Of these two variables, the item is more important for the application developer because it is specific to the capabilities of the platform for that particular version. The User-Agent header for web applications built using HTML contains a combination of Internet Explorer-based variables and Windows Media Center-specific items, as follows: The following are examples for Windows 7: MCML/2006 MCML/2008 MediaCenter. The User-Agent header for web applications built using MCML contains the following information: When parsing the User-Agent header value, the order of items is not important and may be random. The Ident value indicates the version of Windows Media Center that is present on the computer: Windows Media Center Version Key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Media Center
You can also detect the presence and version of Windows Media Center by looking at the following registry key: From markup, you can determine which version of Windows Media Center the user is running by retrieving the MediaCenterEnvironment.Version property.
