OK, some of you may recognize that we have been down this road before. Yes, same client same situation. I cannot find the emails/posts from the original discussion that was over 6 months ago. If anyone has links to those emails/posts I would appreciate that. In the mean time: A web service running under a domain username and password needs to make a HTTP Get call to a 3rd party server. The problem is ISA is seeing the request as anonymous. What needs to be done to configure the web service to authenticate to ISA? John T