I don't really know the answer to your problem, because the only place I would ever obtain programmes is from a 100% trusted sourse. They are well known to b&^$£@er up your computer if they contain viruses etc.

I see a clue in your question :- " it says cant open because of security reasons"

Programmes get sold by the makers with security stuff in them so they can not be freely distributed. Seems like you have hit this little snag. So .... What can you do. Go to the store and buy the software, I suggest.

__________________
To get Phex Click on the Fox