1. If I get code signing for one of my programs then
a customer asks for a report change
do I have to purchase the code signing all overf again after I incorporate the report?

2. Also, does code signing cover all the dlls used by the program?
Would a change in my report DLL require a new code-signing?

This could get very expensive, I have over 10 programs I may have to get
code-signed because Microsoft screwed me again
(my legacy programs no longer print reports. When I put the exe in a win 32
environment they work)

Thanks for any avice