avast! 4 Professional Edition is a collection of high-end technologies that work in perfect synergy, having one common goal: to give you the top grade protection against computer viruses. It represents an ideal solution for any Windows-based workstation.
avast! 4 Professional Edition is a complete ICSA certified antivirus software for your company. It obtained VB100% awards in 2002/4 Virus Bulletin comparative reviews.
avast! scans for viruses, worms and Trojans: On Demand - with two User Interfaces, On Access, E-mail, during Boot Time, in File Explorer and Screen Saver. It maintains Virus Chest. Protects E-mail, HTTP, NNTP, ICQ, mIRC, Kazaa etc. True incremental updates based on iAVS technology updates twice a week virus definition file.
avast! Home/Professional now fully supports the 64-bit Windows and Vista platforms.
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。
主要特点：
（1）高侦测的反病毒表现，多次获得过ICSA和Virus Bulletin 100%认证，启发式强大。
（2）较低的内存占用和直观，简洁的使用界面。
（3）支持SKIN更换，完善的程序内存检测。
（4）对SMTP/POP3/IMAP邮件收发监控的全面保护。
（5）支持MS OUTLOOK外挂，智能型邮件帐号分析。
（6）支持宏病毒文档修复，修复档案后自动产生病毒还原数据库（VRDB功能）。
（7）支持P2P共享下载软件和即时通讯病毒检测，保护全面。
（8）良好有效的侦测并清除病毒，如虫，广告和木马程序。
（9）病毒库更新速度快，对新型病毒和木马有迅捷的反应。
功能特性：
＊反病毒内核
＊自动升级
＊简单的使用界面
＊病毒隔离区
＊实时监控
＊系统结合
＊P2P和聊天软件监控保护
＊病毒清除
＊网络防护
＊64位系统支持
＊网页防护
＊多国语言支持
＊增强型用户界面
＊恶意脚本屏蔽
＊DOS下扫描
＊扩展病毒库升级
＊移除病毒备份
Changes in Version 4.7.1029; July 28, 2007:
* infrastructure changes in the scanning engine bringing higher detection rates
* fixed a bug that was sometimes causing crash of the avast screensaver during its initialization
* improved handling of corrupted files in the SIS and CAB unpackers
* Standard Shield: fixed a minor memory leak in the Vista (and Vista only) driver
* Standard Shield: improved the "move to chest" command in Vista
* Standard Shield: the default scan exceptions are no valid for read/write access only (no execute)
* added more "installer" unpackers
* added more Win32 executable unpackers (Enigma etc.)
* for NTLM proxy authorization (via ISA Server) it is now possible to specify the account under which the avast service will perform the update
* added Arabic language pack
avast! 4.7.1029(English)
Download : avast! 4.7.1029 Professional Edition(shareware)
Download : avast! 4.7.1029 Home Edition(Freeware)
avast! 4.7.1029(简体中文版)
Download: avast! 4 Home Edition (家庭版,免费)
Download: avast! 4 Professional Edition (专业版,共享)