There are many third-party add-on Products for Plone that can give you additional functionality, often at the click of a button. However, not all Products are created equal. Knowing how to install, test, evaluate and extend them is important.
These instructions cover add-on installation process for Plone 3.3.x and 4 installation.
If you need help with an error or problem: before asking the question, please take a few minutes to read the guidelines below. It is important to know how to state questions, because once you learn it, answers will come much faster.
This document explains how you can manually remove local persistent utilities that were not properly removed from a product while uninstalling.