I need to create a patch that only installs an upgraded version of an EXE file and 2 DLL's files. Besides, it runs a SQL Script to add a column to a table. Is that simple, but I cannot figure out how to do it. I have read a lot of documents here, but all of them make me get lost so I cannot see the light at the end of the tunnel. Can you point me to a good tutorial on this matter or give me some clues?
For example, I got stuck when I tried to add the images. By upgraded image I think it is the MSI package that copies the 3 files to a target location and run the SQL Script. By target image I think it is the original MSI file. Here is the first problem. My original package is an EXE installer, not MSI. So I think I am not in the right direction.
Can you give me some hints?