Hi Eric Kia,
Welcome to Microsoft Answers.
Persian language pack is an add-on to the Multilingual User Interface Pack (MUI). To install Farsi language and Farsi keyboard layout in Windows Vista, follow these steps:
- Open Regional and Language Options by clicking the Start button, clicking Control Panel, clicking Clock, Language, and Region, and then clicking Regional and Language Options.
- Click the Keyboards and Languages tab, and then click Change keyboards.
- Under Installed services, click Add.
- Double-click Farsi language, double-click the text services you want to add, select the text services options you want to add, and then click OK .
Also check the link “Available Language Packs” http://technet.microsoft.com/en-us/library/cc722435(WS.10).aspx
Refer to the link “How do I get additional language files?” http://windows.microsoft.com/en-us/windows-vista/How-do-I-get-additional-language-files
Diana
Microsoft Answers Support Engineer
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