如何在单个WiX安装程序中为多个msi包提供可选安装？

<!-- MainInstaller.wxs -->
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Product>
    <!-- 定义产品信息和属性 -->
    <UI>
      <UIRef Id="WixUI_InstallDir" />

      <!-- 自定义对话框 -->
      <Dialog Id="CustomDialog" Width="370" Height="270" Title="选择安装包">
        <Control Id="Package1Checkbox" Type="CheckBox" X="20" Y="70" Width="300" Height="18" Property="INSTALL_PACKAGE1" CheckBoxValue="1" Text="安装包1" />
        <Control Id="Package2Checkbox" Type="CheckBox" X="20" Y="95" Width="300" Height="18" Property="INSTALL_PACKAGE2" CheckBoxValue="1" Text="安装包2" />
        <Control Id="Package3Checkbox" Type="CheckBox" X="20" Y="120" Width="300" Height="18" Property="INSTALL_PACKAGE3" CheckBoxValue="1" Text="安装包3" />
        <!-- 其他复选框，按需添加 -->

        <!-- 下一个按钮 -->
        <Control Id="Next" Type="PushButton" X="236" Y="243" Width="56" Height="17" Default="yes" Text="下一步">
          <Publish Event="DoAction" Value="InstallPackages">1</Publish>
        </Control>
      </Dialog>

      <InstallUISequence>
        <Show Dialog="CustomDialog" Before="ExecuteAction" Overridable="yes" />
      </InstallUISequence>
    </UI>

    <!-- 引用各个MSI包的安装 -->
    <Fragment>
      <ComponentGroupRef Id="Package1Components" />
      <ComponentGroupRef Id="Package2Components" />
      <ComponentGroupRef Id="Package3Components" />
      <!-- 其他包的引用 -->
    </Fragment>
  </Product>
</Wix>

<!-- Package1.wxs -->
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Fragment>
    <ComponentGroup Id="Package1Components">
      <!-- 定义包1的组件、特性等信息 -->
    </ComponentGroup>
  </Fragment>
</Wix>

<!-- Package2.wxs -->
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Fragment>
    <ComponentGroup Id="Package2Components">
      <!-- 定义包2的组件、特性等信息 -->
    </ComponentGroup>
  </Fragment>
</Wix>

<!-- Package3.wxs -->
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Fragment>
    <ComponentGroup Id="Package3Components">
      <!-- 定义包3的组件、特性等信息 -->
    </ComponentGroup>
  </Fragment>
</Wix>