planemaddan wrote on Apr 6^th, 2015 at 8:15pm:

As I cant start a new post for some reason I thought I would post in here. I don't want my money back just a download that isn't infected.

It's a false warning. There is no virus in the installer. Avast also warns that some Captain Sim (and other FSX payware products for that matter) are infected, so now I just add the location of ALL my FSX payware downloads to the "exclusions" list in Avast. Now I can install them without interference from Avast.