I discovered somewhat by accident that the C:\Documents and Settings\exadmin\Local Settings\Temp\ directory on my exchange server(exchange 5.5 SP4, windows 2000 server) has approximately 56,000 directories in it. They're all named wfvxxxxx where xxxxx is some number between 1 and about 59,000. Some of the directories are empty, but many contain a copy of exchng2.cab. The dates on the folders suggest that they're being created daily a few thousand at a time in rapid succession. The only other programs on the server are Veritas Backup Exec for Windows NT/2000 and McAfee Groupshield and I don't see how they would be causing this problem. Any help you could give me would be greatly appreciated!