I have multiple install shield files for different environments like Test, QA and Prod. I need to create one Master.ism file in which I want to create configurations like QA, Prod and Test. Master.ism file will contain the common setting and all the sub config files will contain specific setting. At the time of build Master.ism will take the required config file and will create .exe accordingly.
The benefit of change I want one common change there no need to change all the files.