Directconnect
Direct connect is a peer-to-peer file sharing protocol. Direct connect clients connect to a central hub and can download files directly from one another. Advanced Direct Connect can be considered a successor protocol.
Hubs feature a list of clients or users connected to them. Users can search for files and download them from other clients, as well as chat with other users.
Read more about Directconnect: History, Protocol, Hub Software, Client Software, Other Software, Hublists, Direct Connect Used For DDoS Attacks