...

SL.DotNet.exe startCollectorServiceSession --buildSessionIdFile buildSessionId.txt --labId my_labId --processName w3wp.exe --processTagapplicationPool DefaultAppPool --includeChildProcesses true

...

Note: This command can be run on a remote machine (like the CI running the tests) while providing the host to start the session on it, using the parameter: --machine <IIS host> 

Un-installing the Coverage Collector Service

...