Hi Pengie !!!
I have some contacts by symantec and for your problems they told me that a NSIS Installer (Nullsoft Scriptable Install System) is trying to run, eventhough it is corrupted.
So the persistant attempt to run this file might be because of an unwanted program trying to install this product.
For your Superiorads they gave me this link
http://www.symantec.com/security_res...449-99&tabid=3
Follow these steps carefully to remove all Superiorads and run a full systemscan.
If, after this step is completed successfully and you still receive the message,it might be caused by something else.
And they gave me this solution:
Do: Start-> Run -> msconfig
And see that the startup services and programs are clean and do not contain entries that sounds suspicious.
You might want to check the folling registry keys as well:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ RunOnce
To make sure nothing you dont want is set to automatically startup when you start your computer.
Good luck !!!