Error message after upgrade

I have upgraded to the latest version of remoting sdk and on one machine I get this error:

Unsupported BinMessage 2438 version found; 107 is the latest supported version.

I have checked all the references and they seem correct. It is possible this machine had a trial version at some point. Not sure of that affects things. Both client and server are .NET.

This was not an upgrade problem. What happened was that the server was encrypting the binmessage, and the client was not decrypting. The error message mentioned versions and we assumed it was an upgrade issue.