Zend Encrypted PHP How to run?

Previously did not contact Zend encryption, now on hand there is a Zend encrypted mall system, local can not run, I am local IIS7.5 + php5.2.5
Under the Zend Optimizer installed also can not access. Everyone help Ah, should be installed what software? Or just get a DLL component installed.

Reply to discussion (solution)

Old Men, help me.

Are you using Zend Guard encryption? What is the encrypted version?

This is the installation requirements "other: Zend Optimizer 2.5.7 and above", I just finished, Phpinfo () also appeared in Zend project, but now has a new problem:

Fatal error:incompatible file format:the encoded file have format major ID 65540, whereas the Optimizer expects 2 in f:\e cstorev1.0.1\app\base\ego.php on line 1953785203

Zend_optimizer.optimization_level=15

No, plus, the error content is the same (the server restarted)

This is the installation requirements "other: Zend Optimizer 2.5.7 and above", I just finished, Phpinfo () also appeared in Zend project, but now has a new problem:

Fatal error:incompatible file format:the encoded file have format major ID 65540, whereas the Optimizer expects 2 in f:\e cstorev1.0.1\app\base\ego.php on line 1953785203

Are you sure the version for PHP 5.2.x is installed?

PHP Version 5.2.5
This is shown in Phpinfo ().

Zendoptimizer-3.3.3-windows-i386.zip for php-5.2.x from the Zend website

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