Where are DAQmx .NET and API's Documentation?

Hi,

I am working on some project where I need to use NI-DAQmx to create application using Visual C# .NET without Measurement Studio.

I have installed the latest NI-DAQmx 16.1.0., I managed to install .Net Framework 4.5.1 language support as well as the correspondent examples. But I can not find any DAQmx .NET and API Documentation.

Spent a lot of time on the forum and NI site and cannot not find anything.

Please help

Thank you