Within the httpHandler section of the machine’s Web.config, the mapping appears as shown below

 *.svcMapping for WCF Handler

<add path=”*.svc” verb=”*”
 type=”System.ServiceModel.Activation.HttpHandler, System.ServiceModel,
  Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089″
 validate=”false” />