NIS 2009 don´t catch virus in zip? Help

Hello for all members!!

 

I have a new notebook, and i have a norton internet security 2009 trial, yesterday i test the NIS in the eicar page, the first test detect, the second no, and the zip files no too. I scan the zip files with NIS and yes detect, but in download not detect, why?

 

I perform other test. In google i put, virus collection, and the first page have a samples, and i test NIS in there. The zip files in download no detect anythi, but again in scan detect.

 

I have a problem in brose protection? only zip or rar files the NIS no detect, but in scan yes....

 

I have a vista with sp1, firefox 3.0.3, and my last antivirus was KIS 2009, but is uninstaled.

 

Sorry my bad english :(

Message Edited by qwertys on 11-04-2008 06:45 PM