Upgrade from 3.x, localized EULA, multiple "applications"

[Jo27W]

Question

I am trying to revive an old solution that uses Wix 3.11 and modernize it to use a current Version of Wix. In order to get started, I installed Heatwave VS 2022 extension (into VS 2022), created a new installer Project within the solution, which references WixToolset.Ui and WixToolset.Util, both version 6.0.2. I managed to produce an .MSI, even signed, and it works, but I haven´t tested all aspects yet.

Two issues I am struggling with are:

a) my old Installation was showing a localized eula, the new doesn´t. I don´t remember exactly what did the trick with 3.x, but in my build script I noted down https://www.hass.de/content/how-create-msi-packages-multilingual-user-interface-mui, https://www.firegiant.com/wix/tutorial/transforms/morphing-installers/, and https://stackoverflow.com/questions/25424017/windowsinstaller-creating-and-editing-mst-file, all of which are related to Wix 3.
I haven´t found anything w.r.t. to newer versions of Wix. Given that all of the UI is standard, I only need to replace the EULA and any error messages in the installation. Is there a guide somewhere? Actually search finds issues and discussions, but none really to the issue and resolved.

b) when I install the old Version first, and then the new one, I end up with two applications in the "Uninstall a programm" Control Panel section. I do have the same upgrade code, ProductCode="*", and . What am I doing wrong? Obviously I am interested in smooth upgrades.

Thanks for any pointers or advice.
Joe

Open Source Maintenance Fee

• I (or an organization I'm a member of) pay the Open Source Maintenance Fee by sponsoring the wixtoolset project because I support the maintainers.

[robmen]

1. That process hasn't been made any simpler in WiX today, but you can use wix.exe to create transforms instead of torch.exe. That's probably the biggest change.
2. Don't know. The code and a verbose log file should probably help. Maybe you're missing the upgrade logic?

[Jo27W]

verbose log of windows installer? or some build? which code?
"upgrade logic" - anything I need to do in my .wxs (other than <MajorUpgrade ../> to include that?

[robmen]

MajorUpgrade should be enough but something isn't working the way you can want some something is wrong. Hard to guess.

And since the problem is during upgrade, you'd want to start by looking at the verbose log file of a Windows Installer log from upgrade to understand why it is doing what it is doing.

From your description everything should be working.

[Jo27W]

I cleaned the system and then did the following:

1. I installed the old Version (old wix) with log
2. I "resinstalled" the old Version with log, pressing cancel when offered with repair/uninstall options
3. I installed the new Version (new wix).
4. I "reinstalled" the new Version

in logs of 1+3 there is FindRelatedProducts. Return value 1, in 2+4 there is FindRelatedProducts. Return value 0. None of them really lists anything.

I double checked Manufacturer, ProductName, UpgradeCode are all the same, Scope=perMachine (default), no noticable change if I add it explicitly. ProductCode/PackageCode are different.

Interestingly if I try to install in opposite order, the old version complains about the new version.

Any suggestion what to look at? the logs are huge.