From the log I can see that Web Display is being started automatically by PF3 and appears to be connecting and running correctly.
Using the default values for WD you should be able to connect to
http://localhost:7339/ or
http://192.168.1.112:7339/ as given in the log.
So a question for you: Are you trying to use a browser on the same system as PF3 and WD, or a different device?
It should be possible to connect from the same system without issue, the firewall may well be getting in the way from another device.
As for 'not finding the .ini file', the file needs to be in the same folder as PF3WebDisplay.exe - that's the only location where the WD program looks.
For many users starting out the default values will work just fine, as the manual tries to explain - in this case no ini file is needed.
This applies in particular to PF3Port, PF3Host and WebPort, so these values are probably not required (WD seems to be connecting just fine).
However, ATCRadio and RemoteText are required if you wish to enable those features, the others in the sample file show possible customisations.
I hope that this helps, but do please come back if you're still having problems.
Martin