Managed .NET
The components of the Managed .NET documentation are installed as part of the ObjectARX SDK and the product Help. The .NET Developer's Guide is located in the AutoCAD Help system, while the .NET Reference Guide is part of the ObjectARX SDK.
.NET Developer's Guide:
AutoCAD 2015
AutoCAD 2014
AutoCAD 2013
AutoCAD 2012
The Managed .NET Reference Guide can also be integrated with Microsoft Visual Studio.
AutoCAD 2015 (supports Microsoft Visual Studio 2012)
AutoCAD 2014 (supports Microsoft Visual Studio 2010 and 2012)
AutoCAD 2013 (supports Microsoft Visual Studio 2010)
AutoCAD 2012 (supports Microsoft Visual Studio 2010)