Posted: Wednesday, July 06, 2011 11:41 AM Quote
In order to upgrade PHP 5 to the needed version (if you would like to have other than shipped with Parallels Plesk) please perform the following steps:

Applies to:
  • Plesk 8.x for Windows
  • Plesk 9.x for Windows
  • Plesk 10.x for Windows
  1. Stop Plesk services (‘Control Panel’ and all that are included in the ‘Plesk Run-Time’ section)
  2. Rename folder %plesk_dir%\Additional\PleskPHP5 to the orig_PleskPHP5
  3. Create a new folder %plesk_dir%\Additional\PleskPHP5
  4. Download needed version of PHP, unzi! p its content,
    http://windows.php.net/download/
    and copy it to the newly created folder PleskPHP5
  5. Copy the file php.ini from old folder orig_PleskPHP5 to the new one
  6. Make sure the permissions are inherited
  7. Start Plesk services
  8. Click "Refresh" button in Components Management section in Parallels Plesk
    Home>Settings>Server Components>
    Panel and check if you can see the new PHP version there
You need to be aware that PHP versions other than shipped with Parallels Plesk Panel were not tested.