Setup InstallShield Limited Edition for VS2010 so it automatically uninstalls previous versions of my application

I am working on a WPF desktop application and I am deploying through an install file generated by InstallShield Limited Edition. I would like the installer to prompt the user and remove any previous versions of the application before installing the new version. I suspect this is done via the Upgrade Paths option in InstallShield, but I can't get it figured out.

Answer goes to an explanation or a link to a decent how-to, tutorial or manual page that answers my question.

At the moment, when running the installer, I get: "Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel."

Thanks

Solution

Try this:

in Solution Explorer go to "General Information" page
increase the Product Version
generate a new Product Code
make sure that ALLUSERS property has the same value as in the old package
go to "Upgrade Paths" page and add the old MSI
build and install your new version

When running this new package it should automatically detect and remove older versions.

You can read about Windows Installer upgrades here: http://msdn.microsoft.com/en-us/library/aa370579(VS.85).aspx