diff --git a/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin.h b/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin.h
index fc2e0736b..864028501 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin.h
@@ -105,6 +105,6 @@ public:
 
 }; //namespace ExtensionSystem
 
-Q_DECLARE_INTERFACE(ExtensionSystem::IPlugin, "dev.ryzom.com.ObjectViewerQt.IPlugin/0.9.1")
+Q_DECLARE_INTERFACE(ExtensionSystem::IPlugin, "dev.ryzom.com.ObjectViewerQt.IPlugin/0.9.2")
 
 #endif // IPLUGIN_H
diff --git a/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_manager.h b/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_manager.h
index 05d4b832c..e38748e77 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_manager.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_manager.h
@@ -98,7 +98,7 @@ public:
 	{
 		QList<QObject *> all = allObjects();
 		QObject *result = 0;
-		Q_FOREACH (QObject *qobj, all)
+		Q_FOREACH(QObject *qobj, all)
 		{
 			if (qobj->objectName() == name)
 			{
diff --git a/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_spec.h b/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_spec.h
index f0c62fec7..45895c36f 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_spec.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/extension_system/iplugin_spec.h
@@ -71,9 +71,13 @@ public:
 	virtual IPlugin *plugin() const = 0;
 
 	// state
-	virtual int getState() const = 0;
+	virtual int state() const = 0;
 	virtual bool hasError() const = 0;
 	virtual QString errorString() const = 0;
+
+	/// Enables/disables load this plugin after restart the program
+	virtual void setEnabled(bool enabled) = 0;
+	virtual bool isEnabled() const = 0;
 };
 
 } // namespace ExtensionSystem
diff --git a/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_manager.cpp b/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_manager.cpp
index be5f18c74..3b2431a07 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_manager.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_manager.cpp
@@ -34,6 +34,7 @@ CPluginManager::CPluginManager(QObject *parent)
 
 CPluginManager::~CPluginManager()
 {
+	writeSettings();
 	stopAll();
 	deleteAll();
 	qDeleteAll(m_pluginSpecs);
@@ -114,6 +115,7 @@ void CPluginManager::setPluginPaths(const QStringList &paths)
 {
 	m_pluginPaths = paths;
 	readPluginPaths();
+	readSettings();
 }
 
 QList<IPluginSpec *> CPluginManager::plugins() const
@@ -133,10 +135,41 @@ QSettings *CPluginManager::settings() const
 
 void CPluginManager::readSettings()
 {
+	if (m_settings)
+	{
+		QStringList blackList;
+		m_settings->beginGroup("PluginManager");
+		blackList = m_settings->value("BlackList").toStringList();
+		m_settings->endGroup();
+		Q_FOREACH (CPluginSpec *spec, m_pluginSpecs)
+		{
+			QString pluginName = spec->fileName();
+
+			if (blackList.contains(pluginName))
+			{
+				spec->setEnabled(false);
+				spec->setEnabledStartup(false);
+			}
+		}
+	}
 }
 
 void CPluginManager::writeSettings()
 {
+	if (m_settings)
+	{
+		QStringList blackList;
+		Q_FOREACH(CPluginSpec *spec, m_pluginSpecs)
+		{
+			nlinfo(spec->fileName().toStdString().c_str());
+			if (!spec->isEnabled())
+				blackList.push_back(spec->fileName());
+		}
+		m_settings->beginGroup("PluginManager");
+		m_settings->setValue("BlackList", blackList);
+		m_settings->endGroup();
+		m_settings->sync();
+	}
 }
 
 void CPluginManager::readPluginPaths()
@@ -176,7 +209,11 @@ void CPluginManager::readPluginPaths()
 
 void CPluginManager::setPluginState(CPluginSpec *spec, int destState)
 {
-	if (spec->hasError() || spec->getState() != destState-1)
+	if (spec->hasError() || spec->state() != destState-1)
+		return;
+
+	// plugin in black list
+	if (!spec->isEnabledStartup())
 		return;
 
 	switch (destState)
@@ -198,7 +235,7 @@ void CPluginManager::setPluginState(CPluginSpec *spec, int destState)
 	}
 	Q_FOREACH (const CPluginSpec *depSpec, spec->dependencySpecs())
 	{
-		if (depSpec->getState() != destState)
+		if (depSpec->state() != destState)
 		{
 			spec->m_hasError = true;
 			spec->m_errorString = tr("Cannot initializing plugin because dependency failed to load: %1\nReason: %2")
@@ -251,7 +288,7 @@ bool CPluginManager::loadQueue(CPluginSpec *spec, QList<CPluginSpec *> &queue,
 	}
 	circularityCheckQueue.append(spec);
 	// check if we have the dependencies
-	if (spec->getState() == State::Invalid || spec->getState() == State::Read)
+	if (spec->state() == State::Invalid || spec->state() == State::Read)
 	{
 		queue.append(spec);
 		return false;
diff --git a/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.cpp b/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.cpp
index d77d90962..6e15e1181 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.cpp
@@ -40,6 +40,8 @@ CPluginSpec::CPluginSpec()
 	  m_vendor(""),
 	  m_description(""),
 	  m_state(State::Invalid),
+	  m_enabled(true),
+	  m_enabledStartup(true),
 	  m_hasError(false),
 	  m_errorString(""),
 	  m_plugin(0),
@@ -82,12 +84,12 @@ QString CPluginSpec::fileName() const
 	return m_fileName;
 }
 
-IPlugin* CPluginSpec::plugin() const
+IPlugin *CPluginSpec::plugin() const
 {
 	return m_plugin;
 }
 
-int CPluginSpec::getState() const
+int CPluginSpec::state() const
 {
 	return m_state;
 }
@@ -124,6 +126,16 @@ bool CPluginSpec::setFileName(const QString &fileName)
 	return true;
 }
 
+void CPluginSpec::setEnabled(bool enabled)
+{
+	m_enabled = enabled;
+}
+
+bool CPluginSpec::isEnabled() const
+{
+	return m_enabled;
+}
+
 bool CPluginSpec::loadLibrary()
 {
 	if (m_hasError)
@@ -259,6 +271,16 @@ void CPluginSpec::kill()
 	m_state = State::Deleted;
 }
 
+void CPluginSpec::setEnabledStartup(bool enabled)
+{
+	m_enabledStartup = enabled;
+}
+
+bool CPluginSpec::isEnabledStartup() const
+{
+	return m_enabledStartup;
+}
+
 bool CPluginSpec::reportError(const QString &err)
 {
 	m_errorString = err;
diff --git a/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.h b/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.h
index 0cc895ada..5d9605de7 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/extension_system/plugin_spec.h
@@ -41,11 +41,15 @@ public:
 	virtual IPlugin *plugin() const;
 
 	// state
-	virtual int getState() const;
+	virtual int state() const;
 	virtual bool hasError() const;
 	virtual QString errorString() const;
 	QList<CPluginSpec *> dependencySpecs() const;
 
+	/// Enables/disables load this plugin after restart the program
+	virtual void setEnabled(bool enabled);
+	virtual bool isEnabled() const;
+
 private:
 	CPluginSpec();
 
@@ -57,6 +61,11 @@ private:
 	void stop();
 	void kill();
 
+	/// Enables/disables load this plugin on startup the program
+	/// Method is used for disabling startup plugin by pluginmanager
+	void setEnabledStartup(bool enabled);
+	bool isEnabledStartup() const;
+
 	bool reportError(const QString &err);
 
 	QString m_location;
@@ -69,6 +78,7 @@ private:
 	QString m_description;
 
 	int m_state;
+	bool m_enabled, m_enabledStartup;
 	bool m_hasError;
 	QString m_errorString;
 
diff --git a/code/nel/tools/3d/object_viewer_qt/src/main.cpp b/code/nel/tools/3d/object_viewer_qt/src/main.cpp
index 050b7716c..1ddcc5565 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/main.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/main.cpp
@@ -132,7 +132,7 @@ sint main(int argc, char **argv)
 
 	QSettings::setDefaultFormat(QSettings::IniFormat);
 	QSettings *settings = new QSettings(QSettings::IniFormat, QSettings::UserScope,
-										QLatin1String("RyzomCore"), QLatin1String(appNameC));
+	                                    QLatin1String("RyzomCore"), QLatin1String(appNameC));
 
 	QTranslator translator;
 	QTranslator qtTranslator;
@@ -162,17 +162,8 @@ sint main(int argc, char **argv)
 
 	splash->hide();
 
-	const QList<ExtensionSystem::IPluginSpec *> plugins = pluginManager.plugins();
-	ExtensionSystem::IPluginSpec *corePlugin = 0;
-	Q_FOREACH(ExtensionSystem::IPluginSpec *spec, plugins)
-	{
-		if (spec->name() == QLatin1String("Core"))
-		{
-			corePlugin = spec;
-			break;
-		}
-	}
-
+	ExtensionSystem::IPluginSpec *corePlugin = pluginManager.pluginByName("Core");
+	
 	if (!corePlugin)
 	{
 		QDir absolutePluginPaths(pluginPaths.join(QLatin1String(",")));
@@ -183,8 +174,8 @@ sint main(int argc, char **argv)
 		QString newPath = QFileDialog::getExistingDirectory(0, QCoreApplication::translate("Application", "Change the plugins path"), QDir::homePath());
 		bool ok;
 		QString text = QInputDialog::getText(0, QCoreApplication::translate("Application", "Enter the plugins path"),
-											 QCoreApplication::translate("Application", "Plugin path:"), QLineEdit::Normal,
-											 newPath, &ok);
+		                                     QCoreApplication::translate("Application", "Plugin path:"), QLineEdit::Normal,
+		                                     newPath, &ok);
 		if (ok && !text.isEmpty())
 			settings->setValue("PluginPath", text);
 		settings->sync();
@@ -203,7 +194,7 @@ sint main(int argc, char **argv)
 
 	if (!errors.isEmpty())
 		QMessageBox::warning(0, QCoreApplication::translate("Application", "Object Viewer Qt - Plugin loader messages"),
-							 errors.join(QString::fromLatin1("\n\n")));
+		                     errors.join(QString::fromLatin1("\n\n")));
 
 	int result = app.exec();
 	return result;
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/core_plugin.cpp b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/core_plugin.cpp
index 92e776068..8aef51f2a 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/core_plugin.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/core_plugin.cpp
@@ -37,6 +37,8 @@
 using namespace Core;
 
 CorePlugin::CorePlugin()
+	: m_plugMan(0),
+	  m_mainWindow(0)
 {
 }
 
@@ -49,7 +51,8 @@ CorePlugin::~CorePlugin()
 	qDeleteAll(m_autoReleaseObjects);
 	m_autoReleaseObjects.clear();
 
-	delete m_mainWindow;
+	if (m_mainWindow)
+		delete m_mainWindow;
 }
 
 bool CorePlugin::initialize(ExtensionSystem::IPluginManager *pluginManager, QString *errorString)
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.cpp b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.cpp
index caaeb4d5c..2105b8b1b 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.cpp
@@ -107,8 +107,8 @@ bool MainWindow::initialize(QString *errorString)
 void MainWindow::extensionsInitialized()
 {
 	readSettings();
-	connect(m_contextManager, SIGNAL(currentContextChanged(Core::IContext*)),
-			this, SLOT(updateContext(Core::IContext*)));
+	connect(m_contextManager, SIGNAL(currentContextChanged(Core::IContext *)),
+			this, SLOT(updateContext(Core::IContext *)));
 	if (m_contextManager->currentContext() != NULL)
 		updateContext(m_contextManager->currentContext());
 	show();
@@ -437,7 +437,7 @@ void MainWindow::createStatusBar()
 
 void MainWindow::createDialogs()
 {
-	m_pluginView = new ExtensionSystem::CPluginView(m_pluginManager, this);
+	m_pluginView = new PluginView(m_pluginManager, this);
 
 	// Create undo/redo command list
 	m_dockWidget = new QDockWidget("Command List", this);
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.h b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.h
index d594692ee..48ce93a15 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/main_window.h
@@ -93,7 +93,7 @@ private:
 	void writeSettings();
 
 	ExtensionSystem::IPluginManager *m_pluginManager;
-	ExtensionSystem::CPluginView *m_pluginView;
+	PluginView *m_pluginView;
 	MenuManager *m_menuManager;
 	ContextManager *m_contextManager;
 	CoreImpl *m_coreImpl;
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.cpp b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.cpp
index b45d46418..175902d39 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.cpp
@@ -16,11 +16,12 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "plugin_view_dialog.h"
+#include "core_constants.h"
+
+#include "nel/misc/debug.h"
 
 // Qt includes
 #include <QtCore/QDir>
-#include <QtCore/QString>
-#include <QtCore/QStringList>
 #include <QtGui/QIcon>
 #include <QtGui/QStyle>
 #include <QtGui/QTreeWidgetItem>
@@ -29,45 +30,79 @@
 #include "../../extension_system/iplugin_spec.h"
 #include "../../extension_system/iplugin_manager.h"
 
-namespace ExtensionSystem
+namespace Core
 {
 
-CPluginView::CPluginView(IPluginManager *pluginManager, QWidget *parent)
-	: QDialog(parent)
+PluginView::PluginView(ExtensionSystem::IPluginManager *pluginManager, QWidget *parent)
+	: QDialog(parent),
+	  m_checkStateColumn(0)
 {
-	_ui.setupUi(this);
-	_pluginManager = pluginManager;
+	m_ui.setupUi(this);
+	m_pluginManager = pluginManager;
 
-	connect(_pluginManager, SIGNAL(pluginsChanged()), this, SLOT(updateList()));
+	connect(m_pluginManager, SIGNAL(pluginsChanged()), this, SLOT(updateList()));
+	connect(this, SIGNAL(accepted()), this, SLOT(updateSettings()));
 
+	// WhiteList is list of plugins which can not disable.
+	m_whiteList << Constants::OVQT_CORE_PLUGIN;
 	updateList();
 }
 
-CPluginView::~CPluginView()
+PluginView::~PluginView()
 {
 }
 
-void CPluginView::updateList()
+void PluginView::updateList()
 {
 	static QIcon okIcon = QApplication::style()->standardIcon(QStyle::SP_DialogApplyButton);
 	static QIcon errorIcon = QApplication::style()->standardIcon(QStyle::SP_DialogCancelButton);
+	static QIcon notLoadedIcon = QApplication::style()->standardIcon(QStyle::SP_DialogResetButton);
+
+	m_specToItem.clear();
 
 	QList<QTreeWidgetItem *> items;
-	Q_FOREACH (IPluginSpec *spec, _pluginManager->plugins())
+	Q_FOREACH (ExtensionSystem::IPluginSpec *spec, m_pluginManager->plugins())
 	{
 		QTreeWidgetItem *item = new QTreeWidgetItem(QStringList()
-				<< ""
 				<< spec->name()
 				<< QString("%1").arg(spec->version())
 				<< spec->vendor()
 				<< QDir::toNativeSeparators(spec->filePath()));
-		item->setIcon(0, spec->hasError() ? errorIcon : okIcon);
+
+		bool ok = !spec->hasError();
+		QIcon icon = ok ? okIcon : errorIcon;
+		if (ok && (spec->state() != ExtensionSystem::State::Running))
+			icon = notLoadedIcon;
+
+		item->setIcon(m_checkStateColumn, icon);
+
+		if (!m_whiteList.contains(spec->name()))
+			item->setCheckState(m_checkStateColumn, spec->isEnabled() ? Qt::Checked : Qt::Unchecked);
+
 		items.append(item);
+		m_specToItem.insert(spec, item);
 	}
 
-	_ui.pluginTreeWidget->clear();
+	m_ui.pluginTreeWidget->clear();
 	if (!items.isEmpty())
-		_ui.pluginTreeWidget->addTopLevelItems(items);
+		m_ui.pluginTreeWidget->addTopLevelItems(items);
+
+	m_ui.pluginTreeWidget->resizeColumnToContents(m_checkStateColumn);
 }
 
-} /* namespace NLQT */
\ No newline at end of file
+void PluginView::updateSettings()
+{
+	Q_FOREACH (ExtensionSystem::IPluginSpec *spec, m_pluginManager->plugins())
+	{
+		if (m_specToItem.contains(spec) && (!m_whiteList.contains(spec->name())))
+		{
+			QTreeWidgetItem *item = m_specToItem.value(spec);
+			if (item->checkState(m_checkStateColumn) == Qt::Checked)
+				spec->setEnabled(true);
+			else
+				spec->setEnabled(false);
+		}
+	}
+}
+
+} /* namespace Core */
\ No newline at end of file
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.h b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.h
index 0f12b64a3..aae16749d 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.h
@@ -20,28 +20,39 @@
 
 #include "ui_plugin_view_dialog.h"
 
+#include <QtCore/QMap>
+#include <QtCore/QStringList>
+
 namespace ExtensionSystem
 {
-
 class IPluginManager;
+class IPluginSpec;
+}
 
-class CPluginView: public QDialog
+namespace Core
+{
+
+class PluginView: public QDialog
 {
 	Q_OBJECT
 
 public:
-	CPluginView(IPluginManager *pluginManager, QWidget *parent = 0);
-	~CPluginView();
+	PluginView(ExtensionSystem::IPluginManager *pluginManager, QWidget *parent = 0);
+	~PluginView();
 
 private Q_SLOTS:
 	void updateList();
+	void updateSettings();
 
 private:
 
-	IPluginManager *_pluginManager;
-	Ui::CPluginView _ui;
-}; /* class CPluginView */
+	const int m_checkStateColumn;
+	QMap<ExtensionSystem::IPluginSpec *, QTreeWidgetItem *> m_specToItem;
+	QStringList m_whiteList;
+	ExtensionSystem::IPluginManager *m_pluginManager;
+	Ui::PluginView m_ui;
+}; /* class PluginView */
 
-} /* namespace NLQT */
+} /* namespace Core */
 
 #endif // PLUGIN_VIEW_H
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.ui b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.ui
index 2fb0f568e..60a9b9c46 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.ui
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/core/plugin_view_dialog.ui
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>CPluginView</class>
- <widget class="QDialog" name="CPluginView">
+ <class>PluginView</class>
+ <widget class="QDialog" name="PluginView">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>691</width>
-    <height>249</height>
+    <width>756</width>
+    <height>296</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -37,14 +37,6 @@
      <property name="sortingEnabled">
       <bool>true</bool>
      </property>
-     <attribute name="headerDefaultSectionSize">
-      <number>100</number>
-     </attribute>
-     <column>
-      <property name="text">
-       <string>State</string>
-      </property>
-     </column>
      <column>
       <property name="text">
        <string>Name</string>
@@ -126,7 +118,7 @@
   <connection>
    <sender>closePushButton</sender>
    <signal>clicked()</signal>
-   <receiver>CPluginView</receiver>
+   <receiver>PluginView</receiver>
    <slot>accept()</slot>
    <hints>
     <hint type="sourcelabel">