Merge from emacs--devo--0

Patches applied:

 * emacs--devo--0  (patch 803-813)

   - Update from CVS
   - Merge from emacs--rel--22

 * emacs--rel--22  (patch 51-58)

   - Update from CVS
   - Merge from gnus--rel--5.10

 * gnus--rel--5.10  (patch 233-236)

   - Merge from emacs--devo--0
   - Update from CVS

Revision: emacs@sv.gnu.org/emacs--multi-tty--0--patch-25

1 files changed, 12 insertions, 0 deletions

diff --git a/src/w32fns.c b/src/w32fns.c
index e76ca2ddc62..cacfa32c177 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -52,6 +52,7 @@ Boston, MA 02110-1301, USA.  */
 #include <shellapi.h>
 #include <ctype.h>
 #include <winspool.h>
+#include <objbase.h>
 
 #include <dlgs.h>
 #define FILE_NAME_TEXT_FIELD edt1
@@ -2512,6 +2513,13 @@ w32_msg_pump (deferred_msg * msg_buf)
 	      /* Produced by complete_deferred_msg; just ignore.  */
 	      break;
 	    case WM_EMACS_CREATEWINDOW:
+              /* Initialize COM for this window. Even though we don't use it,
+                 some third party shell extensions can cause it to be used in
+                 system dialogs, which causes a crash if it is not initialized.
+                 This is a known bug in Windows, which was fixed long ago, but
+                 the patch for XP is not publically available until XP SP3,
+                 and older versions will never be patched.  */
+              CoInitialize (NULL);
 	      w32_createwindow ((struct frame *) msg.wParam);
 	      if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
 		abort ();
@@ -3658,6 +3666,10 @@ w32_wnd_proc (hwnd, msg, wParam, lParam)
       my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
       goto dflt;
 
+    case WM_DESTROY:
+      CoUninitialize ();
+      return 0;
+
     case WM_CLOSE:
       wmsg.dwModifiers = w32_get_modifiers ();
       my_post_msg (&wmsg, hwnd, msg, wParam, lParam);