PHP authenticate Windows account

[sleepy04]

Hello everyone .
I have a windows 2003 stand alone server . In this server I have some windows accounts and they all have passwords.
Now I have to create an intranet website on this server (IIS)
My question is how can I use accounts/password on the server to authenticate user through a PHP page ? Users have to enter their identity and the webpage log username and the time they login .

Thanks so much .

[chazzy]

so.. this is on the local machine, not via LDAP or AD or something.

[sleepy04]

Right .
I have read somewhere about use accounts on AD and LDAP.
I just think that if there is no way to use accounts on a stand alone server, I could convert that data to use LDAP . Is this possible ?