How to install Chinese on Windows XP
- Open the Windows Control Panel.
- (If the Control Panel is in "Category view") Select "Date, Time, Language and Regional options."
- Open the "Regional and Language Options" icon.
- Choose the "Languages" tab, and ensure the "Install files for East Asian languages" is checked, as per the screenshot below:

- Click the "Details" button to open the "Text services and input languages" dialog.
- If "Chinese" is not listed in the "Installed Services" box, click "Add".
- In the "Input Language" list, choose "Chinese (PRC)". The "Keyboard layout" should default to "Chinese (Simplified) - Microsoft Pinyin IME 3.0". Click "Ok" on both dialogs to return to the "Regional and Language Options".
- Click "Ok", you will probably need to insert your Windows CD for the files to be installed.
- The language bar should now have appeared in the bottom right of the taskbar. It should default to English - "EN".
- Click on the "EN" button to show the available languages:

- By changing the language to "CH", you can now type in Pinyin. You can change the current language by pressing "ALT" + "SHIFT" on your keyboard.
Thanks to http://www.fozza.com/zhongwen/guides/text-windows.php