Forms Authentication with Active Directory but no Login Form

Disable windows authorization from IIS also.

When you click on your website in IIS there are authorization tab there disable windows authorization from there. Then that login windows will not appears. Enable form authorization on IIS  also

Framing my question in details:-

We want to host the application in IIS.This application will be used by the Intranet users.
Our main requiremnet is that the windows prompt should not come for intranet users.So we have not used windows authentication.
We have used forms authentication with active directory authorization.But then we are not getting logged in username.(Windows username who has logged in the machine)
Several codes like  - "System.Security.Principal.WindowsIdentity.GetCurrent().Name" - does not give username when
hosted in IIS.

With out using windows authentication is there any way to get machine username in IIS?

Which system login details you want?
If you want to restrict the user to access the login page from other computer then store the IP address of the computer and based on the IP address allow the user to access the login page. 

Hi Manish,

Thanks for the reply.I am able to do forms authentication through active directory with a login form

My requirement is that I don't want to give a login form in intranet since all the users are authenticated.How to get the system logged in user with out the login page?

Hi sulekha banerji,

Go through following links it might help you

http://www.beansoftware.com/ASP.NET-Tutorials/Forms-Authentication-Active-Directory.aspx

http://geekswithblogs.net/frankw/archive/2008/05/18/forms-authentication-with-active-directory-in-asp.net-2.0.aspx