How do I customise the Wix Progress Dialog

Question

I'm trying to customise the standard WiX Progress Dialog (I want to make it show the ActionData). I've followed Neil's guide to customising dialogs but the trouble is, the original ProgressDlg is still being shown instead of mine.

I think I know why: if you tool at the source to ProgressDlg you can see this block of code:

   <InstallUISequence>
    <Show Dialog="ProgressDlg" Before="ExecuteAction" />
  </InstallUISequence>

So rather than being published by another dialog, as most dialogs are, it is being triggered directly as part of the InstallUISequence. So how do I override this?

Answer 1

It seems that the progress dialog must be the last thing in the InstallUISequence before ExecuteAction - otherwise, because Progress Dialogs are modeless, it is shown then hidden straight away.

My solution therefore is just to make sure that my custom progress dialog is shown after the existing one:

  <InstallUISequence>
    <Show Dialog="CustomProgressDlg" After="ProgressDlg" />
  </InstallUISequence>

Answer 2

ProgressDlg is scheduled only when you refer to it. If you want to replace it, customize your dialog sequence to not refer to ProgressDlg.