If you are in the need of having different filtering layers for different kind of users, you can activate URLFilterService mode "Active, mandatory user" in "Service status" of configuration menu of Interfaccia.exe. With this option active the DNS filter uses incoming ip requester to match filtering rules and doesn't require the use of Identita.exe, which must be used exclusively for MITB mode. Identita.exe match a user to the current windows session. Once you make a declaration for a session, URLFilterService keeps it until you delete the data(4) or reboot the computer.
2.password for program user
3.associate user with Windows session
4.delete program user data in Windows session