How to open an AEP file.

I agree with you about this:

But I still think that you have to read descriptions very well before purchase, that saves a lot of problems. It´s just like when you buy any product that has some complexity, you try to be informed first, then you buy it or not. Even more if you see, for example, “CS6 and above” next to After Effects, that has to make you think that something is going on about the product you´re buying.