This paper describes a new approach in designing communications between processes in a multi-threaded environment. This technique supports real-time performance and can be adapted for embedded operating systems. At present, Message-Passing is a widely used technique in designing Interprocess Communication Systems. This design may degrade performance of Real-time Systems. The present research introduces a library-based architecture for Interprocess Communication Systems (IPC) adaptable in Real-time Embedded Operating Systems. It achieves improved real-time performance by running IPC as a set of library functions.