diff --git a/win/rfb_win32/WMNotifier.cxx b/win/rfb_win32/WMNotifier.cxx
new file mode 100644
index 0000000..20a5445
--- /dev/null
+++ b/win/rfb_win32/WMNotifier.cxx
@@ -0,0 +1,57 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+// -=- WMNotifier.cxx
+
+#include <rfb_win32/WMNotifier.h>
+#include <rfb_win32/WMShatter.h>
+#include <rfb_win32/MsgWindow.h>
+
+#include <rfb/LogWriter.h>
+
+using namespace rfb;
+using namespace rfb::win32;
+
+static LogWriter vlog("WMMonitor");
+
+
+WMMonitor::WMMonitor() : MsgWindow(_T("WMMonitor")), notifier(0) {
+}
+
+WMMonitor::~WMMonitor() {
+}
+
+
+LRESULT
+WMMonitor::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
+  switch (msg) {
+  case WM_DISPLAYCHANGE:
+    if (notifier) {
+      notifier->notifyDisplayEvent(Notifier::DisplaySizeChanged);
+      notifier->notifyDisplayEvent(Notifier::DisplayPixelFormatChanged);
+    }
+    break;
+	case WM_SYSCOLORCHANGE:
+  case WM_PALETTECHANGED:
+    if (notifier) {
+      notifier->notifyDisplayEvent(Notifier::DisplayColourMapChanged);
+    }
+    break;
+  };
+  return MsgWindow::processMessage(msg, wParam, lParam);
+}