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I am learning WCF and I am stumped; why should i use this through a normal web service?

What benefits does WCF do for a table and why should I use this new technology on top of the old old ASP.Net web services?

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You might not need to switch to WCF if a regular web service would work for you, however WCF covers more than just web services.

With WCF, you can use different communication channels (such as web services, MSMQ, named pipes ...) using the same endpoint service handler code.



WCF also has different built-in security mechanisms, allows for different serialization mechanisms (if something other than Soap is required, like raw JSON), hosting services without the need for a web project, etc.

As such WCF is a more generic service hosting infrastructure that can replace regular ASMX web services

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Here is a nice article from msdn that talks about the differences between ASMX and WCF

Several key areas



  • Serialization - Asmx uses XmlSerializer and WCF uses DataContractSerializer. Serializer Datacontract about 10% faster (source together with other information ) The differences between services and ASMX WCF
  • Large protocol support (HTTP, TCP, ICP, MSMQ for WCF), ASMX only supports HTTP
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