Apache and LDAP

Hi every body

i am using php and Apache server running on windows server and i would like to developa website reading the users from active directory could you tell me how can i enable LDAP in apache running on the windows server and what is right code for list of users from active directory

my php version is : PHP Version 4.3.6

and my apache version is : 1.3.29

I do not know if there is any support for LDAP within Apache, but I know there is in PHP: http://www.php.net/manual/en/book.ldap.php (though I've never had cause to use it, so can't tell you more than that).