This is a short tutorial that I have made to share with everyone on how I was able to make a single installer for my Easy Folder Listing module. This installer works on Joomla 1.5, Joomla 2.5 and Joomla 3.0. Now, you may be wondering… “Mike, how did you do that?!” Well, it’s actually quite simple. Let’s me give you a little introduction before we get into the gist of things.