I communication with SAP XI and Microsoft BizTalk from a .NET 3.0 WCF proxy. I receive about 5 MB of data. When I use a .NET 2.0 generated proxy (Visual Studio) the calls are quite fast and take nearly the same time. If I use a WCF (.NET 3.0) proxy the communication with BizTalk is very fast, but with XI it takes extremely long.
What's the reason for that? Does the WCF proxy parse and validate the message? (5 MB are quite much..., with a few KB I don't have this problem) How can I deactivate the validation?
thanks in advance