Symantec是久负盛名的一套强而有力的防毒和网络安全软件，这是其产品病毒定义库更新。

　　注意：

　　Symantec AntiVirus 10.x Corporate Edition (SAV)已于2012年7月4日进入EOSL(结束生命支持)。相关的病毒定义库更新、维护性更新及技术支持均已不再提供。建议使用Symantec Endpoint Protection 12.1 (SEP 12.1)来替换SAV 10.x。更多详情，请查询Symantec官方支持页面。

　　下载及适用版本说明：

　　v5i32适用于：

　　Norton AntiVirus / Norton Internet Security (later than 2012, up to version 22.6.x.x)

　　Norton AntiVirus / Norton Internet Security 2008/2009/2010/2011/2012

　　Norton 360 (later than 6.0, up to version 22.6.x.x)

　　Norton 360 version 2.0/3.0/4.0/5.0/6.0

　　Norton Security (up to version 22.6.x.x)

　　Norton Security with Backup (up to version 22.6.x.x)

　　Symantec Endpoint Protection 12.1

　　Symantec Endpoint Protection 12.1.2 and later

　　Symantec Protection Engine 7.x for Windows

　　Symantec Mail Security for Domino v 7.x

　　Symantec Mail Security for Microsoft Exchange (32-bit)

　　Symantec Scan Engine 5.x for Windows

　　Symantec AntiVirus for Caching/Messaging/NAS for Windows

　　v5i64适用于：

　　Norton AntiVirus / Norton Internet Security (later than 2012, up to version 22.6.x.x) for 64-bit OS only

　　Norton AntiVirus / Norton Internet Security 2008/2009/2010/2011/2012 for 64-bit OS only

　　Norton 360 (later than 6.0, up to version 22.6.x.x) for 64-bit OS only

　　Norton 360 version 2.0/3.0/4.0/5.0/6.0 for 64-bit OS only

　　Norton Security (up to version 22.6.x.x)

　　Norton Security with Backup (up to version 22.6.x.x)

　　Symantec Endpoint Protection 12.1 for 64-bit OS only

　　Symantec Endpoint Protection 12.1.2 and later for 64-bit OS only

　　Symantec Protection Engine 7.x for Windows (64-bit)

　　core3v5i32适用于：

　　Norton Security (up to version 22.7.x.x)

　　Norton Security with Backup (up to version 22.7.x.x)

　　Symantec Endpoint Protection 12.1.2 and later

　　core3v5i64适用于：

　　Norton Security (up to version 22.7.x.x)

　　Norton Security with Backup (up to version 22.7.x.x)

　　Symantec Endpoint Protection 12.1.2 and later for 64-bit OS only