I am using Basic authentication to validate when User tries to access ASP.Net website. It works great, they just have to enter their Windows domain user name and password and I don’t have to maintain them in tables. But I want to be able to use this Basic authentication in the form of a Login page instead of the popup from the IIS. How do I use Login form but still be having the user be able to use their Windows domain user name and password. It would be helpful if I can the implementation in detail.