[nxobject]

NTFS on non-Windows systems aside, I wonder whether there are any "pure NT" environments you can access in Windows where you can create and use these folders.

[tenebrisalietum]

You can do some stuff under Cygwin that's bothersome under explorer.exe, like delete files with really long pathnames.

[bombcar]

You just need to come in below whatever layer notices them. I'm sure they've been used to smuggle viruses in, so the layer that blocks them may get lower and lower.