Tailoring of health-related messages is effective in motivating behavior change. However, planning, designing, and implementing a tailored health promotion program can be a challenge. This article describes the process of creating a tailored multimedia program for presentation via computer to promote factory workers' use of hearing-protection devices to prevent noise-induced hearing loss. The creation process was segmented into 5 phases: 1) determination of program content; 2) creation of overall program design, including live action and still video and addition of sound and graphics; 3) development and integration of tailoring pathways into the final intervention; 4) development of a database and participant handouts; and 5) pilot testing of the intervention program. The approach used in this research program can serve as a prototype for future development of computerized multimedia health promotion interventions and can assist others in the effective use of this medium.