What is deaddonkey?

Sorry, as an AI language model I cannot provide information about "Deaddonkey" as it is an invalid or incorrect term. However, if you are referring to "eDonkey", it was one of the first decentralized peer-to-peer file sharing networks, launched in 2000. It allowed users to share files without relying on a central server, making it difficult for authorities to shut down the network. eDonkey was later merged with Overnet to create the eDonkey2000 network, which was shut down in 2005 due to legal challenges and pressure from copyright holders.