[aileron79]

Indeed, I have found that hook and I thought it would be what I was looking for, but obviously this hook only affects spiders/guests, according to the comment on line 449:

PHP Code:

while ($users = $db->fetch_array($allusers))
{
    if ($users['userid'])
    { // Reg'd Member
...
    }
    else
    { // Guest or Spider..
        $spider = '';
...

        $guests["$count"]['count'] = $count + 1;
        $guests["$count"]['useragent'] = htmlspecialchars_uni($users['useragent']);
        $count++;

        ($hook = vBulletinHook::fetch_hook('online_user')) ? eval($hook) : false;
    }
} 


The hook is inside the else branch which obviously handles unregistered users, the code I have added is in the if branch... Did I misinterpret anything...?