Please note that .NET Demon was retired on December 3rd 2014

Red Gate has now stopped selling .NET Demon. This means that additional copies of .NET Demon, and extensions to support contracts, are no longer available.
If you have a license for .NET Demon, it will still work and you can keep using it for as long as you like, but Red Gate won't be doing more work on the tool, so unfortunately there won't be any further updates and Red Gate won't be supporting future versions of Visual Studio.

Visual Studio 2015 will introduce Microsoft's new Roslyn compiler, with improvements which Red Gate believe make .NET Demon redundant. If you're an existing user, you can keep using .NET Demon with VS 2010–2013.