Operating System Resources Required by WCF
Windows Communication Foundation (WCF) depends on several resources that are provided by the operating system to function. The following table lists those resources.
Microsoft Distributed Transaction Coordinator (MSDTC)
Required to support OleTx transactions.
Internet Information Services (IIS)
Required if you want to use IIS to host your application.
Windows Process Activation Service (WAS)
Required if you want to use WAS to host your application.