Zend Optimizer not installed
This file was encoded by the ZendGuard. In order to run it, please install the freely available Zend Optimizer, version 3.0.0 or later.
Seeing this instead of the website you expected?
This means this webserver was not installed or configured correctly. In order to view this website properly, please contact the website's system administrator/webmaster with the following message:The component Zend Optimizer is not installed on the Web Server and therefore cannot service encoded files. Please download and install on the Web Server the freely available Zend Optimizer.
Zend Technologies can not help with resolving issues related to this message appearing on websites not belonging to Zend Technologies
What is the Zend Optimizer?
The Zend Optimizer is one of the most popular PHP plugins for performance-improvement, and has been freely available since the early days of PHP 4. It improves performance by taking PHP's intermediate code through multiple Optimization Passes, which replaces inefficient code patterns with efficient code blocks. The replaced code blocks perform the exact same operations as the original code, only faster.
In addition to improving performance, the Zend Optimizer also enables PHP to transparently load files encoded by the ZendGuard.
The Zend Optimizer is a free product available for download from Zend Technologies. Zend Technologies developed the PHP scripting engine, also known as the Zend Engine.