The information about the driver execution mode that a Strategy Intelligence Server is currently using to run against the metadata is stored in the registry of the Strategy Intelligence Server machine.
It is located at:
HKEY_LOCAL_MACHINE\SOFTWARE\MicroStrategy\Data Sources\CastorServer
The key is called 'Flags'
NOTES:
WARNING:
Modifying registry values incorrectly may cause serious, system-wide problems that may require the re-installation of Microsoft Windows NT. Any edit of the registry is done at the user's own risk. Since these are user-initiated changes, they are not covered by any Strategy warranty. If using Microsoft Windows NT, the user should backup the registry and/or update an Emergency Repair Disk (ERD) prior to alterations.