<configuration> <system.web> <pages> <namespaces> <add namespace="Telerik.Web.Mvc.UI" /> </namespaces> </pages> <httpHandlers> <add verb="GET,HEAD" path="asset.axd" validate="false" type="Telerik.Web.Mvc.WebAssetHttpHandler, Telerik.Web.Mvc" /> </httpHandlers> </system.web> <system.webServer> <validation validateIntegratedModeConfiguration="false" /> <handlers> <remove name="asset" /> <add name="asset" preCondition="integratedMode" verb="GET,HEAD" path="asset.axd" type="Telerik.Web.Mvc.WebAssetHttpHandler, Telerik.Web.Mvc" /> </handlers> </system.webServer> </configuration>