ange-ftp doesn't work after unloading tramp

[Gilles Pion]

(maybe I'm doing wrong)

after having executed: (tramp-unload-tramp), (find-file "/address@hidden:") 
signals
error:
Debugger entered--Lisp error: (void-function ange-ftp-run-real-handler)
  signal(void-function (ange-ftp-run-real-handler))
  byte-code("address@hidden"\207" [err signal] 3)
  ange-ftp-hook-function(expand-file-name "/address@hidden:" nil)
  expand-file-name("/address@hidden:")
  find-file-noselect("/address@hidden:" nil nil nil)
  find-file("/address@hidden:")
  eval-region(213 242 t (lambda (ignore) (goto-char 242) (quote (find-file
"/address@hidden:"))))  ; Reading at buffer position 231
  apply(eval-region (213 242 t (lambda (ignore) (goto-char 242) (quote
(find-file "/address@hidden:")))))
  eval-defun-2()
  eval-defun(nil)
  call-interactively(eval-defun nil nil)

(describe-function 'ange-ftp-run-real-handler) gives:

ange-ftp-run-real-handler is an alias for `tramp-run-real-handler',
which is not defined.  Please make a bug report.

Tramp-version: 2.2.6-24.3
GNU Emacs 24.3.1 (i686-pc-cygwin) 
-- 
Gilles Pion