a Direct Connect clone, a windoz client allowing users to share their files and talk (like IRC but more software sharing oriented) using a proprietary protocol.
a P2P filesharing client which is based on the Gnutella network. It offers advanced functions and integrates all common Gnutella extensions (the best Java Gnutella Client)
a modular, plugin-driven peer-to-peer client framework which is designed with true multi-network downloads in mind. It can be used directly via the built-in shell functionality, or via external user interfaces.