> The weirdest part is the HPFS compatibility mode (file.ext:substream).
HPFS had extended attributes, but not substreams. You are thinking about HFS; substreams were added to NTFS to support storing resource forks on network shares used by Macs.
HPFS had extended attributes, but not substreams. You are thinking about HFS; substreams were added to NTFS to support storing resource forks on network shares used by Macs.