In this paper, we examine a new CSP inspired library for the Common Intermediate Language: CoCoL (Concurrent Communications Library). The use of the Common Intermediate Language makes the library accessible from a number of languages, including C#, F#, Visual Basic and IronPython. The processes are based on tasks and continuation callbacks, rather than threads, which enables networks with millions of running processes on a single machine. The channels are based on request queues with two-phase commit tickets, which enables external choice without coordination among channels. We evaluate the performance of the library on different operating systems and compare the performance with JCSP and C++CSP.