util:RemoveFolderEx not work for add some file by program

[alicera]

I follow this to delete the folder that wix install.
Before delete the program, I add some file into the folder.
these files that I add are not deleted.

https://www.hass.de/content/wix-how-use-removefolderex-your-xml-scripts

https://wixtoolset.org/documentation/manual/v3/howtos/files_and_registry/create_start_menu_shortcut.html

<DirectoryRef Id="ApplicationProgramsFolder">
    <Component Id="ApplicationShortcut" Guid="[PUT-GUID-HERE](https://wixtoolset.org/documentation/manual/v3/howtos/general/generate_guids.html)">
        <Shortcut Id="ApplicationStartMenuShortcut" 
                  Name="My Application Name"
                  Description="My Application Description"
                  Target="[#myapplication.exe]"
                  WorkingDirectory="APPLICATIONROOTDIRECTORY"/>
        <RemoveFolder Id="CleanUpShortCut" Directory="ApplicationProgramsFolder" On="uninstall"/>
        <RegistryValue Root="HKCU" Key="Software\MyCompany\MyApplicationName" Name="installed" Type="integer" Value="1" KeyPath="yes"/>
    <util:RemoveFolderEx On="uninstall" Property="APPLICATIONFOLDER" />

    </Component>
</DirectoryRef>

[robmen]

A verbose log file should show what is going on.

[alicera]

how to show verbose log? thanks