Our current client installers are a Wise Installer exe and I have converted them to an Advanced Installer msi (since this is what all our other installs use).
I used the AI converter to convert the Wise Installer file to an aip file. I'm trying to figure out how to get the new msi to uninstall the previous version (that was installed using the Wise exe) and then install the new msi. My installs work fine for a fresh install, but if the old program is installed I get the message: "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."
Do I need to add a custom action that will remove the old version? It sees there is another version so what makes it uninstall?
On the Upgrades screen it has both Automatically upgrade older product versions and Uninstall old version first and then install new version checked.
Our current Wise Installer exes work this way and I'd like the new msis to work the same way.
Thanks in advance.