[wix-users] Custom BA - set MsiPackage attribute DisplayInternalUI at runtime

[Baumann Ingo]

Hi All,

In our custom BA the launch action is set to Install. Ordinary installations as well as upgrades work fine. Most of the MSI packages in Bundle.wxs need to show the setup dialogs during installation. But there is no need to show the UI of the MSI for upgrades as the user does not need to enter any data. Is there a way to set the attribute DisplayInternalUI of a package during runtime? Is there a way to set DisplayInternalUI for an MsiPackae by  means of setting Engine.StringVarialbles?

Many thanks,
Ingo