This question already has an answer here:
I want to ask a question about whether a license is required to use an ODBC driver, but I don't know whether it is on topic or not.
The question I'm meant to ask is:
We have a product that uses SQL Server as the database back-end. We want to switch over to SQL Server Native Client ODBC driver instead of the default SQL Server ODBC driver that comes default with the OS installation.
Is there any additional licensing requirement that I have to be aware of?
Currently, I have no idea what license is used when the product is sold to the customer. However, it is safe to assume that the license covers the usage of the default SQL Server ODBC driver.