diff --git a/dev/skeletons/skeleton_class.class.php b/dev/skeletons/skeleton_class.class.php
index e05252885eb..efdc164246a 100644
--- a/dev/skeletons/skeleton_class.class.php
+++ b/dev/skeletons/skeleton_class.class.php
@@ -108,7 +108,7 @@ class Skeleton_class // extends CommonObject
 	            // want this action call a trigger.
 	            
 	            //// Call triggers
-	            //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            //$interface=new Interfaces($this->db);
 	            //$result=$interface->run_triggers('MYOBJECT_CREATE',$this,$user,$langs,$conf);
 	            //if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -217,7 +217,7 @@ class Skeleton_class // extends CommonObject
 	            // want this action call a trigger.
 				
 	            //// Call triggers
-	            //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            //$interface=new Interfaces($this->db);
 	            //$result=$interface->run_triggers('MYOBJECT_MODIFY',$this,$user,$langs,$conf);
 	            //if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -272,7 +272,7 @@ class Skeleton_class // extends CommonObject
 		        // want this action call a trigger.
 				
 		        //// Call triggers
-		        //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		        //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		        //$interface=new Interfaces($this->db);
 		        //$result=$interface->run_triggers('MYOBJECT_DELETE',$this,$user,$langs,$conf);
 		        //if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/adherents/class/adherent.class.php b/htdocs/adherents/class/adherent.class.php
index bf0b3f06400..88f6a3f6409 100644
--- a/htdocs/adherents/class/adherent.class.php
+++ b/htdocs/adherents/class/adherent.class.php
@@ -327,7 +327,7 @@ class Adherent extends CommonObject
 				if (! $notrigger)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('MEMBER_CREATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -545,7 +545,7 @@ class Adherent extends CommonObject
 					$this->use_webcal=($conf->global->PHPWEBCALENDAR_MEMBERSTATUS=='always'?1:0);
 
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('MEMBER_MODIFY',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -669,7 +669,7 @@ class Adherent extends CommonObject
 						$this->use_webcal=($conf->global->PHPWEBCALENDAR_MEMBERSTATUS=='always'?1:0);
 
 						// Appel des triggers
-						include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+						include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 						$interface=new Interfaces($this->db);
 						$result=$interface->run_triggers('MEMBER_DELETE',$this,$user,$langs,$conf);
 						if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -794,7 +794,7 @@ class Adherent extends CommonObject
 				if (! $error && ! $notrigger)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('MEMBER_NEW_PASSWORD',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1238,7 +1238,7 @@ class Adherent extends CommonObject
 				$this->use_webcal=($conf->global->PHPWEBCALENDAR_MEMBERSTATUS=='always'?1:0);
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('MEMBER_SUBSCRIPTION',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1293,7 +1293,7 @@ class Adherent extends CommonObject
 			$this->use_webcal=($conf->global->PHPWEBCALENDAR_MEMBERSTATUS=='always'?1:0);
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('MEMBER_VALIDATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1341,7 +1341,7 @@ class Adherent extends CommonObject
 			$this->use_webcal=($conf->global->PHPWEBCALENDAR_MEMBERSTATUS=='always'?1:0);
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('MEMBER_RESILIATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/admin/triggers.php b/htdocs/admin/triggers.php
index 60d663f891e..73e582de5c3 100644
--- a/htdocs/admin/triggers.php
+++ b/htdocs/admin/triggers.php
@@ -23,7 +23,7 @@
  */
 
 require("../main.inc.php");
-require_once(DOL_DOCUMENT_ROOT."/core/interfaces.class.php");
+require_once(DOL_DOCUMENT_ROOT."/core/class/interfaces.class.php");
 
 if (!$user->admin)
     accessforbidden();
diff --git a/htdocs/categories/class/categorie.class.php b/htdocs/categories/class/categorie.class.php
index 99a462afb9d..c243325e2b7 100644
--- a/htdocs/categories/class/categorie.class.php
+++ b/htdocs/categories/class/categorie.class.php
@@ -169,7 +169,7 @@ class Categorie
 				}
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('CATEGORY_CREATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -249,7 +249,7 @@ class Categorie
 			$this->db->commit();
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CATEGORY_MODIFY',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -303,7 +303,7 @@ class Categorie
 		else
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CATEGORY_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/comm/action/actioncomm.class.php b/htdocs/comm/action/actioncomm.class.php
index a33c783761a..fa910d70ac1 100644
--- a/htdocs/comm/action/actioncomm.class.php
+++ b/htdocs/comm/action/actioncomm.class.php
@@ -189,7 +189,7 @@ class ActionComm
             if (! $notrigger)
             {
 	            // Appel des triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('ACTION_CREATE',$this,$user,$langs,$conf);
                 if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/comm/propal.php b/htdocs/comm/propal.php
index 034282170cf..c5e93a8b7a6 100644
--- a/htdocs/comm/propal.php
+++ b/htdocs/comm/propal.php
@@ -550,7 +550,7 @@ if ($_POST['action'] == 'send' && ! $_POST['addfile'] && ! $_POST['removedfile']
 						$propal->propalrowid=$propal->id;
 
 						// Appel des triggers
-						include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+						include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 						$interface=new Interfaces($db);
 						$result=$interface->run_triggers('PROPAL_SENTBYMAIL',$propal,$user,$langs,$conf);
 						if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/comm/propal/propal.class.php b/htdocs/comm/propal/propal.class.php
index 46150f6912b..bf99bf2bee8 100644
--- a/htdocs/comm/propal/propal.class.php
+++ b/htdocs/comm/propal/propal.class.php
@@ -459,7 +459,7 @@ class Propal extends CommonObject
 				if (! $notrigger)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result = $interface->run_triggers('LINEPROPAL_UPDATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -665,7 +665,7 @@ class Propal extends CommonObject
 						if (! $notrigger)
 						{
 							// Appel des triggers
-							include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+							include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 							$interface=new Interfaces($this->db);
 							$result=$interface->run_triggers('PROPAL_CREATE',$this,$user,$langs,$conf);
 							if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -978,7 +978,7 @@ class Propal extends CommonObject
 				if (! $notrigger)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('PROPAL_VALIDATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1251,7 +1251,7 @@ class Propal extends CommonObject
 				$this->use_webcal=($conf->global->PHPWEBCALENDAR_PROPALSTATUS=='always'?1:0);
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('PROPAL_CLOSE_SIGNED',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1262,7 +1262,7 @@ class Propal extends CommonObject
 				$this->use_webcal=($conf->global->PHPWEBCALENDAR_PROPALSTATUS=='always'?1:0);
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('PROPAL_CLOSE_REFUSED',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1625,7 +1625,7 @@ class Propal extends CommonObject
 				if (! $notrigger)
 				{
 					// Call triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('PROPAL_DELETE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -2293,7 +2293,7 @@ class PropaleLigne
 			if (! $notrigger)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result = $interface->run_triggers('LINEPROPAL_INSERT',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index 4579652bf79..7a89ecff5f9 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -328,7 +328,7 @@ class Commande extends CommonObject
 		if (! $error)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('ORDER_VALIDATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -451,7 +451,7 @@ class Commande extends CommonObject
 				$this->use_webcal=($conf->global->PHPWEBCALENDAR_BILLSTATUS=='always'?1:0);
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('BILL_REOPEN',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -700,7 +700,7 @@ class Commande extends CommonObject
 					}
 
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('ORDER_CREATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1893,7 +1893,7 @@ class Commande extends CommonObject
 				$this->update_price();
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('LINEORDER_UPDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1987,7 +1987,7 @@ class Commande extends CommonObject
 		if ($err == 0)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('ORDER_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -2461,7 +2461,7 @@ class OrderLine
 		if ($resql)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('LINEORDER_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -2560,7 +2560,7 @@ class OrderLine
 			if (! $notrigger)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('LINEORDER_INSERT',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/commande/fiche.php b/htdocs/commande/fiche.php
index 63856363aa4..b2e5cdb0f3f 100644
--- a/htdocs/commande/fiche.php
+++ b/htdocs/commande/fiche.php
@@ -945,7 +945,7 @@ if ($_POST['action'] == 'send' && ! $_POST['addfile'] && ! $_POST['removedfile']
 						$commande->orderrowid=$commande->id;
 
 						// Appel des triggers
-						include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+						include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 						$interface=new Interfaces($db);
 						$result=$interface->run_triggers('ORDER_SENTBYMAIL',$commande,$user,$langs,$conf);
 						if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/compta/bank/class/bankcateg.class.php b/htdocs/compta/bank/class/bankcateg.class.php
index 7c178185532..635049278c9 100644
--- a/htdocs/compta/bank/class/bankcateg.class.php
+++ b/htdocs/compta/bank/class/bankcateg.class.php
@@ -103,7 +103,7 @@ class BankCateg // extends CommonObject
 	            // want this action call a trigger.
 	            
 	            //// Call triggers
-	            //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            //$interface=new Interfaces($this->db);
 	            //$result=$interface->run_triggers('MYOBJECT_CREATE',$this,$user,$langs,$conf);
 	            //if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -207,7 +207,7 @@ class BankCateg // extends CommonObject
 	            // want this action call a trigger.
 				
 	            //// Call triggers
-	            //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            //$interface=new Interfaces($this->db);
 	            //$result=$interface->run_triggers('MYOBJECT_MODIFY',$this,$user,$langs,$conf);
 	            //if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -263,7 +263,7 @@ class BankCateg // extends CommonObject
 		        // want this action call a trigger.
 				
 		        //// Call triggers
-		        //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		        //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		        //$interface=new Interfaces($this->db);
 		        //$result=$interface->run_triggers('MYOBJECT_DELETE',$this,$user,$langs,$conf);
 		        //if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/compta/facture.php b/htdocs/compta/facture.php
index 3815e157444..6444c759757 100644
--- a/htdocs/compta/facture.php
+++ b/htdocs/compta/facture.php
@@ -1364,7 +1364,7 @@ if (($_POST['action'] == 'send' || $_POST['action'] == 'relance') && ! $_POST['a
 						$fac->facid=$fac->id;
 
 						// Appel des triggers
-						include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+						include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 						$interface=new Interfaces($db);
 						$result=$interface->run_triggers('BILL_SENTBYMAIL',$fac,$user,$langs,$conf);
 						if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index d155614ce63..e2c47968d55 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -340,7 +340,7 @@ class Facture extends CommonObject
 				if ($result > 0)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('BILL_CREATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -832,7 +832,7 @@ class Facture extends CommonObject
 				// want this action call a trigger.
 
 				//// Call triggers
-				//include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				//include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				//$interface=new Interfaces($this->db);
 				//$result=$interface->run_triggers('MYOBJECT_MODIFY',$this,$user,$langs,$conf);
 				//if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1023,7 +1023,7 @@ class Facture extends CommonObject
 				if ($resql)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('BILL_DELETE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1205,7 +1205,7 @@ class Facture extends CommonObject
 			$this->use_webcal=($conf->global->PHPWEBCALENDAR_BILLSTATUS=='always'?1:0);
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('BILL_UNPAYED',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1267,7 +1267,7 @@ class Facture extends CommonObject
 				$this->use_webcal=($conf->global->PHPWEBCALENDAR_BILLSTATUS=='always'?1:0);
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('BILL_CANCEL',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1475,7 +1475,7 @@ class Facture extends CommonObject
 			if (! $error)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('BILL_VALIDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1848,7 +1848,7 @@ class Facture extends CommonObject
 		$result=$this->update_price();
 
 		// Appel des triggers
-		include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		$interface=new Interfaces($this->db);
 		$result = $interface->run_triggers('LINEBILL_DELETE',$this,$user,$langs,$conf);
 		if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -3084,7 +3084,7 @@ class FactureLigne
 			if (! $notrigger)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result = $interface->run_triggers('LINEBILL_INSERT',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -3153,7 +3153,7 @@ class FactureLigne
 			if (! $notrigger)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result = $interface->run_triggers('LINEBILL_UPDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/compta/paiement/class/paiement.class.php b/htdocs/compta/paiement/class/paiement.class.php
index 1635503dc21..1a12eb41a6b 100644
--- a/htdocs/compta/paiement/class/paiement.class.php
+++ b/htdocs/compta/paiement/class/paiement.class.php
@@ -180,7 +180,7 @@ class Paiement
 				if (! $error)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('PAYMENT_CUSTOMER_CREATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/compta/sociales/class/chargesociales.class.php b/htdocs/compta/sociales/class/chargesociales.class.php
index fc8a0bf0402..5b87f65bd2e 100644
--- a/htdocs/compta/sociales/class/chargesociales.class.php
+++ b/htdocs/compta/sociales/class/chargesociales.class.php
@@ -584,7 +584,7 @@ class PaiementCharge extends CommonObject
 	            // want this action call a trigger.
 
 	            //// Call triggers
-	            //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            //$interface=new Interfaces($this->db);
 	            //$result=$interface->run_triggers('MYOBJECT_MODIFY',$this,$user,$langs,$conf);
 	            //if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -639,7 +639,7 @@ class PaiementCharge extends CommonObject
 		        // want this action call a trigger.
 
 		        //// Call triggers
-		        //include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		        //include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		        //$interface=new Interfaces($this->db);
 		        //$result=$interface->run_triggers('MYOBJECT_DELETE',$this,$user,$langs,$conf);
 		        //if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/compta/tva/class/tva.class.php b/htdocs/compta/tva/class/tva.class.php
index acfb5f25d96..e18f17effaf 100644
--- a/htdocs/compta/tva/class/tva.class.php
+++ b/htdocs/compta/tva/class/tva.class.php
@@ -125,7 +125,7 @@ class Tva extends CommonObject
             $this->id = $this->db->last_insert_id(MAIN_DB_PREFIX."tva");
     
             // Appel des triggers
-            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
             $interface=new Interfaces($this->db);
             $result=$interface->run_triggers('MYOBJECT_CREATE',$this,$user,$langs,$conf);
             if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -193,7 +193,7 @@ class Tva extends CommonObject
 		if (! $notrigger)
 		{
             // Appel des triggers
-            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
             $interface=new Interfaces($this->db);
             $result=$interface->run_triggers('MYOBJECT_MODIFY',$this,$user,$langs,$conf);
             if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -291,7 +291,7 @@ class Tva extends CommonObject
 		}
 	
         // Appel des triggers
-        include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+        include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
         $interface=new Interfaces($this->db);
         $result=$interface->run_triggers('MYOBJECT_DELETE',$this,$user,$langs,$conf);
         if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/contact/class/contact.class.php b/htdocs/contact/class/contact.class.php
index 3ab0c667e68..3ab6428336b 100644
--- a/htdocs/contact/class/contact.class.php
+++ b/htdocs/contact/class/contact.class.php
@@ -120,7 +120,7 @@ class Contact extends CommonObject
 			}
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTACT_CREATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -193,7 +193,7 @@ class Contact extends CommonObject
 			if (! $error && ! $notrigger)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('CONTACT_MODIFY',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -628,7 +628,7 @@ class Contact extends CommonObject
 		if (! $error && ! $notrigger)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTACT_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 385af90c3c3..5a19e9e96db 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -116,7 +116,7 @@ class Contrat extends CommonObject
 		if ($resql)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTRACT_SERVICE_ACTIVATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -161,7 +161,7 @@ class Contrat extends CommonObject
 		if ($resql)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTRACT_SERVICE_CLOSE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -247,7 +247,7 @@ class Contrat extends CommonObject
 			$this->use_webcal=($conf->global->PHPWEBCALENDAR_CONTRACTSTATUS=='always'?1:0);
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTRACT_VALIDATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -570,7 +570,7 @@ class Contrat extends CommonObject
 			if (! $error)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('CONTRACT_CREATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -747,7 +747,7 @@ class Contrat extends CommonObject
 		if (! $error)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTRACT_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -996,7 +996,7 @@ class Contrat extends CommonObject
 			}
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('CONTRACTLINE_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1768,7 +1768,7 @@ class ContratLigne
 		if (! $notrigger)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('MYOBJECT_MODIFY',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/core/interfaces.class.php b/htdocs/core/class/interfaces.class.php
similarity index 100%
rename from htdocs/core/interfaces.class.php
rename to htdocs/core/class/interfaces.class.php
diff --git a/htdocs/ecm/ecmdirectory.class.php b/htdocs/ecm/ecmdirectory.class.php
index 27b2aa4558f..8b27d1018bf 100644
--- a/htdocs/ecm/ecmdirectory.class.php
+++ b/htdocs/ecm/ecmdirectory.class.php
@@ -147,7 +147,7 @@ class EcmDirectory // extends CommonObject
 				$result=create_exdir($dir);
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('MYECMDIR_CREATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -215,7 +215,7 @@ class EcmDirectory // extends CommonObject
 		if (! $error && ! $notrigger)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('MYECMDIR_MODIFY',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -361,7 +361,7 @@ class EcmDirectory // extends CommonObject
 		if (! $error)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('MYECMDIR_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/expedition/expedition.class.php b/htdocs/expedition/expedition.class.php
index 1684af01d90..99d76763d50 100644
--- a/htdocs/expedition/expedition.class.php
+++ b/htdocs/expedition/expedition.class.php
@@ -447,7 +447,7 @@ class Expedition extends CommonObject
 		if (! $error)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('ORDER_SHIPPING',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/exports/export.class.php b/htdocs/exports/export.class.php
index f3a70a53f68..afa1ea2a948 100644
--- a/htdocs/exports/export.class.php
+++ b/htdocs/exports/export.class.php
@@ -401,7 +401,7 @@ class Export
 				// want this action call a trigger.
 
 				//// Call triggers
-				//include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				//include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				//$interface=new Interfaces($this->db);
 				//$result=$interface->run_triggers('MYOBJECT_DELETE',$this,$user,$langs,$conf);
 				//if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/fichinter/fichinter.class.php b/htdocs/fichinter/fichinter.class.php
index 6e5aca12a11..65d4f271108 100644
--- a/htdocs/fichinter/fichinter.class.php
+++ b/htdocs/fichinter/fichinter.class.php
@@ -287,7 +287,7 @@ class Fichinter extends CommonObject
 			if ($resql)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('FICHEINTER_VALIDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/fourn/facture/paiementfourn.class.php b/htdocs/fourn/facture/paiementfourn.class.php
index dbfc4e44530..33a381d56b5 100644
--- a/htdocs/fourn/facture/paiementfourn.class.php
+++ b/htdocs/fourn/facture/paiementfourn.class.php
@@ -175,7 +175,7 @@ class PaiementFourn
 				if (! $error)
 				{
 		            // Appel des triggers
-		            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		            $interface=new Interfaces($this->db);
 		            $result=$interface->run_triggers('PAYMENT_SUPPLIER_CREATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/fourn/fournisseur.commande.class.php b/htdocs/fourn/fournisseur.commande.class.php
index fabb59e3bc8..c44586b095c 100644
--- a/htdocs/fourn/fournisseur.commande.class.php
+++ b/htdocs/fourn/fournisseur.commande.class.php
@@ -303,7 +303,7 @@ class CommandeFournisseur extends Commande
 			if (! $error)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('ORDER_SUPPLIER_VALIDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -357,7 +357,7 @@ class CommandeFournisseur extends Commande
 				$this->log($user, $statut, time());
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('ORDER_SUPPLIER_VALIDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -585,7 +585,7 @@ class CommandeFournisseur extends Commande
 				if ($error == 0)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('ORDER_SUPPLIER_APPROVE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -643,7 +643,7 @@ class CommandeFournisseur extends Commande
 				if ($error == 0)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('ORDER_SUPPLIER_REFUSE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -745,7 +745,7 @@ class CommandeFournisseur extends Commande
 				$this->log($user, 0, time());
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('ORDER_SUPPLIER_CREATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1057,7 +1057,7 @@ class CommandeFournisseur extends Commande
 		if ($err == 0)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('ORDER_SUPPLIER_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/fourn/fournisseur.facture.class.php b/htdocs/fourn/fournisseur.facture.class.php
index bfee057abbb..a17168fe89b 100644
--- a/htdocs/fourn/fournisseur.facture.class.php
+++ b/htdocs/fourn/fournisseur.facture.class.php
@@ -183,7 +183,7 @@ class FactureFournisseur extends Facture
 			if ($result > 0)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('BILL_SUPPLIER_CREATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -481,7 +481,7 @@ class FactureFournisseur extends Facture
 			$this->use_webcal=($conf->global->PHPWEBCALENDAR_BILLSTATUS=='always'?1:0);
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('BILL_SUPPLIER_PAYED',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -533,7 +533,7 @@ class FactureFournisseur extends Facture
 			$this->use_webcal=($conf->global->PHPWEBCALENDAR_BILLSTATUS=='always'?1:0);
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('BILL_SUPPLIER_UNPAYED',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -607,7 +607,7 @@ class FactureFournisseur extends Facture
 			if ($error == 0)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('BILL_SUPPLIER_VALIDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/imports/import.class.php b/htdocs/imports/import.class.php
index 90b1e8f37e5..defe730cdec 100644
--- a/htdocs/imports/import.class.php
+++ b/htdocs/imports/import.class.php
@@ -313,7 +313,7 @@ class Import
 				// want this action call a trigger.
 
 				//// Call triggers
-				//include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				//include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				//$interface=new Interfaces($this->db);
 				//$result=$interface->run_triggers('MYOBJECT_DELETE',$this,$user,$langs,$conf);
 				//if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 180e9f26c71..4728a231b97 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -324,7 +324,7 @@ if (! defined('NOLOGIN'))
 				$test=false;
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($db);
 				$result=$interface->run_triggers('USER_LOGIN_FAILED',$user,$user,$langs,$conf,$_POST["entity"]);
 				if ($result < 0) { $error++; }
@@ -382,7 +382,7 @@ if (! defined('NOLOGIN'))
 				$_SESSION["dol_loginmesg"]=$langs->trans("ErrorBadLoginPassword");
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($db);
 				$result=$interface->run_triggers('USER_LOGIN_FAILED',$user,$user,$langs,$conf,$_POST["entity"]);
 				if ($result < 0) { $error++; }
@@ -422,7 +422,7 @@ if (! defined('NOLOGIN'))
 			}
 
 			// Call triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($db);
 			$result=$interface->run_triggers('USER_LOGIN_FAILED',$user,$user,$langs,$conf,$_POST["entity"]);
 			if ($result < 0) { $error++; }
@@ -462,7 +462,7 @@ if (! defined('NOLOGIN'))
 			}
 
 			// Call triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($db);
 			$result=$interface->run_triggers('USER_LOGIN_FAILED',$user,$user,$langs,$conf,(isset($_POST["entity"])?$_POST["entity"]:0));
 			if ($result < 0) { $error++; }
@@ -490,7 +490,7 @@ if (! defined('NOLOGIN'))
 		$user->update_last_login_date();
 
 		// Call triggers
-		include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		$interface=new Interfaces($db);
 		$result=$interface->run_triggers('USER_LOGIN',$user,$user,$langs,$conf,$_POST["entity"]);
 		if ($result < 0) { $error++; }
diff --git a/htdocs/product/product.class.php b/htdocs/product/product.class.php
index 276ae689129..3542269eb0d 100644
--- a/htdocs/product/product.class.php
+++ b/htdocs/product/product.class.php
@@ -557,7 +557,7 @@ class Product extends CommonObject
 				}
 
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('PRODUCT_DELETE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/projet/project.class.php b/htdocs/projet/project.class.php
index da10f20c433..334aa357a7a 100644
--- a/htdocs/projet/project.class.php
+++ b/htdocs/projet/project.class.php
@@ -118,7 +118,7 @@ class Project extends CommonObject
 			if (! $notrigger)
 			{
 	            // Call triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('PROJECT_CREATE',$this,$user,$langs,$conf);
 	            if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -170,7 +170,7 @@ class Project extends CommonObject
 				if (! $notrigger)
 				{
 					// Call triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('PROJECT_MODIFY',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -395,7 +395,7 @@ class Project extends CommonObject
 			if (! $notrigger)
 			{
 	            // Call triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('PROJECT_DELETE',$this,$user,$langs,$conf);
 	            if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -438,7 +438,7 @@ class Project extends CommonObject
 			if ($resql)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('PROJECT_VALIDATE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -491,7 +491,7 @@ class Project extends CommonObject
 			if ($resql)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('PROJECT_CLOSE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/projet/tasks/task.class.php b/htdocs/projet/tasks/task.class.php
index 88aafd8c8d9..b69d494c935 100644
--- a/htdocs/projet/tasks/task.class.php
+++ b/htdocs/projet/tasks/task.class.php
@@ -133,7 +133,7 @@ class Task extends CommonObject
 			if (! $notrigger)
 			{
 	            // Call triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('TASK_CREATE',$this,$user,$langs,$conf);
 	            if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -272,7 +272,7 @@ class Task extends CommonObject
 			if (! $notrigger)
 			{
 	            // Call triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('TASK_MODIFY',$this,$user,$langs,$conf);
 	            if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -333,7 +333,7 @@ class Task extends CommonObject
 			if (! $notrigger)
 			{
 		        // Call triggers
-		        include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		        include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		        $interface=new Interfaces($this->db);
 		        $result=$interface->run_triggers('TASK_DELETE',$this,$user,$langs,$conf);
 		        if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -650,7 +650,7 @@ class Task extends CommonObject
 			if (! $notrigger)
 			{
 	            // Call triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('TASK_TIMESPENT_CREATE',$this,$user,$langs,$conf);
 	            if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -754,7 +754,7 @@ class Task extends CommonObject
 			if (! $notrigger)
 			{
 	            // Call triggers
-	            include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+	            include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 	            $interface=new Interfaces($this->db);
 	            $result=$interface->run_triggers('TASK_TIMESPENT_MODIFY',$this,$user,$langs,$conf);
 	            if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -815,7 +815,7 @@ class Task extends CommonObject
 			if (! $notrigger)
 			{
 		        // Call triggers
-		        include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+		        include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 		        $interface=new Interfaces($this->db);
 		        $result=$interface->run_triggers('TASK_TIMESPENT_DELETE',$this,$user,$langs,$conf);
 		        if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/societe/societe.class.php b/htdocs/societe/societe.class.php
index 53098751bcd..721772052fe 100644
--- a/htdocs/societe/societe.class.php
+++ b/htdocs/societe/societe.class.php
@@ -216,7 +216,7 @@ class Societe extends CommonObject
 					$this->use_webcal=($conf->global->PHPWEBCALENDAR_COMPANYCREATE=='always'?1:0);
 
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('COMPANY_CREATE',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -492,7 +492,7 @@ class Societe extends CommonObject
 				if ($call_trigger)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('COMPANY_MODIFY',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -896,7 +896,7 @@ class Societe extends CommonObject
 			if ($sqr == 4)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('COMPANY_DELETE',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/user/group/usergroup.class.php b/htdocs/user/group/usergroup.class.php
index 222865d2bed..a2b4df9c887 100644
--- a/htdocs/user/group/usergroup.class.php
+++ b/htdocs/user/group/usergroup.class.php
@@ -465,7 +465,7 @@ class UserGroup extends CommonObject
 		if ($result)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('USER_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -502,7 +502,7 @@ class UserGroup extends CommonObject
 			if ($this->update(1) < 0) return -2;
 
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('GROUP_CREATE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -541,7 +541,7 @@ class UserGroup extends CommonObject
 			if (!$error && ! $notrigger)
 			{
 				// Appel des triggers
-				include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+				include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 				$interface=new Interfaces($this->db);
 				$result=$interface->run_triggers('GROUP_MODIFY',$this,$user,$langs,$conf);
 				if ($result < 0) { $error++; $this->errors=$interface->errors; }
diff --git a/htdocs/user/user.class.php b/htdocs/user/user.class.php
index eefa0587ea7..68c8a41334c 100644
--- a/htdocs/user/user.class.php
+++ b/htdocs/user/user.class.php
@@ -604,7 +604,7 @@ class User extends CommonObject
 		if ($result)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('USER_ENABLEDISABLE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -660,7 +660,7 @@ class User extends CommonObject
 		if ($result)
 		{
 			// Appel des triggers
-			include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+			include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 			$interface=new Interfaces($this->db);
 			$result=$interface->run_triggers('USER_DELETE',$this,$user,$langs,$conf);
 			if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -761,7 +761,7 @@ class User extends CommonObject
 					if (! $notrigger)
 					{
 						// Appel des triggers
-						include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+						include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 						$interface = new Interfaces($this->db);
 						$result = $interface->run_triggers('USER_CREATE',$this,$user,$langs,$conf);
 						if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1099,7 +1099,7 @@ class User extends CommonObject
 				if (! $error && ! $notrigger)
 				{
 					// Appel des triggers
-					include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+					include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 					$interface=new Interfaces($this->db);
 					$result=$interface->run_triggers('USER_MODIFY',$this,$user,$langs,$conf);
 					if ($result < 0) { $error++; $this->errors=$interface->errors; }
@@ -1244,7 +1244,7 @@ class User extends CommonObject
 					if (! $error && ! $notrigger)
 					{
 						// Appel des triggers
-						include_once(DOL_DOCUMENT_ROOT . "/core/interfaces.class.php");
+						include_once(DOL_DOCUMENT_ROOT . "/core/class/interfaces.class.php");
 						$interface=new Interfaces($this->db);
 						$result=$interface->run_triggers('USER_NEW_PASSWORD',$this,$user,$langs,$conf);
 						if ($result < 0) $this->errors=$interface->errors;
diff --git a/htdocs/workflow/admin/workflow.php b/htdocs/workflow/admin/workflow.php
index 6058a4f3add..de6e1e326c1 100644
--- a/htdocs/workflow/admin/workflow.php
+++ b/htdocs/workflow/admin/workflow.php
@@ -25,7 +25,7 @@
 
 require("../../main.inc.php");
 //require_once(DOL_DOCUMENT_ROOT."/workflow/class/workflow.class.php");
-require_once(DOL_DOCUMENT_ROOT."/core/interfaces.class.php");
+require_once(DOL_DOCUMENT_ROOT."/core/class/interfaces.class.php");
 
 $langs->load("admin");