‘Add reference’ only works for ActiveX DLL’s that expose a COM interface, which is not the case for the K8055 DLL. If you are using VB.NET, then ‘Add reference’ is meant for Assembly files which also have the ‘.dll’ extension.
What you need to do is import the functions contained in the DLL through code. There is no wizard in Visual Studio to do this for you. Have a look at some of the examples on our downloads page.
velleman.eu/be/en/download/files/
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