Display [YES] or [NO] message during uninstall? by ANY means?

I am trying to comply with Symbian Signing UNI-08 test criteria and need to
give user an option of deleting or leaving user created text files on the device
when the application is being uninstalled. I don't want to put the files in the private folder
because I don't want the users personally created files to be destroyed automatically when the app is uninstalled. The user create files may be important so I can't just
destroy them without asking.

Therefore, I am required to provide a prompt of some sort at uninstallation time.

Now, I can display the required prompt using a console.exe but the text is so
tiny that it is almost unreadable.

I tried using a Simple HelloWorld GUI app with YES/NO soft keys or a GlobalNote but the HelloWorld:Coecontrol derived app does not suspend the uninstall process. The uninstall completes without pausing and the helloworld app just shuts down immediately.

I thought using the pkg options would be a good approach but I need the options
to display at uninstall time only and that's not possible

So basically I am going around in circles trying to find a solution that will satisfy Symbian Signing. Does anyone have any ideas on how to display
"Do you want to delete files? [Yes] or [No]" at uninstall time?

Paris.