some files contain certain scripts that match certain virus's and certain virus scanners pick this up and think it contains a virus or is a virus, most of the time it is, but in a case like this, id say its an error with the scanner I've had this happen to me with a *cough* version of Just cause 2 (it was 100% clean and proven to be this), check some forums to see if others have had the same problem if so, try white listing it, or if you believe it is safe, just white list it, the white list is there for a reason, and if you have errors like this, use it.