A.<appSettings> <add key="Dev:Task" value="DevControls, DevControls.Task"/> </appSettings>
B.<compilation targetFramework="4.0" explicit="false"> <assemblies> <add assembly="TestServerControl" /> </assemblies> </compilation>
C.<pages> <controls> <add assembly="TestServerControl" namespace="DevControls" tagPrefix="Dev"/> </controls> </pages>
D.<pages> <tagMapping> <add tagType="System.Web.UI.WebControls.WebControl" mappedTagType="DevControls </tagMapping> </pages>