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This paper presents a novel extension to the C++ programming language, allowing powerful expression of concurrency and synchronization in an object-oriented environment. The principle advantages of this extension over existing alternatives are its powerful yet simple expression, its ease of use, and the strict parsimony of additions made to the C++ syntax. The concurrent and object-oriented capabilities of our approach make it particularly useful for facilitating the construction of complex software systems, such as communication protocol stacks. The paper shows that the structures obtained with our proposal are simpler and more efficient than those obtained with SDL-like primitives. The semantics of the novel features are defined with respect to the Calculus of Communicating Systems (CCS).