Free Download Avast 4.8.1335 Professional Edition is only 22 MB in size. Avast 4.8.1335 Professional Edition is a complete ICSA and Checkmark certified antivirus, Checkmark certified anti-spyware and anti-rootkit software package for corporate and advanced home use.Avast Professional Edition includes an on demand scanner with two user interfaces,a skinnable simple interface: just select what you want to scan and in which way and press the play button, an enhanced user interface: Outlook like UI allows users to set any feature of Avast, prepare and run tasks,store and check task results, on access scanner: special providers to protect: most available e-mail clients, instant messaging: ICQ or Miranda, network traffic: lightweight firewall, P2P protection for Kazaa, BitTorrent, Web shield: all HTTP traffic, script blocker.Small,true incremental,updates are downloaded and installed automatically.

Features:-

* avast now contains a built-in anti-rootkit protection
* avast now comes with a built-in anti-spyware protection
* new self-defense function to prevent active malware from terminating avast processes as well as corrupting avast files and registry items
* scanners now display a progress of current scan (percentage of work done)
* improvements in boot-time scanner (detection and removal of hidden or hard to delete files)
* improvements in many unpackers
* ACE and RAR unpackers now work even in boot-time scanner
* IM Shield: added support for QQ
* improvements in handling of NTFS streams
* Internet Mail provider now displays the name of the sending/receiving program in the tooltip of its taskbar icon
* implemented a protection against false positives in critical system files
* greatly improved performance of the updater,in cases where many increments are being downloaded.
* silent installation now also includes scheduled tasks, if any
* resolved a compatibility issue with Acronis TrueImage.
* compatibility tests with Vista SP1 and XP SP3



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