BitComet client version 1.40 running on Windows 10 | |
Developer(s) | BitComet Development Group (China)[1] |
---|---|
Initial release | August 6, 2003; 16 years ago |
Stable release | 1.57 (May 8, 2019; 3 months ago)[±][2] |
Preview release | None (n/a)[±] |
Written in | C++[citation needed] |
Operating system | Windows 2000 and later |
Available in | 52 languages[3] |
Type | BitTorrent client |
License | Adware |
Website | bitcomet.com |
BitComet is the first client to solve this issue by caching data in the memory, and thus accessing your hard drive less often. Preview while Downloading When BitComet is downloading video files, it will automatically try to download the header and the tail of the file as soon as possible. Vip.bitcomet has a poor activity level in Twitter with only 3 mentions. Such a result may indicate a lack of SMM tactics, so the domain might be missing some of its potential visitors from social networks. A few months before that, BitComet introduced another noteworthy feature called VIP-downloading, which enables users to download torrents that are accelerated by BitComet’s servers.
BitComet (originally named SimpleBT client from versions 0.11 to 0.37) is a cross-protocol BitTorrent, HTTP and FTPclient written in C++ for Microsoft Windows and available in 52 different languages.[4] Its first public release was version 0.28. The current BitComet logo has been used since version 0.50.[5]
The BitComet program is a multi-threaded multi-protocol hybrid download manager and BitTorrentpeer-to-peer (P2P) file-sharing application. It supports simultaneous download tasks. To complete a particular download, it can draw parts of files from many sources across different P2P and client–server protocols.
BitComet's main features include an embedded Internet Explorer window to let users search for torrents. Along with the features typical of contemporary BitTorrent clients, it supports UPnP gateway configuration, bandwidth scheduling, Webseeding, selecting only certain files for download inside a torrent package, NAT traversal (removed in v.1.03),[6]Peer Exchange (in older versions, using a proprietary protocol and starting with v.1.19 also by using the Extension Protocol, implementing a PEX mechanism compatible with µTorrent / Mainline PEX),[7] Initial-Seeding (Super-Seeding) and support for Magnet Links.
When downloading, BitComet provides the option to prioritize the first and last portions of media files so that files may be previewed before they are completely downloaded.
It also has a 'Preview Download Mode' in which all pieces of the torrent will be, basically, downloaded sequentially thus allowing the user to play a media file while downloading (provided that the downloading speed and piece availability stay ahead of playing bitrate).
BitComet also allows users to share their .torrent files, on a searchable P2P network, with other BitComet users through the torrent sharing feature, named 'Torrent Share' in previous versions and renamed to 'Torrent Exchange' since v.1.17.[8] BitComet uses the Kademlia (mainline) DHT to operate even when the tracker is offline. BitComet is capable of downloading files over HTTP and FTP as well as bittorrent, and it includes download plugins for Firefox, Internet Explorer, and Maxthon.[6]
An optional plugin is available to connect to the eD2K network. The plugin is a modified version of the GPLeMule program. When installed, it connects automatically to a server.[9]
The software includes an application to play Flash Video files (.flv and .swf files).[10]
In February 2011, BitComet launched anonymous downloading feature to its VIP customers. Using this feature, downloads will be handled by BitComet VIP servers and the real IP address of the user will be hidden.[11]
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BitComet.com offers a BitTorrent tracker available for download from the official site.[12] The FLV player program can also be downloaded separately and used independently of the BitComet software.
The search site is google.atcomet.com
Since version 0.86 BitComet includes discussion and stat-tracking features which send information about torrents to the Bitcomet.com servers, including the torrent hash.[13][verification needed]
During version 0.60, BitComet received bad publicity because its implementation of the DHT feature, which was new at the time, could be exploited to ignore the private flag of a tracker. This allowed users to avoid download and upload ratio restrictions, which are common on private trackers. Some private trackers responded to this by blacklisting version 0.60.[14] BitComet developer RnySmile reverted the client back to version 0.59 in response to the blacklisting.[15]
The DHT exploit was fixed in version 0.61.[16][17]
Starting with version 0.85 (from early 2007), BitComet added a non-standard option to its torrent maker that ensures that no two data files in a multi-file torrent occupy the same BitTorrent 'piece.' To accomplish this, BitComet includes in the torrent a collection of empty 'padding' files which houses the remainder of each file's last 'piece'. While these files are transparent to BitComet users, they damage the performance of other clients, because peers must devote resources and bandwidth to the padding files, with no benefit to the non-BitComet users. These files can constitute up to 10% of the total data transferred, creating a substantial drain on the swarm.[18] BitComet developers added this feature to allow support of a feature called Long-Term Seeding in which the BitComet client can download files from other BitComet clients who have an identical file but not from the same torrent. It also allows the downloading of individual files from other non torrent sources like ED2K links. The addition of the padding file ensures that a complete version of the file can be obtained rather than being unable to complete the relevant file or last 'piece' [19]
Design doll 4.0.0.9 torrent. In the event of any disputes arising in relation to this Agreement, the district court that presides over Terawell’s locality shall be the agreed court of first instance with exclusive jurisdiction. The provisions of Article 10 of this Agreement shall remain in effect even after termination of the license. If this Agreement is displayed in English, please note that the contents of the English-language Agreement were composed only for the purpose of translation. While we did take great care to ensure the integrity of this translation, in the case of a dispute between the Japanese and English versions of this Agreement, the contents of the Japanese version shall take precedence.
Creation of padding files has been enabled by default since version 0.85, and as of version 1.36 is still enabled by default.[verification needed]
In July 2007, Robb Topolski, a self-described “networking and protocol expert”[1] conducted an independent analysis of most accusations leveled against BitComet including the DHT Exploit and Super-seeding controversies mentioned above. He found all but one of the claims to be false or unverifiable. He found that BitComet is not detrimental or malicious to the download or upload speeds of a BitTorrent swarm or the tracker.[20]
The one claim he verified as partially correct was that, 'BitComet is a poor peer due to no upload slot control; upload bandwidth is stretched too thin'. Topolski's tests indicated that BitComet does lack upload slot control, but only when BitComet is initiallyseeding a torrent—that is, when BitComet is the only seeding peer in a swarm, it tends to seed less efficiently than the two other clients he tested. Topolski asserts that when BitComet is not the only seeding peer in the swarm, or when it is a non-seeding peer, upload slot control is managed exceptionally well.[21]
The download site FileHippo ceased carrying new versions of BitComet in April 2008, with this announcement.
As of April 2008 FileHippo will no longer be updating BitComet. As they have copied the FileHippo site text, files, images and update checker and are passing it off as original work. We recommend you use a different more reputable torrent client such as uTorrent.[22]
This occurred after FileHippo reportedly noticed that the design and code of the AppHit.com site was very similar with the one FileHippo used, copying not only icons, but text from FileHippo's website and FileHippo's own original update checking software.
Because AppHit and BitComet were contractual partners, FileHippo decided to stop carrying BitComet. BitComet has since terminated the partnership, by 2015 FileHippo made BitComet available once more.
According to the official BitTorrent specification, 'All strings in a .torrent file that contains text must be UTF-8 encoded'.[23] When generating torrents on non-Latin character systems such as Chinese or Japanese, BitComet versions prior to 1.20[24] encoded the files' names and paths using the Windows Chinese/Japanese code page, and stored a UTF-8 version in a non-standard attribute.[25] Starting with the March 2010 release of version 1.20, BitComet's torrent format now conforms to the standard.
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(help)[Regarding the claim that] BitComet seems to favor uploading to other BitComet clients, even when getting faster download speeds from other clients .. In dozens of observed sessions using BitComet, I see no such preference being given to BitComet peers. .. BitComet is a worthy download client, providing some advantageous features not found in any other current BitTorrent client. Some of these features are confusing and are poorly implemented, but they are not detrimental to a BitTorrent swarm, nor do they take unfair advantage.
Core Improve: use UTF-8 encoding when making torrent file by default for all language versions of Windows.
In BitComet v0.58 or before, the string is encoded using MSCB (user's code page), and a '.utf-8' key is added for UTF-8 encoded string. In v0.59, the default encoding is changed to UTF-8 if the user's code page is neither Chinese nor Japanese.
Taking a slightly different approach to solving the multimedia lover's dilemma of how best to download torrents is BitComet, which uses an interface heavily cribbed from Windows Explorer--with a dose or two from the basic BitTorrent template--to create something instantly recognizable to the user.
There's a familiar tree of features on the left, including links to torrent-aggregating Web sites and several promotional offers. The top of the app has big buttons with familiar icons, the center window shows the files being downloaded, and the bottom pane has tracker and peer info. The pane on the right rounds out the layout, with a torrent search feature and advertising. Among the usual features, BitComet offers chat capabilities, the ability to bookmark your favorite sites, a toolbar for Internet Explorer 7, and a context menu for Firefox 2.
While the app held its own against better-known competitors in terms of speed and handling multiple torrents, we found the ubiquitous advertisements to be annoying compared to the competition's ad-free environs. Overall, we think BitComet is worth trying and could become a major torrent app in the future.