DAQ-DNC is compatible with .NET Framework 4.6.2 or later.
Therefore, the DAQ-DNC icon will not be visible in projects using .NET Framework 4.6.1 or earlier.
In this case, please change the project settings to use .NET Framework 4.6.2 or later.
Note: Visual Studio 2017 is .NET Framework 4.6.1 by default.
Also, Visual Studio 2015 is .NET Framework 4.6 by default.
For this reason, even if you follow the steps in [How to Use DAQ-DNC -> Introduction], the DAQ-DNC icon will not be visible on the toolbox.
Please change the project settings to use .NET Framework 4.6.2 or later.
<Visual Studio 2017, .NET Framework 4.6.1>
* If [Show All] is enabled, the DAQ-DNC component can be visible in grayout.
<Reference: Enable [Show All]>
Right-click the mouse on the Visual Studio toolbox to display the pull-down menu.
Select [Show All] from the pull-down menu to display invisible icons.
The following is a screen from Visual Studio 2017.
The screen may differ depending on the version of Visual Studio.