I am working on developing an Operating System. I am also using Windows Vista x64 as my host OS. So I have all the files, my OS has been built, etc. My main drawback is getting it in a proper ISO! I have an existing ISO with similar filenames, etc, but I want to replace the files in it with my new files, so it can remain bootable. So, basically, what I want to do is use the same old ISO but instead of seeing ExampleOS 1.2, I can see ExampleOS 1.3. I can create a new ISO with all the new files, but it can't boot! If anyone has an idea how to make that boot too, please tell me.