The Measurement Studio .NET class libraries, including the user interface controls, are licensed .NET assemblies which require license string entries to be added to the licenses.licx file associated with the project. If Measurement Studio integration features are installed, Measurement Studio automatically generates the licenses.licx file and adds license string entries for the Measurement Studio components you reference in your project. However, because Measurement Studio 2015 does not support integration with newer versions of Visual Studio, Measurement Studio does not add or update the .licx file if you add a reference to a .NET assembly using newer versions of Visual Studio.
Because the licenses.licx file and the license string entries are not added automatically when you add references to your project when using newer versions of Visual Studio, you need to create a licenses.licx file and add the license strings manually. To generate entries to put into your .licx file, see How Can I Create a .licx File for My Measurement Studio Project? For more information about creating and manually adding and editing the licenses.licx file, refer to Creating a .licx File Without Visual Studio-Integrated Tools.