Language Extender (LE) provides the localization of Windows CE OS and built-in applications interface to Your native language and enables Your native keyboard layouts.
If You choose to install full version of localization onto Your mobile device, then icons on desktop, menus, dialogs will be translated. Also a keyboard driver will be installed onto your mobile device, enabling You to type on Your native language, exactly the same way as You do in Windows.
If You choose to install lite version, only keyboard driver will be installed on Your device. In this case icons, menus and dialogs will remain in English.