diff --git a/Util/include/Poco/Util/AbstractConfiguration.h b/Util/include/Poco/Util/AbstractConfiguration.h
index 4bbfbc187..6085219cb 100644
--- a/Util/include/Poco/Util/AbstractConfiguration.h
+++ b/Util/include/Poco/Util/AbstractConfiguration.h
@@ -54,9 +54,9 @@ public:
 		/// A key-value pair, used as event argument.
 	{
 	public:
-		KeyValue(const std::string& key, std::string& value):
-			_key(key),
-			_value(value)
+		KeyValue(const std::string& rKey, std::string& rValue):
+			_key(rKey),
+			_value(rValue)
 		{
 		}
 		
diff --git a/Util/include/Poco/Util/Application.h b/Util/include/Poco/Util/Application.h
index 596b01ac2..36e164e8a 100644
--- a/Util/include/Poco/Util/Application.h
+++ b/Util/include/Poco/Util/Application.h
@@ -471,9 +471,9 @@ inline const Poco::Timestamp& Application::startTime() const
 inline Poco::Timespan Application::uptime() const
 {
 	Poco::Timestamp now;
-	Poco::Timespan uptime = now - _startTime;
+	Poco::Timespan ret = now - _startTime;
 
-	return uptime;
+	return ret;
 }
 
 
diff --git a/Util/src/AbstractConfiguration.cpp b/Util/src/AbstractConfiguration.cpp
index d9981ead2..5f8ab3016 100644
--- a/Util/src/AbstractConfiguration.cpp
+++ b/Util/src/AbstractConfiguration.cpp
@@ -423,11 +423,11 @@ std::string AbstractConfiguration::internalExpand(const std::string& value) cons
 }
 
 
-std::string AbstractConfiguration::uncheckedExpand(const std::string& value) const
+std::string AbstractConfiguration::uncheckedExpand(const std::string& rValue) const
 {
 	std::string result;
-	std::string::const_iterator it  = value.begin();
-	std::string::const_iterator end = value.end();
+	std::string::const_iterator it  = rValue.begin();
+	std::string::const_iterator end = rValue.end();
 	while (it != end)
 	{
 		if (*it == '$')
diff --git a/Util/src/Application.cpp b/Util/src/Application.cpp
index 731c84da8..96d79aaf6 100644
--- a/Util/src/Application.cpp
+++ b/Util/src/Application.cpp
@@ -78,7 +78,7 @@ Application::Application():
 }
 
 
-Application::Application(int argc, char* argv[]):
+Application::Application(int argc, char* pArgv[]):
 	_pConfig(new LayeredConfiguration),
 	_initialized(false),
 	_unixOptions(true),
@@ -87,7 +87,7 @@ Application::Application(int argc, char* argv[]):
 	_loadedConfigs(0)
 {
 	setup();
-	init(argc, argv);
+	init(argc, pArgv);
 }
 
 
@@ -131,9 +131,9 @@ void Application::addSubsystem(Subsystem* pSubsystem)
 }
 
 
-void Application::init(int argc, char* argv[])
+void Application::init(int argc, char* pArgv[])
 {
-	setArgs(argc, argv);
+	setArgs(argc, pArgv);
 	init();
 }
 
@@ -363,15 +363,15 @@ int Application::main(const ArgVec& args)
 }
 
 
-void Application::setArgs(int argc, char* argv[])
+void Application::setArgs(int argc, char* pArgv[])
 {
-	_command = argv[0];
+	_command = pArgv[0];
 	_pConfig->setInt("application.argc", argc);
 	_unprocessedArgs.reserve(argc);
 	std::string argvKey = "application.argv[";
 	for (int i = 0; i < argc; ++i)
 	{
-		std::string arg(argv[i]);
+		std::string arg(pArgv[i]);
 		_pConfig->setString(argvKey + NumberFormatter::format(i) + "]", arg);
 		_unprocessedArgs.push_back(arg);
 	}
@@ -403,13 +403,13 @@ void Application::processOptions()
 	ArgVec::iterator it = _unprocessedArgs.begin();
 	while (it != _unprocessedArgs.end() && !_stopOptionsProcessing)
 	{
-		std::string name;
+		std::string argName;
 		std::string value;
-		if (processor.process(*it, name, value))
+		if (processor.process(*it, argName, value))
 		{
-			if (!name.empty()) // "--" option to end options processing or deferred argument
+			if (!argName.empty()) // "--" option to end options processing or deferred argument
 			{
-				handleOption(name, value);
+				handleOption(argName, value);
 			}
 			it = _unprocessedArgs.erase(it);
 		}
@@ -536,18 +536,18 @@ bool Application::findAppConfigFile(const Path& basePath, const std::string& app
 }
 
 
-void Application::defineOptions(OptionSet& options)
+void Application::defineOptions(OptionSet& rOptions)
 {
 	for (SubsystemVec::iterator it = _subsystems.begin(); it != _subsystems.end(); ++it)
 	{
-		(*it)->defineOptions(options);
+		(*it)->defineOptions(rOptions);
 	}
 }
 
 
-void Application::handleOption(const std::string& name, const std::string& value)
+void Application::handleOption(const std::string& rName, const std::string& value)
 {
-	const Option& option = _options.getOption(name);
+	const Option& option = _options.getOption(rName);
 	if (option.validator())
 	{
 		option.validator()->validate(option, value);
@@ -560,14 +560,14 @@ void Application::handleOption(const std::string& name, const std::string& value
 	}
 	if (option.callback())
 	{
-		option.callback()->invoke(name, value);
+		option.callback()->invoke(rName, value);
 	}
 }
 
 
-void Application::setLogger(Logger& logger)
+void Application::setLogger(Logger& rLogger)
 {
-	_pLogger = &logger;
+	_pLogger = &rLogger;
 }
 
 
diff --git a/Util/src/IniFileConfiguration.cpp b/Util/src/IniFileConfiguration.cpp
index 45d371492..3ce411c22 100644
--- a/Util/src/IniFileConfiguration.cpp
+++ b/Util/src/IniFileConfiguration.cpp
@@ -100,7 +100,7 @@ void IniFileConfiguration::setRaw(const std::string& key, const std::string& val
 
 void IniFileConfiguration::enumerate(const std::string& key, Keys& range) const
 {
-	std::set<std::string> keys;
+	std::set<std::string> keySet;
 	std::string prefix = key;
 	if (!prefix.empty()) prefix += '.';
 	std::string::size_type psize = prefix.size();
@@ -114,10 +114,10 @@ void IniFileConfiguration::enumerate(const std::string& key, Keys& range) const
 				subKey = it->first.substr(psize);
 			else
 				subKey = it->first.substr(psize, end - psize);
-			if (keys.find(subKey) == keys.end())
+			if (keySet.find(subKey) == keySet.end())
 			{
 				range.push_back(subKey);
-				keys.insert(subKey);
+				keySet.insert(subKey);
 			}
 		}
 	}
@@ -189,4 +189,4 @@ void IniFileConfiguration::parseLine(std::istream& istr)
 } } // namespace Poco::Util
 
 
-#endif // POCO_UTIL_NO_INIFILECONFIGURATION
\ No newline at end of file
+#endif // POCO_UTIL_NO_INIFILECONFIGURATION
diff --git a/Util/src/JSONConfiguration.cpp b/Util/src/JSONConfiguration.cpp
index 2cb912077..d75a0c47b 100644
--- a/Util/src/JSONConfiguration.cpp
+++ b/Util/src/JSONConfiguration.cpp
@@ -167,7 +167,7 @@ JSON::Object::Ptr JSONConfiguration::findStart(const std::string& key, std::stri
 						parentArray->add(newArray);
 					}
 
-					for(int i = 0; i <= *it - 1; ++i)
+					for(int j = 0; j <= *it - 1; ++j)
 					{
 						Poco::DynamicAny nullValue;
 						newArray->add(nullValue);
diff --git a/Util/src/LayeredConfiguration.cpp b/Util/src/LayeredConfiguration.cpp
index 14bbeea1e..959cc237c 100644
--- a/Util/src/LayeredConfiguration.cpp
+++ b/Util/src/LayeredConfiguration.cpp
@@ -140,17 +140,17 @@ void LayeredConfiguration::setRaw(const std::string& key, const std::string& val
 
 void LayeredConfiguration::enumerate(const std::string& key, Keys& range) const
 {
-	std::set<std::string> keys;
+	std::set<std::string> keySet;
 	for (ConfigList::const_iterator itc = _configs.begin(); itc != _configs.end(); ++itc)
 	{
 		Keys partRange;
 		itc->pConfig->enumerate(key, partRange);
 		for (Keys::const_iterator itr = partRange.begin(); itr != partRange.end(); ++itr)
 		{
-			if (keys.find(*itr) == keys.end())
+			if (keySet.find(*itr) == keySet.end())
 			{
 				range.push_back(*itr);
-				keys.insert(*itr);
+				keySet.insert(*itr);
 			}
 		}
 	}
diff --git a/Util/src/MapConfiguration.cpp b/Util/src/MapConfiguration.cpp
index a5ef5dade..53140f271 100644
--- a/Util/src/MapConfiguration.cpp
+++ b/Util/src/MapConfiguration.cpp
@@ -58,7 +58,7 @@ void MapConfiguration::setRaw(const std::string& key, const std::string& value)
 
 void MapConfiguration::enumerate(const std::string& key, Keys& range) const
 {
-	std::set<std::string> keys;
+	std::set<std::string> keySet;
 	std::string prefix = key;
 	if (!prefix.empty()) prefix += '.';
 	std::string::size_type psize = prefix.size();
@@ -67,15 +67,15 @@ void MapConfiguration::enumerate(const std::string& key, Keys& range) const
 		if (it->first.compare(0, psize, prefix) == 0)
 		{
 			std::string subKey;
-			std::string::size_type end = it->first.find('.', psize);
-			if (end == std::string::npos)
+			std::string::size_type pos = it->first.find('.', psize);
+			if (pos == std::string::npos)
 				subKey = it->first.substr(psize);
 			else
-				subKey = it->first.substr(psize, end - psize);
-			if (keys.find(subKey) == keys.end())
+				subKey = it->first.substr(psize, pos - psize);
+			if (keySet.find(subKey) == keySet.end())
 			{
 				range.push_back(subKey);
-				keys.insert(subKey);
+				keySet.insert(subKey);
 			}
 		}
 	}
diff --git a/Util/src/Option.cpp b/Util/src/Option.cpp
index 1d316aa0d..9ef2db5f8 100644
--- a/Util/src/Option.cpp
+++ b/Util/src/Option.cpp
@@ -60,9 +60,9 @@ Option::Option(const Option& option):
 }
 
 
-Option::Option(const std::string& fullName, const std::string& shortName):
-	_shortName(shortName),
-	_fullName(fullName),
+Option::Option(const std::string& rFullName, const std::string& rShortName):
+	_shortName(rShortName),
+	_fullName(rFullName),
 	_required(false),
 	_repeatable(false),
 	_argRequired(false),
@@ -73,11 +73,11 @@ Option::Option(const std::string& fullName, const std::string& shortName):
 }
 
 
-Option::Option(const std::string& fullName, const std::string& shortName, const std::string& description, bool required):
-	_shortName(shortName),
-	_fullName(fullName),
-	_description(description),
-	_required(required),
+Option::Option(const std::string& rFullName, const std::string& rShortName, const std::string& rDescription, bool isRequired):
+	_shortName(rShortName),
+	_fullName(rFullName),
+	_description(rDescription),
+	_required(isRequired),
 	_repeatable(false),
 	_argRequired(false),
 	_pValidator(0),
@@ -87,11 +87,11 @@ Option::Option(const std::string& fullName, const std::string& shortName, const
 }
 
 
-Option::Option(const std::string& fullName, const std::string& shortName, const std::string& description, bool required, const std::string& argName, bool argRequired):
-	_shortName(shortName),
-	_fullName(fullName),
-	_description(description),
-	_required(required),
+Option::Option(const std::string& rFullName, const std::string& rShortName, const std::string& rDescription, bool isRequired, const std::string& argName, bool argRequired):
+	_shortName(rShortName),
+	_fullName(rFullName),
+	_description(rDescription),
+	_required(isRequired),
 	_repeatable(false),
 	_argName(argName),
 	_argRequired(argRequired),
@@ -173,10 +173,10 @@ Option& Option::repeatable(bool flag)
 }
 
 	
-Option& Option::argument(const std::string& name, bool required)
+Option& Option::argument(const std::string& name, bool isRequired)
 {
 	_argName     = name;
-	_argRequired = required;
+	_argRequired = isRequired;
 	return *this;
 }
 
@@ -189,9 +189,9 @@ Option& Option::noArgument()
 }
 
 
-Option& Option::group(const std::string& group)
+Option& Option::group(const std::string& rGroup)
 {
-	_group = group;
+	_group = rGroup;
 	return *this;
 }
 
diff --git a/Util/src/ServerApplication.cpp b/Util/src/ServerApplication.cpp
index 2555f2f56..3a40cf490 100644
--- a/Util/src/ServerApplication.cpp
+++ b/Util/src/ServerApplication.cpp
@@ -610,16 +610,16 @@ void ServerApplication::waitForTerminationRequest()
 }
 
 
-int ServerApplication::run(int argc, char** argv)
+int ServerApplication::run(int argc, char** pArgv)
 {
-	bool runAsDaemon = isDaemon(argc, argv);
+	bool runAsDaemon = isDaemon(argc, pArgv);
 	if (runAsDaemon)
 	{
 		beDaemon();
 	}
 	try
 	{
-		init(argc, argv);
+		init(argc, pArgv);
 		if (runAsDaemon)
 		{
 			int rc = chdir("/");
@@ -668,12 +668,12 @@ int ServerApplication::run(const std::vector<std::string>& args)
 }
 
 
-bool ServerApplication::isDaemon(int argc, char** argv)
+bool ServerApplication::isDaemon(int argc, char** pArgv)
 {
 	std::string option("--daemon");
 	for (int i = 1; i < argc; ++i)
 	{
-		if (option == argv[i])
+		if (option == pArgv[i])
 			return true;
 	}
 	return false;
@@ -708,17 +708,17 @@ void ServerApplication::beDaemon()
 }
 
 
-void ServerApplication::defineOptions(OptionSet& options)
+void ServerApplication::defineOptions(OptionSet& rOptions)
 {
-	Application::defineOptions(options);
+	Application::defineOptions(rOptions);
 
-	options.addOption(
+	rOptions.addOption(
 		Option("daemon", "", "Run application as a daemon.")
 			.required(false)
 			.repeatable(false)
 			.callback(OptionCallback<ServerApplication>(this, &ServerApplication::handleDaemon)));
 
-	options.addOption(
+	rOptions.addOption(
 		Option("pidfile", "", "Write the process ID of the application to given file.")
 			.required(false)
 			.repeatable(false)
@@ -727,13 +727,13 @@ void ServerApplication::defineOptions(OptionSet& options)
 }
 
 
-void ServerApplication::handleDaemon(const std::string& name, const std::string& value)
+void ServerApplication::handleDaemon(const std::string& rName, const std::string& Value)
 {
 	config().setBool("application.runAsDaemon", true);
 }
 
 
-void ServerApplication::handlePidFile(const std::string& name, const std::string& value)
+void ServerApplication::handlePidFile(const std::string& rName, const std::string& value)
 {
 	std::ofstream ostr(value.c_str());
 	if (ostr.good())
diff --git a/Util/src/Timer.cpp b/Util/src/Timer.cpp
index 479645eb5..93c3210a0 100644
--- a/Util/src/Timer.cpp
+++ b/Util/src/Timer.cpp
@@ -30,8 +30,8 @@ namespace Util {
 class TimerNotification: public Poco::Notification
 {
 public:
-	TimerNotification(Poco::TimedNotificationQueue& queue):
-		_queue(queue)
+	TimerNotification(Poco::TimedNotificationQueue& rQueue):
+		_queue(rQueue)
 	{
 	}
 	
@@ -54,8 +54,8 @@ private:
 class StopNotification: public TimerNotification
 {
 public:
-	StopNotification(Poco::TimedNotificationQueue& queue):
-		TimerNotification(queue)
+	StopNotification(Poco::TimedNotificationQueue& rQueue):
+		TimerNotification(rQueue)
 	{
 	}
 	
@@ -74,8 +74,8 @@ public:
 class CancelNotification: public TimerNotification
 {
 public:
-	CancelNotification(Poco::TimedNotificationQueue& queue):
-		TimerNotification(queue)
+	CancelNotification(Poco::TimedNotificationQueue& rQueue):
+		TimerNotification(rQueue)
 	{
 	}
 	
@@ -103,8 +103,8 @@ private:
 class TaskNotification: public TimerNotification
 {
 public:
-	TaskNotification(Poco::TimedNotificationQueue& queue, TimerTask::Ptr pTask):
-		TimerNotification(queue),
+	TaskNotification(Poco::TimedNotificationQueue& rQueue, TimerTask::Ptr pTask):
+		TimerNotification(rQueue),
 		_pTask(pTask)
 	{
 	}
@@ -151,8 +151,8 @@ private:
 class PeriodicTaskNotification: public TaskNotification
 {
 public:
-	PeriodicTaskNotification(Poco::TimedNotificationQueue& queue, TimerTask::Ptr pTask, long interval):
-		TaskNotification(queue, pTask),
+	PeriodicTaskNotification(Poco::TimedNotificationQueue& rQueue, TimerTask::Ptr pTask, long interval):
+		TaskNotification(rQueue, pTask),
 		_interval(interval)
 	{
 	}
@@ -185,8 +185,8 @@ private:
 class FixedRateTaskNotification: public TaskNotification
 {
 public:
-	FixedRateTaskNotification(Poco::TimedNotificationQueue& queue, TimerTask::Ptr pTask, long interval, Poco::Clock clock):
-		TaskNotification(queue, pTask),
+	FixedRateTaskNotification(Poco::TimedNotificationQueue& rQueue, TimerTask::Ptr pTask, long interval, Poco::Clock clock):
+		TaskNotification(rQueue, pTask),
 		_interval(interval),
 		_nextExecution(clock)
 	{
diff --git a/Util/src/XMLConfiguration.cpp b/Util/src/XMLConfiguration.cpp
index b039da783..9bdbe5a90 100644
--- a/Util/src/XMLConfiguration.cpp
+++ b/Util/src/XMLConfiguration.cpp
@@ -260,7 +260,7 @@ void XMLConfiguration::enumerate(const std::string& key, Keys& range) const
 {
 	using Poco::NumberFormatter;
 	
-	std::multiset<std::string> keys;
+	std::multiset<std::string> keySet;
 	const Poco::XML::Node* pNode = findNode(key);
 	if (pNode)
 	{
@@ -270,12 +270,12 @@ void XMLConfiguration::enumerate(const std::string& key, Keys& range) const
 			if (pChild->nodeType() == Poco::XML::Node::ELEMENT_NODE)
 			{
 				const std::string& nodeName = pChild->nodeName();
-				int n = (int) keys.count(nodeName);
+				int n = (int) keySet.count(nodeName);
 				if (n)
 					range.push_back(nodeName + "[" + NumberFormatter::format(n) + "]");
 				else
 					range.push_back(nodeName);
-				keys.insert(nodeName);
+				keySet.insert(nodeName);
 			}
 			pChild = pChild->nextSibling();
 		}