I did a routine scan with Norton AntiVirus 2005 and another with Pandasoftware Active Scan Pro as well as a few other spyware apps and the scans didn't turn up anything other than cookies.
I also looked through Sysinternals Process Explorer and didn't see anything suspicious there.
What is wierd is that when I looked through the list of allowed programs in Norton Internet Security 2005 I found 2 w4sgeen9.exe and and w4sgeen9.exe.
When I did a search for them in Windows Explorer (with the checkbox selected for show hidden folders and files) neither showed up.
I have blocked access to both, but would be very interested in knowing what they do or what app they might be associated with.