Uninstalling bundle does not show Maintenance Dialog of msi

[hypetsch]

For your deployment we have an msi package and a bundle including that msi, now we experience the following issue:

When installing the msi and uninstalling it, everything works as expected.
But when installing with the bundle the msi does not show the "uninstall/Maintenance" dialog but instead shows the "installing dialogs" during uninstallation.

Comparing the two installation logs we saw that the msi shows the MaintenanceWelcomeDlg where as the ResumeDlg is shown when uninstalling the bundle.

We assume this is because the ResumeDlg has the condition Installed AND (RESUME OR Preselected) and the log shows that the Preselected is set to 1 in this case
PROPERTY CHANGE: Adding Preselected property. Its value is '1'. which does not happen when using the msi.

As we are also using the "display internal ui" option (bal:DisplayInternalUICondition="1") on the MSiPackage it sounds similar to this ticket: #3690

Note: we recently upgraded from WiX v3 to v4 - couldn't yet verify it is related to this.

Any idea why this happens?

[robmen]

Seems like a solid hypothesis. Did you see why Preselected was set?

[hypetsch]

No, haven't seen it but will get a fresh log next week and try to find it out / provide it.Currently I am on vacation.

[hypetsch]

I just see that it gets set to 1 but for me it is not clear why. Attached I added the logs of an uninstallation until the point where the msi shows the dialog with the "Install" button. The MSiPackage element in the bundle looks like this:

<MsiPackage SourceFile="$(var.Tcs.Samwin.Installer.Msi.TargetPath)" Compressed="yes" EnableFeatureSelection="yes" bal:DisplayInternalUICondition="1">
   <MsiProperty Name="SAMWIN_MODULES" Value="[SAMWIN_MODULES]" />
   <MsiProperty Name="INSTALLDIR" Value="[INSTALLDIR]" />
</MsiPackage>

installer.log
installer_000_Tcs.Samwin.Installer.msi.log

[robmen]

I'm 99.9999% certain this is why: EnableFeatureSelection="yes". You've said your BA will take over feature selection, which means Preselected will be set.

[hypetsch]

Setting EnableFeatureSelection to "no" nor removing it didn't help. Btw. even after setting it to "no" selecting features in the msi was possible, so think I didn't understand what this settings is for :).

As it would be ok for us to hide the msi UI during uninstallation (it is a "click next/next" anyways), I played around with the "DisplayInternalUICondition" but couldn't find a solution to entirely hide the msi UI during uninstallation.

[hypetsch]

Think we found a workaround for the original issue by hiding the UI during uninstallation.

We now have the following code in place checking for the value of WixBundleAction to determine whether the product is being installed or uninstalled.

<MsiPackage SourceFile="$(var.Tcs.Samwin.Installer.Msi.TargetPath)" Compressed="yes" bal:DisplayInternalUICondition="WixBundleAction&lt;&gt;4">
   <MsiProperty Name="SAMWIN_MODULES" Value="[SAMWIN_MODULES]" />
   <MsiProperty Name="INSTALLDIR" Value="[INSTALLDIR]" />
</MsiPackage>

First tests seem to be ok.

Maybe documenting the possible values of WixBundleAction / BOOTSTRAPPER_ACTION in https://wixtoolset.org/docs/tools/burn/builtin-variables/ for would be nice.
Btw. personally I like explicitly specifying the enum values for such "public enums" so they do not get erroneously changed if a new value is added in between.