can't really give you the specifics as to how to do this but if you read the help file, it should tell you how to tell Avira to ignore that detection if you are sure the file is harmless. If you can not find it in there and if noone else can answer the question here at CNET, Avira has a support forum here
since i download avira antivirus, it scan that my pc have many virus.
it states that the file contain an excutable. this however is disguished by a harmless file extension! it keep pop up, and it's really annoying! i really can't do anything now! anyone can tell me what is that and how to get rid of it?