MSのサーバーがLinux採用
The site www.microsoft.com is running Microsoft-IIS/6.0 on Linux.
http://uptime.netcraft.com/up/graph?site=www.microsoft.com

The site v4.windowsupdate.microsoft.com is running Microsoft-IIS/6.0 on Linux.
http://uptime.netcraft.com/up/graph/?host=v4.windowsupdate.microsoft.com