Additional Language Support in Windows XP
Welcome to this tutorial to enable East Asian language, complex script, and right-to-left language support. Your computer will be able to handle the following languages if you select both of the language packs (260 MB of disk space required): Arabic, Armenian, Chinese, Georgian, Hebrew, Indic, Japanese, Korean, Thai, Vietnamese. The requirements of this tutorial is that you have Windows XP. You additionally might need the Windows XP installation CD to install the support. The images in this tutorial may differ a bit from your computer and will shown after each step instruction text (and not before).
To start, open your start menu and select Control Panel as shown in the image.
After that, a window labeled Control Panel should appear. Maximize the window in full by pressing the middle icon in the top right corner of the window. On the right should be a bar that either should say Switch to Classic View or Switch to Category View. If you see Switch to Classic View, click that once. If otherwise, skip to the next step.
Look for the icon labeled Regional and Language Options. It may be cut off and say only part of the icon's name. Double click (click the icon twice in succession) the icon or if, when hovering over the icon a blue line appears underneath the text, click the icon once.
A dialog titled Regional and Language Options should appear. Find the Languages tab and click it once.
Check both the checkboxes under the Supplemental language support section to install all the previously listed languages. This will let you view all those languages without later fussing about going through these steps again to install the other language support package. After you've gone through the alert dialogs that may come up, press Apply. After this, you will have to wait for the language support to be installed. You may need to insert your Windows XP CD if it asks, and you will probably have to restart your computer.
After restarting, you can follow the above steps again but instead of checking the checkboxes as shown above (they should be checked already), click the button Details to bring up the Text Services and Input Languages dialog. In this dialog, you can specify other languages you would like to input in.