Currently the .NET code base provides two client libraries that are compatible respectively with AMQP 0.8 and 0.10. The 0.8 client is located in qpid\dotnet and the 0.10 client in: qpid\dotnet\client-010. You will need an AMQP broker to fully use those client libraries. Use M4 or later C++ broker for AMQP 0.10 or Java broker for AMQP 0.8/0.9.