Computer-based instructional technology has developed significantly in recent years. Rapid developments in hardware are now being paced by significant advances in courseware authoring tools. This paper presents a brief overview of one such software tool, Authorware Professional for Windows1. This package allows easy development of highly interactive computer-based learning modules. Authorware was used to develop a number of instructional modules for use in an introductory course in fluid mechanics. Some examples of the courseware are given to show the flexibility and power of this software tool.