Use IIS 5 With Windows 2000. or use IIS 4 with NT. PWS is seriously lacking in the secrity area. IIS uses your NT/Win2000 User Accounts and is easy to configure. I'd recommend the books
Visual Basic Developers Guide to ASP and IIS By A.Russel Jones, and Using Internet Information Server 4(Special Edition) By Nelson Howell. Between The two they cover pretty much everything but Firewalls.