UAC popup launch taking time after clicking on Install button

I am developing a WIX Installer for an application. When I click on the Install button, next UI is coming which is a progress bar UI. The issues is the time it takes to start the status messages to the users before UAC popup clicked yes.

Is there any way to开发者_如何学运维 show wait message before this delayed UAC popup to the user?

Thanks, Sandeep

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This is not supported by Windows Installer. These actions are executed immediately one after another, but it takes some time until Windows Installer processes the elevation request.

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I wonder if inserting a custom action into the UI sequence before ExecuteAction would allow you to specify ActionText or MsiProcessMessage it into the progress dialog. Have you tried that?