[squid-users] squid ldap authentication

Hi,

            we have in our network Windows Server 2003 and squid
proxy. Now i want squid to authenticate through server 2003 active
directory. i am using command:-

auth_param basic program /usr/lib/squid/squid_ldap_auth -b "ou=Users,
dc=example,dc=com" ldapserver

but it doesn't authenticate through it. Though the dialog for username
and password doeas come but when i enter the username and password it
doesn't authenticate though it. Plz tell me where i am going wrong. I
have already tried ntlm_auth command.

-- 
Thanks,
__________________________________
Ashish