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eMule MorphXT 12.2
|Initial release||January 23, 2003|
|Stable release||12.7 (November 21, 2012[±])|
|Operating system||Microsoft Windows|
|Type||Peer-to-peer file sharing|
|License||GNU General Public License|
eMule connects to both the eDonkey network and the Kad network. The distinguishing features of eMule are the direct exchange of sources between client nodes, fast recovery of corrupted downloads, and the use of a credit system to reward frequent uploaders. Furthermore, eMule transmits data and control codes in zlib-compressed form to save bandwidth.
The original eMule program was released under the GPL on 7 July 2002. The license allowed free modification of the software, and the first MorphXT mod was released on 21 January 2003 by a user using the name "morpheus". Between version MorphXT 2.0 and 8.3, the main developer used the name "SiRoB".
In September 2006 SiRoB announced he would cease development, since the French DADVSI copyright law made it illegal to develop peer-to-peer programs in France. Since then releases have been less frequent, although whenever eMule increases its minor version number, MorphXT increases its major version number.
Differences from eMule
MorphXT has the following additional differences to eMule:
- Uses powershare to prioritize files and publish them to the network
- A different UPnP implementation, to map ports and web interfaces
- Performance and gui tweaks
- Anti leecher system, banning some types of leecher mod
- Multi user web interface
- Capability to natively run as an Windows NT service
Several improvements first introduced in MorphXT have been incorporated back into the original eMule program.
MorphXT's anti leeching system is based on static comparison of version strings. Some users have criticized  this method, because it bans some clients that are not actively leeching, but are potentially capable of doing so. In addition, since the software adds functionality to the already complex eMule program, it can become too complex for many users.
Several versions of MorphXT have been released demanding a fee to download the software.
References and notes