ThinApp User’s Guide : Configuring Package Parameters : Configuring Locales : AnsiCodePage

The AnsiCodePage parameter displays a numerical value that represents the language of the operating system on which you capture the application. ThinApp uses the value to manage multibyte strings.
This parameter does not perform language translation. The value that affects the display of text strings and use of the strings within the application.
When the operating systems of the deploy and capture computers have different languages, you might check the AnsiCodePage parameter.