Custom fields in RSS

this plugin adds post custom fields in rss feed like this:

<item>
...
<customfields>
<key1>value1</key1>
<key2>value2</key2>
...
</customfields>
...
</item>

1. Upload custom-fields-in-rss to the /wp-content/plugins/ directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress
3. Done!