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diff --git a/engines/wintermute/system/sys_class_registry.h b/engines/wintermute/system/sys_class_registry.h
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+++ b/engines/wintermute/system/sys_class_registry.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+/*
+ * This file is based on WME Lite.
+ * http://dead-code.org/redir.php?target=wmelite
+ * Copyright (c) 2011 Jan Nedoma
+ */
+
+#ifndef WINTERMUTE_SYSCLASSREGISTRY_H
+#define WINTERMUTE_SYSCLASSREGISTRY_H
+
+#include "engines/wintermute/wintypes.h"
+#include "engines/wintermute/dctypes.h"
+#include "engines/wintermute/persistent.h"
+#include "engines/wintermute/system/sys_class.h"
+#include "common/hashmap.h"
+#include "common/hash-str.h"
+#include "common/func.h"
+#include "common/stream.h"
+
+namespace WinterMute {
+class CSysClass;
+}
+
+namespace Common {
+template<typename T> struct Hash;
+template<> struct Hash<WinterMute::CSysClass *> : public UnaryFunction<WinterMute::CSysClass *, uint> {
+	uint operator()(WinterMute::CSysClass *val) const {
+		return (uint)((size_t)val);
+	}
+};
+
+}
+
+namespace WinterMute {
+
+class CBGame;
+class CBPersistMgr;
+class CSysInstance;
+
+class CSysClassRegistry {
+	void unregisterClasses();
+public:
+	void registerClasses(); // persistent.cpp
+	static CSysClassRegistry *getInstance();
+
+	CSysClassRegistry();
+	virtual ~CSysClassRegistry();
+
+	bool enumInstances(SYS_INSTANCE_CALLBACK lpCallback, const char *className, void *lpData);
+	bool loadTable(CBGame *Game, CBPersistMgr *PersistMgr);
+	bool saveTable(CBGame *Game, CBPersistMgr *PersistMgr, bool quickSave);
+	bool loadInstances(CBGame *Game, CBPersistMgr *PersistMgr);
+	bool saveInstances(CBGame *Game, CBPersistMgr *PersistMgr, bool quickSave);
+	void *idToPointer(int classID, int instanceID);
+	bool getPointerID(void *pointer, int *classID, int *instanceID);
+	bool registerClass(CSysClass *classObj);
+	bool unregisterClass(CSysClass *classObj);
+	bool registerInstance(const char *className, void *instance);
+	bool unregisterInstance(const char *className, void *instance);
+	void dumpClasses(Common::WriteStream *stream);
+	int getNextID();
+	void addInstanceToTable(CSysInstance *instance, void *pointer);
+
+	bool _disabled;
+	int _count;
+
+	typedef Common::HashMap<CSysClass *, CSysClass *> Classes;
+	Classes _classes;
+
+	typedef Common::HashMap<AnsiString, CSysClass *> NameMap;
+	NameMap _nameMap;
+
+	typedef Common::HashMap<int, CSysClass *> IdMap;
+	IdMap _idMap;
+
+	typedef Common::HashMap<void *, CSysInstance *> InstanceMap;
+	InstanceMap _instanceMap;
+
+	typedef Common::HashMap<int, CSysInstance *> SavedInstanceMap;
+	SavedInstanceMap _savedInstanceMap;
+
+};
+
+} // end of namespace WinterMute
+
+#endif