Bnaya has released a new version of the RxContrib project which includes the Reactive Queue – an RX interface above a message queue. This version has a provider for CCR ports as the underlying queue mechanism. This provider supports a Port<T> for OnNext notifications, and PortSet<T, Exception> for both OnNext and OnError notifications. To compile, make sure that you have a version of the CCR available (you can download it from here ) and change the appropriate references...