Using Org-mode version 7.8.09 (release_7.8.09-553-g5750f0) (and earlier versions) I've encountered a problem on my Windows machine when I try to export an Org file to LaTeX, then to Pdf, then viewing (using C-c C-e d).
In my init.el I have the lines (eval-after-load "org" '(progn (if (assoc "\\.pdf\\'" org-file-apps) (setcdr (assoc "\\.pdf\\'" org-file-apps) "c:/progra~1/sumatrapdf/sumatrapdf.exe %s") (add-to-list 'org-file-apps '("\\.pdf\\'" . "c:/progra~1/sumatrapdf/sumatrapdf.exe %s") t)))) ) This results in: org-file-apps is a variable defined in `org.el'. Its value is ((auto-mode . emacs) ("\\.mm\\'" . default) ("\\.x?html?\\'" . default) ("\\.pdf\\'" . "c:/progra~1/sumatrapdf/sumatrapdf.exe %s")) When I try to export an org file by typing C-c C-e d, sumatrapdf opens up OK, but complains with an error like this: Error loading c:\dropbox\org\c\:\dropbox\org\personal.pdf Any idea why I get the repeated path? A similar constructions works fine on my Mac, so I'm not quite sure what's going wrong here.