Win32: fix file opening from context menu

Also when double-clicking.
This fixes #3604
(cherry picked from commit fe0bf180e4ea6412d5cd07b613605daf8eca1971)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

src/win32/specific.c

 /*****************************************************************************
  * specific.c: Win32 specific initilization
  *****************************************************************************
- * Copyright (C) 2001-2004 the VideoLAN team
+ * Copyright (C) 2001-2004, 2010 the VideoLAN team
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *          Gildas Bazin <gbazin@videolan.org>
@@ -29,6 +29,7 @@
 #include <vlc_common.h>
 #include "../libvlc.h"
 #include <vlc_playlist.h>
+#include <vlc_url.h>
 
 #include "../config/vlc_getopt.h"
 
@@ -348,7 +349,7 @@ LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
                 {
                     i_options++;
                 }
-                playlist_AddExt( p_playlist, ppsz_argv[i_opt],
+                playlist_AddExt( p_playlist, make_URI( ppsz_argv[i_opt] ),
                         NULL, PLAYLIST_APPEND |
                         ( ( i_opt || p_data->enqueue ) ? 0 : PLAYLIST_GO ),
                         PLAYLIST_END, -1,