Zend Optimiser

[Matt]

Look at phpinfo and search for "zend optimizer"

This program makes use of the Zend Scripting Language Engine:
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies with Zend Extension Manager v1.2.0, Copyright (c) 2003-2006, by Zend Technologies with Zend Optimizer v3.2.2, Copyright (c) 1998-2006, by Zend Technologies

Should also be in the last few lines of the main php.ini