Описание тега webmatrix
Microsoft WebMatrix consists of a basic IDE bundled with a simple but powerful SQL database and a lightweight web server. WebMatrix is no longer recommended as an integrated development environment for ASP.NET Web Pages. Use Visual Studio or Visual Studio Code.
Microsoft WebMatrix is a basic development environment for creating websites. It's bundled with a simple but powerful SQL server (SQL Server Compact) and a lightweight web server (IIS Developer Express).
Languages supported include C#, VB.NET, and PHP. The native view engine uses Razor syntax optimized for HTML development. Although the full ASP.NET stack is available, developers can choose "Web Pages" which offer simplified web development.
Also see: razor, sql-server-ce