C# – Wix setup – How to define uninstall

I have created a my first Wix Setup to my C# project (i'm beginner with wix).

The setup create a msi file, this file works good. After setup all DLL and .exe are created in "C:\Program Files (x86)\MyApplication"

But when I right click on msi and select uninstall, a uninstall menu is displayed without error but folder "C:\Program Files (x86)\MyApplication" is not removed.

How can I define uninstall function to remove this folder ?

There is a part of my Product.wxs

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
     xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">
  <Product Id="*"
           Name="My Application"
           Language="1033"
           Version="1.0.0.0"
           Manufacturer="Me"
           UpgradeCode="36944ae1-9e9f-4ef0-a860-9d894e0c28ef">
    <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine"/>
    <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed."/>
    <Media Id="1" Cabinet="myApplication.cab" EmbedCab="yes"/>

    <Feature Id="ProductFeature" Title="My Application" Level="1">
      <ComponentGroupRef Id="ProductComponents"/>
      <ComponentRef Id ="ApplicationShortcut"/>
      <ComponentRef Id ="ApplicationShortcutDesk"/>
      <ComponentRef Id ="RemoveAll"/>
    </Feature>
  </Product>

  <Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
      <Directory Id="ProgramMenuFolder">
        <Directory Id="ApplicationProgramsFolder" Name="My Application"/>
      </Directory>
      <Directory Id="DesktopFolder" SourceName="Desktop"/>
      <Directory Id="ProgramFilesFolder">
        <Directory Id="INSTALLFOLDER" Name="My Application">
          <Directory Id="fr" Name="fr"/>

          <Component Id="RemoveAll" Guid="{63F6943C-7707-41CA-BAB9-7438471EC81E}">
            <RemoveFile Id="RemoveAllFilesOnUninstall" Directory="INSTALLFOLDER" Name ="*.*" On ="uninstall"/>
            <RemoveFolder Id="RemoveAllFoldersOnUninstall" Directory="INSTALLFOLDER" On="uninstall"/>
            <RegistryValue Root="HKLM" Key="Software\Microsoft\MyApplication" Name="Path" Type="string" Value="[INSTALLFOLDER]" KeyPath="yes" />
            <util:RemoveFolderEx On="uninstall" Property="INSTALLFOLDER" />
          </Component>
        </Directory>
      </Directory>
    </Directory>
  </Fragment>

  <Fragment>
    <DirectoryRef Id="ApplicationProgramsFolder">
      <Component Id="ApplicationShortcut" Guid="{3B0B5064-807C-4E29-A701-E77BE8B8FA86}">
        <Shortcut Id="ApplicationStartMenuShortcut"
                  Name="My Application"
                  Target="[#MyApplication.exe]"
                  WorkingDirectory="INSTALLFOLDER"/>
        <RemoveFolder Id="ApplicationProgramsFolder" On="uninstall"/>
        <RegistryValue Root="HKCU" Key="Software\Microsoft\MyApplication" Name="installed" Type="integer" Value="1" KeyPath="yes"/>
      </Component>
    </DirectoryRef>
    <DirectoryRef Id="DesktopFolder">
      <Component Id="ApplicationShortcutDesk" Guid="{61087C99-9CA8-4191-8251-219DFDAFC666}">
        <Shortcut Id="ApplicationStartDeskShortcut"
                  Name="My Application"
                  Target="[#MyApplication.exe]"
                  WorkingDirectory="INSTALLFOLDER"/>
        <RemoveFolder Id="DesktopFolder" On="uninstall"/>
        <RegistryValue Root="HKCU" Key="Software\Microsoft\MyApplication" Name="installed" Type="integer" Value="1" KeyPath="yes"/>
      </Component>
    </DirectoryRef>
  </Fragment>

  <Fragment>
    <ComponentGroup Id="ProductComponents">
      <Component Id="ProductComponent" Guid="{5C62E31A-C787-4B45-A4F7-2324A12C72D1}" Directory="INSTALLFOLDER">
        <!-- List of DLL/EXE -->
    </ComponentGroup>
  </Fragment>
</Wix>

Edit: I'm now using UtilExtension and the INSTALLFOLDER is now correctly deleted. The only elements renaming are the ApplicationShortcutDesk and the ApplicationStartMenuShortcut. How the RemoveFolderworks for a shortcut ?