c# - 检查是否使用注册表安装了自定义先决条件

Question

我正在为我的应用程序创建一个 CLickOnce 安装程序，它依赖于另一个应用程序来工作。我希望安装程序在安装我自己的应用程序之前安装其他应用程序(如果尚未安装)。

为此，我在 these (MSDN) 之后创建了一个自定义先决条件指示。截至目前，安装程序会先安装其他应用程序，然后再安装我的应用程序，但不会检查其他应用程序是否已安装。

根据其他先决条件的示例，我在我的先决条件 list 中创建了一个安装检查，以检查包含应用程序版本的注册表项的值。问题是注册表检查总是无法读取注册表。我尝试了许多其他注册表项，但无法读取它们。正常工作的是:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\SharedManagementObjects\CurrentVersion - Version

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer - Version

以及默认 Bootstrap 包(DotNetFX40、SqlExpress2012 等)使用的其他 key 。

这是怎么回事？为什么安装程序无法读取大多数注册表项？

---

我的产品.xml:

<?xml version="1.0" encoding="utf-8" ?>
<Product
  xmlns="http://schemas.microsoft.com/developer/2004/01/bootstrapper"
  ProductCode="TestAppSetup"
/>

和我的 package.xml

<?xml version="1.0" encoding="utf-8"?>
<Package xmlns="http://schemas.microsoft.com/developer/2004/01/bootstrapper"  Name="Test" Culture="Culture">

    <!-- Defines list of files to be copied on build -->  
    <PackageFiles>
        <PackageFile Name="TestApp.exe"/>
    </PackageFiles>

    <InstallChecks>
        <RegistryCheck Property="TestVersion" Key="REGISTRY_KEY_HERE" Value="Version" />
    </InstallChecks>

    <Commands Reboot="Defer">
        <Command PackageFile="TestApp.exe" Arguments="">

            <!-- These checks determine whether the package is to be installed -->
            <InstallConditions>
                <!-- Bypasses if TestApp version 3.6.3 or above is already installed -->
                <BypassIf Property="TestApp" Compare="ValueGreaterThanOrEqualTo" Value="3.6.3"/>
                <!-- Block install if user does not have admin privileges -->
                <FailIf Property="AdminUser" Compare="ValueEqualTo" Value="false" String="AdminRequired"/>
                <!-- Block install on less than Windows XP SP2 -->
                <FailIf Property="VersionNT" Compare="VersionLessThan" Value="5.1.2" String="InvalidPlatformWinNT"/>
                <!-- Block install on W2K3 with no service pack -->
                <FailIf Property="VersionNT" Compare="VersionEqualTo" Value="5.2.0" String="InvalidPlatformWinNT"/>
                <!-- Block install if the platform is IA-64 -->
                <FailIf Property="ProcessorArchitecture" Compare="ValueEqualTo" Value="IA64" String="InvalidPlatformArchitecture" />
            </InstallConditions>

            <ExitCodes>
                <ExitCode Value="0" Result="Success"/>
                <ExitCode Value="1602" Result="Fail" String="UserCancelled"/>
                <ExitCode Value="1603" Result="Fail" String="GeneralFailure"/>
                <ExitCode Value="3010" Result="SuccessReboot"/>
                <DefaultExitCode Result="Fail" FormatMessageFromSystem="true" String="GeneralFailure" />
            </ExitCodes>
        </Command>
    </Commands>

    <!-- Defines a localizable string table for error messages-->
    <Strings>
        <String Name="DisplayName">TestApp</String>
        <String Name="Culture">en</String>
        <String Name="AdminRequired">Administrator permissions are required to install TestApp. Contact your administrator.</String>
        <String Name="InvalidPlatformWinNT">Installation of TestApp requires Windows XP SP2, Windows 2003 SP1, Windows Vista, or later. Contact your application vendor.</String>
        <String Name="InvalidPlatformArchitecture">This version of TestApp is not supported on an IA-64 operating system. Contact your application vendor.</String>
        <String Name="UserCancelled">The user has cancelled the installation. TestApp has not been installed.</String>
        <String Name="GeneralFailure">A failure occurred attempting to install TestApp.</String>
    </Strings>
</Package>

谢谢

Answer 1

我发现了问题...

clickOnce 安装程序是 32 位进程，操作系统是 64 位，因此注册表检查 key 会自动重定向到 WOW6432Node。