The SCOOP model (Simple Concurrent Object-Oriented Programming) [Mey97] offers a comprehensive approach to building high-quality concurrent and distributed systems. The model takes advantage of the inherent concurrency implicit in object-oriented programming to provide programmers with a simple extension enabling them to produce concurrent applications with little more effort than sequential ones.,In this article, we present SCOOPLI for NET: a library implementation of SCOOP. We focus on the mapping of SCOOP concepts to NET constructs. We show how processors can be mapped to application domains, and how separate calls are implemented. We also discuss distributed programming with SCOOPLI. Finally, we point out the improvements that may be achieved by the use of NET, as opposed to the previous, thread-based, implementation.