Problems with mswindows-shell-execute

Hi I'm using o XEmacs 21.2 (beta41) "Polyhymnia" [Lucid] (i686-pc-cygwin, Mule) of Wed Jan 17 2001 on VZELL My cygwin mount table: Device Directory Type Flags D:\bin /usr/bin system binmode D:\lib /usr/lib system binmode C: /dev/c system binmode D: / system binmode Please take a look at the following lisp expressions: (mswindows-shell-execute nil "/tmp/inst_notes_ias102.html") This works (mswindows-shell-execute nil "/dev/c/tmp/FAQ.html") This works (mswindows-shell-execute nil "file///tmp//inst_notes_ias102.html") file not found: "file///tmp//inst_notes_ias102.html" (X) (mswindows-shell-execute nil "file//D:/tmp//inst_notes_ias102.html") file not found: "file//D:/tmp//inst_notes_ias102.html" (mswindows-shell-execute nil "file///D|/tmp//inst_notes_ias102.html") file not found: "file///D|/tmp//inst_notes_ias102.html" (mswindows-shell-execute nil "http://vzell/") file not found: "http://vzell/" Are the file:// and http:// type URL's supposed to work ? I'm asking because lots of lisp code uses code like the following. This is from jde: (browse-url (concat "file://" (jde-convert-cygwin-path jde-help)) In my case I try to use in browse-url, browse-url-default-windows-browser for it's browse-url-browser-function. So I end up with URL's of type (X), but this gives the error above. Any hints ? Ciao Volker