
PhpExpress dll or shared object files (phpexpress-php-x.x.dll or phpexpress-php-x.x.so) should be copied to PHP extensions directory specified in php.ini file

Directive extension=phpexpress-php-x.x.dll if you are deploying on Windows or extension=phpexpress-php-x.x.so if you are deploying on Unix, Linux or Mac OS operating systems should be entered in php.ini configuration file.
After installing PhpExpress please run phpinfo() script to make sure that NuSphere PHP Accelerator is properly installed.