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diff --git a/linden/indra/newview/llcommandhandler.cpp b/linden/indra/newview/llcommandhandler.cpp
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+++ b/linden/indra/newview/llcommandhandler.cpp
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+/**
+ * @file llcommandhandler.cpp
+ * @brief Central registry for text-driven "commands", most of
+ * which manipulate user interface.  For example, the command
+ * "agent (uuid) about" will open the UI for an avatar's profile.
+ *
+ * $LicenseInfo:firstyear=2007&license=viewergpl$
+ * 
+ * Copyright (c) 2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+#include "llviewerprecompiledheaders.h"
+
+#include "llcommandhandler.h"
+
+// system includes
+#include <boost/tokenizer.hpp>
+
+//---------------------------------------------------------------------------
+// Underlying registry for command handlers, not directly accessible.
+//---------------------------------------------------------------------------
+
+class LLCommandHandlerRegistry
+{
+public:
+        static LLCommandHandlerRegistry& instance();
+        void add(const char* cmd, LLCommandHandler* handler);
+        bool dispatch(const std::string& cmd, const std::vector<std::string>& params);
+
+private:
+        std::map<std::string, LLCommandHandler*> mMap;
+};
+
+// static 
+LLCommandHandlerRegistry& LLCommandHandlerRegistry::instance()
+{
+        // Force this to be initialized on first call, because we're going
+        // to be adding items to the std::map before main() and we can't
+        // rely on a global being initialized in the right order.
+        static LLCommandHandlerRegistry instance;
+        return instance;
+}
+
+void LLCommandHandlerRegistry::add(const char* cmd, LLCommandHandler* handler)
+{
+        mMap[cmd] = handler;
+}
+
+bool LLCommandHandlerRegistry::dispatch(const std::string& cmd,
+                                                                                const std::vector<std::string>& params)
+{
+        std::map<std::string, LLCommandHandler*>::iterator it = mMap.find(cmd);
+        if (it == mMap.end()) return false;
+        LLCommandHandler* handler = it->second;
+        if (!handler) return false;
+        return handler->handle(params);
+}
+
+//---------------------------------------------------------------------------
+// Automatic registration of commands, runs before main()
+//---------------------------------------------------------------------------
+
+LLCommandHandler::LLCommandHandler(const char* cmd)
+{
+        LLCommandHandlerRegistry::instance().add(cmd, this);
+}
+
+LLCommandHandler::~LLCommandHandler()
+{
+        // Don't care about unregistering these, all the handlers
+        // should be static objects.
+}
+
+//---------------------------------------------------------------------------
+// Public interface
+//---------------------------------------------------------------------------
+
+// static
+bool LLCommandDispatcher::dispatch(const std::string& cmd, const std::vector<std::string>& params)
+{
+        return LLCommandHandlerRegistry::instance().dispatch(cmd, params);
+}