... (thanks Stefan)
* d0c - Fixed a bug in the peerlist where if torrent paused or stopped the peerlist would unnecessarily continue to try to delete item listings that didnt exist
* d0c - Bug fix in multi-file manager - right-clicking on the checkboxes caused an error
* d0c - Bug fix in Rerequester - when tracker returned bencoded data without peer IP addresses (like a blacklisted port message) an error would occur - error introduced in 0.5.7
* d0c - Bug fix - Rufus now removes all whitespace from torrent announce strings as this would cause errors in scrape
* d0c - Removed *ALL* setdefaulttimeouts as they was causing read errors with SSL

ABC is an improved client for the Bittorrent peer-to-peer file sharing solution.
ABC is based on The Shad0ws Bittorrent experimental S-5.8.7 which extended from from Original Bittorrent Core System , coded by Bram Cohen.
Main features:
- Multiple downloads in single window
- ABC-Tweak to modify ABC display interface with yourself
- Queueing system with priority
- Supporing on-hold, pause, resume, queue, remove operations
- Minimize to taskbar
- Displaying torrent details and advanced details
- Supporting global setting such as maxport, minport, maxupload, upload transfer rate
- Supporting local setting for each torrent as well
- Supporting advanced setting from the Shad0ws bittorrent
- Supporing shad0ws super-seed mode
- Choosable upload options when download is done [unlimited, timer, sharesize]
- Torrent wont be blocked in queue, ABC will reduce torrents priority and force it to queue which user can set timer for these conditions
- if torrent cant connect tracker
- if torrent cant get any byte from other peers
- if seeding torrent has no one download
- Choosable number of simutaneous download
- Choosable between download to the specific folder or always ask for the folder
- Supporting manual adding torrent from both file and url
- Supporting automatic adding torrent from url (when you click on .torrent file)
- Including make torrent file program
- Displaying number of real peer, seed on tracker (for tracker that supports scrape data)
- Supporing add, delete, queue, pause, resume and query current torrent status via Web Interface

Bittorrent Speed Booster is a new add-on for P2P BitTorrent application to boost download speed of torrents and improve bandwidth usage when using Bittorrent in a large BitTorrent file sharing network. Bittorrent Speed Booster will speed up media files download and has a set of useful features to tightly integrate with native BitTorrent client. These features are: resuming of interrupted downloads, checksum validation to determine files downloaded with errors and removing of such incorrect files. Some additional configuration will add even more convenience to BitTorrent users ? it is easy to schedule automatic disconnection from the Internet or computer shutdown after all download tasks were successfully completed. Bittorrent Speed Booster is a small, but fast and useful utility with modern attractive interface and minimal requirement for OS and hardware. It is a FREEWARE, so enjoy boosted BitTorrent performance without spending a single cent!

TorrentVolve is a cross-platform PHP-driven web-based BitTorrent client. It focuses on speed and reliability, while also providing a full feature set.
This project includes a user management system, a Torrent file manager, and a configurable Torrent downloader.

uTorrent 2.0 beta 16850 is designed as a powerful and efficient BitTorrent client which includes most of the features present in other BitTorrent clients such as bandwidth prioritization, scheduling, RSS auto-downloading, and Mainline DHT.

Additionally, uTorrent supports the protocol encryption joint specification and peer exchange. Unlike many torrent clients, it does not hog valuable system resources--typically using less than 6MB of memory, allowing you to use the computer as if it weren't there at all.