Scanning Http Traffic Question

edited February 2009 in General talk

For me it was a big surprise when I saw that in the default settings of the BitDefender's real time protection scanning http traffic is excluded (see picture)!? Many people keeps saying that scanning of http traffic is must have option in the modern antivirus software.

So, can you give me explanation, please? Is it BitDefender's scanning of http traffic heavy on resources, does it produce issues with OS, or, simply, scanning of http is not so important element of the antivirus protection? Please, do not hesitate to give more complex technical explanation. Thanks. Best regards.