This option sets the file transfer root directory for files to be uploaded with the mlfiletransfer utility. Files can only
be uploaded into this root directory or immediate sub-directories of the root directory.
Files can only be uploaded if the authenticate_file_upload script does not exist or if the script exists and returns an authentication_code
in the range 1000-1999. This requirement is for mlfiletransfer only and does not apply to the MobiLink Agent.
This option is required if you want to use the mlfiletransfer utility to upload files.