用Wix Burn检测以前的捆绑版本

Question

我正在尝试检测以前安装的包的版本号是多少。然而，burn似乎没有找到它，尽管它适当地检测到它将进行一次重大升级。

以下是我的包xml的相关部分：

<?define BUNDLE_UPGRADE_CODE=my_upgrade_code_guid?>

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">

  <Bundle UpgradeCode="$(var.BUNDLE_UPGRADE_CODE)" DisableModify="yes" ...>

    <util:ProductSearch UpgradeCode="$(var.BUNDLE_UPGRADE_CODE)" Variable="PreviousVersion" />

    <BootstrapperApplicationRef ... />

    <Chain>
      <ExePackage Id="my_exe_package".../>
      <MsiPackage Id="my_msi_package" .../>
    </Chain>
  </Bundle>
</Wix>

其思想是，ProductSearch应该使用升级代码检测任何产品，并将版本号放在变量PreviousVersion中供以后使用。但是，burn似乎没有用此升级代码检测到任何现有产品，相反，它总是将版本设置为"0.0.0.0“。下面是日志文件的相关部分(为了清晰起见对其进行了一些编辑)：

...: Detect begin, 2 packages
...: Product or related product not found: {my_upgrade_code_guid}
...: Setting version variable 'PreviousVersion' to value '0.0.0.0'
...: Detected related bundle: {previous_bundle_product_code}, type: Upgrade, scope: PerMachine, version: 1.0.0.0, operation: MajorUpgrade
...: Detected related package: {previous_msi_product_code}, scope: PerMachine, version: 1.0.0.0, language: 0 operation: MajorUpgrade
...: Detected package: my_exe_package, state: Absent, cached: Complete
...: Detected package: my_msi_package, state: Absent, cached: None
...: Detect complete, result: 0x0
...: Plan begin, 2 packages, action: Install
...: Skipping dependency registration on package with no dependency providers: my_exe_package
...
...: Planned package: my_exe_package, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: None, cache: No, uncache: No, dependency: None
...: Planned package: my_msi_package, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: Yes, uncache: No, dependency: Register
...: Planned related bundle: {previous_bundle_product_code}, type: Upgrade, default requested: Absent, ba requested: Absent, execute: Uninstall, rollback: Install, dependency: None
...: Plan complete, result: 0x0

如果我使用使用MsiEnumRelatedProducts的升级代码“手动”查询产品，我也找不到它，而从msi包中查询升级代码则正确地返回msi产品。

是我的期望吗?在这种情况下，我可以不用查询msi升级代码，因为那个版本对我来说总是一样的。我更感兴趣的是，为什么这样做不像我想的那样有效。

Answer 1

ProductSearch和MsiEnumRelatedProducts寻找的是MSI包，而不是燃烧包。自定义引导程序在其OnDetectRelatedBundle回调中获取现有包的版本。