Some questions about application of Adobe Reader Integration Key License (RIKLA)

I have obtained some details about the application process of Adobe Reader Integration Key License (RIKLA) from Adobe official website, but there are some questions as follows:

1, whether it is applicable to non-genuine Adobe reader (non-genuine Adobe reader was installed on many user's machines), if supported, whether it requires special settings;

2, it supports which version of Adobe reader;
3, our plug-in will be sold to other companies or individuals to use, how to charge fees;

Any useful information, I would be grateful.

Thanks!