diff --git a/code/ryzom/tools/client/ryzom_installer/res/ryzom_installer.ini b/code/ryzom/tools/client/ryzom_installer/res/ryzom_installer.ini
index e18a58d19..feae1b62e 100644
--- a/code/ryzom/tools/client/ryzom_installer/res/ryzom_installer.ini
+++ b/code/ryzom/tools/client/ryzom_installer/res/ryzom_installer.ini
@@ -1,9 +1,9 @@
-version=3
+version=4
 
 [common]
 installation_directory=
 installer_filename_windows=ryzom_installer_qt_r.exe
-installer_filename_osx=RyzomInstaller.app/Contents/MacOS/RyzomInstaller
+installer_filename_osx="Ryzom Installer.app/Contents/MacOS/Ryzom Installer"
 installer_filename_linux=ryzom_installer_qt
 
 [product]
diff --git a/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp b/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp
index 839c85272..b09fa4e44 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp
@@ -106,22 +106,25 @@ bool CConfigFile::load(const QString &filename)
 		m_productHelpUrl = settings.value("url_help").toString();
 		m_productComments = settings.value("comments").toString();
 		settings.endGroup();
+	}
 
-		settings.beginGroup("servers");
-		int serversCount = settings.value("size").toInt();
-		m_defaultServerIndex = settings.value("default").toInt();
+	settings.beginGroup("servers");
+	int serversCount = settings.value("size").toInt();
+	m_defaultServerIndex = settings.value("default").toInt();
+	settings.endGroup();
+
+	// only resize if added servers in local ryzom_installer.ini
+	int oldServersCount = m_servers.size();
+
+	if (serversCount > oldServersCount) m_servers.resize(serversCount);
+
+	for (int i = oldServersCount; i < serversCount; ++i)
+	{
+		CServer &server = m_servers[i];
+
+		settings.beginGroup(QString("server_%1").arg(i));
+		server.loadFromSettings(settings);
 		settings.endGroup();
-
-		m_servers.resize(serversCount);
-
-		for (int i = 0; i < serversCount; ++i)
-		{
-			CServer &server = m_servers[i];
-
-			settings.beginGroup(QString("server_%1").arg(i));
-			server.loadFromSettings(settings);
-			settings.endGroup();
-		}
 	}
 
 	// custom choices, always keep them
@@ -492,11 +495,6 @@ QString CConfigFile::getParentDirectory()
 	return current.absolutePath();
 }
 
-QString CConfigFile::getApplicationDirectory()
-{
-	return QApplication::applicationDirPath();
-}
-
 QString CConfigFile::getOldInstallationDirectory()
 {
 	// HKEY_CURRENT_USER/SOFTWARE/Nevrax/RyzomInstall/InstallId=1917716796 (string)
@@ -757,7 +755,19 @@ QString CConfigFile::getInstallerCurrentFilePath() const
 QString CConfigFile::getInstallerCurrentDirPath() const
 {
 	// installer is always run from TEMP under Windows
-	return QApplication::applicationDirPath();
+	QString appDir = QApplication::applicationDirPath();
+
+#ifdef Q_OS_MAC
+	QDir dir(appDir);
+	dir.cdUp(); // .. = Contents
+	dir.cdUp(); // .. = .app
+	dir.cdUp(); // .. = <parent>
+
+	// return absolute path
+	appDir = dir.absolutePath();
+#endif
+
+	return appDir;
 }
 
 QString CConfigFile::getInstallerInstalledFilePath() const
@@ -818,7 +828,7 @@ QStringList CConfigFile::getInstallerRequiredFiles() const
 #endif
 
 	// include current executable
-	files << QFileInfo(QApplication::applicationFilePath()).fileName();
+	files << QFileInfo(getInstallerCurrentFilePath()).fileName();
 #elif defined(Q_OS_MAC)
 	// everything is in a directory
 	files << "Ryzom Installer.app";
@@ -827,7 +837,7 @@ QStringList CConfigFile::getInstallerRequiredFiles() const
 	files << "ryzom_installer.png";
 
 	// include current executable
-	files << QFileInfo(QApplication::applicationFilePath()).fileName();
+	files << QFileInfo(getInstallerCurrentFilePath()).fileName();
 #endif
 
 	return files;
@@ -875,7 +885,7 @@ OperationStep CConfigFile::getInstallNextStep() const
 		if (!isRyzomInstalledIn(currentDirectory))
 		{
 			// Ryzom is in the same directory as Ryzom Installer
-			currentDirectory = getApplicationDirectory();
+			currentDirectory = getInstallerCurrentDirPath();
 
 			if (!isRyzomInstalledIn(currentDirectory))
 			{
@@ -972,8 +982,8 @@ OperationStep CConfigFile::getInstallNextStep() const
 		// current installer older, launch the more recent installer
 		case -1: return LaunchInstalledInstaller;
 
-		// continue only if 0
-		default: break;
+		// continue only if 0 and launched Installer is the installed one
+		default: if (getInstallerCurrentDirPath() != getInstallerInstalledFilePath() && QFile::exists(getInstallerInstalledFilePath())) return LaunchInstalledInstaller;
 	}
 
 	// no default profile
diff --git a/code/ryzom/tools/client/ryzom_installer/src/configfile.h b/code/ryzom/tools/client/ryzom_installer/src/configfile.h
index a7b2a8919..1f71ad56b 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/configfile.h
+++ b/code/ryzom/tools/client/ryzom_installer/src/configfile.h
@@ -90,7 +90,6 @@ public:
 	// default directories
 	static QString getCurrentDirectory();
 	static QString getParentDirectory();
-	static QString getApplicationDirectory();
 	static QString getOldInstallationDirectory();
 	static QString getNewInstallationDirectory();
 	static QString getOldInstallationLanguage();
diff --git a/code/ryzom/tools/client/ryzom_installer/src/filescopier.cpp b/code/ryzom/tools/client/ryzom_installer/src/filescopier.cpp
index 069de1283..470790d4a 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/filescopier.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/filescopier.cpp
@@ -63,71 +63,62 @@ bool CFilesCopier::exec()
 
 	FilesToCopy files;
 
+	// create the list of files to copy
 	CFilesCopier::getFilesList(files);
 
+	// copy them
 	return copyFiles(files);
 }
 
-void CFilesCopier::getFilesList(FilesToCopy &files)
+void CFilesCopier::getFile(const QFileInfo &fileInfo, const QDir &srcDir, FilesToCopy &files) const
 {
-	QDir dir(m_sourceDirectory);
+	// full path to file
+	QString fullPath = fileInfo.absoluteFilePath();
 
-	QFileInfoList entries = dir.entryInfoList(m_includeFilter);
+	// full path where to copy file
+	QString dstPath = m_destinationDirectory + "/" + srcDir.relativeFilePath(fullPath);
+
+	if (fileInfo.isDir())
+	{
+		// create directory
+		QDir().mkpath(dstPath);
+
+		QDir subDir(fullPath);
+
+		// get list of all files in directory
+		QFileInfoList entries = subDir.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot);
+
+		// proces seach file recursively
+		foreach(const QFileInfo &entry, entries)
+		{
+			getFile(entry, srcDir, files);
+		}
+	}
+	else
+	{
+		// add the file to list with all useful information
+		FileToCopy file;
+		file.filename = fileInfo.fileName();
+		file.src = fileInfo.filePath();
+		file.dst = dstPath;
+		file.size = fileInfo.size();
+		file.date = fileInfo.lastModified().toTime_t();
+		file.permissions = fileInfo.permissions();
+
+		files << file;
+	}
+}
+
+void CFilesCopier::getFilesList(FilesToCopy &files) const
+{
+	QDir srcDir(m_sourceDirectory);
+
+	// only copy all files from filter
+	QFileInfoList entries = srcDir.entryInfoList(m_includeFilter);
 
 	foreach(const QFileInfo &entry, entries)
 	{
-		QString fullPath = entry.absoluteFilePath();
-
-		QString dstPath = m_destinationDirectory + "/" + dir.relativeFilePath(fullPath);
-
-		if (entry.isDir())
-		{
-			QDir().mkpath(dstPath);
-
-			QDir subDir(fullPath);
-
-			QDirIterator it(subDir, QDirIterator::Subdirectories);
-
-			while (it.hasNext())
-			{
-				fullPath = it.next();
-
-				if (it.fileName().startsWith('.')) continue;
-
-				QFileInfo fileInfo = it.fileInfo();
-
-				dstPath = m_destinationDirectory + "/" + dir.relativeFilePath(fullPath);
-
-				if (fileInfo.isDir())
-				{
-					QDir().mkpath(dstPath);
-				}
-				else
-				{
-					FileToCopy file;
-					file.filename = it.fileName();
-					file.src = it.filePath();
-					file.dst = dstPath;
-					file.size = it.fileInfo().size();
-					file.date = it.fileInfo().lastModified().toTime_t();
-					file.permissions = it.fileInfo().permissions();
-
-					files << file;
-				}
-			}
-		}
-		else
-		{
-			FileToCopy file;
-			file.filename = entry.fileName();
-			file.src = entry.filePath();
-			file.dst = dstPath;
-			file.size = entry.size();
-			file.date = entry.lastModified().toTime_t();
-			file.permissions = entry.permissions();
-
-			files << file;
-		}
+		getFile(entry, srcDir, files);
 	}
 
 	// copy additional files
@@ -135,18 +126,7 @@ void CFilesCopier::getFilesList(FilesToCopy &files)
 	{
 		QFileInfo fileInfo(fullpath);
 
-		if (fileInfo.isFile())
-		{
-			FileToCopy file;
-			file.filename = fileInfo.fileName();
-			file.src = fileInfo.filePath();
-			file.dst = m_destinationDirectory + "/" + fileInfo.fileName();
-			file.size = fileInfo.size();
-			file.date = fileInfo.lastModified().toTime_t();
-			file.permissions = fileInfo.permissions();
-
-			files << file;
-		}
+		getFile(fileInfo, srcDir, files);
 	}
 }
 
@@ -186,7 +166,7 @@ bool CFilesCopier::copyFiles(const FilesToCopy &files)
 
 			if (!QFile::copy(file.src, file.dst))
 			{
-				if (m_listener) m_listener->operationFail(QApplication::tr("Unable to copy file %1").arg(file.src));
+				if (m_listener) m_listener->operationFail(QApplication::tr("Unable to copy file %1 to %2").arg(file.src).arg(file.dst));
 				return false;
 			}
 
diff --git a/code/ryzom/tools/client/ryzom_installer/src/filescopier.h b/code/ryzom/tools/client/ryzom_installer/src/filescopier.h
index 8b505fb68..f0f2651a8 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/filescopier.h
+++ b/code/ryzom/tools/client/ryzom_installer/src/filescopier.h
@@ -54,7 +54,9 @@ protected:
 
 	typedef QList<FileToCopy> FilesToCopy;
 
-	void getFilesList(FilesToCopy &files);
+	void getFile(const QFileInfo &info, const QDir &srcDir, FilesToCopy &files) const;
+	void getFilesList(FilesToCopy &files) const;
+
 	bool copyFiles(const FilesToCopy &files);
 
 	IOperationProgressListener *m_listener;
diff --git a/code/ryzom/tools/client/ryzom_installer/src/main.cpp b/code/ryzom/tools/client/ryzom_installer/src/main.cpp
index 9b587c0b2..5e0bea7a9 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/main.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/main.cpp
@@ -180,7 +180,7 @@ int main(int argc, char *argv[])
 		// copy installer and required files to TEMP directory
 		if (QDir().mkdir(tempPath) && copyInstallerFiles(config.getInstallerRequiredFiles(), tempPath))
 		{
-			QString tempFile = tempPath + "/" + QFileInfo(QApplication::applicationFilePath()).fileName();
+			QString tempFile = tempPath + "/" + QFileInfo(getInstallerCurrentFilePath()).fileName();
 
 			// launch copy in TEMP directory with same arguments
 			if (QProcess::startDetached(tempFile, QApplication::arguments())) return 0;
diff --git a/code/ryzom/tools/client/ryzom_installer/src/migratedialog.cpp b/code/ryzom/tools/client/ryzom_installer/src/migratedialog.cpp
index 2315d38ec..92c4da4e6 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/migratedialog.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/migratedialog.cpp
@@ -38,7 +38,7 @@ CMigrateDialog::CMigrateDialog():QDialog()
 	if (!CConfigFile::getInstance()->isRyzomInstalledIn(m_currentDirectory))
 	{
 		// Ryzom is in the same directory as Ryzom Installer
-		m_currentDirectory = CConfigFile::getInstance()->getApplicationDirectory();
+		m_currentDirectory = CConfigFile::getInstance()->getInstallerCurrentDirPath();
 
 		if (!CConfigFile::getInstance()->isRyzomInstalledIn(m_currentDirectory))
 		{
diff --git a/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp b/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp
index 25bbd9b17..702b445fe 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp
@@ -729,18 +729,28 @@ void COperationDialog::copyInstaller()
 
 	// rename old client to installer
 
-	QString oldInstallerFullPath = QApplication::applicationFilePath();
+	QString oldInstallerFullPath = config->getInstallerCurrentFilePath();
 	QString newInstallerFullPath = config->getInstallerInstalledFilePath();
 
 	if (!newInstallerFullPath.isEmpty())
 	{
+		QString srcDir = config->getSrcServerDirectory();
+
+		if (srcDir.isEmpty()) srcDir = config->getInstallerCurrentDirPath();
+
 		// always copy new installers
 		CFilesCopier copier(this);
 		copier.setIncludeFilter(config->getInstallerRequiredFiles());
+#ifdef Q_OS_WIN32
 		copier.addFile(oldInstallerFullPath);
-		copier.setSourceDirectory(config->getSrcServerDirectory().isEmpty() ? QApplication::applicationDirPath():config->getSrcServerDirectory());
+#endif
+		copier.setSourceDirectory(srcDir);
 		copier.setDestinationDirectory(config->getInstallationDirectory());
-		copier.exec();
+
+		if (!copier.exec()) return;
+
+#ifdef Q_OS_WIN32
+		// only happens under Windows in Debug or when migrating
 
 		// copied file
 		oldInstallerFullPath = config->getInstallationDirectory() + "/" + QFileInfo(oldInstallerFullPath).fileName();
@@ -754,6 +764,7 @@ void COperationDialog::copyInstaller()
 			// rename new installer with final name
 			QFile::rename(oldInstallerFullPath, newInstallerFullPath);
 		}
+#endif
 
 		// create menu directory if defined
 		QString path = config->getMenuDirectory();