Hi We have recently put Nod32 with Xmon on our Exchange 2003 Enterprise server (which has 3gb RAM), in place of Etrust Antivirus. Since installing a number of our Outlook clients are getting a message every so often that 'Outlook is trying to retrieve data from the Microsoft Exchange Server ...'. We have approximately 175 mid-level useage users on the server, which is a single server with a separate SMTP server. Looking at Xmon it is reporting that it has scanned nearly 25,000,000 files since installation (which was only 2 weeks ago), is this correct? I have excluded the Exchange directories from the real-time scanner. Any advice would be greatly appreciated. Many Thanks Adam Colliss.