The HIV Hypermedia Medical Education Software was first released in late 1993 and distributed to medical schools, general practitioners and other health-care related individuals and institutions. Evaluation took place throughout the design and development process. There were four major forms of eliciting user feedback: informal discussions during development; informal discussions with users of the finished package; expert review of the completed package; and a voluntary questionnaire. Despite a poor response rate, the questionnaire revealed valuable information and indicated that most users would continue to reference the program. We incorporated this feedback into an updated version of the package, now ready for release. This paper is a review of our evaluation process with our further aim being to improve the evaluation methods themselves.