Sometimes I happened to face a odd error occurring when a client tries to connect to a WCF Service which has a TCP endpoint (netTcpBinding). It looks like this error can raise when one or more clients attempt to establish a good deal of connections in...

Sometimes customers open technical support cases because of this (apparently simple) issue: “System.Web.Services. Protocols.SoapException: Server was unable to process request. --> System.Io.FileNotFoudException: Could not find file ‘C:\WINDOWS\TEMP...

As stated in the .Net TCP Port Sharing MSDN article, “Windows Communication Foundation (WCF) provides a new TCP-based network protocol (net.tcp://) for high-performance communication. WCF also introduces a new system component, the Net.TCP Port Sharing...

I have to say WCF tracing is quite well documented in MSDN and even though this is certainly an aspect developers could take advantage of, sometimes you can get discouraged if facing tons of documents, technical details, etc. As a consequence you end...

A customer of mine was experiencing an annoying delay when calling a WCF service hosted in IIS6. He provided the following elements with the issue description: "The delay only occurs when calling the WCF service the first time. The following calls...

Typical (painful) troubles in the troubleshooter life are memory leaks or, generally speaking, issues related to large unexpected resource consumption. Sometimes those issues happen on production environments (we all know testing should have been done...

A customer of mine recently came up with a tricky problem regarding SOAP Toolkit and Windows Vista: “We have computer naming system that uses SOAP query. It has worked fine with XP but now we have problems with Vista. We get the following error: ActiveX...

Hi guys, my name's Andrea and I'm a member of Microsoft EMEA Distributed Services Team. We provide support for many MS technologies (COM+, WCF, WF, MSDTC, etc.), thus each one of us is specialized on some of them. My area mainly consists of web services...