Abstract. In this paper, we propose system support for building adaptive migratory continuous media applications in distributed real-time environments. In future distributed computing environments, various objects in homes and oces will embed computers, and various applications will be moved between these computers according to the location of these users. These environments are considered as one of typical future distributed real-time environments. However, since the computers may have dramatically dierent hardware and software congurations, the application cannot be moved without taking into account the conguration of the computer that the application is migrated. Therefore, migratory applications should be aware of environments that they are executed.