BrowserSpy.dk shows you just how much information can be retrieved from your browser just by visiting a page.
Available tests are listed below.
Windows Media Player Information
Find out if Windows Media Player is installed. Windows Media Player is a media player developed by Microsoft that can play audio and video. It runs on Microsoft Windows, as well as on Pocket PC and Windows Mobile-based devices.
|Windows Media Player installed|
|Windows Media Player UniqueID|
|Detect via MediaPlayer.MediaPlayer.1|
|Detect via WMPlayer.OCX.7|
|Detect WMP 6.4 via classID|
|Detect WMP 7 and 9 via classID|