diff --git a/Sources/NodeEngineTest/NodeEditorTest.cpp b/Sources/NodeEngineTest/NodeEditorTest.cpp
index d535717b..ac286bd4 100644
--- a/Sources/NodeEngineTest/NodeEditorTest.cpp
+++ b/Sources/NodeEngineTest/NodeEditorTest.cpp
@@ -20,7 +20,7 @@ TEST (NodeEditorNeedToSaveTest)
 	ASSERT (env.nodeEditor.NeedToSave ());
 	
 	MemoryOutputStream outputStream;
-	ASSERT (env.nodeEditor.Save (outputStream, nullptr));
+	ASSERT (env.nodeEditor.Save (outputStream));
 	ASSERT (!env.nodeEditor.NeedToSave ());
 	
 	env.nodeEditor.New ();
@@ -29,7 +29,7 @@ TEST (NodeEditorNeedToSaveTest)
 	ASSERT (env.nodeEditor.NeedToSave ());
 
 	MemoryInputStream inputStream (outputStream.GetBuffer ());
-	ASSERT (env.nodeEditor.Open (inputStream, nullptr));
+	ASSERT (env.nodeEditor.Open (inputStream));
 	ASSERT (!env.nodeEditor.NeedToSave ());	
 	env.nodeEditor.AddNode (UINodePtr (new IntegerUpDownNode (String (L"Integer"), Point (0.0, 0.0), 0, 1)));
 	ASSERT (env.nodeEditor.NeedToSave ());
diff --git a/Sources/NodeUIEngine/NUIE_NodeEditor.cpp b/Sources/NodeUIEngine/NUIE_NodeEditor.cpp
index d750f37e..c8b6d598 100644
--- a/Sources/NodeUIEngine/NUIE_NodeEditor.cpp
+++ b/Sources/NodeUIEngine/NUIE_NodeEditor.cpp
@@ -11,11 +11,6 @@ namespace NUIE
 
 static const std::string NodeEditorFileMarker = "NodeEditorFile";
 
-ExternalHeaderIO::~ExternalHeaderIO ()
-{
-
-}
-
 ExternalFileIO::~ExternalFileIO ()
 {
 
@@ -187,7 +182,7 @@ void NodeEditor::New ()
 	Update ();
 }
 
-bool NodeEditor::Open (const std::wstring& fileName, const ExternalFileIO* externalFileIO, const ExternalHeaderIO* externalHeader)
+bool NodeEditor::Open (const std::wstring& fileName, const ExternalFileIO* externalFileIO)
 {
 	std::vector<char> buffer;
 	if (DBGERROR (!externalFileIO->ReadBufferFromFile (fileName, buffer))) {
@@ -195,17 +190,11 @@ bool NodeEditor::Open (const std::wstring& fileName, const ExternalFileIO* exter
 	}
 
 	NE::MemoryInputStream inputStream (buffer);
-	return Open (inputStream, externalHeader);
+	return Open (inputStream);
 }
 
-bool NodeEditor::Open (NE::InputStream& inputStream, const ExternalHeaderIO* externalHeader)
+bool NodeEditor::Open (NE::InputStream& inputStream)
 {
-	if (externalHeader != nullptr) {
-		if (!externalHeader->Read (inputStream)) {
-			return false;
-		}
-	}
-
 	std::string fileMarker;
 	inputStream.Read (fileMarker);
 	if (fileMarker != NodeEditorFileMarker) {
@@ -226,10 +215,10 @@ bool NodeEditor::Open (NE::InputStream& inputStream, const ExternalHeaderIO* ext
 	return true;
 }
 
-bool NodeEditor::Save (const std::wstring& fileName, const ExternalFileIO* externalFileIO, const ExternalHeaderIO* externalHeader) const
+bool NodeEditor::Save (const std::wstring& fileName, const ExternalFileIO* externalFileIO) const
 {
 	NE::MemoryOutputStream outputStream;
-	if (DBGERROR (!Save (outputStream, externalHeader))) {
+	if (DBGERROR (!Save (outputStream))) {
 		return false;
 	}
 
@@ -241,12 +230,8 @@ bool NodeEditor::Save (const std::wstring& fileName, const ExternalFileIO* exter
 	return true;
 }
 
-bool NodeEditor::Save (NE::OutputStream& outputStream, const ExternalHeaderIO* externalHeader) const
+bool NodeEditor::Save (NE::OutputStream& outputStream) const
 {
-	if (externalHeader != nullptr) {
-		externalHeader->Write (outputStream);
-	}
-
 	const Version& currentVersion = GetCurrentVersion ();
 	outputStream.Write (NodeEditorFileMarker);
 	currentVersion.Write (outputStream);
diff --git a/Sources/NodeUIEngine/NUIE_NodeEditor.hpp b/Sources/NodeUIEngine/NUIE_NodeEditor.hpp
index 17db6d2d..e16675db 100644
--- a/Sources/NodeUIEngine/NUIE_NodeEditor.hpp
+++ b/Sources/NodeUIEngine/NUIE_NodeEditor.hpp
@@ -12,15 +12,6 @@
 namespace NUIE
 {
 
-class ExternalHeaderIO
-{
-public:
-	virtual ~ExternalHeaderIO ();
-
-	virtual bool	Read (NE::InputStream& inputStream) const = 0;
-	virtual void	Write (NE::OutputStream& outputStream) const = 0;
-};
-
 class ExternalFileIO
 {
 public:
@@ -72,10 +63,10 @@ class NodeEditor
 	void						SetSelectedNodes (const NE::NodeCollection& newSelectedNodes);
 
 	void						New ();
-	bool						Open (const std::wstring& fileName, const ExternalFileIO* externalFileIO, const ExternalHeaderIO* externalHeader);
-	bool						Open (NE::InputStream& inputStream, const ExternalHeaderIO* externalHeader);
-	bool						Save (const std::wstring& fileName, const ExternalFileIO* externalFileIO, const ExternalHeaderIO* externalHeader) const;
-	bool						Save (NE::OutputStream& outputStream, const ExternalHeaderIO* externalHeader) const;
+	bool						Open (const std::wstring& fileName, const ExternalFileIO* externalFileIO);
+	bool						Open (NE::InputStream& inputStream);
+	bool						Save (const std::wstring& fileName, const ExternalFileIO* externalFileIO) const;
+	bool						Save (NE::OutputStream& outputStream) const;
 	bool						NeedToSave () const;
 
 	void						SetSelectedNodesParameters ();