IIS Security

Is it possible to have both an integrated security website requiring a username and password challenge, and an anonymous login that requires no username and password on the same web server using IIS 6.0?  The reason is b/c I have some internal only pages, and some pages I want to ...

The server is configured to use pass-through authentication with a built-in account to access the specified physical path. However, IIS Manager cannot verify whether the built-in account has access. Make sure that the application pool identity has Read access to the physical path. If this ...