– Make sure that your PHP installation is compatible with the Zend Optimizer, it is recommended to use the Windows packages posted in the Zend Store which are compiled in non-debug mode The Zend Optimizer works only with non-debug PHP binaries.
– you can download zend optimizer here.
– The Zend Optimizer for Windows package is a self-extracting installer. Simply run the package file, and follow the installation instructions.
– If you are running a server module (e.g.ISAPI), restart your server. For Microsoft IIS, run
net stop iisadmin, and then net start w3svc, from a command-line console.