Install the latest service packs on SQL Server, or add UseFMTONLY=0; to your connection string (though this is a temporary workaround). Better: Update your SQL Server TLS configuration. Issue 3: Installation fails with "Pending reboot" Cause: A previous Windows update or software installation left a pending reboot flag.
The application is trying to load the 32-bit provider, but you installed only the 64-bit version (or vice versa). download microsoft ole db driver for sql server 18
| File Name | Architecture | Use Case | | :--- | :--- | :--- | | msoledbsql.msi | Both x86 & x64 | This is a unified installer that will install both 32-bit and 64-bit components. | | msoledbsql_x64.msi | x64 (64-bit) | For 64-bit-only systems (e.g., 64-bit Windows Server). | | msoledbsql_x86.msi | x86 (32-bit) | For 32-bit systems or applications. | Install the latest service packs on SQL Server,
Provider=MSOLEDBSQL;Server=myServerName\myInstanceName;Database=myDataBase;Uid=myUsername;Pwd=myPassword; Provider=MSOLEDBSQL;Server=myServerName;Database=myDataBase;Trusted_Connection=yes; For Azure SQL Database with Microsoft Entra ID (formerly Azure AD): Provider=MSOLEDBSQL;Server=tcp:myServer.database.windows.net,1433;Authentication=ActiveDirectoryInteractive;UID=myUser@contoso.com;Database=myDataBase; Important: Older applications that used SQLNCLI11 or SQLOLEDB must be updated to use MSOLEDBSQL . You cannot simply rename the provider; you may need to adjust data types and connection properties. Part 7: Common Troubleshooting Issues & Fixes Issue 1: "Provider cannot be found. It may not be properly installed." Error message: "Provider 'MSOLEDBSQL' is not registered on the local machine." The application is trying to load the 32-bit
Re-run the unified installer ( msoledbsql.msi ), which installs both architectures. Alternatively, explicitly install the missing architecture .msi . Issue 2: "SSL Security error – TLS 1.2 required" Cause: Driver 18 enforces TLS 1.2 by default. Older SQL Servers (2012 without patches) may not support it.
With the release of version 18, Microsoft introduced a slew of improvements, including stronger TLS 1.2 support, Multi-Subnet Failover enhancements, and better compatibility with the latest SQL Server 2022 features. If you are a developer, a database administrator, or an IT professional working with legacy applications (like those built on Visual Basic 6, classic ASP, or older C++ applications) that require OLE DB, Driver 18 is the version you need.
Restart your computer and run the installer again. Issue 4: Cannot uninstall previous version Cause: You might have an older OLE DB driver (v15 or earlier) still present.
