Dear Sirs, I work behind a firewall which allows CONNECT for http tunnelling, however requires authentication. The patch provided http://www.sourcegear.com/CVS/Dev/patches/http does not include support for username/password authentication to the proxy . I would very much appreciate if anybody has already tackled with the problem and if another patch be available to include username/password authenticaton at the proxy level (which then issues the CONNECT for http tunnelling ). Regards and thanks Dr. Luca Toldo