Norton Internet Security WS.Reputation.1

Dear Sir,

Norton Internet Security is blocking the download of xnviewportable.2.33.paf.exe and pdf-xchangeviewer.portable_2.5.313.1.paf.exe from www.portableapps.com on my notebook, saying it does not trust these programs because there would be too few users, this is called WS.Reputation.1 Kaspersky accepted to install them on another computer, so I was able to test them. Is there any possibility of teaching Norton Internet Security to accept them on my notebook too?

Best regards