We have started seeing "failed to open database connection" error in our application after the recent Cumulative update for Windows 10 Version 1809 for X64 based Systems(KB4532691).
Our Application is a VB 6 application that is using MSAccess 2010 database engine for database handling.
Application is failing to run database queries with the following error
2/19/2020 9:30:23 AM, ---------------------------------------------
2/19/2020 9:30:23 AM, Error (3709) The connection cannot be used to perform this operation. It is either closed or invalid in this context.
2/19/2020 9:30:23 AM, ---------------------------------------------
2/19/2020 9:30:23 AM, Failed to open database connection to execute SQL: Delete from tbl***
Event Viewer shows the following information on the failure
The system has called a custom component and that component has failed and generated an exception. This indicates a problem with the custom component. Notify the developer of this component that a failure has occurred and proved them
with the information below.
Component Prog ID: SC.Pool 11
Method Name: IDispenseDriver::CreateResource
Process Name:: MyApplication.exe
Exception: c0000005
Address: 00000000
I found that reinstalling the access database engine fixes this problem ,but i am not sure it won't break again with next windows update.
I am trying to understand what SC.Pool? and what changed in the new windows update that is causing this access violation?
Any help with this issue is really appreciated.
Thanks
