Handling file links under Windows

[Leo Alekseyev <dnquark@gmail.com>]

Dear All,
I would like to have links to PDF files open those files in Acrobat
and links to Windows Journal (JNT) files open them in Windows Journal
-- very simple; same as it would be as if I double-clicked them
anywhere in Windows.

Here is what happens now: PDF files open in emacs doc-view mode, and
JNT files fail to open with the message "ShellExecute failed:
Application not found^M" (sic).

If I try to explicitly set the variable org-file-apps, so that its
value is (("\\.jnt\\'" . "C:\\Program Files\\Windows
Journal\\Journal.exe %s")
 ("\\.pdf\\'" . "C:\\Program Files (x86)\\Adobe\\Acrobat
10.0\\Acrobat\\Acrobat.exe %s")
 (auto-mode . emacs)
 ("\\.x?html?\\'" . default))

-- but in this case, opening those links silently fails (even though I
can type e.g.  "C:\Program Files\Windows Journal\Journal.exe foo.jnt"
from Windows command line and it works fine).

Can anyone help with getting this to work right?..  Links are rather
fundamental to org-mode and it's annoying not to have them working
right.

--Leo