For many years I have developed add-ins for the building design programs like AutoCAD and Revit and MS Word and MS Excel.
Now the time has come where I need to digitally sign my apps, and therefore I have of course searched information on the internet.
I understand that the very first thing, I have to do, is to purchase a digital certificate from some third-party certificate authority so my signature can be easily verified by others.

Now my questions:
  1. Any suggestions for basic reading, examples or tutorials?
  2. It seems that digital certificates are not cheap. Any suggestions (for my small one-man-Company) where to buy a certificate?

Jan Grenov