Spine language is a type of programming language developed by Microsoft in the late 1990s. It is an object-oriented language that is used to create dynamic web applications. It is based on the Component Object Model (COM) and is designed to be easy to use and understand. Spine language is used to create web services, web applications, and other distributed applications. It is also used to create client-side applications such as Windows Forms and Windows Presentation Foundation (WPF).