SQL Server Native Client (SNAC) is not supported beyond SQL Server 2012. Avoid using SNAC in new development work, and plan to modify applications that currently use it. The Microsoft ODBC Driver for SQL Server provides native connectivity from Windows to Microsoft SQL Server and Microsoft Azure SQL Database.
The ODBC Driver Manager returns all SQLDrivers attribute specification strings. For more information about attribute string and value definition, see the Data Access and Storage Developer Center, or you can view the ODBC Programmer's Reference online.