diff --git a/Foundation/Foundation_vs80.vcproj b/Foundation/Foundation_vs80.vcproj
index 3fc78f495..cafea16a6 100644
--- a/Foundation/Foundation_vs80.vcproj
+++ b/Foundation/Foundation_vs80.vcproj
@@ -1691,6 +1691,10 @@
 					RelativePath=".\src\ThreadPool.cpp"
 					>
 				</File>
+				<File
+					RelativePath=".\src\ThreadTarget.cpp"
+					>
+				</File>
 				<File
 					RelativePath=".\src\Timer.cpp"
 					>
@@ -1823,6 +1827,10 @@
 					RelativePath=".\include\Poco\ThreadPool.h"
 					>
 				</File>
+				<File
+					RelativePath=".\include\Poco\ThreadTarget.h"
+					>
+				</File>
 				<File
 					RelativePath=".\include\Poco\Timer.h"
 					>
diff --git a/Foundation/include/Poco/Config.h b/Foundation/include/Poco/Config.h
index abc1cf794..191fdb58c 100644
--- a/Foundation/include/Poco/Config.h
+++ b/Foundation/include/Poco/Config.h
@@ -9,7 +9,7 @@
 //
 // Feature configuration for the POCO libraries.
 //
-// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// Copyright (c) 2006-2008, Applied Informatics Software Engineering GmbH.
 // and Contributors.
 //
 // Permission is hereby granted, free of charge, to any person or organization
@@ -60,4 +60,9 @@
 // #define POCO_NO_SHAREDMEMORY
 
 
+// Define to desired default thread stack size
+// Zero means OS default
+#define POCO_THREAD_STACK_SIZE 0
+
+
 #endif // Foundation_Config_INCLUDED
diff --git a/Foundation/include/Poco/Thread.h b/Foundation/include/Poco/Thread.h
index 8f9e66aa5..bfd0257bc 100644
--- a/Foundation/include/Poco/Thread.h
+++ b/Foundation/include/Poco/Thread.h
@@ -68,6 +68,8 @@ class Foundation_API Thread: private ThreadImpl
 	/// The name of a thread can be changed at any time.
 {
 public:	
+	using ThreadImpl::Callable;
+
 	enum Priority
 		/// Thread priorities.
 	{
@@ -108,9 +110,39 @@ public:
 	Priority getPriority() const;
 		/// Returns the thread's priority.
 
+	void setOSPriority(int prio);
+		/// Sets the thread's priority, using an operating system specific
+		/// priority value. Use getMinOSPriority() and getMaxOSPriority() to
+		/// obtain mininum and maximum priority values.
+		
+	int getOSPriority() const;
+		/// Returns the thread's priority, expressed as an operating system
+		/// specific priority value.
+		
+	static int getMinOSPriority();
+		/// Returns the mininum operating system-specific priority value,
+		/// which can be passed to setOSPriority().
+		
+	static int getMaxOSPriority();
+		/// Returns the maximum operating system-specific priority value,
+		/// which can be passed to setOSPriority().
+
+	void setStackSize(int size);
+		/// Sets the thread's stack size in bytes.
+		/// Setting the stack size to 0 will use the default stack size.
+		/// Typically, the real stack size is rounded up to the nearest
+		/// page size multiple.
+
+	int getStackSize() const;
+		/// Returns the thread's stack size in bytes.
+		/// If the default stack size is used, 0 is returned.
+
 	void start(Runnable& target);
 		/// Starts the thread with the given target.
 
+	void start(Callable target, void* pData = 0);
+		/// Starts the thread with the given target and parameter.
+
 	void join();
 		/// Waits until the thread completes execution.	
 		/// If multiple threads try to join the same
@@ -216,6 +248,42 @@ inline Thread* Thread::current()
 }
 
 
+inline void Thread::setOSPriority(int prio)
+{
+	setOSPriorityImpl(prio);	
+}
+
+	
+inline int Thread::getOSPriority() const
+{
+	return getOSPriorityImpl();
+}
+
+	
+inline int Thread::getMinOSPriority()
+{
+	return ThreadImpl::getMinOSPriorityImpl();
+}
+
+	
+inline int Thread::getMaxOSPriority()
+{
+	return ThreadImpl::getMaxOSPriorityImpl();
+}
+
+
+inline void Thread::setStackSize(int size)
+{
+	setStackSizeImpl(size);
+}
+
+
+inline int Thread::getStackSize() const
+{
+	return getStackSizeImpl();
+}
+
+
 } // namespace Poco
 
 
diff --git a/Foundation/include/Poco/ThreadPool.h b/Foundation/include/Poco/ThreadPool.h
index e4eca293d..4df208dec 100644
--- a/Foundation/include/Poco/ThreadPool.h
+++ b/Foundation/include/Poco/ThreadPool.h
@@ -69,14 +69,21 @@ class Foundation_API ThreadPool
 	/// from the pool.
 {
 public:
-	ThreadPool(int minCapacity = 2, int maxCapacity = 16, int idleTime = 60);
-	ThreadPool(const std::string& name, int minCapacity = 2, int maxCapacity = 16, int idleTime = 60);
+	ThreadPool(int minCapacity = 2,
+		int maxCapacity = 16,
+		int idleTime = 60,
+		int stackSize = POCO_THREAD_STACK_SIZE);
+	ThreadPool(const std::string& name,
+		int minCapacity = 2,
+		int maxCapacity = 16,
+		int idleTime = 60,
+		int stackSize = POCO_THREAD_STACK_SIZE);
 		/// Creates a thread pool with minCapacity threads.
 		/// If required, up to maxCapacity threads are created
 		/// a NoThreadAvailableException exception is thrown.
 		/// If a thread is running idle for more than idleTime seconds,
 		/// and more than minCapacity threads are running, the thread
-		/// is killed.
+		/// is killed. Threads are created with given stack size.
 
 	~ThreadPool();
 		/// Currently running threads will remain active
@@ -89,6 +96,13 @@ public:
 	int capacity() const;
 		/// Returns the maximum capacity of threads.
 
+	void setStackSize(int stackSize);
+		/// Sets the stack size for threads.
+		/// New stack size applies only for newly created threads.
+
+	int getStackSize() const;
+		/// Returns the stack size used to create new threads.
+
 	int used() const;
 		/// Returns the number of currently used threads.
 
@@ -159,11 +173,26 @@ private:
 	int _idleTime;
 	int _serial;
 	int _age;
+	int _stackSize;
 	ThreadVec _threads;
 	mutable FastMutex _mutex;
 };
 
 
+// inlines
+
+inline void ThreadPool::setStackSize(int stackSize)
+{
+	_stackSize = stackSize;
+}
+
+
+inline int ThreadPool::getStackSize() const
+{
+	return _stackSize;
+}
+
+
 } // namespace Poco
 
 
diff --git a/Foundation/include/Poco/Thread_POSIX.h b/Foundation/include/Poco/Thread_POSIX.h
index 84c2574c2..29cbc2c1f 100644
--- a/Foundation/include/Poco/Thread_POSIX.h
+++ b/Foundation/include/Poco/Thread_POSIX.h
@@ -59,6 +59,8 @@ namespace Poco {
 class Foundation_API ThreadImpl
 {
 public:	
+	typedef void (*Callable)(void*);
+
 	enum Priority
 	{
 		PRIO_LOWEST_IMPL,
@@ -68,13 +70,29 @@ public:
 		PRIO_HIGHEST_IMPL
 	};
 
+	struct CallbackData: public RefCountedObject
+	{
+		CallbackData(): callback(0), pData(0)
+		{
+		}
+
+		Callable  callback;
+		void*     pData; 
+	};
+
 	ThreadImpl();				
 	~ThreadImpl();
 
-	Runnable& targetImpl() const;
 	void setPriorityImpl(int prio);
 	int getPriorityImpl() const;
+	void setOSPriorityImpl(int prio);
+	int getOSPriorityImpl() const;
+	static int getMinOSPriorityImpl();
+	static int getMaxOSPriorityImpl();
+	void setStackSizeImpl(int size);
+	int getStackSizeImpl() const;
 	void startImpl(Runnable& target);
+	void startImpl(Callable target, void* pData = 0);
 
 	void joinImpl();
 	bool joinImpl(long milliseconds);
@@ -84,28 +102,35 @@ public:
 	static ThreadImpl* currentImpl();
 
 protected:
-	static void* entry(void* pThread);
+	static void* runnableEntry(void* pThread);
+	static void* callableEntry(void* pThread);
 	static int mapPrio(int prio);
+	static int reverseMapPrio(int osPrio);
 
 private:
 	struct ThreadData: public RefCountedObject
 	{
 		ThreadData():
-			pTarget(0),
+			pRunnableTarget(0),
+			pCallbackTarget(0),
 			thread(0),
 			prio(PRIO_NORMAL_IMPL),
-			done(false)
+			done(false),
+			stackSize(POCO_THREAD_STACK_SIZE)
 		{
 		}
 
-		Runnable* pTarget;
-		pthread_t thread;
-		int       prio;
-		Event     done;
+		Runnable*     pRunnableTarget;
+		AutoPtr<CallbackData> pCallbackTarget;
+		pthread_t     thread;
+		int           prio;
+		int           osPrio;
+		Event         done;
+		std::size_t   stackSize;
 	};
-	
+
 	AutoPtr<ThreadData> _pData;
-	
+
 	static pthread_key_t _currentKey;
 	static bool          _haveCurrentKey;
 	
@@ -125,6 +150,12 @@ inline int ThreadImpl::getPriorityImpl() const
 }
 
 
+inline int ThreadImpl::getOSPriorityImpl() const
+{
+	return _pData->osPrio;
+}
+
+
 inline void ThreadImpl::sleepImpl(long milliseconds)
 {
 #if defined(__VMS) || defined(__digital__)
@@ -142,12 +173,25 @@ inline void ThreadImpl::sleepImpl(long milliseconds)
 }
 
 
+inline bool ThreadImpl::isRunningImpl() const
+{
+	return _pData->pRunnableTarget != 0 ||
+		(_pData->pCallbackTarget.get() != 0 && _pData->pCallbackTarget->callback != 0);
+}
+
+
 inline void ThreadImpl::yieldImpl()
 {
 	sched_yield();
 }
 
 
+inline int ThreadImpl::getStackSizeImpl() const
+{
+	return _pData->stackSize;
+}
+
+
 } // namespace Poco
 
 
diff --git a/Foundation/include/Poco/Thread_WIN32.h b/Foundation/include/Poco/Thread_WIN32.h
index f5b349cc5..2a87162f0 100644
--- a/Foundation/include/Poco/Thread_WIN32.h
+++ b/Foundation/include/Poco/Thread_WIN32.h
@@ -51,6 +51,24 @@ namespace Poco {
 class Foundation_API ThreadImpl
 {
 public:	
+	typedef void (*Callable)(void*);
+
+#if defined(_DLL)
+	typedef DWORD (WINAPI *Entry)(LPVOID);
+#else
+	typedef unsigned (__stdcall *Entry)(void*);
+#endif
+
+	struct CallbackData
+	{
+		CallbackData(): callback(0), pData(0)
+		{
+		}
+
+		Callable  callback;
+		void*     pData; 
+	};
+
 	enum Priority
 	{
 		PRIO_LOWEST_IMPL  = THREAD_PRIORITY_LOWEST,
@@ -65,7 +83,14 @@ public:
 
 	void setPriorityImpl(int prio);
 	int getPriorityImpl() const;
+	void setOSPriorityImpl(int prio);
+	int getOSPriorityImpl() const;
+	static int getMinOSPriorityImpl();
+	static int getMaxOSPriorityImpl();
+	void setStackSizeImpl(int size);
+	int getStackSizeImpl() const;
 	void startImpl(Runnable& target);
+	void startImpl(Callable target, void* pData = 0);
 
 	void joinImpl();
 	bool joinImpl(long milliseconds);
@@ -76,15 +101,26 @@ public:
 
 protected:
 #if defined(_DLL)
-	static DWORD WINAPI entry(LPVOID pThread);
+	static DWORD WINAPI runnableEntry(LPVOID pThread);
 #else
-	static unsigned __stdcall entry(void* pThread);
+	static unsigned __stdcall runnableEntry(void* pThread);
 #endif
 
+#if defined(_DLL)
+	static DWORD WINAPI callableEntry(LPVOID pThread);
+#else
+	static unsigned __stdcall callableEntry(void* pThread);
+#endif
+
+	void createImpl(Entry ent, void* pData);
+	void threadCleanup();
+
 private:
-	Runnable* _pTarget;
-	HANDLE    _thread;
-	int       _prio;
+	Runnable*    _pRunnableTarget;
+	CallbackData _callbackTarget;
+	HANDLE       _thread;
+	int          _prio;
+	int          _stackSize;
 
 	static DWORD _currentKey;
 };
@@ -99,6 +135,24 @@ inline int ThreadImpl::getPriorityImpl() const
 }
 
 
+inline int ThreadImpl::getOSPriorityImpl() const
+{
+	return _prio;
+}
+
+
+inline int ThreadImpl::getMinOSPriorityImpl()
+{
+	return PRIO_LOWEST_IMPL;
+}
+
+
+inline int ThreadImpl::getMaxOSPriorityImpl()
+{
+	return PRIO_HIGHEST_IMPL;
+}
+
+
 inline void ThreadImpl::sleepImpl(long milliseconds)
 {
 	Sleep(DWORD(milliseconds));
@@ -111,6 +165,18 @@ inline void ThreadImpl::yieldImpl()
 }
 
 
+inline void ThreadImpl::setStackSizeImpl(int size)
+{
+	_stackSize = size;
+}
+
+
+inline int ThreadImpl::getStackSizeImpl() const
+{
+	return _stackSize;
+}
+
+
 } // namespace Poco
 
 
diff --git a/Foundation/src/Thread.cpp b/Foundation/src/Thread.cpp
index 884d7261f..276a451df 100644
--- a/Foundation/src/Thread.cpp
+++ b/Foundation/src/Thread.cpp
@@ -91,6 +91,12 @@ void Thread::start(Runnable& target)
 }
 
 
+void Thread::start(Callable target, void* pData)
+{
+	startImpl(target, pData);
+}
+
+
 void Thread::join()
 {
 	joinImpl();
diff --git a/Foundation/src/ThreadPool.cpp b/Foundation/src/ThreadPool.cpp
index c0d5625cb..4c2d70340 100644
--- a/Foundation/src/ThreadPool.cpp
+++ b/Foundation/src/ThreadPool.cpp
@@ -50,7 +50,7 @@ namespace Poco {
 class PooledThread: public Runnable
 {
 public:
-	PooledThread(const std::string& name);
+	PooledThread(const std::string& name, int stackSize = POCO_THREAD_STACK_SIZE);
 	~PooledThread();
 
 	void start();
@@ -66,17 +66,17 @@ public:
 private:
 	volatile bool        _idle;
 	volatile std::time_t _idleTime;
-	Runnable*       _pTarget;
-	std::string     _name;
-	Thread          _thread;
-	Event           _targetReady;
-	Event           _targetCompleted;
-	Event           _started;
-	FastMutex       _mutex;
+	Runnable*            _pTarget;
+	std::string          _name;
+	Thread               _thread;
+	Event                _targetReady;
+	Event                _targetCompleted;
+	Event                _started;
+	FastMutex            _mutex;
 };
 
 
-PooledThread::PooledThread(const std::string& name): 
+PooledThread::PooledThread(const std::string& name, int stackSize): 
 	_idle(true), 
 	_idleTime(0), 
 	_pTarget(0), 
@@ -84,6 +84,8 @@ PooledThread::PooledThread(const std::string& name):
 	_thread(name),
 	_targetCompleted(false)
 {
+	poco_assert_dbg (stackSize >= 0);
+	_thread.setStackSize(stackSize);
 	_idleTime = time(NULL);
 }
 
@@ -231,12 +233,16 @@ void PooledThread::run()
 }
 
 
-ThreadPool::ThreadPool(int minCapacity, int maxCapacity, int idleTime): 
+ThreadPool::ThreadPool(int minCapacity,
+	int maxCapacity,
+	int idleTime,
+	int stackSize): 
 	_minCapacity(minCapacity), 
 	_maxCapacity(maxCapacity), 
 	_idleTime(idleTime),
 	_serial(0),
-	_age(0)
+	_age(0),
+	_stackSize(stackSize)
 {
 	poco_assert (minCapacity >= 1 && maxCapacity >= minCapacity && idleTime > 0);
 
@@ -249,13 +255,18 @@ ThreadPool::ThreadPool(int minCapacity, int maxCapacity, int idleTime):
 }
 
 
-ThreadPool::ThreadPool(const std::string& name, int minCapacity, int maxCapacity, int idleTime):
+ThreadPool::ThreadPool(const std::string& name,
+	int minCapacity,
+	int maxCapacity,
+	int idleTime,
+	int stackSize):
 	_name(name),
 	_minCapacity(minCapacity), 
 	_maxCapacity(maxCapacity), 
 	_idleTime(idleTime),
 	_serial(0),
-	_age(0)
+	_age(0),
+	_stackSize(stackSize)
 {
 	poco_assert (minCapacity >= 1 && maxCapacity >= minCapacity && idleTime > 0);
 
@@ -452,7 +463,7 @@ PooledThread* ThreadPool::createThread()
 {
 	std::ostringstream name;
 	name << _name << "[#" << ++_serial << "]";
-	return new PooledThread(name.str());
+	return new PooledThread(name.str(), _stackSize);
 }
 
 
@@ -474,6 +485,8 @@ public:
 		if (!_pPool)
 		{
 			_pPool = new ThreadPool("default");
+			if (POCO_THREAD_STACK_SIZE > 0)
+				_pPool->setStackSize(POCO_THREAD_STACK_SIZE);
 		}
 		return _pPool;
 	}
diff --git a/Foundation/src/Thread_POSIX.cpp b/Foundation/src/Thread_POSIX.cpp
index 773153638..a71610364 100644
--- a/Foundation/src/Thread_POSIX.cpp
+++ b/Foundation/src/Thread_POSIX.cpp
@@ -38,6 +38,10 @@
 #include "Poco/Exception.h"
 #include "Poco/ErrorHandler.h"
 #include <signal.h>
+#if defined(__sun) && defined(__SVR4)
+#define __EXTENSIONS__
+#include <limits.h>
+#endif
 
 
 //
@@ -87,7 +91,7 @@ ThreadImpl::ThreadImpl():
 			
 ThreadImpl::~ThreadImpl()
 {
-	if (_pData->pTarget)
+	if (isRunningImpl())
 		pthread_detach(_pData->thread);
 }
 
@@ -97,7 +101,7 @@ void ThreadImpl::setPriorityImpl(int prio)
 	if (prio != _pData->prio)
 	{
 		_pData->prio = prio;
-		if (_pData->pTarget)
+		if (isRunningImpl())
 		{
 			struct sched_param par;
 			par.sched_priority = mapPrio(_pData->prio);
@@ -108,14 +112,111 @@ void ThreadImpl::setPriorityImpl(int prio)
 }
 
 
+void ThreadImpl::setOSPriorityImpl(int prio)
+{
+	if (prio != _pData->osPrio)
+	{
+		if (_pData->pRunnableTarget || _pData->pCallbackTarget)
+		{
+			struct sched_param par;
+			par.sched_priority = prio;
+			if (pthread_setschedparam(_pData->thread, SCHED_OTHER, &par))
+				throw SystemException("cannot set thread priority");
+		}
+		_pData->prio   = reverseMapPrio(prio);
+		_pData->osPrio = prio;
+	}
+}
+
+
+int ThreadImpl::getMinOSPriorityImpl()
+{
+#if defined(__VMS) || defined(__digital__)
+	return PRI_OTHER_MIN;
+#else
+	return sched_get_priority_min(SCHED_OTHER);
+#endif
+}
+
+
+int ThreadImpl::getMaxOSPriorityImpl()
+{
+#if defined(__VMS) || defined(__digital__)
+	return PRI_OTHER_MAX;
+#else
+	return sched_get_priority_max(SCHED_OTHER);
+#endif
+}
+
+
+void ThreadImpl::setStackSizeImpl(int size)
+{
+#ifdef POCO_OS_CYGWIN
+	_pData->stackSize = 0;
+#else
+ 	if (size !=0 && size < PTHREAD_STACK_MIN)
+ 		size = PTHREAD_STACK_MIN;
+
+ 	_pData->stackSize = size;
+#endif
+}
+
+
 void ThreadImpl::startImpl(Runnable& target)
 {
-	if (_pData->pTarget) throw SystemException("thread already running");
+	if (_pData->pRunnableTarget)
+		throw SystemException("thread already running");
 
-	_pData->pTarget = &target;
-	if (pthread_create(&_pData->thread, NULL, entry, this))
+	pthread_attr_t attributes;
+	pthread_attr_init(&attributes);
+
+	if (_pData->stackSize != 0)
 	{
-		_pData->pTarget = 0;
+		if (0 != pthread_attr_setstacksize(&attributes, _pData->stackSize))
+			throw SystemException("cannot set thread stack size");
+	}
+
+	_pData->pRunnableTarget = &target;
+	if (pthread_create(&_pData->thread, &attributes, runnableEntry, this))
+	{
+		_pData->pRunnableTarget = 0;
+		throw SystemException("cannot start thread");
+	}
+
+	if (_pData->prio != PRIO_NORMAL_IMPL)
+	{
+		struct sched_param par;
+		par.sched_priority = mapPrio(_pData->prio);
+		if (pthread_setschedparam(_pData->thread, SCHED_OTHER, &par))
+			throw SystemException("cannot set thread priority");
+	}
+}
+
+
+void ThreadImpl::startImpl(Callable target, void* pData)
+{
+	if (_pData->pCallbackTarget && _pData->pCallbackTarget->callback)
+		throw SystemException("thread already running");
+
+	pthread_attr_t attributes;
+	pthread_attr_init(&attributes);
+
+	if (_pData->stackSize != 0)
+	{
+		if (0 != pthread_attr_setstacksize(&attributes, _pData->stackSize))
+			throw SystemException("can not set thread stack size");
+	}
+
+	if (0 == _pData->pCallbackTarget.get())
+		_pData->pCallbackTarget = new CallbackData;
+
+	_pData->pCallbackTarget->callback = target;
+	_pData->pCallbackTarget->pData = pData;
+
+	if (pthread_create(&_pData->thread, &attributes, callableEntry, this))
+	{
+		_pData->pCallbackTarget->callback = 0;
+		_pData->pCallbackTarget->pData = 0;
 		throw SystemException("cannot start thread");
 	}
 
@@ -151,12 +252,6 @@ bool ThreadImpl::joinImpl(long milliseconds)
 }
 
 
-bool ThreadImpl::isRunningImpl() const
-{
-	return _pData->pTarget != 0;
-}
-
-
 ThreadImpl* ThreadImpl::currentImpl()
 {
 	if (_haveCurrentKey)
@@ -166,7 +261,7 @@ ThreadImpl* ThreadImpl::currentImpl()
 }
 
 
-void* ThreadImpl::entry(void* pThread)
+void* ThreadImpl::runnableEntry(void* pThread)
 {
 	pthread_setspecific(_currentKey, pThread);
 
@@ -183,7 +278,7 @@ void* ThreadImpl::entry(void* pThread)
 	AutoPtr<ThreadData> pData = pThreadImpl->_pData;
 	try
 	{
-		pData->pTarget->run();
+		pData->pRunnableTarget->run();
 	}
 	catch (Exception& exc)
 	{
@@ -197,7 +292,48 @@ void* ThreadImpl::entry(void* pThread)
 	{
 		ErrorHandler::handle();
 	}
-	pData->pTarget = 0;
+
+	pData->pRunnableTarget = 0;
+	pData->done.set();
+	return 0;
+}
+
+
+void* ThreadImpl::callableEntry(void* pThread)
+{
+	pthread_setspecific(_currentKey, pThread);
+
+#if defined(POCO_OS_FAMILY_UNIX)
+	sigset_t sset;
+	sigemptyset(&sset);
+	sigaddset(&sset, SIGQUIT);
+	sigaddset(&sset, SIGTERM);
+	sigaddset(&sset, SIGPIPE); 
+	pthread_sigmask(SIG_BLOCK, &sset, 0);
+#endif
+
+	ThreadImpl* pThreadImpl = reinterpret_cast<ThreadImpl*>(pThread);
+	AutoPtr<ThreadData> pData = pThreadImpl->_pData;
+	try
+	{
+		pData->pCallbackTarget->callback(pData->pCallbackTarget->pData);
+	}
+	catch (Exception& exc)
+	{
+		ErrorHandler::handle(exc);
+	}
+	catch (std::exception& exc)
+	{
+		ErrorHandler::handle(exc);
+	}
+	catch (...)
+	{
+		ErrorHandler::handle();
+	}
+
+	pData->pCallbackTarget->callback = 0;
+	pData->pCallbackTarget->pData = 0;
+
 	pData->done.set();
 	return 0;
 }
@@ -232,4 +368,22 @@ int ThreadImpl::mapPrio(int prio)
 }
 
 
+int ThreadImpl::reverseMapPrio(int prio)
+{
+	int pmin = getMinOSPriorityImpl();
+	int pmax = getMaxOSPriorityImpl();
+	int normal = pmin + (pmax - pmin)/2;
+	if (prio == pmax)
+		return PRIO_HIGHEST_IMPL;
+	if (prio > normal)
+		return PRIO_HIGH_IMPL;
+	else if (prio == normal)
+		return PRIO_NORMAL_IMPL;
+	else if (prio > pmin)
+		return PRIO_LOW_IMPL;
+	else
+		return PRIO_LOWEST_IMPL;
+}
+
+
 } // namespace Poco
diff --git a/Foundation/src/Thread_WIN32.cpp b/Foundation/src/Thread_WIN32.cpp
index 7fb9a102a..ed6b5941c 100644
--- a/Foundation/src/Thread_WIN32.cpp
+++ b/Foundation/src/Thread_WIN32.cpp
@@ -46,7 +46,11 @@ namespace Poco {
 DWORD ThreadImpl::_currentKey = TLS_OUT_OF_INDEXES;
 
 
-ThreadImpl::ThreadImpl(): _pTarget(0), _thread(0), _prio(PRIO_NORMAL_IMPL)
+ThreadImpl::ThreadImpl():
+	_pRunnableTarget(0),
+	_thread(0),
+	_prio(PRIO_NORMAL_IMPL),
+	_stackSize(POCO_THREAD_STACK_SIZE)
 {
 	if (_currentKey == TLS_OUT_OF_INDEXES)
 	{
@@ -77,17 +81,43 @@ void ThreadImpl::setPriorityImpl(int prio)
 }
 
 
+void ThreadImpl::setOSPriorityImpl(int prio)
+{
+	setPriorityImpl(prio);
+}
+
+
 void ThreadImpl::startImpl(Runnable& target)
 {
-	if (_thread) throw SystemException("thread already running");
+	if (isRunningImpl())
+		throw SystemException("thread already running");
 
-	_pTarget = &target;
+	_pRunnableTarget = &target;
+
+	createImpl(runnableEntry, this);
+}
+
+
+void ThreadImpl::startImpl(Callable target, void* pData)
+{
+	if (isRunningImpl())
+		throw SystemException("thread already running");
+
+	_callbackTarget.callback = target;
+	_callbackTarget.pData = pData;
+
+	createImpl(callableEntry, this);
+}
+
+
+void ThreadImpl::createImpl(Entry ent, void* pData)
+{
 #if defined(_DLL)
 	DWORD threadId;
-	_thread = CreateThread(NULL, 0, entry, this, 0, &threadId);
+	_thread = CreateThread(NULL, _stackSize, ent, pData, 0, &threadId);
 #else
 	unsigned threadId;
-	_thread = (HANDLE) _beginthreadex(NULL, 0, entry, this, 0, &threadId);
+	_thread = (HANDLE) _beginthreadex(NULL, _stackSize, runnableEntry, this, 0, &threadId);
 #endif
 	if (!_thread)
 		throw SystemException("cannot create thread");
@@ -103,6 +133,7 @@ void ThreadImpl::joinImpl()
 	switch (WaitForSingleObject(_thread, INFINITE))
 	{
 	case WAIT_OBJECT_0:
+		threadCleanup();
 		return;
 	default:
 		throw SystemException("cannot join thread");
@@ -119,6 +150,7 @@ bool ThreadImpl::joinImpl(long milliseconds)
 	case WAIT_TIMEOUT:
 		return false;
 	case WAIT_OBJECT_0:
+		threadCleanup();
 		return true;
 	default:
 		throw SystemException("cannot join thread");
@@ -137,6 +169,13 @@ bool ThreadImpl::isRunningImpl() const
 }
 
 
+void ThreadImpl::threadCleanup()
+{
+	if (!_thread) return;
+	if (CloseHandle(_thread)) _thread = 0;
+}
+
+
 ThreadImpl* ThreadImpl::currentImpl()
 {
 	if (_currentKey == TLS_OUT_OF_INDEXES)
@@ -147,15 +186,43 @@ ThreadImpl* ThreadImpl::currentImpl()
 
 
 #if defined(_DLL)
-DWORD WINAPI ThreadImpl::entry(LPVOID pThread)
+DWORD WINAPI ThreadImpl::runnableEntry(LPVOID pThread)
 #else
-unsigned __stdcall ThreadImpl::entry(void* pThread)
+unsigned __stdcall ThreadImpl::runnableEntry(void* pThread)
 #endif
 {
 	TlsSetValue(_currentKey, pThread);
 	try
 	{
-		reinterpret_cast<ThreadImpl*>(pThread)->_pTarget->run();
+		reinterpret_cast<ThreadImpl*>(pThread)->_pRunnableTarget->run();
+	}
+	catch (Exception& exc)
+	{
+		ErrorHandler::handle(exc);
+	}
+	catch (std::exception& exc)
+	{
+		ErrorHandler::handle(exc);
+	}
+	catch (...)
+	{
+		ErrorHandler::handle();
+	}
+	return 0;
+}
+
+
+#if defined(_DLL)
+DWORD WINAPI ThreadImpl::callableEntry(LPVOID pThread)
+#else
+unsigned __stdcall ThreadImpl::callableEntry(void* pThread)
+#endif
+{
+	TlsSetValue(_currentKey, pThread);
+	try
+	{
+		ThreadImpl* pTI = reinterpret_cast<ThreadImpl*>(pThread);
+		pTI->_callbackTarget.callback(pTI->_callbackTarget.pData);
 	}
 	catch (Exception& exc)
 	{
diff --git a/Foundation/testsuite/src/ThreadPoolTest.cpp b/Foundation/testsuite/src/ThreadPoolTest.cpp
index a9122ca73..8081e1e47 100644
--- a/Foundation/testsuite/src/ThreadPoolTest.cpp
+++ b/Foundation/testsuite/src/ThreadPoolTest.cpp
@@ -57,7 +57,8 @@ ThreadPoolTest::~ThreadPoolTest()
 void ThreadPoolTest::testThreadPool()
 {
 	ThreadPool pool(2, 3, 3);
-	
+	pool.setStackSize(1);
+
 	assert (pool.allocated() == 2);
 	assert (pool.used() == 0);
 	assert (pool.capacity() == 3);
diff --git a/Foundation/testsuite/src/ThreadTest.cpp b/Foundation/testsuite/src/ThreadTest.cpp
index 17f8b949b..aecc3f20f 100644
--- a/Foundation/testsuite/src/ThreadTest.cpp
+++ b/Foundation/testsuite/src/ThreadTest.cpp
@@ -35,11 +35,18 @@
 #include "CppUnit/TestSuite.h"
 #include "Poco/Thread.h"
 #include "Poco/Runnable.h"
+#include "Poco/ThreadTarget.h"
 #include "Poco/Event.h"
+#include <iostream>
+#if defined(__sun) && defined(__SVR4)
+#define __EXTENSIONS__
+#include <limits.h>
+#endif
 
 
 using Poco::Thread;
 using Poco::Runnable;
+using Poco::ThreadTarget;
 using Poco::Event;
 
 
@@ -74,6 +81,13 @@ public:
 		_event.set();
 	}
 	
+	static void staticFunc()
+	{
+		++_staticVar;
+	}
+
+	static int _staticVar;
+
 private:
 	bool _ran;
 	std::string _threadName;
@@ -81,6 +95,21 @@ private:
 };
 
 
+int MyRunnable::_staticVar = 0;
+
+
+void freeFunc()
+{
+	++MyRunnable::_staticVar;
+}
+
+
+void freeFunc(void* pData)
+{
+	MyRunnable::_staticVar += *reinterpret_cast<int*>(pData);
+}
+
+
 ThreadTest::ThreadTest(const std::string& name): CppUnit::TestCase(name)
 {
 }
@@ -195,6 +224,82 @@ void ThreadTest::testJoin()
 }
 
 
+void ThreadTest::testThreadTarget()
+{
+	ThreadTarget te(&MyRunnable::staticFunc);
+	Thread thread;
+
+	assert (!thread.isRunning());
+
+	int tmp = MyRunnable::_staticVar;
+	thread.start(te);
+	thread.join();
+	assert (tmp + 1 == MyRunnable::_staticVar);
+
+	ThreadTarget te1(freeFunc);
+	assert (!thread.isRunning());
+
+	tmp = MyRunnable::_staticVar;
+	thread.start(te1);
+	thread.join();
+	assert (tmp + 1 == MyRunnable::_staticVar);
+}
+
+
+void ThreadTest::testThreadFunction()
+{
+	Thread thread;
+
+	assert (!thread.isRunning());
+
+	int tmp = MyRunnable::_staticVar;
+	thread.start(freeFunc, &tmp);
+	thread.join();
+	assert (tmp * 2 == MyRunnable::_staticVar);
+
+	assert (!thread.isRunning());
+
+	tmp = MyRunnable::_staticVar = 0;
+	thread.start(freeFunc, &tmp);
+	thread.join();
+	assert (0 == MyRunnable::_staticVar);
+}
+
+
+void ThreadTest::testThreadStackSize()
+{
+	int stackSize = 50000000;
+
+	Thread thread;
+	assert (0 == thread.getStackSize());
+	thread.setStackSize(stackSize);
+	assert (stackSize == thread.getStackSize());
+	int tmp = MyRunnable::_staticVar;
+	thread.start(freeFunc, &tmp);
+	thread.join();
+	assert (tmp * 2 == MyRunnable::_staticVar);
+
+	stackSize = 1;
+	thread.setStackSize(stackSize);
+#if defined(POCO_OS_FAMILY_UNIX) && !defined(POCO_OS_CYGWIN)
+	assert (PTHREAD_STACK_MIN == thread.getStackSize());
+#else
+	assert (stackSize == thread.getStackSize());
+#endif
+	tmp = MyRunnable::_staticVar;
+	thread.start(freeFunc, &tmp);
+	thread.join();
+	assert (tmp * 2 == MyRunnable::_staticVar);
+
+	thread.setStackSize(0);
+	assert (0 == thread.getStackSize());
+	tmp = MyRunnable::_staticVar;
+	thread.start(freeFunc, &tmp);
+	thread.join();
+	assert (tmp * 2 == MyRunnable::_staticVar);
+}
+
+
 void ThreadTest::setUp()
 {
 }
@@ -214,6 +319,9 @@ CppUnit::Test* ThreadTest::suite()
 	CppUnit_addTest(pSuite, ThreadTest, testCurrent);
 	CppUnit_addTest(pSuite, ThreadTest, testThreads);
 	CppUnit_addTest(pSuite, ThreadTest, testJoin);
+	CppUnit_addTest(pSuite, ThreadTest, testThreadTarget);
+	CppUnit_addTest(pSuite, ThreadTest, testThreadFunction);
+	CppUnit_addTest(pSuite, ThreadTest, testThreadStackSize);
 
 	return pSuite;
 }
diff --git a/Foundation/testsuite/src/ThreadTest.h b/Foundation/testsuite/src/ThreadTest.h
index bf1aafa5c..ef65fdfae 100644
--- a/Foundation/testsuite/src/ThreadTest.h
+++ b/Foundation/testsuite/src/ThreadTest.h
@@ -51,6 +51,9 @@ public:
 	void testCurrent();
 	void testThreads();
 	void testJoin();
+	void testThreadTarget();
+	void testThreadFunction();
+	void testThreadStackSize();
 
 	void setUp();
 	void tearDown();