On our webserver I have some pages which I want you to have to log on, to be able to access them. This is done by setting the permissions on the files so that only a particular user (not iusr_server which is the anonymous web user). When not using the proxy it pops up a box and prompts you for a username and password. However when going via the proxy this doesn't happen. I have seen lots of information about authentication settings - are they anything to do with this? Is it possible to authenticate yourself with windows, via a proxy, in this way? Thanks Ben