You can use Dreamweaver to build a set of pages that restrict access to your site. Dreamweaver does not have authentication server behaviors for ASP.NET pages. However, since ASP and ASP.NET pages can run on the same site, you can use the ASP authentication server behaviors. The method you use to build these pages is identical to the one for ColdFusion. For instructions, see Building pages that restrict access to your site (ColdFusion, ASP, JSP, PHP).