A Software Development Kit (SDK) to realize multilingual support with external language packs for Win32 software. It is a leading solution about software multilingual supporting technology, which is emphasize the demand of the small or medium scale software companies. The core of the LocWise Lib invokes Windows API, itself doesn't need any other extra support of MFC or OWL, but we do add support to MFC programming. With LocWise Lib, it’s easy to create a new application with multilingual support. To the existing program, only few codes are needed to validate the multilingual function. It’s not necessary to recompile the whole project because the language packs can be added or modified dynamically. Obviously, the external language packs are easy to translate and maintain. Furthermore, a professional language pack generator is available to make your language packs convenient creation and translation.