Magento : PHP extension “dom” must be loaded

Magento : PHP extension “dom” must be loaded

The above message tells us that your PHP do not have “dom” compiled with it. You have to get your web host to re-compile PHP with “dom”.  A few PHP extensions are needed in order to run magento properly.

Easy fix, despite the official line from PHP which says you need to recompile PHP –with-mcrypt.