I'm trying to use Install Shield LE to package an distribute a winforms app. This is working well and I even have .net 4.5 redistributable packaged in the setup.exe. The issue I am having is I am now creating a version 1.4 of my app, and I want it to successfully uninstall the old versions (1.0 thru 1.3) and install the new. So far I haven't been successful; every time I run the new setup.exe I get a warning saying that the current version has to be uninstalled first using programs and features in control panel.
Does anyone have a decent tutorial or some guidance that could help me improve my customer experience by having my new version replace the old?
Many thanks,
Jason.