diff --git a/base/shell/explorer/appbar.cpp b/base/shell/explorer/appbar.cpp
index f3a3e880692..3f980ec589f 100644
--- a/base/shell/explorer/appbar.cpp
+++ b/base/shell/explorer/appbar.cpp
@@ -75,17 +75,26 @@ static struct appbar_data* get_appbar(HWND hwnd)
     return NULL;
 }
 
+void appbar_notify_all(HMONITOR hMon, UINT uMsg, HWND hwndExclude, LPARAM lParam)
+{
+    struct appbar_data* data;
+
+    LIST_FOR_EACH_ENTRY(data, &appbars, struct appbar_data, entry)
+    {
+        if (data->hwnd == hwndExclude)
+            continue;
+
+        if (hMon && hMon != MonitorFromWindow(data->hwnd, MONITOR_DEFAULTTONULL))
+            continue;
+
+        SendMessageW(data->hwnd, data->callback_msg, uMsg, lParam);
+    }
+}
+
 /* send_poschanged: send ABN_POSCHANGED to every appbar except one */
 static void send_poschanged(HWND hwnd)
 {
-    struct appbar_data* data;
-    LIST_FOR_EACH_ENTRY(data, &appbars, struct appbar_data, entry)
-    {
-        if (data->hwnd != hwnd)
-        {
-            PostMessageW(data->hwnd, data->callback_msg, ABN_POSCHANGED, 0);
-        }
-    }
+    appbar_notify_all(NULL, ABN_POSCHANGED, hwnd, 0);
 }
 
 /* appbar_cliprect: cut out parts of the rectangle that interfere with existing appbars */
diff --git a/base/shell/explorer/traywnd.cpp b/base/shell/explorer/traywnd.cpp
index 2e081329d19..8dd491b0678 100644
--- a/base/shell/explorer/traywnd.cpp
+++ b/base/shell/explorer/traywnd.cpp
@@ -24,6 +24,7 @@
 
 HRESULT TrayWindowCtxMenuCreator(ITrayWindow * TrayWnd, IN HWND hWndOwner, IContextMenu ** ppCtxMenu);
 LRESULT appbar_message(COPYDATASTRUCT* cds);
+void appbar_notify_all(HMONITOR hMon, UINT uMsg, HWND hwndExclude, LPARAM lParam);
 
 #define WM_APP_TRAYDESTROY  (WM_APP + 0x100)
 
@@ -608,15 +609,21 @@ public:
             break;
 
         case ID_SHELL_CMD_TILE_WND_H:
+            appbar_notify_all(NULL, ABN_WINDOWARRANGE, NULL, TRUE);
             TileWindows(NULL, MDITILE_HORIZONTAL, NULL, 0, NULL);
+            appbar_notify_all(NULL, ABN_WINDOWARRANGE, NULL, FALSE);
             break;
 
         case ID_SHELL_CMD_TILE_WND_V:
+            appbar_notify_all(NULL, ABN_WINDOWARRANGE, NULL, TRUE);
             TileWindows(NULL, MDITILE_VERTICAL, NULL, 0, NULL);
+            appbar_notify_all(NULL, ABN_WINDOWARRANGE, NULL, FALSE);
             break;
 
         case ID_SHELL_CMD_CASCADE_WND:
+            appbar_notify_all(NULL, ABN_WINDOWARRANGE, NULL, TRUE);
             CascadeWindows(NULL, MDITILE_SKIPDISABLED, NULL, 0, NULL);
+            appbar_notify_all(NULL, ABN_WINDOWARRANGE, NULL, FALSE);
             break;
 
         case ID_SHELL_CMD_CUST_NOTIF: