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

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

Ioncube provides a setup wizard which is very convenient to help detect the PHP running environment and automatically give tips.
1.1 Please download loader-wizard from http://www.ioncube.com/loader-wizard/loader-wizard.zip 
1.2 After download, extract it to the WWW or HtDocs directory of apache.

2. Run loader-wizard.php

2.1 Use browser to open 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 Verify whether the installation is successful or not

Restart and access the loader.php again. If the installation is successful, the system will show as below.

The decryption software has been installed successfully if you see this page.