Working environment: PHP-4.3.4-Win32 Iis mysql4.1.7 (nt) win2000, these environments are not introduced below, please don't know friends to search online, have a lot of ways to use Zend Related Tools With: Zend Safeguard Suite (for Win), Zend Optimizer (ZendOptimizer-21.5.7-Windows-i386.exe), then introduce these two tools: Zend Optimizer uses optimized code to improve PHP 4.0 The execution speed of the application. The principle of implementation is to optimize the code generated by the Run-Time Compiler before being finalized. Under normal circumstances, executing the PHP program using Zend Optimizer is 40% to 100% faster than not using it. This means that the site visitor can browse the web faster, thereby completing more transactions, creating better customer satisfaction. Faster response also means saving hardware investments, and enhances the services provided by the website. Therefore, using Zend Optimizer, it is equal to improving the profitability of e-commerce. Zend Optimizer can bring a lot of benefits to PHP users, especially those who operate the site. Quick running PHP programs can significantly reduce the server's CPU load, and reduce half of the reaction time, that is, from the visitor to click on the time between the server start reading the page. Zend Optimizer also acts as an essential operating environment with Zend Encode encrypted code, that is, the server-side of the encrypted code runs must have the zend Optimizer to run. In addition, the tool is free, you can go to http://www.zend.com/store/free_download_old.php?pid=13 download. Zend SafeGuard Suite can provide a flexible licensing authorization mode that can be customized by each user. It contains two product modes - Zend Encoders and Zend License Manager - They form a perfect solution for integrated software protection and licensing authorization. According to my understanding is a Zend Encode IDE tool, which is more convenient to make code encryption. This tool is expensive, but today, http://soft.0zones.com/softview/softview_9681.html can be downloaded for free, the preparation is ready, then start Zend's work. . 1, first install Zend Optimizer: All the way next and ok, the interface to select the web service tool, I use IIS, so select IIS, choose IIS, use other web service tools to choose directly, as shown below: Next: Next Select the location of the php.ini file: Default in C; / Winnt, you can modify it according to your situation, as shown below: Click Next to start installation, you will prompt Zend Optimizer has modified the php.ini file, and will be the original php.ini Backup is saved, as shown below: Now the installation process has been completed, it will be prompted to restart the system.