An EPiServer site is using forms authentication to enable outside users create a user profile and logon. In IIS the whole site is open for the "iis anonymous user". Authentication is performed by EPiServer using forms for protected pages (extranet). I want the /edit and /admin directories to use windows authentication with integrated security instead (so that internal editors dont need any login). I can turn off anonumous access in IIS. This causes the windows login box to pop up, but I still need to logon through EPiServers form as well. Any ideas how to get integrated security on /edit and /admin while the rest of the site uses episerver forms authentication?