Packed.Generic.200 Virus not being removed by Norton

I have Norton Internet Security 2009, and the system dashboard is showing secure, yet I keep getting a pop up that Packed.Generic.200 has infected 7 files all found in the same location globalroot\systemroot\system32\uacenbmenxp.dll.  I have run malwarebytes, kaspersky, and superanitspyware, as other posts have suggested.  Those programs had found quite a few other viruses on my machine that Norton had not.  All have been removed / quarantined and am still having the same problem with Norton.  I contacted them today and they only way they would help me is if I did the fee based service.  Is there anyone that might be able to give me some direction on how I can get rid of this virus?

 

Thanks in advance.

H