How to make changing MSI install folder work in WiX?

[yanpeng]

I created a MSI installer to install per-user.

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Product
    Id="*"
    Language="1033"
    Manufacturer="my company"
    Name="my software"
    UpgradeCode="{9B85A1B0-6914-4573-92C1-27A6DB849E1D}"
    Version="2.0.0.0">

    <Package 
      Compressed="yes"
      Description="a software" 
      InstallerVersion="500" 
      InstallScope="perUser"
      Manufacturer="my company"
      Comments="copyright" />

    <MediaTemplate EmbedCab="yes" />

    <Directory Id="TARGETDIR" Name="SourceDir">
      <Directory Id="AppDataFolder">
        <Directory Id="ManufacturerFolder" Name="MyCompany">
          <Directory Id="INSTALLFOLDER" Name="MySoftware">
          </Directory>
        </Directory>
      </Directory>
    </Directory>

    <DirectoryRef Id="ManufacturerFolder">
      <Component Id="cmp_manufacturer" Guid="{264B9740-7BF6-4D90-9F0A-5B9489687C96}">
        <RegistryValue 
          Root='HKCU' 
          Key='Software\MyCompany\MySoftware\Product'
          Name='reg_manufacturer'
          Value='manufacturer'
          Type='string'
          KeyPath='yes' />
        <RemoveFolder Id="removeManufacturerFolder" On="uninstall" />
      </Component>
    </DirectoryRef>

    <DirectoryRef Id="INSTALLFOLDER">
      <Component Id="cmp_install" Guid="{0CF4AFFB-9676-4944-BCE7-9B0F54704677}">
        <RegistryValue 
          Root='HKCU' 
          Key='Software\MyCompany\MySoftware\Product'
          Name='reg_install'
          Value='install'
          Type='string'
          KeyPath='yes' />
        <File Id="file_install" Source="installfile.txt" />
        <RemoveFolder Id="removeInstallFolder" On="uninstall" />
      </Component>
    </DirectoryRef>

    <UIRef Id="WixUI_InstallDir" />
    <Property Id="WIXUI_INSTALLDIR" Value="INSTALLFOLDER" />

    <Feature 
      Id="MainFeature"
      Title="My Software"
      Level="1">
      <ComponentRef Id="cmp_manufacturer" />
      <ComponentRef Id="cmp_install" />
    </Feature>
  </Product>
</Wix>

It works well if using default install folder C:\Users\xxx\AppData\Roaming\MyCompany\MySoftware. The file installfile.txt can be removed on uninstall. If I changed the install folder to a different folder using the WiXUI, the file installfile.txt can be copied to the right folder, But the copied file cannot be removed on uninstall. So why that file cannot be removed on uninstall, how to fix this?

I'll appreciate any help.

[yanpeng]

I try out this solution:

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
      <Directory Id="INSTALLFOLDER">
        <Directory Id="Libs32Folder" Name="Libs32">
          <Directory Id="LocalesFolder" Name="locales" />
          <Directory Id="SwiftShaderFolder" Name="swiftshader" />
        </Directory>
      </Directory>
    </Directory>
  </Fragment>
</Wix>

change the INSTALLFOLDER in burn

<Variable Name="InstallFolder" Type="string" Value="[AppDataFolder]xxxx\yyyy"/>
....
<MsiPackage
      Cache="no"
      Compressed="yes"
      SourceFile="Packages\wordalpha.msi">
      <MsiProperty Name="INSTALLFOLDER" Value="[InstallFolder]" />
</MsiPackage>