Windows XP Peer-to-Peer SDK
It contains all the software required to create decentralized applications.
Windows XP Peer-to-Peer SDK contains all the software required to create decentralized applications that harness the collective power of edge of the network PCs: Peer-to-Peer Application Programming Interface (API), Peer-to-Peer headers & libraries, sample applications, source code, and documentation for each of the Peer-to-Peer core areas, e.g., scalable and secure peer-to-peer name resolution, efficient multi-point communications, creation and management of persistent peer-to-peer groups, and distributed data management.