The Membership System software for Microsoft Internet Information Server (IIS), allows you to protect directories by asking browsers for their username and password. using HTTP-standard Basic Authentication.
The general procedure for setting up access authorizations for your users is the following:
If you need to use FrontPage with the Membership System software, make sure that IIS has Basic authentication turned off and NT Challenge Response turned on .
In the Windows GUI Options dialog box, turn on the checkbox labelled "Don't authenticate Frontpage Directories (with _vti_ in them) even if they are in an protected directory" .
Make sure that the anonymous user can access the actual directory, without AuthentiX, then Add AuthentiX protection.