Why are videos not shown by vistraxWelcome on Windows XP?

Why are videos not shown by vistraxWelcome on Windows XP?

If  vistraxWelcome does not show any videos on Windows XP, an update of Windows Media Player will be required (at least version 10). The Windows Media Player can be updated through Windows Update. Alternatively you can download the Windows Media Player from the following link.

http://www.microsoft.com/en-us/download/windows-media-player-details.aspx