Hello! A lot of customers ask us what are the latest available engines Forefront Protection products are running, so this is for you: Forefront server security products provide fast and effective protection from malware using multiple scanning engines from industry-leading security partners. This page provides the latest news on engine changes, status of available engines, and helpful links for managing your engine usage. So the Forefront Server Protection Engines are: Antivirus - Authentium Antivirus - Kaspersky Antivirus - Microsoft Antivirus - Norman Antivirus - VirusBuster Antispam - Cloudmark Thanks,