WebMatrix is a bundle of tools designed to allow developers to quickly install and publish open-source applications or built-in templates to create, publish and maintain their Web sites. Included in the bundle are a Web server, database engines, various programming languages and more. It is aimed at developers using ASP.Net, PHP, Node.js and/or HTML5.
Originally launched in 2010, WebMatrix got its start as a collection of a lightweight version of Microsoft’s IIS Web Server, known as IIS Express; an updated version of SQL Server Compact Edition; and a new “view-engine option” for ASP.Net, known as “Razor,” which enabled developers to embed Visual Basic or C# within HTML.
WebMatrix isn't the only Microsoft development tool suite we'll be hearing about this week. Microsoft is holding its Visual Studio 2012 virtual launch on September 12, starting at 9:30 am PT, where company officials will share more about the newest Visual Studio release and how it figures into developing Metro/Windows Store/modern apps.