[lproven]

My favourite sobriquet for MS has long been the DOS view of an Office 97 installation in the filesystem:

MICROS~1

(Long name, Microsoft Office.)

So if you create files called MICROS~2 - MICROS~0 in theory you can create enough abbreviated names that there are not available short names for long filenames you wish to create. Every LFN must have a "real" 8.3 counterpart.