together with several others were shut down after a temporary injunction was issued. By 2007, BitTorrent had overcome eDonkey network as the most widely used file sharing network on the Internet. In 2009, it was reported that eDonkey is still the 2nd most popular P2P protocol, but is rapidly declining. Successor protocols The original eDonkey network relied on central servers run by users willing to donate the necessary bandwidth and processing/disk usage overhead. Such servers could be subject to heavy traffic and, consequently, more vulnerable to attacks. To overcome this problem, MetaMachine, the developer of the original eDonkey client, developed Overnet as a successor to the eDonkey protocol. The eMule Project also developed a Kademlia network of their own (called Kad) to overcome the reliance on central servers. In addition, eMule includes a pure P2P client source-exchange capability, allowing a client with a ‘High ID’ (i. e., with incoming eD2k connections not blocked by a firewall) to continue downloading (and uploading) files with a high number of sources for days, even after complete disconnection from the original Kad or eD2k servers that handled the original requests. (eMule does not query secondary servers when told to disconnect from the server). This source-exchange capability is designed to reduce the load on servers by two thirds or more for files that have a large number of seeds, or sources (other clients) for the files. The original eDonkey client by MetaMachine does not support source exchanges. Legal action Legal action against eDonkey 2000 On September 13, 2006, MetaMachine Inc., the developer of the eDonkey2000 client, agreed to pay $30 million to avoid potential copyright infringement lawsuits brought by the RIAA. In accordance with the agreement, eDonkey is to discontinue distribution of their software as well as to take measures to prevent the use of previous copies of their software for file sharing. Confiscation of Razorback 2 Razorback2 was a server of the eDonkey network, known for being able to handle 1 million users simultaneously. On 21 February 2006, several servers (including Razorback2), located in a Belgian datacenter, were confiscated by the Belgian police, and their operator, who lives in Switzerland, was arrested. This was done after a local judge authorized the confiscation at the datacenter in Zaventem near Brussels, after a denouncement of the Motion Picture Association of America (MPAA), in collaboration with the International Federation of the Phonographic Industry. The MPAA Chairman and