The core code of Zdoo is encrypted by ioncube encryption software ( front-end HTML, CSS, JS, configuration, and language are  open source). Therefore, in order to run Zdoo, you have to install ioncube first.

1.Download loader-wizard.php  (support php5.3, php5.4, php5.5)

Ioncube provides a setup wizard which helps detect the running environment of PHP and will automatically give tips.
1.1 Please download loader-wizard from http://www.ioncube.com/loader-wizard/loader-wizard.zip 
1.2 After downloading, extract it to the www or htdoc directory of apache.

2.Operate loader-wizard.php

2.1 Use web browser to access the loader-wizard.php, for example http://localhost/loader-wizard.php, Change it to the access path according to the actual situation.

2.2 This loader will automatically give tips after calculation,

• Download the corresponding decryption software according to the tips given by this wizard.
  
• Place the downloaded decryption software in assigned directory.
• Download new php.ini file calculated by Wizard and replace the original php.ini file.
• Restart apache.

2.3 Installation verification

Restart ioncube, and access the loader.php again. If it is installed, the system will display a notice.

The decryption software has been installed without any problem if you see this page.