Clients use several networks to create one reliable network. (ED2K, Source Exchange, Kad) Kad is now in an open testphase, eMule v0.42 can be enabled to use Kad eMule's Queue and Credit system helps to ensure that everyone will get the file he wants by promoting those that upload back to the network.

Once started, if you are using the SVN build, aMule will display a notification telling you that you are running it for the first time. Read this to learn what you are getting yourself into ;) Please note that aMule makes extensive use of right-click menus, so if you can't find a function, try right-clicking on the item you wish to manipulate. BitComet - eMule Plugin eMule Plugin for BitComet. eMule Plugin for BitComet is a modification of eMule (eMule MOD). It downloads data from the ED2K network for BitComet while BitTorrent downloading, and it also uploads to the ED2K network while BitTorrent uploading. ThoughtAttic :: ed2k :: EmuleTricksAndTips Sep 29, 2004

Often used by clients looking for extremely rare content, 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 in zlib-compressed form to save bandwidth.

Official eMule-Board: How To Use Ed2K Address To Download - Official eMule-Board

How to use emule - Correspondence chess

Unfortunately, as the official eMule is the most used client, and it uses the credit system, making a new client without the credit system enabled won't make a difference as long as it is using the same network. What would I do if I was a developer? I would create a new client that used a new network based on the strenghts of the ed2k and eMule - Download Jun 25, 2011