Today I have completed my first phase of the project on Asp.Net 4.0 and I have implemented Web Form routing feature. It was working fine on VS inbuilt IIS server but when I deployed on IIS server, it was not working. I did little bit search on Google and finally found working solution. It may help you in future.
<modules runAllManagedModulesForAllRequests="true"> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web, Version=126.96.36.199, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> </modules> <handlers> <add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web, Version=188.8.131.52, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/> </handlers>