You can find lots of things here and from Smiler's BitTorrent links.

Please read this FAQ to see if it solves your problem, and if that doesn't work try this FAQ. If that doesn't help, post a question to the technical support mailing list. Be sure to mention what operating system you're running, the url of the file you're trying to download, what version of BitTorrent you're running, and explain exactly what behavior you're seeing.

Do not post questions about where to find files or announcements of files being avialable to this mailing list. For that, try using a search engine.

You can give a donation.

Pieces of the file you're currently downloading. BitTorrent trades pieces you have with pieces your peers have.

You could hack the source to not upload, but then your download rate would suck. BitTorrent downloaders engage in tit-for-tat with their peers, so leeches have very little success downloading.

The tracker for the one particular file you're trying to download is probably down. Try to download again later.

Alternately, this error message may indicate that your net connection is down or doesn't allow arbitrary outgoing connections, which is necessary for BitTorrent to work.

If you have a DSL modem, especially an Alcatel, you should upgrade your drivers. If you have a Linksys network card, you may have to upgrade your network card drivers as well.

This problem was recently fixed. You should install the latest version.

After installing MacPython, you should be able to use btdownloadheadless.py from the source.

Yes, just save your download to the same location as the existing partial download. BitTorrent will resume where it left off after checking the partial download.

Just leave BitTorrent running after it's done downloading. If you already have the complete file(s), restart downloading and resume to the existing file(s).

BitTorrent does cryptographic hashing (SHA1) of all data. When you see "Download succeeded!" you can be sure that BitTorrent has already verified the integrity of the data. The integrity and authenticity of a BitTorrent download is as good as the original request to the tracker. Checking the MD5/CRC32/other hash of a file downloaded via BitTorrent is redundant.

Yes, but you will get better performance if other peers can connect to you. See here for detailed instructions on how to allow incoming BitTorrent connections.

For very popular files, BitTorrent can support roughly a thousand times as many downloads as http can. Recent changes may change this to ten thousand.

You need to leave at least one downloader running which already has the whole file. Make sure other peers can connect to this downloader (preferably not behind firewall or NAT!)

If your tracker and downloader are on the same machine or within the same private IP range, you need to start the downloader with the --ip parameter, followed by it's public IP. Otherwise "localhost" could be assumed.

Python. And it uses wxWindows for its GUI.

See the BitTorrent ports mailing list.

Use the --max_upload_rate command line parameter, which takes an upload rate in kilobytes/sec.

No, BitTorrent contains no spyware, adware, or any other kind of -ware.

Some warez sites are distributing spyware-wrapped versions of the BitTorrent installer. Please only download the BitTorrent installer from this site.

MIT License, which basically lets you do anything you want with it so long as you leave the license notification in the source.

There are btdownloadheadless.py, btdownloadcurses.py and others available in the source distribution.

You can send a check or money order to:

Bram Cohen
227 Bellevue Way NE Suite 152
Bellevue, WA 98004

If you're looking for information on where to find files downloadable using BitTorrent, try using a search engine.

If you have a development or technical support question, see the documentation page, the development mailing list, or join #bittorrent on irc.freenode.net. (I repeat, this channel is not for file distribution!)