WordPress.org

Install it like every other wordpress plugin:

1. Upload the directory meta-functions-shortcode to the /wp-content/plugins/ directory
2. Needed files: meta-functions-shortcode.php, mfs_options_form.php, mfs_options_handler.php and mfs_scripts.js (must be in the same directory)
3. Activate the plugin through the 'Plugins' menu in WordPress
4. Use it in your Wordpress articles or where your shortcodes are allowed