Windows - see active ETW sessions so that I can close one of them

Question

I am working with Event Tracing for Windows API, and from time to time, I run my application and it does not manage to close the ETW trace controller session after opening it.<

Answer 1

The QueryAllTraces function retrieves the properties and statistics for all event tracing sessions started on the computer for which the caller has permissions to query.

May I suggest to post the second part of your question as a seperate question?