It is unknown whether or not a certain TCP/IP is in use.
Power Monitoring Expert 9.x
Power Monitoring Expert 8.x
Power Monitoring Expert 7.x
Power Monitoring Expert Server
Windows Operating System
Open a Command Prompt running As Administrator and run "netstat -ano" (see below).
The first line under Local Address indicates that the local machine is listening on port 80 which is being used by Web Reporter. You can use the (Process ID) PID to locate the service or application that is using that specific port.
The following web page explains in detail how to interpret the netstat -ano results.