CEO Dan Glickman, described this raid as a "major victory": Besides having Razorback's equipment confiscated and their site shut down, copyright enforcement entities such as MPAA and IFPI have set up several "Razorback2" fake servers online, with the purpose of mimicking the original servers but which yield no useful results, hampering file-sharing traffic. Afterwards, the Swiss anti-piracy tech firm Logistep SA was hired to help further intimidate and prosecute filesharing users. eDonkey poisoning Servers have appeared on the eDonkey network that censor shared content searches and information about files by the type of the file (such as video or MP3) or by keywords. These servers report large numbers of users (up to 1.5 million) connected to them, thus raising the number of users in the network to 10—13 million; however, it is impossible to determine how many people are actually connected to them. Such servers often disseminate advertisements disguised as commonly searched-for music/video files. Server software The main server software used for eD2k network is known as Lugdunum server. It was created by reverse engineering edonkey protocol and redesigned from scratch. (MetaMachine abandoned development of eD2k server software and revealed the source code to Lugdunum in late 2002, but was never used). Lugdunum has extended the eD2k protocol while maintaining backward compatibility. Lugdunum server software is gratis, but not open source. The stated reason for not opening the source is to prevent the easy creation of fake servers and to prevent attacking the server itself. In September 2007, a new server software was announced on the eMule web site forums, called satan-edonkey-server. Given the shut down of major eMule servers due to legal action against them just days earlier, the new server was accepted with suspicion. It was feared that the software may transmit information about the clients to unknown third parties. Some trusted eMule developers received the source code of satan-edonkey-server and stated that no spy-code is built in. The satan server software was created by reverse engineering edonkey protocol. The software comes in two versions (C++ and Java). Satan-eDonkey-server software is also gratis. A Java version of the server side can be found in , which was written in 2012. Client software Numerous clients, including several that are free software, are available for the eDonkey/eDonkey2000 network: aMule: a successful fork from lMule, it fully copied the interface and feel of eMule, and now it shares code with eMule