Distributed multimedia applications have Quality of Service (QoS)requirements that current communication systems are not able to handle.Dynamic Configuration of Protocols (Da CaPo) is a framework for dynamically configurable lightweight communication protocols. Da CaPois still being developed, and one way to continue that development isto make it take advantage of real-time scheduling in an OperatingSystem (OS) that supports this. Real-Time Linux (RTLinux) is a variantof the Linux OS that offers hard real-time capabilities, while stillretaining all the features of Linux. The goal of this thesis is toimprove Da CaPo by utilizing the superior resource management inRTLinux. A design for a multi-threaded Da CaPo for RTLinux is presented.The design includes selected parts of the Da CaPo framework, andidentifies and solves problems related to RTLinux. The design hasbeen partly implemented and informally verified. The thesis showsthat RTLinux is a suitable platform for a real-time enabled versionof Da CaPo.