avast! 4 Professional Edition is a collection of award winning, high-end technologies that work in perfect synergy, having one common goal: to protect your system and valuable data against computer viruses. It represents a best-in-class solution for any Windows-based workstation. This page demonstrates its most important features and provides links to further resources.

Main features

ANTIVIRUS KERNEL
* Almost 100% detection
* Outstanding performance
* Reasonable memory requirements
* ICSA certified

USER INTERFACE
* Memory test during the program startup
* Very intuitive Simple User Interface
* Enhanced User Interface (MS Outlook style)
* Testing of whole disks or just selected folders
* Defining and running of antivirus tests