Allow anonymous access to Content and Script folder

I am building a ASP.NET MVC 2 website that uses Forms authentication. Now I want to allow unauthenticated users access to the Scripts and Content folders, so the stylesheets and images will load. However, it does not work. From what I found on Google, this should work:

<location allowOverride="false" path="Content">
    <system.web>
      <authorization>
        <allow users="?" />
      </authorization>
    </system.web>
  </location>
  <location allowOverride="false" path="Scripts">
    <system.web>
      <authorization>
        <allow users="?" />
      </authorization>
  开发者_C百科  </system.web>
  </location>

It does not work in ASP.NET MVC 2 on IIS (win7). The stylesheet and javascript requests are redirected to Account/LogOn. How do I fix this?

Update: Anonymous Authentication is enabled in IIS. So is forms authentication.

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Don't use the Authorization tags in the web.config. Use the Authorization attribute in your Controllers (or Actions).