@WayneSchulz it certainly sounds like a security access rights issue. I would check two things at the security level: 1) Who has what rights at the directory level and 2) who has rights at the share level. Next, you need to know under what context you are attempting to access the file (providex.ddf). Is it your user id or is it the account that SQL or some other service is running under. Both need access to the directory. If this case, it appears they need the ability to update the file which means read / write / delete. My money is on a service account.