diff --git a/vncviewer/UserPasswdDialog.h b/vncviewer/UserPasswdDialog.h
new file mode 100644
index 0000000..998a49f
--- /dev/null
+++ b/vncviewer/UserPasswdDialog.h
@@ -0,0 +1,54 @@
+/* Copyright (C) 2002-2004 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.
+ */
+
+// -=- UserPasswdDialog.h
+
+// Username and password dialog for VNC Viewer 4.0
+
+#ifndef __RFB_WIN32_USERPASSWD_DIALOG_H__
+#define __RFB_WIN32_USERPASSWD_DIALOG_H__
+
+#include <rfb_win32/Dialog.h>
+#include <rfb_win32/TCharArray.h>
+#include <rfb/CSecurity.h>
+#include <rfb/UserPasswdGetter.h>
+
+namespace rfb {
+
+  namespace win32 {
+
+    class UserPasswdDialog : Dialog, public UserPasswdGetter {
+    public:
+      UserPasswdDialog();
+      virtual bool showDialog();
+      virtual void initDialog();
+      virtual bool onOk();
+      virtual bool getUserPasswd(char** user, char** passwd);
+      void setCSecurity(const CSecurity* cs);
+    protected:
+      TCharArray username;
+      TCharArray password;
+      bool showUsername;
+      TCharArray description;
+    };
+
+  };
+
+};
+
+#endif