Either copy one of the OPCHDA.NET sample projects or create an new project using the Advosol\OPCHDA.NET Visual Studio New Project template.

To make this application work with UA server, replace the OPCHDA.NET reference with references to:
-  OpcHdaWrapperUA.Net4.dll
-  OpcNetBase.Net4.dll
-  OpcHdaNetUAoption.Net4.dll

Configuration and Certificate

Before a UA client application can be executed a configuration file and a certificate needs to be created.
This is best done with the UaClientConfigHelper utility. See the Configuration chapter for details.