Interlex is a free Windows application that helps you learn vocabulary in a foreign language quickly and easily. The idea behind the program is very simple; first you compile a list of words and phrases and then you test yourself until you have learnt them completely. Interlex has targeted testing in 4 different modes. It also has multiple translations in native language. Other features include; intelligent evaluation of alternative responses, informative feedback using text, color and sound, powerful editor with Undo, Sort, selection of ready-to-use vocabulary files, wide range of user preference options and context-sensitive Help and daily tips. Interlex provides a highly focused, interactive learning environment that allows you to improve your language skills rapidly. Creating your own Interlex files is an excellent way to explore a language and become familiar with new vocabulary. Interlex can be very useful for language learners and teachers.