Microsoft's new Silverlight
however and you will see something to please web advertisers and those who wish to track user's browsing habits.
Standard computer information typically includes information such as your IP address, operating system version, browser version, your hardware ID which indicates the device manufacturer, device name, and version, application version and your regional and language settings.
(Emphasis mine.) So at least marketers won't have to rely on the Windows Media Supercookies or Flash Shared Objects any more.