Correct me if I am wrong Qwerty, if IE is accesing this Cleansweep DLL file, then that would mean that the registry has been corrupted, So my first post should not neccessarily contain "conflict" but more in depth would point to an application ( in this case Norton Cleansweep?? ) installation or execution, created the registry corruption or application conflict.
I have had problems with McAfee products and Norton products not "liking" one another and they tend to get "pi**ed" when you put them together ( hmmm talking like they are sentient...lol) anyway....tired

Does this help or bring light to your day kellybelly182_1?