I've been googling around and I've come up empty. (and of course Zend is no help) Is there a way to enable or disable Zend Optimizer on a per-virtual-host basis (with apache)? Lucky me decided to upgrade to php5, then of course I upgraded to 5.2 because of the security release and when Zend finally released an optimizer, it craps out with vBulletin and with MediaWiki. Unfortunately, I have an encoded script I need to run, but enabling the optimizer effectively hoses other things for me. I'm thinking that my only solution might be to be running a separate instance of apache and php just for this one script.