That bat and ini have not been made by me.
If you want to use the bat solution just put the following in a text file and rename as bat:
While I don't think it was an "ini" in the other solution, probably it was a steam_appid.txt file containing 204080 at the first line.
Probably the bat you had there contained: steamlobbylist.exe ""
Just guessing, the command-line syntax is the one I provided before.
The following is the full help provided by the tool at runtime:
Usage: steamlobbylist <appID*>
Use appID equal to "" or ALL to list all the lobbies of the installed games
Use appID with a FROM-TO to scan all the id in that range
You can also use the comma as separator
Some games allow you to query their lobbies even if you don't own them.