There would be no licensing fee. If I email you with a Word document, you can open it in your native Word program all you want. If you don't have Word, you can't.
Now, that would be the only issue. People would have to have Word. But that is where you allow it to open in whatever format you wish and generally in a certain order. Word documents open in Word unless it isn't there. Then they open in Wordpad. But, if you install Word again, it opens in Word. So, there are no licensing issues.
When you open a database like AmazingMeds.com, it opens in Access IF you have Access on your computer. It would not be difficult at all. He would just have to make sure that it could open in the native letter writer of the program as well if Word were not installed.
