Check manual page of winperf_ts_sessions
Microsoft Terminal Server Sessions
This check monitors the number of active and inactive Microsoft Terminal
Server Sessions using the windows performance counters (agent section
To make this check work, you need to configure the agent via it's check_mk.ini
file to forward the terminal service session related counters. Take a
look at the windows monitoring documentation for details.
It allows to set WARN and CRIT tresholds on the active and idle session.
The check generates service per host.