diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6c9e208e..4c4fe507 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 project(pip)
 cmake_minimum_required(VERSION 2.6)
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 include(CheckFunctionExists)
diff --git a/doc/examples/pistatemachine.cpp b/doc/examples/pistatemachine.cpp
index d5228a91..f7d2dda3 100644
--- a/doc/examples/pistatemachine.cpp
+++ b/doc/examples/pistatemachine.cpp
@@ -4,7 +4,7 @@
 enum Mode {Start, Manual, Auto, Finish, End};
 
 class Machine: public PIStateMachine<Mode> {
-	PIOBJECT(Machine)
+	PIOBJECT_SUBCLASS(Machine, PIObject)
 public:
 	Machine() {
 		addState(Start, "start", HANDLER(startFunc));
diff --git a/main.cpp b/main.cpp
index c82c2ab5..6620bcfb 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,9 +1,12 @@
 #include "pip.h"
 
 #include "ccm_kbd.h"
+TileProgress * tp;
 void key_event(PIKbdListener::KeyEvent e, void*) {
 	PICodeInfo::EnumInfo * ei = PICodeInfo::enumsInfo->value("PIKbdListener::SpecialKey");
 	if (!ei) return;
+	if (e.key == '-') {tp->value -= 1.; return;}
+	if (e.key == '+') {tp->value += 1.; return;}
 	piCout << PICoutManipulators::NewLine << "modifiers" << e.modifiers;
 	piForeachC (PICodeInfo::EnumeratorInfo & i, ei->members)
 		if (i.value == e.key) {
@@ -21,7 +24,7 @@ public:
 			delete t->parentTile();
 	}
 	EVENT_HANDLER1(void, eventKey, PIKbdListener::KeyEvent, e) {
-		piCout << "key" << e.key;
+		//piCout << "key" << e.key;
 	}
 };
 
@@ -112,15 +115,13 @@ public:
 };
 
 int main (int argc, char * argv[]) {
-	int cc = PIString(argv[1]).toInt();
+	/*int cc = PIString(argv[1]).toInt();
 	
 	piCout << "Deque";
 	Test<PIDeque<int> > testd(cc);
 	
-	/*piCout << PICoutManipulators::NewLine << "Vector";
-	Test<PIVector<int> > testv(cc);*/
+	return 0;*/
 	
-	return 0;
 	/*if (!(argc == 3 || argc == 4)) {
 		piCout << "UDPFileTransfer";
 		piCout << "USE: piptest [src_ip_port] [dst_ip_port] {filename}";
@@ -140,12 +141,13 @@ int main (int argc, char * argv[]) {
 	} else {
 		piCout << "wait for receiving";
 	}*/
+	
 	Catcher catcher;
 	PIScreen screen(false, key_event);
 	CONNECTU(&screen, tileEvent, &catcher, event)
 	CONNECTU(&screen, keyPressed, &catcher, eventKey)
 	screen.enableExitCapture(PIKbdListener::F10);
-	//screen.start();
+	screen.start();
 	float cx = 0, cy = 0, vx = 1., vy = 0.3, t = 0.;
 	PITimeMeasurer tm;
 	Color col = Red;
@@ -220,14 +222,13 @@ int main (int argc, char * argv[]) {
 	tile2->size_policy = PIScreenTypes::Preferred;
 	tile->addTile(tile2);
 	
-	tile2 = new TileButtons("butt0");
+	/*tile2 = new TileButtons("butt0");
 	tile2->back_format.color_back = Transparent;
 	tile->addTile(tile2);
 	((TileButtons*)tile2)->content << TileButtons::Button("first", CellFormat(Green, Transparent));
 	((TileButtons*)tile2)->content << TileButtons::Button("sec", CellFormat(Green, Red));
 	((TileButtons*)tile2)->content << TileButtons::Button("3", CellFormat(Green, Transparent));
 	((TileButtons*)tile2)->direction = PIScreenTypes::Horizontal;
-	//((TileButtons*)tile)->alignment = Center;
 	
 	tile2 = new TileButtons("butt1");
 	tile2->back_format.color_back = Transparent;
@@ -236,11 +237,52 @@ int main (int argc, char * argv[]) {
 	((TileButtons*)tile2)->content << TileButtons::Button("sec2", CellFormat(Green, Red));
 	((TileButtons*)tile2)->content << TileButtons::Button("333", CellFormat(Green, Transparent));
 	((TileButtons*)tile2)->direction = PIScreenTypes::Horizontal;
-	//((TileButtons*)tile)->alignment = Center;
 	
-	((TileButtons*)tile)->back_format.color_back = Yellow;
+	tile2 = new TileButtons("butt2");
+	tile2->back_format.color_back = Transparent;
+	tile->addTile(tile2);
+	((TileButtons*)tile2)->content << TileButtons::Button("fF", CellFormat(Green, Transparent));
+	((TileButtons*)tile2)->content << TileButtons::Button("sec2", CellFormat(Green, Red));
+	((TileButtons*)tile2)->content << TileButtons::Button("333", CellFormat(Green, Transparent));
+	((TileButtons*)tile2)->direction = PIScreenTypes::Vertical;*/
+
+	tile2 = new TileButton("butt0");
+	tile2->back_format.color_back = Transparent;
+	tile->addTile(tile2);
+	((TileButton*)tile2)->text = "first";
+	
+	tile2 = new TileButton("butt1");
+	tile2->back_format.color_back = Transparent;
+	tile->addTile(tile2);
+	((TileButton*)tile2)->text = "sec2";
+	
+	tile2 = new TileCheck("check0");
+	tile2->back_format.color_back = Transparent;
+	tile->addTile(tile2);
+	((TileCheck*)tile2)->text = "check";
+	
+	tile2 = new TileCheck("check1");
+	tile2->back_format.color_back = Transparent;
+	tile->addTile(tile2);
+	((TileCheck*)tile2)->text = "ch";
+	((TileCheck*)tile2)->toggled = true;
+	
+	tile2 = new TileButton("butt2");
+	tile2->back_format.color_back = Transparent;
+	tile->addTile(tile2);
+	((TileButton*)tile2)->text = "F";
+	
+	tp = new TileProgress("butt2");
+	//tile2->back_format.color_back = Transparent;
+	tp->maximum = 200;
+	tp->prefix = "prog: ";
+	tp->suffix = " bytes";
+	tile->addTile(tp);
+	
+	((TileButton*)tile)->back_format.color_back = Yellow;
 	tile->setMargins(2, 2, 1, 1);
 	tile->spacing = 1;
+	tile->direction = PIScreenTypes::Horizontal;
 	screen.setDialogTile(tile);
 	
 	//screen.rootTile()->hide();
diff --git a/src/console/piscreen.cpp b/src/console/piscreen.cpp
index e7ec0b49..f406c372 100644
--- a/src/console/piscreen.cpp
+++ b/src/console/piscreen.cpp
@@ -379,10 +379,14 @@ bool PIScreen::nextFocus(PIScreenTile * rt, PIKbdListener::KeyEvent key) {
 		if (tile_focus) {
 			if (tile_focus->focus_flags[NextByTab] && key.key == PIKbdListener::Tab)
 				next = 1;
-			if (tile_focus->focus_flags[NextByArrows]) {
+			if (tile_focus->focus_flags[NextByArrowsHorizontal]) {
 				if (key.key == PIKbdListener::LeftArrow) next = -1;
 				if (key.key == PIKbdListener::RightArrow) next = 1;
 			}
+			if (tile_focus->focus_flags[NextByArrowsVertical]) {
+				if (key.key == PIKbdListener::UpArrow) next = -1;
+				if (key.key == PIKbdListener::DownArrow) next = 1;
+			}
 		}
 		//piCout << ftl.size() << ind << next;
 		if (next != 0) {
diff --git a/src/console/piscreentiles.cpp b/src/console/piscreentiles.cpp
index 1bd93eb7..041381ae 100644
--- a/src/console/piscreentiles.cpp
+++ b/src/console/piscreentiles.cpp
@@ -79,7 +79,7 @@ void TileSimple::drawEvent(PIScreenDrawer * d) {
 
 TileList::TileList(const PIString & n): PIScreenTile(n) {
 	alignment = Left;
-	focus_flags = CanHasFocus | NextByArrows | NextByTab;
+	focus_flags = CanHasFocus | NextByArrowsHorizontal | NextByTab;
 	lhei = offset = cur = 0;
 	selection_mode = NoSelection;
 }
@@ -206,6 +206,39 @@ bool TileList::keyEvent(PIKbdListener::KeyEvent key) {
 
 
 
+TileButton::TileButton(const PIString & n): PIScreenTile(n) {
+	focus_flags = CanHasFocus | NextByTab | NextByArrowsAll;
+}
+
+
+void TileButton::sizeHint(int & w, int & h) const {
+	w = text.size_s() + 2;
+	h = 1;
+}
+
+
+void TileButton::drawEvent(PIScreenDrawer * d) {
+	Color cb = has_focus ? Blue : Cyan;
+	Color ct = has_focus ? White : Black;
+	int ff = has_focus ? Bold : 0;
+	d->fillRect(x, y, x + width, y + 1, ' ', Default, cb);
+	d->drawText(x, y, "[", ct, Transparent, ff);
+	d->drawText(x + (width - text.size_s()) / 2, y, text, ct, Transparent, ff);
+	d->drawText(x + width - 1, y, "]", ct, Transparent, ff);
+}
+
+
+bool TileButton::keyEvent(PIKbdListener::KeyEvent key) {
+	if (key.key == PIKbdListener::Space || key.key == PIKbdListener::Return) {
+		raiseEvent(TileEvent(ButtonClicked));
+		return true;
+	}
+	return PIScreenTile::keyEvent(key);
+}
+
+
+
+
 TileButtons::TileButtons(const PIString & n): PIScreenTile(n) {
 	focus_flags = CanHasFocus | NextByTab;
 	direction = Horizontal;
@@ -217,13 +250,13 @@ void TileButtons::sizeHint(int & w, int & h) const {
 	w = h = 0;
 	if (direction == Horizontal) {
 		piForeachC (Button & b, content)
-			w += b.first.size_s() + 2;
+			w += b.first.size_s() + 4;
 		w += piMaxi(0, content.size_s() - 1) * 2;
-		h += 3;
+		h += 1;
 	} else {
 		piForeachC (Button & b, content)
-			w = piMaxi(w, b.first.size_s() + 2 + 4);
-		h += content.size_s() * 3;
+			w = piMaxi(w, b.first.size_s() + 4);
+		h += content.size_s();
 		h += piMaxi(0, content.size_s() - 1);
 	}
 }
@@ -243,15 +276,17 @@ void TileButtons::drawEvent(PIScreenDrawer * d) {
 		Button & b(content[i]);
 		int cw = b.first.size_s() + 2, xo(0);
 		if (direction == Vertical) {
-			cw = width - 4;
+			cw = width - 2;
 			xo = (cw - b.first.size_s()) / 2 - 1;
 		}
-		d->fillRect(cx, cy, cx + cw, cy + 3, ' ', Default, cb);
-		d->drawText(cx + 1 + xo, cy + 1, b.first, ct, Transparent, ff);
+		d->fillRect(cx, cy, cx + cw + 2, cy + 1, ' ', Default, cb);
+		d->drawText(cx, cy, "[", ct, Transparent, ff);
+		d->drawText(cx + xo + 2, cy, b.first, ct, Transparent, ff);
+		d->drawText(cx + cw + 1, cy, "]", ct, Transparent, ff);
 		if (direction == Horizontal)
-			cx += b.first.size_s() + 4;
+			cx += b.first.size_s() + 6;
 		else
-			cy += 4;
+			cy += 2;
 	}
 }
 
@@ -275,3 +310,72 @@ bool TileButtons::keyEvent(PIKbdListener::KeyEvent key) {
 	};
 	return PIScreenTile::keyEvent(key);
 }
+
+
+
+
+TileCheck::TileCheck(const PIString & n): PIScreenTile(n) {
+	focus_flags = CanHasFocus | NextByTab | NextByArrowsAll;
+	toggled = false;
+}
+
+
+void TileCheck::sizeHint(int & w, int & h) const {
+	w = text.size_s() + 4;
+	h = 1;
+}
+
+
+void TileCheck::drawEvent(PIScreenDrawer * d) {
+	Color cb = has_focus ? Blue : Cyan;
+	Color ct = has_focus ? White : Black;
+	int ff = has_focus ? Bold : 0;
+	PIString cs("[ ]");
+	if (toggled) cs[1] = '*';
+	d->fillRect(x, y, x + width, y + 1, ' ', Default, cb);
+	d->drawText(x, y, cs, ct, Transparent, ff);
+	d->drawText(x + 4, y, text, ct, Transparent, ff);
+}
+
+
+bool TileCheck::keyEvent(PIKbdListener::KeyEvent key) {
+	if (key.key == PIKbdListener::Space || key.key == PIKbdListener::Return) {
+		toggled = !toggled;
+		raiseEvent(TileEvent(Toggled, toggled));
+		return true;
+	}
+	return PIScreenTile::keyEvent(key);
+}
+
+
+
+
+TileProgress::TileProgress(const PIString & n): PIScreenTile(n) {
+	maximum = 100.;
+	value = 0.;
+	suffix = " %";
+}
+
+
+void TileProgress::sizeHint(int & w, int & h) const {
+	w = 20;
+	h = 1;
+}
+
+
+void TileProgress::drawEvent(PIScreenDrawer * d) {
+	int v = maximum == 0. ? 0 : piClampd(piRoundd(value / maximum * 100.), 0, 100);
+	PIString s = prefix + PIString::fromNumber(piRoundd(value)) + suffix;
+	int w = piRoundd(v / 100. * width), sx = (width - s.size_s()) / 2;
+	d->fillRect(x, y, x + width, y + 1, ' ', Default, Cyan);
+	d->fillRect(x, y, x + w, y + 1, ' ', Default, Blue);
+	if (w < sx)
+		d->drawText(x + sx, y, s, Black, Transparent);
+	else if (w >= sx + s.size_s())
+		d->drawText(x + sx, y, s, White, Transparent);
+	else {
+		int fw = w - sx;
+		d->drawText(x + sx, y, s.left(fw), White, Transparent);
+		d->drawText(x + sx + fw, y, s.cutLeft(fw), Black, Transparent);
+	}
+}
diff --git a/src/console/piscreentiles.h b/src/console/piscreentiles.h
index 4108aa24..975cc8b6 100644
--- a/src/console/piscreentiles.h
+++ b/src/console/piscreentiles.h
@@ -67,6 +67,23 @@ protected:
 
 
 
+class TileButton: public PIScreenTile {
+public:
+	TileButton(const PIString & n = PIString());
+	enum EventType {
+		ButtonClicked
+	};
+	PIScreenTypes::CellFormat format;
+	PIString text;
+protected:
+	void sizeHint(int & w, int & h) const;
+	void drawEvent(PIScreenDrawer * d);
+	bool keyEvent(PIKbdListener::KeyEvent key);
+};
+
+
+
+
 class TileButtons: public PIScreenTile {
 public:
 	TileButtons(const PIString & n = PIString());
@@ -83,4 +100,38 @@ protected:
 };
 
 
+
+
+class TileCheck: public PIScreenTile {
+public:
+	TileCheck(const PIString & n = PIString());
+	enum EventType {
+		Toggled
+	};
+	PIScreenTypes::CellFormat format;
+	PIString text;
+	bool toggled;
+protected:
+	void sizeHint(int & w, int & h) const;
+	void drawEvent(PIScreenDrawer * d);
+	bool keyEvent(PIKbdListener::KeyEvent key);
+};
+
+
+
+
+class TileProgress: public PIScreenTile {
+public:
+	TileProgress(const PIString & n = PIString());
+	PIScreenTypes::CellFormat format;
+	PIString prefix;
+	PIString suffix;
+	double maximum;
+	double value;
+protected:
+	void sizeHint(int & w, int & h) const;
+	void drawEvent(PIScreenDrawer * d);
+};
+
+
 #endif // PISCREENTILES_H
diff --git a/src/console/piscreentypes.h b/src/console/piscreentypes.h
index e5542559..858b5c6a 100644
--- a/src/console/piscreentypes.h
+++ b/src/console/piscreentypes.h
@@ -74,7 +74,9 @@ namespace PIScreenTypes {
 	enum FocusFlag {
 		CanHasFocus /** Tile can has focus */ = 0x1,
 		NextByTab /** Focus passed to next tile by tab key */ = 0x2,
-		NextByArrows /** Focus passed to next tile by arrow keys */ = 0x4
+		NextByArrowsHorizontal /** Focus passed to next tile by arrow keys left or right */ = 0x4,
+		NextByArrowsVertical /** Focus passed to next tile by arrow keys up or down */ = 0x8,
+		NextByArrowsAll /** Focus passed to next tile by any arrow key */ = NextByArrowsHorizontal | NextByArrowsVertical
 	};
 	
 	typedef PIFlags<CharFlag> CharFlags;
diff --git a/src/core/picli.h b/src/core/picli.h
index 305231fd..1872c907 100755
--- a/src/core/picli.h
+++ b/src/core/picli.h
@@ -27,7 +27,7 @@
 
 class PIP_EXPORT PICLI: public PIObject
 {
-	PIOBJECT(PICLI)
+	PIOBJECT_SUBCLASS(PICLI, PIObject)
 public:
 	
 	//! Constructor
diff --git a/src/core/piobject.cpp b/src/core/piobject.cpp
index 1da11ac1..c93bad88 100755
--- a/src/core/piobject.cpp
+++ b/src/core/piobject.cpp
@@ -290,6 +290,7 @@ void PIObject::piDisconnect(PIObject * src, const PIString & sig) {
 
 
 void PIObject::piDisconnect(PIObject * src) {
+	src->deleted();
 	PIMutexLocker _ml(src->mutex_connect);
 	PIVector<PIObject * > cv = src->connectors.toVector();
 	piForeach (PIObject * o, cv) {
diff --git a/src/core/piobject.h b/src/core/piobject.h
index fbe52d86..a441dc96 100755
--- a/src/core/piobject.h
+++ b/src/core/piobject.h
@@ -412,6 +412,7 @@ class PIP_EXPORT PIObject
 {
 	friend class PIObjectManager;
 	friend void dumpApplication();
+	typedef PIObject __PIObject__;
 public:
 	
 	//! Contructs PIObject with name "name"
@@ -689,7 +690,19 @@ protected:
 	virtual void propertyChanged(const PIString & name) {}
 	
 	
-	static const PIString __classNameS() {return PIString();} \
+	static const PIString __classNameS() {return PIString("PIObject");}
+	
+	EVENT(deleted)
+	
+//! \events
+//! \{
+
+	/** \fn void deleted()
+	 * \brief Raise before object delete
+	 * \note This event raised from destructor, so use only emitter() value,
+	 * don`t try to cast deleted object to some subclass! */
+
+//! \}
 
 private:
 	struct Connection {
diff --git a/src/core/pistatemachine.h b/src/core/pistatemachine.h
index 2eb7c707..6ab963f9 100755
--- a/src/core/pistatemachine.h
+++ b/src/core/pistatemachine.h
@@ -75,7 +75,7 @@
 template <typename Type = int>
 class PIP_EXPORT PIStateMachine: public PIObject
 {
-	PIOBJECT(PIStateMachine)
+	PIOBJECT_SUBCLASS(PIStateMachine, PIObject)
 public:
 	//! Constructs an empty state machine
 	PIStateMachine(void * _parent = 0) {if (_parent == 0) parent_ = this; else parent_ = _parent; resetConditions();}
diff --git a/src/io/pibasetransfer.h b/src/io/pibasetransfer.h
index 6b233c76..da99c416 100644
--- a/src/io/pibasetransfer.h
+++ b/src/io/pibasetransfer.h
@@ -4,9 +4,9 @@
 #include "picrc.h"
 #include "pitimer.h"
 
-class PIBaseTransfer : public PIObject
+class PIBaseTransfer: public PIObject
 {
-	PIOBJECT(PIBaseTransfer)
+	PIOBJECT_SUBCLASS(PIBaseTransfer, PIObject)
 public:
 	PIBaseTransfer();
 	~PIBaseTransfer();
diff --git a/src/io/piconnection.h b/src/io/piconnection.h
index e6424399..cf995c36 100755
--- a/src/io/piconnection.h
+++ b/src/io/piconnection.h
@@ -30,7 +30,7 @@ class PIConfig;
 
 class PIP_EXPORT PIConnection: public PIObject
 {
-	PIOBJECT(PIConnection)
+	PIOBJECT_SUBCLASS(PIConnection, PIObject)
 public:
 	
 	//! Constructs an empty connection
@@ -373,7 +373,7 @@ private:
 	};
 	
 	class Sender: public PITimer {
-		PIOBJECT(Sender)
+		PIOBJECT_SUBCLASS(Sender, PIObject)
 	public:
 		Sender(PIConnection * parent_ = 0): parent(parent_), int_(0.f) {needLockRun(true);}
 		~Sender() {stop();}
diff --git a/src/io/pidatatransfer.h b/src/io/pidatatransfer.h
index 1ec8cffd..2f8abd01 100644
--- a/src/io/pidatatransfer.h
+++ b/src/io/pidatatransfer.h
@@ -3,7 +3,7 @@
 
 #include "pibasetransfer.h"
 
-class PIDataTransfer : public PIBaseTransfer
+class PIDataTransfer: public PIBaseTransfer
 {
 	PIOBJECT_SUBCLASS(PIDataTransfer, PIBaseTransfer)
 public:
@@ -11,12 +11,13 @@ public:
 	~PIDataTransfer() {;}
 	
 	bool send(const PIByteArray &ba);
-	const PIByteArray &data() {return data_;}
+	const PIByteArray & data() {return data_;}
 	
 private:
-    virtual PIByteArray buildPacket(Part p);
-    virtual void receivePart(PIBaseTransfer::Part fi, PIByteArray ba, PIByteArray pheader);
+	virtual PIByteArray buildPacket(Part p);
+	virtual void receivePart(PIBaseTransfer::Part fi, PIByteArray ba, PIByteArray pheader);
 	PIByteArray data_;
+	
 };
 
 
diff --git a/src/io/piethernet.cpp b/src/io/piethernet.cpp
index b3349a87..37125d33 100755
--- a/src/io/piethernet.cpp
+++ b/src/io/piethernet.cpp
@@ -613,6 +613,14 @@ int PIEthernet::write(const void * data, int max_size) {
 	return -1;
 }
 
+
+void PIEthernet::clientDeleted() {
+	clients_mutex.lock();
+	clients_.removeOne((PIEthernet*)emitter());
+	clients_mutex.unlock();
+}
+
+
 void PIEthernet::server_func(void * eth) {
 	PIEthernet * ce = (PIEthernet * )eth;
 	if (ce->listen_threaded) {
@@ -628,14 +636,27 @@ void PIEthernet::server_func(void * eth) {
 	socklen_t slen = sizeof(client_addr);
 	int s = accept(ce->sock, (sockaddr * )&client_addr, &slen);
 	if (s == -1) {
+		int lerr = ethErrorCore();
+#ifdef WINDOWS
+		if (lerr == WSAETIMEDOUT) {
+#else
+		if (lerr == EAGAIN) {
+#endif
+			piMSleep(10);
+			return;
+		}
 		if (ce->debug()) piCout << "[PIEthernet] Can`t accept new connection, " << ethErrorString();
 		piMSleep(10);
 		return;
 	}
 	PIString ip(inet_ntoa(client_addr.sin_addr));
 	ip += ":" + PIString::fromNumber(htons(client_addr.sin_port));
-	ce->clients_ << new PIEthernet(s, ip);
-	ce->newConnection(ce->clients_.back());
+	PIEthernet * e = new PIEthernet(s, ip);
+	ce->clients_mutex.lock();
+	CONNECTU(e, deleted, ce, clientDeleted)
+	ce->clients_ << e;
+	ce->clients_mutex.unlock();
+	ce->newConnection(e);
 	//cout << "connected " << ip << endl;
 	//char d[256];
 	//cout << " recv " << recv(s, d, 256, 0) << endl;
diff --git a/src/io/piethernet.h b/src/io/piethernet.h
index 0839f90b..694870bb 100755
--- a/src/io/piethernet.h
+++ b/src/io/piethernet.h
@@ -396,11 +396,13 @@ protected:
 	bool connected_, connecting_, listen_threaded, server_bounded;
 	mutable PIString ip_, ip_s, ip_c, ip_r;
 	PIThread server_thread_;
+	PIMutex clients_mutex;
 	PIVector<PIEthernet * > clients_;
 	PIQueue<PIString> mcast_queue;
 	PIStringList mcast_groups;
 
 private:
+	EVENT_HANDLER(void, clientDeleted);
 	static void server_func(void * eth);
 	void setType(Type t, bool reopen = true) {setProperty("type", (int)t); if (reopen && isOpened()) {closeDevice(); init(); openDevice();}}
 
diff --git a/src/io/pipeer.h b/src/io/pipeer.h
index 90c17a9e..9c87d48a 100755
--- a/src/io/pipeer.h
+++ b/src/io/pipeer.h
@@ -28,7 +28,7 @@
 
 class PIP_EXPORT PIPeer: public PIObject
 {
-	PIOBJECT(PIPeer)
+	PIOBJECT_SUBCLASS(PIPeer, PIObject)
 private:
 	struct PeerData {
 		PeerData() {msg_count = msg_rec = 0;}
diff --git a/src/io/piprotocol.h b/src/io/piprotocol.h
index 82b7dd47..31966036 100755
--- a/src/io/piprotocol.h
+++ b/src/io/piprotocol.h
@@ -35,7 +35,7 @@ class PIProtocol;
 
 class PIP_EXPORT PIMultiProtocolBase: protected PIObject
 {
-	PIOBJECT(PIMultiProtocolBase)
+	PIOBJECT_SUBCLASS(PIMultiProtocolBase, PIObject)
 	friend class PIProtocol;
 public:
 	PIMultiProtocolBase() {;}
@@ -72,7 +72,7 @@ typedef void (*ReceiveFunc)(void * );
 /// void send(const void * data, int size, bool direct = false)
 class PIP_EXPORT PIProtocol: public PIObject
 {
-	PIOBJECT(PIProtocol)
+	PIOBJECT_SUBCLASS(PIProtocol, PIObject)
 	friend class PIMultiProtocolBase;
 	friend class PIMultiProtocol;
 	enum Type {None, Serial, Ethernet};
diff --git a/src/thread/pithread.h b/src/thread/pithread.h
index c0acf756..9a2cddc5 100755
--- a/src/thread/pithread.h
+++ b/src/thread/pithread.h
@@ -33,7 +33,7 @@ typedef void (*ThreadFunc)(void * );
 
 class PIP_EXPORT PIThread: public PIObject
 {
-	PIOBJECT(PIThread)
+	PIOBJECT_SUBCLASS(PIThread, PIObject)
 public:
 	
 	//! Contructs thread with custom data "data", external function "func" and main loop delay "loop_delay".
diff --git a/src/thread/pitimer.h b/src/thread/pitimer.h
index 6a4512e6..a0a07dcb 100755
--- a/src/thread/pitimer.h
+++ b/src/thread/pitimer.h
@@ -130,7 +130,7 @@ private:
 
 
 class PITimer: public PIObject {
-	PIOBJECT(PITimer)
+	PIOBJECT_SUBCLASS(PITimer, PIObject)
 public:
 	
 	//! \brief Constructs timer with PITimer::Thread implementation