Abstract: A method of translating screen displays of a user application program from a first base language to a user-selectable second language. The method is driven by program software which intercepts the messages created by a presentation manager of a WINDOWS operating system, the messages being used to form screen displays of the user application program on the terminal. Initially, the untranslated text is moved from a displayed screen to a translation table. The user, who need not be a programmer or computer oriented, enters a translation of the text into the same table via the keyboard, the table then being stored in computer memory. Upon subsequent operation of the application program the message, which forms the screen to be displayed, will be intercepted. Subsequently, a search of the translation table for the text in the intercepted message is conducted. The matched text is replaced with the second language previously entered in the translation table.