When you read zeroconf, read Bonjour and UPnP.
Bonjour is an Apple protocol which does the same thing as UPnP : Service Discovery. This project is a FULL .NET implementation. With this implementation comes a partial object implementation of the DNS protocol.
The documentation has moved to the Documentation
The aim of this project is to have a full .NET implementation of service discovery protocols. Bonjour is a first step. UPnP will come soon.