Seems that PHP 5.3.1 never happened. Or at least to PHP.net.
I can find absolutely NO traces of this version of PHP anywhere on their site.
http://windows.php.net/downloads/releases/
Wonder what the heck is going on and how would I be able to get a php_zip.dll file from that version.
I have a WAMP installation with that version and it did not include php_zip.dll so I cannot enable the extension.