Windows NT Authentication

Hi folks,
I am new to coldfusion; I have successfully setup Mx coldfusion 7, IIS 5.1. Now my client has requirement to incorporate windows NT authentication to his site. What i did for this is just edit the site settings in IIS and i choose the Integrated windows authentication access method. so now when the user logs in to window he can directly login to the site. Okay this fine, but please guide if am doing wrong or if there is some good way.

Now the problem is the this my client want to track the unsuccessfull attempts for login of of the users. I have surfed alot but i couldn't find any suitable information to get the user name and pass entered by user to prompt box.

means how to read user name and password from a prompt box that display incase of Integrated windows authentication?


I have tried to explain it best but please ask if you don't understand the problem,


please help me in this regards.

Thanks an advance,
Shahid