InstallShield fails because of a bad uninstall

Question

I\'m building an InstallShield project, which does a [Major Upgrade][1] to an existing install (i.e. I changed the Product Code while retaining the Upgrade Co

Answer 1

If there was only one deployment without that condition, then you could write a custom action where you can run the command line below:

msiexec.exe /x {PRODUCT_CODE_OF_OLD_MSI} REMOVE="ALL" /qn

Another trick that may work is to Schedule RemoveExistingProducts action before InstallInitialize action as stated here: How to uninstall previous version as part of msi install?

You could also write your own custom MSI DLL that terminates running processes before continuing.