OPC Data Client .NET Demo Applications

The demo applications for .NET Framework are categorized by the OPC technology they use:

OPC Data Client .NET Demo Applications for OPC Classic
OPC Data Client .NET Demo Applications for OPC UA (Client-Server)
OPC Data Client .NET Demo Applications for OPC UA PubSub

This functionality is not available under (or the text does not apply to) .NET 6+ development platform.

That is, the demo applications are shipped built for .NET Framework. Their source code is available in the Examples, and they can be built for .NET 6+ as well.