I understand the avvdat files are propegated by McAfee. However, we run Symantec and no McAfee and I've found our mail server is running low on disk space. I found for each person who uses terminal services on our mail server, they have a large number of these avvdat files in their temporary internet files in Content.IE. Can these just be deleted? Is it a virus? Can you give me some immediate information on these? Thank you again so very much for your assistance.