This how-to describes the installation of ZendPlatform on your XAMPP machine. ZendPlatform is very useful for debugging and profiling your code. By the way, it’s free for development purposes.
Step 1 : You have to install XAMPP on your windows machine. In all further steps I
assume that XAMPP is installed in the default directory: c:\program files\xampp
Step 2 : Install the latest Java runtime (JRE) http://www.sun.com
Step 3 : Modify your php.ini (c:\program files\xampp\apache\bin\php.ini)
By default XAMPP disables the zend optimizer, enable it by changing the following entry: zend_optimizer.enable_loader = 1
Step 4 : Now start to install Zendplatform on your machine. You can download a copy from http://www.zend.com (please read the license before you proceed with the installation process).
Run the installer and follow the instructions. In the following dialogs you have to make some decisions on how to install the ZendPlatform. Please follow the settings as described in the screenshots.

Download pdf How-to install ZendPlatform 2.2.1 on an existing XAMPP installation (Windows)