diff --git a/README.md b/README.md
index 53462a8..962f9ac 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ Remote Desktop Protocol in Twisted Python
 ## Requirements
 * python2.7
 * python-twisted
+* python-openssl
 
 ## Requirements for examples
 * python-qt4
@@ -15,5 +16,6 @@ Remote Desktop Protocol in Twisted Python
 * Packet redirection
 * License
 * Most common orders
+* FastPath messages
 
 this project is still in progress.
diff --git a/rdpy/display/qt.py b/rdpy/display/qt.py
index 3e60b7e..5e0f525 100644
--- a/rdpy/display/qt.py
+++ b/rdpy/display/qt.py
@@ -61,8 +61,11 @@ class RFBClientQt(RFBClientObserver, QAdaptor):
     QAdaptor for specific RFB protocol stack
     is to an RFB observer 
     '''    
-    def __init__(self):
-        RFBClientObserver.__init__(self)
+    def __init__(self, controller):
+        """
+        @param controller: controller for obser
+        """
+        RFBClientObserver.__init__(self, controller)
         self._widget = QRemoteDesktop(self)
         
     def getWidget(self):
@@ -118,8 +121,11 @@ class RDPClientQt(RDPClientObserver, QAdaptor):
     '''
     Adaptor for RDP client
     '''
-    def __init__(self):
-        RDPClientObserver.__init__(self)
+    def __init__(self, controller):
+        """
+        @param controller: RDP controller
+        """
+        RDPClientObserver.__init__(self, controller)
         self._widget = QRemoteDesktop(self)
         
     def getWidget(self):
diff --git a/rdpy/examples/rdpclient.py b/rdpy/examples/rdpclient.py
index e28e0ac..909875f 100644
--- a/rdpy/examples/rdpclient.py
+++ b/rdpy/examples/rdpclient.py
@@ -31,16 +31,17 @@ from PyQt4 import QtGui
 from rdpy.display.qt import RDPClientQt
 from rdpy.protocol.rdp import rdp
 
-class RDPClientQtFactory(rdp.Factory):
-    '''
+class RDPClientQtFactory(rdp.ClientFactory):
+    """
     Factory create a RDP GUI client
-    '''
-    def buildObserver(self):
-        '''
-        build RFB observer
-        '''
+    """
+    def buildObserver(self, controller):
+        """
+        Build RFB observer
+        @param controller: build factory and needed by observer
+        """
         #create client observer
-        client = RDPClientQt()
+        client = RDPClientQt(controller)
         #create qt widget
         self._w = client.getWidget()
         self._w.resize(1024, 800)
@@ -52,21 +53,21 @@ class RDPClientQtFactory(rdp.Factory):
         pass
     
     def clientConnectionLost(self, connector, reason):
-        '''
-        connection lost event
+        """
+        Connection lost event
         @param connector: twisted connector use for rdp connection (use reconnect to restart connection)
         @param reason: str use to advertise reason of lost connection
-        '''
+        """
         QtGui.QMessageBox.warning(self._w, "Warning", "Lost connection : %s"%reason)
         reactor.stop()
         app.exit()
         
     def clientConnectionFailed(self, connector, reason):
-        '''
-        connection failed event
+        """
+        Connection failed event
         @param connector: twisted connector use for rdp connection (use reconnect to restart connection)
         @param reason: str use to advertise reason of lost connection
-        '''
+        """
         QtGui.QMessageBox.warning(self._w, "Warning", "Connection failed : %s"%reason)
         reactor.stop()
         app.exit()
diff --git a/rdpy/examples/vncclient.py b/rdpy/examples/vncclient.py
index 82436d3..544dd11 100644
--- a/rdpy/examples/vncclient.py
+++ b/rdpy/examples/vncclient.py
@@ -35,12 +35,13 @@ class RFBClientQtFactory(rfb.Factory):
     """
     Factory create a VNC GUI client
     """
-    def buildObserver(self):
+    def buildObserver(self, controller):
         """
         Build RFB Client observer
+        @param controller: build by factory
         """
         #create client observer
-        client = RFBClientQt()
+        client = RFBClientQt(controller)
         #create qt widget
         self._w = client.getWidget()
         self._w.resize(1024, 800)
diff --git a/rdpy/protocol/rdp/rdp.py b/rdpy/protocol/rdp/rdp.py
index 19cc108..7d21a2e 100644
--- a/rdpy/protocol/rdp/rdp.py
+++ b/rdpy/protocol/rdp/rdp.py
@@ -43,7 +43,7 @@ class RDPController(object):
             for rectangle in bitmapUpdateData.rectangles._array:
                 observer.onBitmapUpdate(rectangle.destLeft.value, rectangle.destTop.value, rectangle.destRight.value, rectangle.destBottom.value, rectangle.width.value, rectangle.height.value, rectangle.bitsPerPixel.value, (rectangle.flags & pdu.BitmapFlag.BITMAP_COMPRESSION).value, rectangle.bitmapDataStream.value)
 
-class Factory(protocol.Factory):
+class ClientFactory(protocol.Factory):
     '''
     Factory of Client RDP protocol
     '''
@@ -52,9 +52,11 @@ class Factory(protocol.Factory):
         Function call from twisted and build rdp protocol stack
         @param addr: destination address
         '''
-        return tpkt.TPKT(tpdu.createClient(mcs.createClient(self.buildObserver().getController())));
+        controller = RDPController(LayerMode.CLIENT)
+        self.buildObserver(controller)
+        return tpkt.TPKT(tpdu.createClient(mcs.createClient(controller)));
     
-    def buildObserver(self):
+    def buildObserver(self, controller):
         '''
         build observer use for connection
         '''
@@ -92,16 +94,13 @@ class RDPClientObserver(object):
     '''
     class use to inform all rdp event handle by RDPY
     '''
-    def __init__(self):
-        self._controller = RDPController(LayerMode.CLIENT)
+    def __init__(self, controller):
+        """
+        @param controller: RDP controller use to interact with protocol
+        """
+        self._controller = controller
         self._controller.addClientObserver(self)
         
-    def getController(self):
-        """
-        @return: RDP controller use by observer
-        """
-        return self._controller
-        
     def onBitmapUpdate(self, destLeft, destTop, destRight, destBottom, width, height, bitsPerPixel, isCompress, data):
         '''
         notify bitmap update
diff --git a/rdpy/protocol/rfb/rfb.py b/rdpy/protocol/rfb/rfb.py
index 930d7e6..c87ac7f 100644
--- a/rdpy/protocol/rfb/rfb.py
+++ b/rdpy/protocol/rfb/rfb.py
@@ -529,9 +529,11 @@ class Factory(protocol.Factory):
         Function call by twisted on connection
         @param addr: address where client try to connect
         """
-        return self.buildObserver().getController().getRFBLayer()
+        controller = RFBController(LayerMode.CLIENT)
+        self.buildObserver(controller)
+        return controller.getRFBLayer()
     
-    def buildObserver(self):
+    def buildObserver(self, controller):
         """
         Build an RFB observer object
         """
@@ -542,8 +544,8 @@ class RFBClientObserver(object):
     """
     RFB client protocol observer
     """
-    def __init__(self):
-        self._controller = RFBController(LayerMode.CLIENT)
+    def __init__(self, controller):
+        self._controller = controller
         self._controller.addClientObserver(self)
     
     def getController(self):