Explorer 5 cache directory (which is odd because I don't have explorer 5, as far as I know)
i think it will say IE5 even if you have newer version....it is a microsoft programming thing

The forum Malware removal expert is on vacation so i recomend using Geeks to Go untill he is back
see reply #3 here http://forum.avast.com/index.php?topic=53253.0