Fix Bug#23614.

* lisp/net/tramp-sh.el (tramp-maybe-open-connection):
Let-bind `process-coding-system-alist' in order to suppress
the value for "cmdproxy".

* lisp/net/tramp.el (tramp-encoding-shell):
`w32-shell-name' is a function.
(tramp-encoding-command-switch)
(tramp-encoding-command-interactive): Use `w32-shell-dos-semantics'.

* test/lisp/net/tramp-tests.el (tramp-test24-file-name-completion):
Suppress some tests on MS Windows.  (Bug#23614)

1 files changed, 4 insertions, 2 deletions

diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index 6553421c5bc..468ed4a36ff 100644
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -1380,8 +1380,10 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
 
       (unwind-protect
           (progn
-            ;; Method and host name in completion mode.
-            (when (tramp-completion-mode-p)
+            ;; Method and host name in completion mode.  This kind of
+            ;; completion does not work on MS Windows.
+            (when (and (tramp-completion-mode-p)
+                       (not (memq system-type '(cygwin windows-nt))))
               (unless (zerop (length method))
                 (should
                  (member