avast! 4 Professional antivirus, anti-spyware & anti-rootkit for Windows
The professional solution to great protection
avast! 4 Professional Edition represents the best antivirus protection available and can be downloaded and used free of charge for a 60-day trial period. At the end of the trial period, a license key must be purchased, which will be valid for a further 1, 2, or 3 years. avast! 4 Professional Edition comes with anti-spyware, anti-rootkit and strong self-protection built-in. It is designed to protect your valuable data and programs, as well as keep itself up-to-date and has the kind of built-in features that many vendors charge for additionally, or don't include at all.

Features:

- Antivirus kernel
- Simple User Interface
- Enhanced User Interface
- Resident protection
- Script Blocker (Professional Edition only
- P2P and IM Shields
- Network Shield
- Web Shield
- Automatic updates
- PUSH updates
- Virus Chest
- System integration
- Command-line scanner
- Integrated Virus Cleaner
- Support for 64-bit Windows / Vista
- Internationalization

November 12, 2008

* improvements in some unpackers (Zip, 7-Zip, WinExec, Installer)
* fixed incompatibility with ext2fsd driver
* fixed a problem in The Bat! plugin (causing orphaned thebat.exe processes after the program was closed)
* added new unpacker "droppers" (by default turned on in all tasks including the real time scanner)
* fixed a problem with actions on infected files with special names
* Network Shield: added a component for blocking of malware URLs
* added the possibility of sending of statistical information about detected viruses
* added a new option of reporting of false positives
* improved the submission from the Virus Chest (now based on HTTP protocol)
* added a component for gathering of new samples from exploited pages
* implemented a limit of the maximum size of the selfdef.log file
* speed optimizations in the updater
* speed optimizations in the scanning engine
* solved a minor conflict with McAfee SiteAdvisor
* added support for the Windows Security Center in Vista SP1 (new API)
* minor fixes in the Web Shield
* removed support for ICQ a MSN Messenger alerts

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