Index: in-commerce/units/affiliates/affiliates_event_handler.php
===================================================================
--- in-commerce/units/affiliates/affiliates_event_handler.php	(revision 13400)
+++ in-commerce/units/affiliates/affiliates_event_handler.php	(working copy)
@@ -118,7 +118,8 @@
 					}
 					else
 					{
-						setcookie('affiliate_id', $affiliate_id, $this->getCookieExpiration(), BASE_PATH, '.'.SERVER_NAME); // in cookie
+						// in cookie
+						$this->Application->Session->SetCookie('affiliate_id', $affiliate_id, $this->getCookieExpiration());
 					}
 				}
 			}