Many enterprise customers have deployed the Windows XP Multilingual User Interface Pack in their corporations as a way to ease desktop administration and reduce desktop management costs in multilingual computing environments.
The Windows Media Player 9 Series provides support for customers who have deployed this version of the Windows operating system through the release of the Windows Media Player 9 Series Multilingual User Interface Packs.
Windows Media Player Multilingual User Interface Packs are available for download for all 25 non-English language versions of Windows 2000 and Windows XP. Individual language versions of the User Interface Packs are available for download, and users are able to choose the specific target language version of the language that they want to enable.
News source: Microsoft Downloads