In the article, the author tries to answer on the question: what critical factors influence the management of a multimedia application maintenance program in a medium-sized en-terprise. The research was conducted according to the case study methodology. Author use methods: participant observation, documentation analysis, and face-to-face interviews. The results of this research allow bettering understanding of the processes in the enterprise dur-ing the implementation of the application maintenance program. The study identified criti-cal factors and proposed changes. ... In the article, the author tries to answer on the question: what critical factors influence the management of a multimedia application maintenance program in a medium-sized en-terprise. The research was conducted according to the case study methodology. Author use methods: participant observation, documentation analysis, and face-to-face interviews. The results of this research allow bettering understanding of the processes in the enterprise dur-ing the implementation of the application maintenance program. The study identified criti-cal factors and proposed changes.