Download Microsoft Jet Oledb 4.0 |verified| Jun 2026

reg query "HKEY_CLASSES_ROOT\CLSID\DEe35070-506B-11CF-B1AA-00AA00B8DE95" /s

This allows the 64-bit IIS process to launch a 32-bit worker process that does have access to Jet 4.0 (since the driver exists in the SYSWOW64 folder). download microsoft jet oledb 4.0