微软推出的杀毒软件套件，包括反病毒防火墙、数据备份、反间谍、磁盘清理等功能。提供90天试用，这款软件在Vista中通过了VB100的测试，2.0版无需修改系统语言。
New features we should be seeing include:
* Multi PC management - designate a hub PC and then add additional PCs to your OneCare circle using a common Windows Live ID. You can then see the status of the other PCs within the group.
* Printer Sharing - share your printer with all the PCs in your OneCare circle
* OneCare Online Photo Backup - paid storage is available online for photo backups (we're hearing 10GB but that could change by the end of the beta)
* Securing wireless networks - if your router is supported OneCare 2.0 will allow you to secure your wireless network
* x64 support

官网：http://www.windowsonecare.com
~Support WinXP/XP x64/Vista/Vista x64~
http://onecare.live.com/site/zh-tw/default.htm
http://origin.dogfood.windowsonecare.com/cli/latest/setuponecare.exe

这是一个很不错的软件,占用资源挺小的!

只90天啊，有没有破解的。

不知道杀毒的效果怎么样