Here's the error: Zend Optimizer requires Zend Engine API version 20020429. The Zend Engine API version 20021010 which is installed, is newer. Contact Zend Technologies at http://www.zend.com/ for a later version of Zend Optimizer. This is after a buildapache.sea run. I don't see Zend support in any of the /script/Zend* files -- 4.2.3 and below -- the latest zend release at zend.com has 4.3 support -- is this a known issue here?