To apply the component-based approach to distributed real-time software development, it is necessary to identify components based on both functional and real-time requirements. Since a component may be acquired from external sources, it becomes necessary during integration to ensure that a component satisfies the real-time requirements of the target application software.Since these requirements vary, a component should be customizable so that during integration it can adapt itself to the specific real-time requirements of the target-distributed software. To facilitate such activities, it is preferable to have components that are capable of performing self-customization using a set of built-in services. In this paper, an object-oriented real-time component framework and two built-in customization services are presented to address the specified issues.