I have users in our Citrix Environment that are not able to access the proper proxy server. We use explicit proxies and they were recently changed. We used to use proxy.domain.com and now we use inetgw.domain.com. We pushed the change through GPO and IE works great. What I am seeing is my users, when accessing an Internet resource from MS Office applications (i.e. Word and PowerPoint) (links sent via email work just fine) they are being prompted for credentials for proxy.domain.com instead of inetgw.domain.com like they are in IE. All traffic is now being blocked to proxy.domain.com therefore they can no longer access these resources. I have spent the last day trying to track this down in the registry to no avail. I have a hunch that Office has cached the proxy server address somewhere but I can't find it anywhere. Can anyone point me in the right direction?