Description:

EFS is a system for transparent file-transfer between remote VMS, CMS,
MTS, MVS, Twenex, Explorer (the last two are Lisp machines), TOPS-20,
DOS (running the Distinct, Novell, FTP software, NCSA, Microsoft in
both unix and DOS mode, Super TCP, and Hellsoft FTP servers), Windows
NT (running the Microsoft or Hummingbird ftp servers), Unix
descriptive listings (dl), KA9Q, OS/2 hosts using FTP. This means that
you can edit, copy and otherwise manipulate files on any machine you
have access to from within Emacs as if it were a local file. EFS works
by introducing an extended filename syntax, and overloading functions
such as `insert-file-contents' so that accessing a remote file causes
appropriate commands to be sent to an FTP process. EFS includes and
enhanced version of Dired to facilitate directory browsing and
multiple file transfer from remote hosts.