IE9 and security scanning

If I download a document from the internet IE9 does a security scan.

Which programme is used for this scan.

Any other details welcome.

A

Hi welcome to the forum.
I'm afraid I personnaly cannot answer your question.
It indeed is a popular question today, as it is the subject question of numerous forums.
I would think that at the moment no answer has been accepted, but I could be wrong.

I don't know the answer to this but one thought is maybe if people have Microsoft Security Essentials installed that is the program used.