Custom Action to uninstall third party application
I want my installer(Basic MSI) to uninstall some third party application in that machine and then install my app. I've written a custom script which will launch "msiexec /qn /X{thirdpartyGUID}". When i add this in the user interface sequence my goal is achieved but it fail to uninstall if i run my installer silently using /s
I read that User Interface sequence will not be executed if the setup is run silently. But how to achieve this. Is there any other workaround.
Can you provide any more detail than adding it to the Upgrade table? I have a similar situation and I don't quite see how adding a row to the Upgrade table with my 3rd party GUID will make it uninstall.
