Enterprise- level HTML5 application development platform
With its familiar .Net visual drag n' drop, WYSIWYG designer and HTML5 rendering engine, Visual WebGui is the natural choice for core Visual Studio developers who want to create native quality, cross-platform enterprise level HTML5 apps in VB.NET or C#.
AssemblyEdit is a powerful, lightweight and modern editor for the assembly low-level programming language, that works on Windows NT (NT/2000/XP/2003/Vista) systems.
GameGuts is a collection of low-level services for game development. It is not a game engine; it is a foundation on which to build an engine. A DLL with a C API, targeted at higher-level languages. Includes bindings for .NET, more to come.