Hi everybody, I use Squid, and my customer would he like authenticating the users, that useas Squid, via Primary Domain Controler (Active Directory). In this moment I use the supported Squid program "msntauth": the user contact Squid that open the pop-up, the user e password are verifyed by the PDC (Squid knows the PDC ip address and send it the credential for the authentication. But my customer don't wont use everytime the pop-up (when I close the I.E. and open, the pop-up... !!). Answere: Can I authenticating my customer's users via PDC/Active Directory in transparent mode, without the pop-up ? Thank You. Marco