This volume provides a hands-on tutorial — for beginners and professionals alike — to the powerful new programming language, Visual Basic for MS-DOS — a new development language that lets general computer users create visually appealing applications — i.e., fully functional GUI applications — that run in the Microsoft Disk Operating System (DOS) environment. Shows how to create custom applications; modify a custom application; build a multiform application; add features to a multiform application; produce sound and graphics; use data files; create menu controls; program for error handling.