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Fix 64-Bit Access OLE DB Crashes and Random Access Violations
Question details
Users experience application crashes and access violations when executing repeated database operations via 64-bit Microsoft Access databases or OLE DB drivers.
- Product
- Microsoft Access
- Device & OS
- not provided
- Scenario
- Running continuous or repeated database operations in applications connected through 64-bit OLE DB drivers on newer Microsoft 365 builds.
- Observed behavior
- The application suddenly crashes, often accompanied by ucrtbase.dll faults and COM reference-count errors.
Verify your current Microsoft 365 build version and check if the application crashes consistently trigger on specific database queries or operations.
Test Alternative Architectures and Engine Versions
Comparing behavior across different architectures and engine builds helps isolate whether the bug is strictly tied to the 64-bit driver.
Recent Microsoft 365 updates may introduce bugs specific to the 64-bit architecture of OLE DB drivers. Downgrading the driver or switching architectures can provide an immediate workaround while a permanent patch is developed.
Install and run the application on a 32-bit version of Microsoft Office to determine if the crash is strictly isolated to the 64-bit architecture.
Navigate to the Microsoft Download Center, search for the latest supported Access Database Engine, and install the updated OLE DB components to ensure you have the most recent bug fixes.
If the issue started recently, use the Office Deployment Tool to temporarily revert your Microsoft 365 installation to an earlier build version where the database operations were stable.
Review Application Code for COM Object Handling
Improper COM object release can lead to memory leaks and ucrtbase.dll faults during database operations.
Report the Bug to Microsoft
Submitting a reproducible case ensures the Microsoft development team is aware of the issue for future patches.
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- 1. Download the Installer: Visit the official WPS Office website and download the free installer for your operating system.
- 2. Install WPS Office: Run the setup file and follow the on-screen instructions for a quick, hassle-free installation.
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Frequently Asked Questions
What causes ucrtbase.dll faults in Access applications?
This fault typically occurs due to memory access violations. In the context of databases, it is often linked to improper COM object reference-count handling or underlying bugs in the 64-bit OLE DB drivers present in newer Microsoft 365 builds.
Should I use 32-bit or 64-bit Office for my database operations?
While 64-bit Office can handle larger amounts of data and system memory, the 32-bit version historically offers better compatibility with legacy 32-bit OLE DB drivers, older database add-ins, and third-party controls.
How do I update my Access Database Engine?
You can update the engine by navigating to the official Microsoft Download Center, searching for the 'Microsoft Access Database Engine Redistributable,' and running the installer to apply the latest component updates.
