This specification describes the form and estlishes the interpretation of programs written in the C# programming language. It describes The representation of C# programs; The syntax and constraints of the C# language; The sematic rules for interpreting C# programs; The restrictions and limits imposed by a conforming implementation of C#. This specification does not describe The mechanism by which C# programs are trans formed for usebyt a data-processing system; The mechanism by which C# application are invloked for used by a data-processing system; The mechanism by which input data re transformed for used by a C# application; The mechanism by which output data are transformed after being produced by a C# application; The size or complexity of a program and its data that will exceed the capacity of any specific data Processing system or the capacity of a particular processor; All minimal requirements fo a data-processing system that is capable of supporting a conforming implementation.