Three simple steps to localize
You can change the system code page using the Control Panel. The following instructions are for English Windows XP. The procedure is similar for the other Windows versions from Windows NT and newer.
On the Advanced tab, specify settings in the Language for non-Unicode programs boxes to match the target language.
You might need to insert the operating system CD to install the necessary files. If you already have the files installed, the system prompts you to use the existing files. Click Yes. Next, the system prompts you to restart the computer. Click Yes. You must reboot. Otherwise, the new system code page won't be effective.
Start the Control Panel, and open Regional and Language Options. On the Regional Options tab, specify information in the Standards and formats box and in the Location box to match the target language and country.
If you are using Asian languages, such as Chinese, Korean, Japanese or Thai, select the options in the Supplemental language support area on the Languages tab.
There are two written Chinese formats: Simplified and Traditional. Be careful to choose the right one: Use Chinese (PRC) and China for Simplified Chinese, and Chinese (Taiwan) and Taiwan for Traditional Chinese.