Error Code 0x80040C01 Summary
Error code 0x80040C01 typically indicates an issue with the Microsoft Data Access Components (MDAC) or ActiveX Data Objects (ADO) in Windows environments. This error can arise due to various reasons, such as corruption of registry settings related to ADO, incorrect configuration of database drivers, or issues with third-party software that relies on MDAC/ADO components.
Where Does Error Code 0x80040C01 Appear? Description
This error often occurs when attempting to connect to a Microsoft SQL Server using ADO from an application, typically in development and testing environments where the setup might be incomplete or corrupted. For instance, during the execution of scripts or queries through tools like VBA (Visual Basic for Applications) within Excel, Access forms, or custom applications developed with languages such as VBScript or ASP. It can also appear when running SQL Server Management Studio (SSMS) if there are issues with ADO configuration on your system.
Howto solve error code 0x80040C01
To resolve the 0x80040C01 error, follow these detailed steps:
- Restart the computer to ensure that all services and drivers are reloaded correctly.
- Uninstall and reinstall MDAC. Go to Microsoft’s website to download and install the latest version of MDAC.
- Check if there is a corrupted or missing registry key related to ADO in the Windows Registry Editor (regedit.exe). Be cautious when editing the registry, as incorrect changes can cause system instability. Look for keys under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ADO and ensure they are intact.
- Delete any temporary files that might be causing conflicts. Use Disk Cleanup utility or manually delete files from %TEMP% and %USERPROFILE%\Local Settings\Temp directories.
- Update the database drivers to their latest versions, especially if you’re working with SQL Server. Ensure compatibility between your application and the server.
- If using a third-party software that relies on ADO/MDAC, check for updates or contact support from the developer.
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