Internal site authentication

I have a classic asp internal site hosted on IIS. I would like to use the users domain login to control access to pages etc. In the site. In my old Dreamweaver asp vbscript site I just kept the pages in folders and controlled the access by setting security at the folder level then on update forms I would use {Request.LOGON_USER} to populate the user details when updating a record in my database.

Is this how I would handle it in wappler classic asp? Is there a tutorial somewhere showing ho to authenticate local users?