You install a legacy 32-bit reporting application on a 64-bit Windows Server 2022 host. The program launches, but every time it tries to open its ODBC data source it terminates and records the runtime message "IM014 - The specified DSN contains an architecture mismatch between the driver and application." No other errors appear in Event Viewer. Which action is MOST likely to restore connectivity without changing the application's code?
Open TCP port 3306 in Windows Defender Firewall for outbound traffic from the application.
Re-create the DSN with %windir%\SysWOW64\odbcad32.exe and bind it to a 32-bit ODBC driver that matches the application.
Increase the server's paging file to ensure enough virtual memory is available.
Use regsvr32 to unregister and then re-register the existing driver DLL.
The error clearly indicates that the 32-bit application is trying to use an ODBC driver that does not match its CPU architecture. On a 64-bit edition of Windows there are two separate ODBC administrators: the default tool in %SystemRoot%\System32 manages 64-bit drivers, while %SystemRoot%\SysWOW64\odbcad32.exe manages 32-bit drivers and DSNs. Re-creating the DSN with the 32-bit ODBC Data Source Administrator and selecting a 32-bit version of the MySQL (or other) driver gives the application a driver whose architecture matches its own, eliminating the IM014 mismatch.
The other options do not address architecture: registering the DLL with regsvr32 only affects COM components, expanding virtual memory does not influence driver loading, and opening a firewall port would not fix a local architecture conflict.