FW: MS AD / OpenLDAP with PAP - is it really not possible ?

Hello I have got application that allow only to authenticate using PAP method. My Goal would bo to use Active Directory as a abckend User Database, but I found that: "Once the PAP authentication test has been successful, the next step for sites using Active Directory is to configure the system to perform user authentication against Active Directory. The clear-text passwords are unavailable through Active Directory, so we have to use Samba" Is it true ? The same page describing to use ntlm_auth instead, But I cannot found how to pass attributes from LDAP Database using ntlm_auth to Radius Client. Is it possible to reply attributes from LDAP using ntlm_auth ? Best Regars Pawel.