How to make WCF client use the same data types as the WCF service

Question

I have a .NET WCF service that services only .NET WCF clients (all .NET 3.5, no interoperability, via TCP, binary encoding). Using svcutil.exe the composite types that are used

Answer 1

In the "Add Service Reference" dialog, on the "Advanced" tab, specify "Reuse existing types".