Instructions provided are for creating an OLE DB connection to an ODBC data source using a file-based DSN (data source name).
Microsoft OLE DB Providers are included with ArcGIS.
The list may be different than this example, as proprietary and third-party OLE DB providers for other data sources may be installed on the machine being used.
Generating ODBC connection string from a file based ODBC DSN.
Check the Allow saving password option before exiting from the Data Link Utilities dialog box.