We have users accessing exchange e-mail with Outlook 2000 through out Metaframe 1.8/NT4 server. Most users do not have Internet Explorer access through Citrix, but it is a published application for certain users. Non internet users are able to open links sent to them through e-mail. And from there surf the net once the IE window opens. Is there a way that I can prevent IE from beung opened through Exchange or somehow through Citrix?