How to create an updater/installer in InstallShield
Posted on 2009-07-13
I'm a complete InstallShield noob and need some help with an InstallShield project I was given.
If I change the source files to new files and then build the MSI file, it won't let me run it on my test computer (it says that the program is already installed).
This InstallShield project should install a new version from scratch if nothing is installed, or update an existing version.
What do I need to change to get it to perform an update if an earlier version is installed?