Antivirus/File Server or Client. This new category combines two categories from last year (Antivirus/Server Side and Antivirus/Client Side). The three vendors earning the most votes this year also were in the top spots in both categories last year. However, this year, McAfee VirusScan Enterprise has moved from second place to first. VirusScan Enterprise integrates firewall and IPS technology, protects against new program security threats, provides advanced outbreak management to reduce the damage and cost of outbreaks, and integrates with other McAfee tools for centralized management and reporting.