SVC Script Maps

What registration in IIS is responsible for processing SVC files?

There are two parts to the registration. One part is related to ASP.NET and the other part is related to WCF. The ASP.NET part is that the ASP.NET ISAPI has to be a service extension for IIS. The WCF part is that the HTTP handler has to be a managed handler.

The commands for setting up the two parts are "aspnet_regiis –i –enable" from the 2.0 framework tools and "ServiceModelReg.exe -r" from the 3.0 framework tools.

This results in a managed handler "System.ServiceModel.Activation.HttpHandler, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" and an ISAPI module "%SystemRoot%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" for *.svc files in IIS. In the IIS handler mappings, the managed handler has to be above the ISAPI module for this to work.

Together, the two parts start an HTTP pipeline and pass the resulting requests into WCF.