Azure

ASP.NET

In Accordance with Microsoft, ASP.NET is a free web framework for building great web sites and web applications using html, css and javascript.

Dynamic Language Runtime

The Dynamic Languague Runtime (DLR) is a runtime environment that adds a set of services for dynamic languages to the common language runtime (CLR). The DLR makes it easier to develop dynamic languages to run on the .NET Framework and to add dynamic features to statically typed languages.