Through testing, I found out that upgrade of our third party software some how makes our product to not function. However, same tester informed me that uninstall of the old third party software and installing the newer version of the software seem to work.
I was requested to remove the old software prior to installing newer prerequisite. I am quite surprised that the upgrade did not work properly, but I would like to know how I can achieve this.
Would there be any way of uninstalling a product during bundle installer that you know the ProductCode and UpgradeCode for?
EDIT : Further researching, I found following on the third party software website
after upgrading, they must repair the installation in Control Panel/Programs
Would it be possible to run repair after installation via wix?