Microsoft took .Net Remoting, Enterprise Services (COM+), ASMX Web Services, MSMQ, and Web Service Enhancements (WSE), which all had different APIs and integrated them into a single technology, WCF. The cool thing about WCF is that it is SOA (Service Oriented Architecture) based and you can change several settings at runtime via XML files.

>I keep hearing about the WCF framework. Where this new technoly fit in a n-tier development like? Does WCF replace Web Service layer????
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>User Tier ( could be Win forms or Web forms)
>Web Service Tier
>Business Tier
>Data Tier
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>
>Thanks