MS-Windows and MS-DOS normally use a backslash, ‘\’, to separate name units within a file name, instead of the slash used on other systems. Emacs on MS-DOS/MS-Windows permits use of either slash or backslash, and also knows about drive letters in file names.
On MS-DOS/MS-Windows, file names are case-insensitive, so Emacs by default ignores letter-case in file names during completion.
w32-get-true-file-attributes controls whether
Emacs should issue additional system calls to determine more
accurately file attributes in primitives like
directory-files-and-attributes. These additional calls are
needed to report correct file ownership, link counts and file types
for special files such as pipes. Without these system calls, file
ownership will be attributed to the current user, link counts will be
always reported as 1, and special files will be reported as regular
If the value of this variable is
local (the default), Emacs
will issue these additional system calls only for files on local fixed
drives. Any other non-
nil value means do this even for
removable and remote volumes, where this could potentially slow down
Dired and other related features. The value of
nil means never
issue those system calls. Non-
nil values are more useful on
NTFS volumes, which support hard links and file security, than on FAT,
FAT32, and XFAT volumes.