Your bug report

#23186: 25.0.92; Tramp: Windows does not always set COMSPEC, tramp blows up in a string-match

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 23186@debbugs.gnu.org.

-- 
23186: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=23186
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems