Extended Linguistic Services (ELS) is a new feature in Windows 7 that allows developers to use the same small set of APIs to leverage a variety of advanced linguistic functionality. By using ELS APIs in Windows 7, developers can auto-detect the language of any piece of Unicode text and use that information to help make smarter user experience choices for customers around the world. ELS also offers built in transliteration support that converts text from one writing system to another. For instance, developers can now auto-convert text between Simplified and Traditional Chinese to help people communicate with each other across linguistic boundaries. By using ELS APIs, developers will be able to use existing ELS services as well as pick up new services in the future without learning new code.
Windows 7: Writing World-Ready Applications