On my XP Pro system that is an IBM ThinkCentre I am getting a false positive on SBWebCtl.dll since 4/25/2010 when I did a Full system scan.
This file has been on my system since I bought it and just now has been detected.
It is in the SBUtils Folder that looks like the Folder that provides Dialup Networking.
I have submitted a False positve report but it is still being detected.
See:
SBWebCtl.dll flagged as Malware; on all 3 A31p’s
http://forum.thinkpads.com/viewtopic.php?f=5&t=86649