I have a Windows 2003 SBS server running Exchange 2003. I have AVG Business Edition AVG running on it and have scanned it thoroughly and found nothing. Yesterday it was blacklisted so I ran the Norton Power Eraser as advised and it found problems with three wow64 dll entries in the registry but said it couldn't cure them. When I searched the filesystems for the files it mentioned I could find no trace. So after a reboot and another AVG scan all appeared to be clear and I reset the blacklist entry. However, when I look at the Queue folder using Windows Explorer I see junk emails appearing that fail to send. I assume there are others that are being sent which is even more of a concern.