Avast AntiVirus Pro 5.0

Avast Pro Antivirus 5.0 is for people and companies that want a customized computer security package. Antivirus and internet protection
components in Avast Pro Antivirus are built for easy integration with
existing firewalls in users' home or work computers. Pro Antivirus has
two major additions to the core protection elements in Avast Free
Antivirus: the Script Engine and the Sandbox.