<system.webServer>

<modules runAllManagedModulesForAllRequests="true" />

<validation validateIntegratedModeConfiguration="false" />

<handlers>

<remove name="Handler" />

<add name="Handler" preCondition="integratedMode" verb="GET,HEAD,POST"

path="" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />

</handlers>

</system.webServer>