There are many possible use cases for an AS3 Base64 encoder / decoder class.
Let me introduced one of them. I had to distribute flash classes without attaching an image file to them. What I did was to put the image (a small logo) inside of an .as file. I simply Base64 encoded the image (using an online service) and then copied and pasted the string into the .as class.
I am sure you can think of even more situations where this class comes handy.
Script Image:

Script Link:

