diff --git a/code/nel/tools/pipeline/plugin_library/process_info.h b/code/nel/tools/pipeline/plugin_library/process_info.h
index 0495af92e..50a1fbef4 100644
--- a/code/nel/tools/pipeline/plugin_library/process_info.h
+++ b/code/nel/tools/pipeline/plugin_library/process_info.h
@@ -63,9 +63,9 @@ public:
 	/// A process handler is not allowed to depend on any files it does not list here.
 	
 	/// Must return all directories on which the process handler depends, these are NOT RECURSIVE.
-	virtual void getDependentDirectories(std::vector<std::string> &result) = 0;	
+	virtual void getDependentDirectories(std::vector<std::string> &resultAppend) = 0;	
 	/// Must return all files on which the process handler depends, ONLY if these are not in dependent directories.
-	virtual void getDependentFiles(std::vector<std::string> &result) = 0;
+	virtual void getDependentFiles(std::vector<std::string> &resultAppend) = 0;
 
 }; /* class IProcessInfo */
 
diff --git a/code/nel/tools/pipeline/service/database_status.cpp b/code/nel/tools/pipeline/service/database_status.cpp
index 50d1dcf0b..071813b55 100644
--- a/code/nel/tools/pipeline/service/database_status.cpp
+++ b/code/nel/tools/pipeline/service/database_status.cpp
@@ -251,17 +251,18 @@ public:
 
 IRunnable *CDatabaseStatus::updateFileStatus(const TFileStatusCallback &callback, const std::string &filePath)
 {
-#if defined(PIPELINE_MASTER)
+	if (!g_IsMaster)
+	{
+		nlerror("Not master, not allowed.");
+		return NULL;
+	}
+
 	CUpdateFileStatus *ufs = new CUpdateFileStatus();
 	ufs->StatusMutex = &m_StatusMutex;
 	ufs->FilePath = unMacroPath(filePath);
 	ufs->Callback = callback;
 	CAsyncFileManager::getInstance().addLoadTask(ufs);
 	return ufs;
-#else
-	nlerror("Not master, not allowed.");
-	return NULL;
-#endif
 }
 
 // ******************************************************************
@@ -386,6 +387,11 @@ void updateDirectoryStatus(CDatabaseStatus* ds, CDatabaseStatusUpdater &updater,
 
 void CDatabaseStatus::updateDatabaseStatus(const CCallback<void> &callback)
 {
+	if (!g_IsMaster)
+	{
+		nlerror("Not master, not allowed.");
+	}
+
 	std::vector<std::string> paths;
 	paths.push_back(g_DatabaseDirectory);
 	updateDatabaseStatus(callback, paths, false, true);
@@ -393,6 +399,11 @@ void CDatabaseStatus::updateDatabaseStatus(const CCallback<void> &callback)
 
 void CDatabaseStatus::updateDatabaseStatus(const CCallback<void> &callback, const std::vector<std::string> &paths, bool wait, bool recurse)
 {
+	if (!g_IsMaster)
+	{
+		nlerror("Not master, not allowed.");
+	}
+
 	CDatabaseStatusUpdater *updater = new CDatabaseStatusUpdater();
 	updater->Callback = callback;
 	updater->FilesRequested = 0;
diff --git a/code/nel/tools/pipeline/service/module_pipeline_master.cpp b/code/nel/tools/pipeline/service/module_pipeline_master.cpp
index a43f2e7d2..30de28ea5 100644
--- a/code/nel/tools/pipeline/service/module_pipeline_master.cpp
+++ b/code/nel/tools/pipeline/service/module_pipeline_master.cpp
@@ -37,6 +37,8 @@
 
 // Project includes
 #include "module_pipeline_slave_itf.h"
+#include "pipeline_service.h"
+#include "database_status.h"
 
 using namespace std;
 using namespace NLMISC;
@@ -57,12 +59,19 @@ class CModulePipelineMaster :
 	struct CSlave
 	{
 	public:
-		CSlave(IModuleProxy *moduleProxy) 
-			: Proxy(moduleProxy), 
-			  ActiveTaskId(0) { }
-
+		CSlave(CModulePipelineMaster *master, IModuleProxy *moduleProxy) 
+			: Master(master), 
+			Proxy(moduleProxy), 
+			ActiveTaskId(0) { }
+		CModulePipelineMaster *Master;
 		CModulePipelineSlaveProxy Proxy;
+		std::vector<std::string> Vector;
 		uint32 ActiveTaskId;
+
+		void cbUpdateDatabaseStatus()
+		{
+			
+		}
 	};
 	
 protected:
@@ -73,11 +82,13 @@ protected:
 public:
 	CModulePipelineMaster()
 	{
-
+		g_IsMaster = true;
 	}
 
 	virtual ~CModulePipelineMaster()
 	{
+		g_IsMaster = false;
+
 		m_SlavesMutex.lock();
 		
 		for (TSlaveMap::iterator it = m_Slaves.begin(), end = m_Slaves.end(); it != end; ++it)
@@ -104,7 +115,7 @@ public:
 			
 			m_SlavesMutex.lock();
 
-			CSlave *slave = new CSlave(moduleProxy);
+			CSlave *slave = new CSlave(this, moduleProxy);
 			m_Slaves[moduleProxy] = slave;
 
 			m_SlavesMutex.unlock();
@@ -149,6 +160,19 @@ public:
 		// TODO
 	}
 
+	virtual void vectorPushString(NLNET::IModuleProxy *sender, const std::string &str)
+	{
+		CSlave *slave = m_Slaves[sender];
+		slave->Vector.push_back(str);
+	}
+	 
+	virtual void updateDatabaseStatusByVector(NLNET::IModuleProxy *sender)
+	{
+		CSlave *slave = m_Slaves[sender];
+		g_DatabaseStatus->updateDatabaseStatus(CCallback<void>(slave, &CSlave::cbUpdateDatabaseStatus), slave->Vector, false, false);
+		slave->Vector.clear();
+	}
+
 }; /* class CModulePipelineMaster */
 
 void module_pipeline_master_forceLink() { }
diff --git a/code/nel/tools/pipeline/service/module_pipeline_master_itf.cpp b/code/nel/tools/pipeline/service/module_pipeline_master_itf.cpp
index 171c2ccf8..9da26b338 100644
Binary files a/code/nel/tools/pipeline/service/module_pipeline_master_itf.cpp and b/code/nel/tools/pipeline/service/module_pipeline_master_itf.cpp differ
diff --git a/code/nel/tools/pipeline/service/module_pipeline_master_itf.h b/code/nel/tools/pipeline/service/module_pipeline_master_itf.h
index 2e120f439..3f14d5c69 100644
Binary files a/code/nel/tools/pipeline/service/module_pipeline_master_itf.h and b/code/nel/tools/pipeline/service/module_pipeline_master_itf.h differ
diff --git a/code/nel/tools/pipeline/service/module_pipeline_master_itf.xml b/code/nel/tools/pipeline/service/module_pipeline_master_itf.xml
index 24162135c..8f8126c64 100644
--- a/code/nel/tools/pipeline/service/module_pipeline_master_itf.xml
+++ b/code/nel/tools/pipeline/service/module_pipeline_master_itf.xml
@@ -4,18 +4,28 @@
 
 		<module_interface name="CModulePipelineMaster">
 
-			<method name="slaveFinishedBuildTask" msg="SFBT">
+			<method name="slaveFinishedBuildTask" msg="RE_BT_OK">
 				<doc line=""/>
 
 				<param type="uint32"		name="taskId"	/>
 			</method>
 
-			<method name="slaveRefusedBuildTask" msg="SRBT">
+			<method name="slaveRefusedBuildTask" msg="RE_BT_FAIL">
 				<doc line=""/>
 
 				<param type="uint32"		name="taskId"	/>
 			</method>
 
+			<method name="vectorPushString" msg="VEC_PUSH_STR">
+				<doc line=""/>
+				
+				<param type="std::string"		name="str"		byref="true"/>
+			</method>
+
+			<method name="updateDatabaseStatusByVector" msg="UPD_DB_ST">
+				<doc line=""/>
+			</method>
+
 		</module_interface>
 
 	</namespace>
diff --git a/code/nel/tools/pipeline/service/module_pipeline_slave.cpp b/code/nel/tools/pipeline/service/module_pipeline_slave.cpp
index 5817d6ec4..09cc7a9ee 100644
--- a/code/nel/tools/pipeline/service/module_pipeline_slave.cpp
+++ b/code/nel/tools/pipeline/service/module_pipeline_slave.cpp
@@ -104,6 +104,11 @@ public:
 		CModulePipelineMasterProxy master(sender);
 		master.slaveRefusedBuildTask(this, taskId);
 	}
+
+	virtual void masterUpdatedDatabaseStatus(NLNET::IModuleProxy *sender)
+	{
+		
+	}
 	
 }; /* class CModulePipelineSlave */
 
diff --git a/code/nel/tools/pipeline/service/module_pipeline_slave_itf.cpp b/code/nel/tools/pipeline/service/module_pipeline_slave_itf.cpp
index e26d319d0..829328a04 100644
Binary files a/code/nel/tools/pipeline/service/module_pipeline_slave_itf.cpp and b/code/nel/tools/pipeline/service/module_pipeline_slave_itf.cpp differ
diff --git a/code/nel/tools/pipeline/service/module_pipeline_slave_itf.h b/code/nel/tools/pipeline/service/module_pipeline_slave_itf.h
index 6d031f5b2..05a534a5b 100644
Binary files a/code/nel/tools/pipeline/service/module_pipeline_slave_itf.h and b/code/nel/tools/pipeline/service/module_pipeline_slave_itf.h differ
diff --git a/code/nel/tools/pipeline/service/module_pipeline_slave_itf.xml b/code/nel/tools/pipeline/service/module_pipeline_slave_itf.xml
index a718e1078..987196f8e 100644
--- a/code/nel/tools/pipeline/service/module_pipeline_slave_itf.xml
+++ b/code/nel/tools/pipeline/service/module_pipeline_slave_itf.xml
@@ -4,7 +4,7 @@
 
 		<module_interface name="CModulePipelineSlave">
 
-			<method name="startBuildTask" msg="SBT">
+			<method name="startBuildTask" msg="GO_BT">
 				<doc line=""/>
 
 				<param type="uint32"			name="taskId"	/>
@@ -12,6 +12,10 @@
 				<param type="std::string"		name="processHandler"		byref="true"/>
 			</method>
 
+			<method name="masterUpdatedDatabaseStatus" msg="RE_UPD_DB_ST">
+				<doc line=""/>
+			</method>
+
 		</module_interface>
 
 	</namespace>
diff --git a/code/nel/tools/pipeline/service/pipeline_service.cpp b/code/nel/tools/pipeline/service/pipeline_service.cpp
index b1027842c..c7470bca3 100644
--- a/code/nel/tools/pipeline/service/pipeline_service.cpp
+++ b/code/nel/tools/pipeline/service/pipeline_service.cpp
@@ -65,9 +65,11 @@ namespace PIPELINE {
 std::string g_DatabaseDirectory;
 std::string g_PipelineDirectory;
 bool g_IsExiting = false;
+bool g_IsMaster = false;
 
 NLGEORGES::UFormLoader *g_FormLoader = NULL;
-CPipelineWorkspace *g_PipelineWorkspace;
+CPipelineWorkspace *g_PipelineWorkspace = NULL;
+CDatabaseStatus *g_DatabaseStatus = NULL;
 
 std::string unMacroPath(const std::string &path)
 {
@@ -112,7 +114,6 @@ enum EState
 
 /// Data
 CTaskManager *s_TaskManager = NULL;
-CDatabaseStatus *s_DatabaseStatus = NULL;
 CPipelineInterfaceImpl *s_PipelineInterfaceImpl = NULL;
 CPipelineProcessImpl *s_PipelineProcessImpl = NULL;
 
@@ -253,7 +254,7 @@ class CUpdateDatabaseStatus : public IRunnable
 
 	virtual void run()
 	{
-		s_DatabaseStatus->updateDatabaseStatus(CCallback<void>(this, &CUpdateDatabaseStatus::databaseStatusUpdated));
+		g_DatabaseStatus->updateDatabaseStatus(CCallback<void>(this, &CUpdateDatabaseStatus::databaseStatusUpdated));
 	}
 };
 CUpdateDatabaseStatus s_UpdateDatabaseStatus;
@@ -315,7 +316,7 @@ public:
 		
 		initSheets();
 
-		s_DatabaseStatus = new CDatabaseStatus();
+		g_DatabaseStatus = new CDatabaseStatus();
 
 		s_PipelineInterfaceImpl = new CPipelineInterfaceImpl();
 		s_PipelineProcessImpl = new CPipelineProcessImpl(NULL); // Create a singleton impl for global usage without running project for test purposes.
@@ -364,8 +365,8 @@ public:
 		delete s_PipelineInterfaceImpl;
 		s_PipelineInterfaceImpl = NULL;
 
-		delete s_DatabaseStatus;
-		s_DatabaseStatus = NULL;
+		delete g_DatabaseStatus;
+		g_DatabaseStatus = NULL;
 
 		releaseSheets();
 
diff --git a/code/nel/tools/pipeline/service/pipeline_service.h b/code/nel/tools/pipeline/service/pipeline_service.h
index 2d018132d..8e6f4e885 100644
--- a/code/nel/tools/pipeline/service/pipeline_service.h
+++ b/code/nel/tools/pipeline/service/pipeline_service.h
@@ -46,21 +46,12 @@ namespace NLGEORGES {
 
 namespace PIPELINE {
 	class CPipelineWorkspace;
-
-/*
-#if defined(PIPELINE_MASTER)
-#	if defined(PIPELINE_SLAVE)
-#		error Cannot define both PIPELINE_MASTER and PIPELINE_SLAVE at the same time.
-#	endif
-#elif defined (PIPELINE_SLAVE)
-#else
-#	error Must define either PIPELINE_MASTER or PIPELINE_SLAVE. Create 2 projects that output pipeline_service_master and pipeline_service_slave executables.
-#endif
-*/
+	class CDatabaseStatus;
 
 #define PIPELINE_MASTER
 
 extern bool g_IsExiting;
+extern bool g_IsMaster;
 
 extern std::string g_DatabaseDirectory;
 extern std::string g_PipelineDirectory;
@@ -81,6 +72,7 @@ void endedRunnableTask();
 
 extern NLGEORGES::UFormLoader *g_FormLoader;
 extern CPipelineWorkspace *g_PipelineWorkspace;
+extern CDatabaseStatus *g_DatabaseStatus;
 
 } /* namespace PIPELINE */