Which programming language(s) does Windows Phone 7 (WP7) support?

As I recall, WP7 supports C# but does not support any of the .Net dynamic languages (Ruby or Python). Are any other programming languages besides C# supported? Could an app be developed using Boo?

What programming language does Windows 7 use?

Microsoft Windows Microsoft's Windows kernel is developed mostly in C, with some parts in assembly language. For decades, the world's most used operating system, with about 90 percent of the market share, has been powered by a kernel written in C.

Which programming languages are supported?

These include: C++ - C# - CSS - Dart - Dockerfile - F# - Go - HTML - Java - JavaScript - JSON - Julia - Less - Markdown - PHP - PowerShell - Python - R - Rust - SCSS - T-SQL - TypeScript.

Officially, only C# is supported so far. Unofficially, any language that can compile to a verifiable managed assembly (the verifiability requirement applies to all dependencies, too!) is good - so you should be able to use e.g. C++/CLI, F#, Delphi Prism...