Windows Vista Language Interface Pack (LIP) for Windows Vista provides a partially translated version of the most widely used areas of Windows. After installing the LIP, portions of the text in wizards, dialog boxes, menus, Help and Support topics, and other items in the user interface will be displayed in the LIP language. The text that is not translated will be in English. You can install more than one LIP, so each user of the computer can display the user interface in their desired language.
(Languages denoted by an asterisk (*) are also available for Windows Vista Starter versions. Windows Vista Starter Edition balances the needs of first-time PC owners in developing technology markets by delivering proven Microsoft Technology at a more affordable price, and optimized specifically for lower end hardware. )
This package applies to the following languages:
• Albanian*
• Bosnian - Cyrillic*
• Bosnian - Latin*
• Gujarati*
• Hindi*
• Indonesian*
• Kazakh*
• Macedonian*
• Marathi*
• Serbian - Cyrillic*
• Tamil*
• Uzbek - Latin*
• Vietnamese*
• Welsh

 Download it here