avast! 4 Server Edition offers the most powerful protection to fight virus infections on your server or servers. It works both as primary protection of a file server itself, and, via its optional plug-ins, as protection for various server subsystems, such as electronic mail or firewall/proxy. Currently, the following plugins (editions) are available:
MS Exchange Server 2000/2003
MS Proxy/ISA Server
SMTP Server
MS Sharepoint Server (both Portal Server 2001/2003 and Windows Sharepoint Services 2003)
Features overview
Antivirus kernel
Notification manager
Cluster and Terminal Support
Automatic updates
Integration with OS
PUSH updates
64-bit support
Virus chest
Resident protection
Boot-time scan
User Interface
Command-line scanner