diff --git a/win/vncviewer/ConnectingDialog.h b/win/vncviewer/ConnectingDialog.h
new file mode 100644
index 0000000..c38b3a1
--- /dev/null
+++ b/win/vncviewer/ConnectingDialog.h
@@ -0,0 +1,65 @@
+/* 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.
+ */
+
+// -=- ConnectingDialog.h
+
+// ConnectingDialog instances are used to display a status dialog while a
+// connection attempt is in progress.  The connection attempt is performed
+// in a background thread by the ConnectingDialog, to allow the status dialog
+// to remain interactive.  If the dialog is cancelled then it will close and
+// the connection dialog will eventually tidy itself up.
+
+#ifndef __RFB_WIN32_CONNECTING_DLG_H__
+#define __RFB_WIN32_CONNECTING_DLG_H__
+
+#include <windows.h>
+#include <network/Socket.h>
+#include <rfb/util.h>
+#include <rfb_win32/Handle.h>
+
+namespace rfb {
+
+  namespace win32 {
+
+    class ConnectingDialog {
+    public:
+      ConnectingDialog();
+
+      // connect
+      //   Show a Connecting dialog and attempt to connect to the specified host
+      //   in the background.
+      //   If the connection succeeds then the Socket is returned.
+      //   If an error occurs, an Exception is thrown.
+      //   If the dialog is cancelled then null is returned.
+      network::Socket* connect(const char* hostAndPort);
+    protected:
+      HWND dialog;
+      network::Socket* newSocket;
+      CharArray errMsg;
+      Handle readyEvent;
+      int dialogId;
+
+      class Thread;
+      friend class Thread;
+    };
+
+  };
+
+};
+
+#endif