Can I somehow connect to the sql server?

Question

Database

There is an ancient program that connects to a 2005 SQL EXPRESS server. An employee working with her put a com with windows 10 and found:
dbnetlib connectionopen (connect()). sql server does not exist or access is denied
Tried to update the server version to 2008 - no change.
The program connects with windows XP, windows 7, but refuses with 10.
From the same computer, SQL studio is freely connected.
I checked with others - the connection does not work from 2012 and 10, it works from earlier versions.
What could be the problem?

Answer 1

Is the firewall turned on at the workplace? Port, for connection to SQL, the standard is used? Will you show the connection parameters to SQL (conection string, if any)?