OK. a Multisource worlflow would use the Data Federation adaptive processing server . make sure that is up and running
for a single source workflow, the connection server uses the files at
under \dataAccess\connectionserver\drivers
for the multisource workflow, it will use the drivers under \dataAccess\connectionServer\jdbc\drivers\datafederator
Not forgetting that in both cases the .SBO files will need to be modified.
Regards,
H