I'm looking for a software package that runs as a service and backs up all file changed since the last backup on a schedule, a Differential backup,
it should create a file structure like windows,
it should use an interface to set up the backup,
I also don't want deletions from the source deleted from the target disk.
I currently use PT replicator to do this but it does not run as a service, I've tried Cobian but it creates separate files for each back. I'm not interested in an image backup and we currently have an internet backup. This backup would be in addition to the internet backup.