We have BasicMSI installer project, and we have set the reinstallmode and reinstallmodetext to vemus(also tried emus). But the actual command line parameter passed is REINSTALLMODE=vomus.
We are versioning dll files in our project but we also have too many unversioned files(resources...) so we would like to avoid using 'Always overwrite' on them and use reinstallmode vemus instead.

I`ve also created fresh test BasicMSI project that will only install one file and basically only added Reinstallmode = vemus and also changed reinstallmodetext = vemus.

1. installed test project first time
2. increment product version in installshield project and build it
3. upgrade => in install log i still see REINSTALLMODE=vomus

I would really appreciate any help, since i was unable to find any solution online so far.