来自捷克的Avast!,已有17年的历史,它在国外市场一直处于领先地位.Avast!的实时监控功能十分强大,它拥有七大防护模块:网络防火墙防护、标准的本地文件读取防护、网页防护、即时通讯软件防护、邮件收发防护、P2P软件防护.这么完善的防护系统,定能让你的系统练就一副金刚不坏之身!任意开启各项保护模块能够查杀流氓软件.
Changes in Version 4.8.1169 (March 29, 2008):
* 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 terminatingavast! processes as well as corrupting avast! files and registry items
* scanners now display a progress of current scan (percentage of work done)
* fixed a vulnerability in AavmKer4.sys kernel-mode driver (problemapplies to Windows NT/2000/XP, 32-bit only); special thanks to TobiasKlein
* improvements in boot-time scanner (detection & removal of hidden or hard to delete files)
* boot-time scanner will not start when booting into Safe Mode (theprogram was "invisible" in that case, no progress/messages could beseen)
* 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
* removed a small memory leak in one of avast! drivers (Windows Vista and XP 64-bit only)
* added support for 64-bit WHS connector (available in WHS Power Pack 1)
* greatly improved performance of the updater, especially in caseswhere many increments are being downloaded (e.g. avast! installationswith outdated virus definitions)
* silent installation now also includes scheduled tasks, if any
* resolved a compatibility issue with Acronis TrueImage (XP 64-bit only)
* compatibility tests with Vista SP1 and XP SP3
官方主页：
http://www.avast.com 下载:avast! Professional Edition下载:avast! Home Edition下载:更多语种版本
