Crack authorization installation instructions
WINDOWS system
Copy the zyiis.zl file to the C:WINDOWS directory. This directory can be customized.
Then modify the php.ini file in the C:WINDOWS (not necessarily this directory) directory and add a line at the bottom
zend_optimizer.license_path="C:WINDOWSzyiis.zl"
Restart IIS
LINUX system
Copy the zyiis.zl file to any directory
Modify php.ini and add a line at the bottom
zend_optimizer.license_path="any directory/zyiis.zl"
Restart web service
Detailed description: http://www.dfgy7.com/thread-103-1-1.html