Hello Friends. I got a weird situation, but I believe its a silly one. My proxy server was configured to everyone users. I mean, right click on web proxy, properties, permissions, enable access control, it was configured 'everyone' there. So, I decided to change everyone for a global group. The Internet access kept going on well, but users couldnt use msn messenger anymore. Then I put back the everyone, and the users now can access msn messenger again. What am I missing here? Cant I use global or local groups to control Internet Access. I know I can, but it's not allowing to use msn messenger. I use external msn messenger (hotmail), not a internal one. My environment is Windows NT 4.0 Network, Proxy 2.0 Service Pack 1, and W2k server, SP3. Does anyone has an idea what is going on here? Thanks Dêniz Feital GIC - Chiptek / Vésper Tel 55 11 3489-7730 Fax 55 11 3489-7499 Microsoft Certified Systems Engineer