How to add a language to Windows XP

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YouTube - Como cambiar el idioma del Windows XP a Español. El original!!

Batchfile for switching languages in Windows XP Multilingual User Interface (MUI) pack

Windows XP MUI
just export the registry to my documents
to change language double click the exported registry, it will import and then logout

finish the batch file with
shutdown -l
(-l is the letter L) works very well and only shuts down the session.