> It is "as designed" - you cannot overwrite a backup file; or,
> rather, you cannot output a backup to a file that already exists in
> the target location with the same name. Think for a moment about the
> implications if it was allowed...

Huh?
That's completely new to me that I cannot overwrite an existing backupfile.
I've been doing that for years as well as my customers do.
What have I missed?

Luc.