What is the CLR?
CLR = Common Language Runtime. The CLR is a set of standard resources that (in theory) any .NET program can take advantage of, regardless of programming language. Robert Schmidt (Microsoft) lists the following CLR resources in his MSDN PDC# article: • Object-oriented programming model (inheritance, polymorphism, exception handling, garbage collection) • Security model • Type system • All .NET base classes • Many .NET framework classes • Development, debugging, and profiling tools • Execution and code management • IL-to-native translators and optimizers What this means is that in the .NET world, different programming languages will be more equal in capability than they have ever been before, although clearly not all languages will support all CLR services.