The first problem is:

Z1 (oP group) ..
ZorroMT4.dll => MT4 plugin mounted
Login MT4..
!Can't initialize MT4 bridge!
Check account number xxxxx
Can't connect!

The Zorro EA is successfully loaded ("Controlled by Zorro Bridge 1.9" and the Smiley).

The other Zorro instance is connected to the other MT4 instance without problems. The 2 MT4 terminals are installed in different folders.
So far I have only one ZorroS installation (installing in multiple folders might be an idea but more complex to manage ...)

How does Zorro actually "find" the MT4 instance(s) and the bridge(s)?