Visual Studio Development Server discontinued in the Visual Studio 2013 Preview

I have been making my hands dirty with the Visual Studio 2013 Preview version and ASP.NET 4.5.1 for some time now. While there are quite a large number of new features introduced in ASP.NET, one feature that got dropped almost silently is the Visual Studio Development Server (Cassini).

While Visual Studio Development Server was a legacy web server used for development purpose, Microsoft later introduced IIS Express which kind of serves the same purpose. Visual Studio 2012 had the IIS Express as default web server, though it continued support for Visual Studio Development Server – it was possible to use Visual Studio Development Server to host the ASP.NET web application.

Visual Studio 2012:

Visual Studio 2013 preview now no longer supports Visual Studio Development Server (Cassini) – it supports only IIS, IIS Express or External Host.

Visual Studio 2013 Preview:

While this is a small change, it’s worth mentioning for all the ASP.NET long timers. In future blog posts I would cover some of the new features of ASP.NET 4.5.1


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