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.

Institutions (even non-commercial ones) are not allowed to use avast! Home Edition. However, ALWIL Software provides the full line of avast! antivirus products at special discount prices for non-profit, charity, educational and government institutions. Please see our price lists for details.

The latest version of this program is 4.8.

Features overview
	Antivirus kernel		Automatic updates
	Simple User Interface		PUSH updates
	Enhanced User Interface		Virus Chest
	Resident protection		System integration
	Script blocker		Command-line scanner
	P2P and IM Shields		Integrated Virus Cleaner
	Network Shield		Support for 64-bit Windows
	Web Shield		Internationalization

To purchase online using any credit card or paypal, please click here