functions must be added manually .. I do not know how you want to compress and add ... create a .bat file, and then copy the functions in the lines of the list in .iss file
1)I do not know if this is the code you want
2)to add features just add code bat in List.Add ('');
3)This script creates a .bat file in src and then starts it and delete (option that can be removed)
4)you have to adapt the code, I do not know what you want to use as a code (each one in his own)
