I've got Drupal 6 setup within a XAMPP test area. I have LDAP authentication, groups and data working against Active Directory.
What I want... is since I'm on an intranet where users are logged in via user-names... is for automatic authentication, without the need to login via the website.
If it's more difficult than its worth, it's no major hassle, but I'd like to know if it's possible that when my users visit our intranet they auto-magically authenticate with their already logged in Windows session.
Ultimately, I may switch to IIS, but I do like having a portable, easy to backup/copy/test setup so for now I'm going to see if I can get this working in XAMPP.