Thread:Project:Support desk/Localsettings.php not Found by non-admin users/reply (3)

The problem is an issue of whether anonymous users can access your web server's LocalSettings.php.

In a domain environment my advice is to create a user for the IIS server to run under, tell IIS to operate the website under that user account, and grant at least "read" permissions for that account for your web directory (not just your individual file, especially since extensions must access the /extensions directory). "write" and "modify" permissions will be required if you intend to allow file uploads or to use Special:LockDB.