diff --git a/datamodels/2.x/itop-backup/datamodel.itop-backup.xml b/datamodels/2.x/itop-backup/datamodel.itop-backup.xml
index 8076ad720..c3281411a 100644
--- a/datamodels/2.x/itop-backup/datamodel.itop-backup.xml
+++ b/datamodels/2.x/itop-backup/datamodel.itop-backup.xml
@@ -5,8 +5,7 @@
       <rank>15</rank>
       <parent>AdminTools</parent>
       <url>status.php</url>
-      <enable_class>ResourceAdminMenu</enable_class>
-      <enable_action>UR_ACTION_MODIFY</enable_action>
+      <enable_admin_only>1</enable_admin_only>
     </menu>
   </menus>
 </itop_design>
diff --git a/datamodels/2.x/itop-config/config.php b/datamodels/2.x/itop-config/config.php
index c16a9db4f..ead77a7ea 100644
--- a/datamodels/2.x/itop-config/config.php
+++ b/datamodels/2.x/itop-config/config.php
@@ -84,10 +84,10 @@ function CheckDBPasswordInNewConfig($sSafeContent)
 {
 	$bIsWindows = (array_key_exists('WINDIR', $_SERVER) || array_key_exists('windir', $_SERVER));
 
-	if ($bIsWindows && (preg_match("@'db_pwd' => '[^%']+',@", $sSafeContent) === 0))
+	if ($bIsWindows && (preg_match("@'db_pwd' => '[^%!\"]+',@U", $sSafeContent) === 0))
 	{
 		// Unsupported Password
-		throw new Exception("Database password should not contain % character (backups won't work)...");
+		throw new Exception("On Windows, database password must not contain %, ! or \" character (backups won't work)...");
 	}
 }
 
diff --git a/datamodels/2.x/itop-config/datamodel.itop-config.xml b/datamodels/2.x/itop-config/datamodel.itop-config.xml
index 28be1062a..98e97b2f1 100644
--- a/datamodels/2.x/itop-config/datamodel.itop-config.xml
+++ b/datamodels/2.x/itop-config/datamodel.itop-config.xml
@@ -5,8 +5,7 @@
       <rank>50</rank>
       <parent>AdminTools</parent>
       <url>config.php</url>
-      <enable_class>ResourceAdminMenu</enable_class>
-      <enable_action>UR_ACTION_MODIFY</enable_action>
+      <enable_admin_only>1</enable_admin_only>
     </menu>
   </menus>
 </itop_design>
diff --git a/js/linkswidget.js b/js/linkswidget.js
index 775feb6cf..fa2655f86 100644
--- a/js/linkswidget.js
+++ b/js/linkswidget.js
@@ -44,17 +44,7 @@ function LinksWidget(id, sClass, sAttCode, iInputId, sSuffix, bDuplicates, oWizH
 			$('#dlg_'+me.id).remove();
 		});
 
-        $('#linkedset_'+me.id+' :input').off('change').on('change', function() {
-			if (!($(this).hasClass('selection')) && !($(this).hasClass('select_all'))) {
-				var oCheckbox = $(this).closest('tr').find('.selection');
-				var iLink = oCheckbox.attr('data-link-id');
-				var iUniqueId = oCheckbox.attr('data-unique-id');
-				var sAttCode = $(this).closest('.attribute-edit').attr('data-attcode');
-				var value = $(this).val();
-				return me.OnValueChange(iLink, iUniqueId, sAttCode, value);
-			}
-			return true;
-        });
+        me.RegisterChange();
 
 		var oInput = $('#'+this.iInputId);
 		oInput.bind('update_value', function() { $(this).val(me.GetUpdatedValue()); });
@@ -348,17 +338,7 @@ function LinksWidget(id, sClass, sAttCode, iInputId, sSuffix, bDuplicates, oWizH
     this.OnLinkAdded = function(iAddedId, iRemote)
     {
 		this.AddLink(iAddedId, iRemote);
-        $('#linkedset_'+me.id+' :input').off('change').on('change', function() {
-			if (!($(this).hasClass('selection'))) {
-				var oCheckbox = $(this).closest('tr').find('.selection');
-				var iLink = oCheckbox.attr('data-link-id');
-				var iUniqueId = oCheckbox.attr('data-unique-id');
-				var sAttCode = $(this).closest('.attribute-edit').attr('data-attcode');
-				var value = $(this).val();
-				return me.OnValueChange(iLink, iUniqueId, sAttCode, value);
-			}
-			return true;
-        });
+		me.RegisterChange();
     };
 
 	this.UpdateSizes = function(event, ui)
@@ -435,6 +415,22 @@ function LinksWidget(id, sClass, sAttCode, iInputId, sSuffix, bDuplicates, oWizH
 		return JSON.stringify(aValues);
 	};
 
+	this.RegisterChange = function()
+	{
+		// Listen only used inputs
+		$('#linkedset_'+me.id+' :input[name^="attr_'+me.sAttCode+'["]').off('change').on('change', function() {
+			if (!($(this).hasClass('selection'))) {
+				var oCheckbox = $(this).closest('tr').find('.selection');
+				var iLink = oCheckbox.attr('data-link-id');
+				var iUniqueId = oCheckbox.attr('data-unique-id');
+				var sAttCode = $(this).closest('.attribute-edit').attr('data-attcode');
+				var value = $(this).val();
+				return me.OnValueChange(iLink, iUniqueId, sAttCode, value);
+			}
+			return true;
+		});
+	};
+
 	this.OnValueChange = function(iLink, iUniqueId, sAttCode, value)
 	{
 		var sFormPrefix = me.iInputId;
@@ -476,5 +472,8 @@ function LinksWidget(id, sClass, sAttCode, iInputId, sSuffix, bDuplicates, oWizH
 		});
 		var sToBeCreated = JSON.stringify(aToBeCreated);
 		$('<input type="hidden" name="attr_'+me.sAttCode+'_tbc">').val(sToBeCreated).appendTo(oDiv);
+
+		// Remove unused inputs
+		$('#linkedset_'+me.id+' :input[name^="attr_'+me.sAttCode+'["]').prop("disabled", true);
 	};
 }
diff --git a/setup/setuputils.class.inc.php b/setup/setuputils.class.inc.php
index bf019d1da..ab3892245 100644
--- a/setup/setuputils.class.inc.php
+++ b/setup/setuputils.class.inc.php
@@ -1304,11 +1304,11 @@ EOF
 		$sDBName = $aParameters['db_name'];
 
 		$bIsWindows = (array_key_exists('WINDIR', $_SERVER) || array_key_exists('windir', $_SERVER));
-		if ($bIsWindows && (strpos($sDBPwd, '%') !== false))
+		if ($bIsWindows && (preg_match('@([%!"])@',$sDBPwd) > 0))
 		{
 			// Unsuported Password, disable the "Next" button
 			$oPage->add_ready_script('$("#wiz_form").data("db_connection", "error");');
-			$oPage->add_ready_script('$("#db_info").html("<img src=\'../images/error.png\'/>&nbsp;Database password cannot contain % character...");');
+			$oPage->add_ready_script('$("#db_info").html("<img src=\'../images/error.png\'/>&nbsp;On Windows, database password must not contain %, ! or &quot; character");');
 		}
 		else
 		{