Assume that you run Microsoft ADO.NET provider for DB2 to connect to IBM DB2 for z/OS through IBM DB2 Connect Gateway. In this scenario, you may receive an error message that resembles the following: Commit Exception Type: Microsoft.HostIntegration.MsDb2Client.MsDb2Exception.

This article demonstrates both the SqlClient class (to connect to a computer that is running Microsoft SQL Server) and the OleDb class (for any database that has an OLE DB or ODBC driver available) within ADO.NET.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

The April 9, 2024 update for Windows 10, version 1809 and Windows Server 2019 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.7.2. We recommend that you apply this update as part of your regular maintenance routines.

Version: .NET Framework 3.5 and 4.8. The April 9, 2024 update for Windows 11, version 21H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8. We recommend that you apply this update as part of your regular maintenance routines.

The following registry keys can be set to use the operating system defaults for SSL and TLS instead of the hardcoded .NET Framework defaults for a managed application running on the computer. For 64-bit operating systems: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]

The April 9, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

Symptoms. When you use Microsoft OLE DB Provider for SQL Server (OLEDBSQL) in ADO.NET, if you try to start more than one transaction in a session, you receive the following error message: System.Data.OleDb.OleDbException: Cannot start more transactions on this session.

How to obtain and install the update. This update is available on Microsoft Update for Windows client operating systems and available on WSUS and MU Catalog for Windows Server operating systems. Prerequisites. This update will be offered if you have .NET 7.0 installed on a supported version of Windows. Restart Requirement.

Version: .NET Framework 3.5 and 4.8. The October 10, 2023 update for Windows 10 Version 21H2 and Windows 10 Version 22H2 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8. We recommend that you apply this update as part of your regular maintenance routines.