MCrypt is a replacement for the UNIX crypt command. Because of the IIS reset that is needed, you must be a dedicated server customer to perform these actions

. If you need you need to enable libmcrypt support for PHP, follow the instructions below.

Copy libmcrypt.dll from C:\Program Files\Parallels\Plesk\Additional\PleskPHP5\ to C:\WINDOWS\system32.

For PHP 5.x for with Plesk, edit

%plesk_dir%\Additional\PleskPHP5\php.ini

change to :

extension=php_mcrypt.dll


Restart all Plesk services.

Restart all IIS services.

Click on Start > Run > type IISReset > click OK.

Verify that IIS stops and restarts by reading the status in the resulting Command Prompt window that pops up.

May be change to ISAPI filter if it is not work