I am having troubles configuring multiple PHP-versions, all running under Apache 2.4.4 with their own OPcache. My feeling at the moment is that under Windows you can only have one PHP instance with OPcache, but I would love to be contradicted. See this issue at github for details: https://github.com/zendtech/ZendOptimizerPlus/issues/109 Did anyone succeed in running, for instance, PHP 5.3 with an OPcache and PHP 5.5 with OPcache? Jan -- PHP Windows Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php