A .NET Web app calls a .NET App using .NET Remoting. Separate Transaction Traces are visible for each layer, but correlated Cross Process Transaction Traces are not visible.
The .NET Agent does not support .NET Remoting for the Cross-Process Transaction Trace (CPTT) feature:
If .NET Remoting is being used only separate uncorrelated Transaction Traces for each layer can be viewed.
See Microsoft reference Comparing .NET Remoting to WCF . WCF has support for industry standards (SOAP, WS-*, etc.) compared to "legacy" .NET Remoting which uses a private message format.
The 2 tracer groups RemotingClientProxyTracing and RemotingWebServiceTracing are used in a .NET Remoting implementation (file dotnet.pbd) and report blamepoint metrics, but they are not related to the CPTT functionality.