SQL Native Client (OLE DB)
The SQL Native Client OLE DB provider is a low-level, COM API that is used for accessing data. The SQL Native Client OLE DB provider is recommended for developing tools, utilities, or low-level components that need high performance. The SQL Native Client OLE DB provider is a native, high performance provider that accesses the SQL Server Tabular Data Stream (TDS) protocol directly.
The SQL Native Client OLE DB provider exposes interfaces to consumers wanting access to data on one or more computers running an instance of SQL Server 2005 or earlier.
The SQL Native Client OLE DB provider is an OLE DB version 2.0–compliant provider.