I need my installation to install with a full interface if a previous installation is not detected, but if a previous installation is detected (property created from AppSearch) then it needs to run with a Basic user interface.
I have tried setting UILevel with a custom action, but either that is not possible, or I placed it in the wrong location of the sequence.
Has anyone else successfully done something like this? It doesn't have to be a custom action. I am open to suggestions. Thanks.