One of the easiest ways to setup a test server on your local computer is to use a free software package called Xampp. Xampp includes Apache, PHP, MySQL and much more. Xampp is easy to install and is available for Windows, Linux, and Mac OS X. Zend Optimizer is typically included, but not enabled by default.

To enable Zend Optimizer you can simply add or uncomment a few lines in the PHP configuration file (php.ini) after you install Xampp.

The php.ini file should contain lines such as:

zend_extension_ts = "\xampplite\php\zendOptimizer\lib\ZendExtensionManager.dll"
zend_extension_manager.optimizer_ts="C:\xampplite\Zend\ZendOptimizer-3.3.0\lib\Optimizer-3.3.0"
zend_optimizer.enable_loader = 1
zend_optimizer.optimization_level=15
zend_optimizer.license_path =