It's probably not open for discussion over there because you're receiving the correct answer and not believing it - DAZ installers legally downloaded from their website do not contain viruses.

my DeviantArt page: http://snowsultan.deviantart.com/

 

I do not speak as a representative of DAZ, I speak only as a long-time member here. Be nice (and quit lying about DAZ) and I'll be nice too.