Free torrent client software for windows

Torrent Swapper is an open source sociable peer to peer file-sharing client based on the Bittorrent protocol that is ideal for high-speed distribution of large files.
Torrent Swapper supports simultaneous downloads, port mapping, fast-resume, selected downloads in torrent package, , disk cache, download queue, speed limits, proxy, ip-filter.

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.

A feature rich Torrent client that allows users to manage Torrent downloads through a Web interface from anywhere TorrentFlux is a FREE PHP based Torrent client that runs on a web server.
TorrentFlux will allow you to manage all of your Torrent downloads through a convenient web interface from anywhere.
Main features:
- Upload Torrents via URL or File Upload
- Start, Stop, and Delete Torrents with a click
- Advanced Torrent start options (ports, speeds, etc.)
- Multi-user interface
- RSS Feeds, download Torrents files with a click
- View Download Progress of all torrents at a glance
- View drive space at a glance
- View Torrent file meta information
- Built-in User management and Security
- Private Messaging
- Themes (selectable per user)
- Upload History
- Detailed User Administration
- Admin Searchable Logs
- Advanced Torrent Search (many major sites included)
- Cookie support at the user level for private trackers
- Queue Manager
- Maketorrent -- supports making torrents
- Language Support
System requirements:
- Apache with PHP module
- MySQL Database

Torrent Harvester is a free and useful software that will preform a search for Torrents on multiple websites returning all results in a single list. Just enter some text to search on, press enter or click the search button and the list will fill with torrents found. Right clicking a torrent in the list will bring up a menu to download the torrent and start your BitTorrent client.
Torrent Harvester eliminates the need to use your web browser to check many Torrent sites if you are looking for a particular torrent. This means annoying pop-ups, advertising, spyware and virus threats are eliminated. Torrent Harvester is also flexible enough to allow for the addition of new search engines, and alteration of existing engines in the case of site redesign.
Main features:
- Easily searches a multitude of sites with a single click
- Returns all results in a single list
- Download directly from the list, or visit the website source page for complete details
- Complete filtering and sorting of results, on any column
- Automatically allows searching and downloading on sites which require user registration, using your systems cookies
- Complete downloading transparency, with an engine status screen which shows a comprehensive breakdown of exactly what pages Torrent Harvester is loading and the results from each page
- Get updates of engines directly from within Torrent Harvester
- Create your own engines for your favourite sites using the in-built Engine Designer, and create your own Torrent Harvester update website to distribute engines you create to other users
- Completely user-definable engines, allowing for creation of search engines for a multitude of different sites: Torrents, IRC, ED2k, Cracks, Keygens, Direct Downloads, etc.
- Complete help every step of the way.
- 88 Included engines, with more coming all the time via updates

Torrent SearchBar 1.9 is a convenient file sharing tool which is aslo a powerful, clean, fast, and easy-to-use BitTorrent search client. Torrent SearchBar supports simultaneous search from all major torrent sites in just one click. With the No1Torrent search engine you always get the best seeds of torrents easy.