[wix-users] WiX Bundle Upgrade Issue

[Colin Sim]

I have a bundle/bootstrapper that contains a EXE and MSI. There is a custom action in the MSI that performs clean-up of data files that are generated by the application. This custom action is scheduled to run on MSI uninstall only.

I am finding that when the bundle gets upgraded, it performs an uninstall of the old bundle before installing the new one. However, by uninstalling the old bundle the MSI clean-up custom action is run - this is not something I want.

Is there additional information that can be passed to the MSI to let it know it's a bundle upgrade instead of an uninstall? Is there a way to work around the bundle behaviour described?

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