Looks like you forgot a the second dash on the port flag.
I was able to start it with the latest version in powershell and CMD.
Powershell:
& ".\Remote Sensor Monitor.exe" --p=5555 --hwinfo=1 --gpuz=0 --aida64=0 --ohm=0
CMD:
"Remote Sensor Monitor.exe" --p=5555 --hwinfo=1 --gpuz=0 --aida64=0...
