Alex realized the legacy app didn’t truly need version 10.0 — it just needed any SQL Server ODBC driver that spoke the same protocol.
The Microsoft SQL Server Native Client 10.0 ODBC driver (SNAC 10) is no longer available as a standalone product but is distributed as part of the . While the Native Client series is deprecated, it remains functional for legacy applications connecting to SQL Server 7.0 through SQL Server 2022. Official Download Sources