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Antivirus and internet security protection for home and business. 24/7 support and high-speed automatic updates. Products ranging from maximum protection, to basic antivirus protection available for free download.

ParetoLogic creates an array of software, all available for free downloads, including spyware removers, virus protection, registry cleaners, and more.

G Data Software AG is an innovative and rapidly expanding software house focusing on IT security solutions.

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ESET NOD32设计了一个高效的内核，作为一个单独的、高度优化的引擎，提供统一的安全保护，防止不断的更新病毒、蠕虫、间谍程序的恶意攻击。 ESET NOD32拥有先进的ThreatSense □技术，可通过对恶意代码进行分析，实时侦测未知的病毒，让您时刻走在病毒编写者的前面。

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卡巴斯基实验室成立于1997年，总部设在俄罗斯首都莫斯科，Kaspersky Labs是国际著名的信息安全领导厂商。公司为个人用户、企业网络提供反病毒、防黒客和反垃圾邮件产品。经过十四年与计算机病毒的战斗，被众多计算机专业媒体及反病毒专业评测机构誉为病毒防护的最佳产品。

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