I have a WPMU install with a couple of sites on it. I'd like to add some subdirectories that are not wordpress blog pages but do contain working PHP code. They do not use any of wordpress's libraries and are not plugins.
The catch is that I'd like these subdirectories to only show up on a particular site. For instance, the hierarchy is:
should work while
should give a 404 error. Is there anyway to do this? I'm running Wordpress through Windows Server IIS7 if it is any help.