You installed a plugin and then you try to use the shortcode on your sidebar. It does not show up, what do you do? Well here is a series of short codes that you will add to your functions.php file. By adding the following short codes you will  be able to execute scripts from plugins anywhere in your #wordpress CMS.

Enable Short Codes in Sidebars and Text Widgets

 
add_filter( 'widget_text', 'shortcode_unautop');
add_filter( 'widget_text', 'do_shortcode');

Enable Short Codes in template Files

 
<?php do_shortcode('[foo]'); ?>

Enable Short Codes in Comments

 
add_filter( 'comment_text', 'shortcode_unautop');
add_filter( 'comment_text', 'do_shortcode' );

Enable Short Codes in Categories, tags and Archive Pages

 
add_filter( 'term_description', 'shortcode_unautop');
add_filter( 'term_description', 'do_shortcode' );
These codes will help you use shortcodes everywhere in WordPress. Because of security measures WordPress disables many of them by default.