<configuration>
    <system.web>
      <compilation debug="true" targetFramework="4.5" />
      <httpRuntime targetFramework="4.5" />
    </system.web>
  <system.webServer>
         <defaultDocument>
             <files>
                 <clear />
               <add value="test.aspx" />
      </files>
    </defaultDocument>
  </system.webServer>
</configuration>