As you know, the New Windows Communication Services (WCF) will replace the existing ASP.NET ASMX Web Services. So, it will be wise to plan it from today as how to transit in this new service model era.  I first tried experimenting with WCF Service almost a year ago with the release of .NET 3.0 but VS 2005 and VISTA did work happily on my machine but now I like VS 2008.  I revisited WCF again with the release of .NET 3.5, all the sample available on the web are either old or do not give enough information if you are looking for information as how to use this service in different way over different protocol, which can closely mimic a small real word example .  So, I had to spend hours trying to find solutions and put the pieces together. So, I finally thought to create an example to help others who are facing the same situation. I have tried to closely mimic the ASMX Web Service uses, which I posted in my earlier post because most of us will be planning to convert from existing old one.  With all the experiments I would give one key Mantra for WCF, dig the Config file specially to understand how to configure BEB (Binding, Endpoint and Behavior). This example deals with CRUD operation on Customer data which I used in earlier post. For the simplicity I am using XML file for the data source and will consume this service with WS* Standard, SOAP based XML POST, Plain Old XML (POX) and HTTP GET and POST. I believe these are the common uses along with TCP, named pipe and MSMQ. Read More