Ole Db Driver -

Modern OLE DB drivers, particularly the newest , include advanced features that the original versions lacked: OLE DB Driver for SQL Server - Microsoft Learn

It provides native, high-speed access to the SQL Server Tabular Data Stream (TDS) protocol. ole db driver

When using the latest driver in your application, your connection string should specify the provider as follows: Modern OLE DB drivers, particularly the newest ,

Dim conn As New ADODB.Connection conn.ConnectionString = "Provider=MSOLEDBSQL19;Data Source=sqlprod;Initial Catalog=mydb;Integrated Security=SSPI;Encrypt=yes;" conn.Open | Notes | |----------------|--------|-------| | VB6 / ADO

Results on identical hardware, Windows Server 2022, SQL Server 2019.

| Application Type | Works? | Notes | |----------------|--------|-------| | VB6 / ADO | ✅ Yes | Set DataTypeCompatibility=80 if you encounter binding errors. | | VC++ (ATL/ODBCTemplates) | ✅ Yes | Best performance. | | SSIS 2016+ | ✅ Yes | Requires 2016+ or Azure Data Factory. | | MS Access 365 (linked tables) | ⚠️ Partial | Some form controls may freeze; use with OLEDB_Services=-2. | | PowerShell (System.Data.OleDb) | ❌ No | .NET OleDb bridges to COM but fails with MARS. Use SqlClient instead. |