eMule is a file sharing client that made based on  the eDonkey2000 network, but offers more features than the standard eDonkey client, because it´s open source but under the restrictions of the GPL License.

What’s New in version 0.49a Beta 2:

* Fixed some rare bug which could cause rerequesting already transferred (buffered) data [tHeWiZaRdOfDoS]
* Tweaked UPnP a bit to support some more routers [leuk_he]
* Updated libpng to the most current version 1.2.27