Wix多实例部署问题：如何将ProductName设为实例专属目录名

我正尝试实现Wix多实例部署功能，希望每个实例的ProductName变量作为对应的安装目录名称。代码中包含片段：

<Directory Id="ProductName">

我尝试了以下安装命令：

msiexec /i MultiInstance.msi MSINEWINSTANCE=1 TRANSFORMS=":I02"
msiexec /i MultiInstance.msi MSINEWINSTANCE=1 TRANSFORMS=":I03"

但所有实例仍被安装到同一目录结构中，我的完整Wix代码如下：

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
    <?define ConsoleApp1_TargetDir=$(var.ConsoleApp1.TargetDir)?>
    <Product Id="*" Name="SetupProject1" Language="1033" Version="1.0.0.0" Manufacturer="Tester" UpgradeCode="4ca5374e-c85c-4d75-8ca3-bfdcc63a6605">
        <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />

        <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
        <MediaTemplate EmbedCab="yes" />

        <Feature Id="ProductFeature" Title="SetupProject1" Level="1">
            <ComponentGroupRef Id="ProductComponents" />
        </Feature>

        <Property Id="INSTANCEID" Value="WhereDoesValueShowUp" Admin="yes" />

        <InstanceTransforms Property="INSTANCEID">
            <Instance Id="I01" ProductCode="{3E3B77E8-B74A-4BD0-A426-DF48C47AF188}" ProductName="My Product 01"/>
            <Instance Id="I02" ProductCode="{17D21A60-4DAF-4640-8271-52FAF88435C7}" ProductName="My Product 02"/>
            <Instance Id="I03" ProductCode="{2240F420-9892-45EF-9809-326095D6AFE4}" ProductName="My Product 03"/>
        </InstanceTransforms>
    </Product>


    <Fragment>
        <Directory Id="TARGETDIR" Name="SourceDir">
            <Directory Id="ProgramFilesFolder">
                <Directory Id="ProductName">
                     <Directory Id="INSTALLFOLDER" Name="SetupProject1" />
                </Directory>
            </Directory>
        </Directory>
    </Fragment>

    <Fragment>
        <ComponentGroup Id="ProductComponents" Directory="INSTALLFOLDER">
            <Component Id="ConsoleApp1.runtimeconfig.json" Guid="7933cc56-e6ee-42be-9022-ec4eee3b2ad7" MultiInstance="yes">
                <File Id="ConsoleApp1.runtimeconfig.json" Name="ConsoleApp1.runtimeconfig.json" Source="$(var.ConsoleApp1_TargetDir)ConsoleApp1.runtimeconfig.json" KeyPath="yes" />
            </Component>
            <Component Id="ConsoleApp1.dll" Guid="75ed96b5-a187-46aa-9def-69e475f06bd7" MultiInstance="yes">
                <File Id="ConsoleApp1.dll" Name="ConsoleApp1.dll" Source="$(var.ConsoleApp1_TargetDir)ConsoleApp1.dll" KeyPath="yes" />
            </Component>
            <Component Id="ConsoleApp1.exe" Guid="{F4665DAB-DD96-4A06-9E0E-D58765F4A3B9}" MultiInstance="yes">
                <File Id="ConsoleApp1.exe" Name="ConsoleApp1.exe" Source="$(var.ConsoleApp1_TargetDir)ConsoleApp1.exe" KeyPath="yes" />
            </Component>
        </ComponentGroup>
    </Fragment>
</Wix>

请问如何配置才能让每个实例安装到以对应ProductName命名的独立目录中？

核心修改点 #

问题出在目录配置的逻辑上：Directory元素的Id是Windows Installer的目录属性标识，而非实际显示的目录名称。需要将目录的名称动态绑定到ProductName属性，而非用ProductName作为目录ID。

步骤1：调整目录结构 #

将原来的目录层级修改为动态引用ProductName作为目录名称，示例如下：

<Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
        <Directory Id="ProgramFilesFolder">
            <!-- 直接将INSTALLFOLDER的名称绑定到ProductName属性 -->
            <Directory Id="INSTALLFOLDER" Name="[ProductName]" />
        </Directory>
    </Directory>
</Fragment>

如果需要保留子目录层级，也可以这样配置：

<Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
        <Directory Id="ProgramFilesFolder">
            <Directory Id="PRODUCTROOTDIR" Name="[ProductName]">
                 <Directory Id="INSTALLFOLDER" Name="SetupProject1" />
            </Directory>
        </Directory>
    </Directory>
</Fragment>

步骤2：验证其他配置 #

• 你已经在<Instance>元素中正确指定了每个实例的ProductName，这部分无需修改。
• 所有组件已设置MultiInstance="yes"，确保多实例组件不会冲突，这部分配置正确。

完整修改后的代码 #

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
    <?define ConsoleApp1_TargetDir=$(var.ConsoleApp1.TargetDir)?>
    <Product Id="*" Name="SetupProject1" Language="1033" Version="1.0.0.0" Manufacturer="Tester" UpgradeCode="4ca5374e-c85c-4d75-8ca3-bfdcc63a6605">
        <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />

        <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
        <MediaTemplate EmbedCab="yes" />

        <Feature Id="ProductFeature" Title="SetupProject1" Level="1">
            <ComponentGroupRef Id="ProductComponents" />
        </Feature>

        <Property Id="INSTANCEID" Value="WhereDoesValueShowUp" Admin="yes" />

        <InstanceTransforms Property="INSTANCEID">
            <Instance Id="I01" ProductCode="{3E3B77E8-B74A-4BD0-A426-DF48C47AF188}" ProductName="My Product 01"/>
            <Instance Id="I02" ProductCode="{17D21A60-4DAF-4640-8271-52FAF88435C7}" ProductName="My Product 02"/>
            <Instance Id="I03" ProductCode="{2240F420-9892-45EF-9809-326095D6AFE4}" ProductName="My Product 03"/>
        </InstanceTransforms>
    </Product>

    <Fragment>
        <Directory Id="TARGETDIR" Name="SourceDir">
            <Directory Id="ProgramFilesFolder">
                <Directory Id="INSTALLFOLDER" Name="[ProductName]" />
            </Directory>
        </Directory>
    </Fragment>

    <Fragment>
        <ComponentGroup Id="ProductComponents" Directory="INSTALLFOLDER">
            <Component Id="ConsoleApp1.runtimeconfig.json" Guid="7933cc56-e6ee-42be-9022-ec4eee3b2ad7" MultiInstance="yes">
                <File Id="ConsoleApp1.runtimeconfig.json" Name="ConsoleApp1.runtimeconfig.json" Source="$(var.ConsoleApp1_TargetDir)ConsoleApp1.runtimeconfig.json" KeyPath="yes" />
            </Component>
            <Component Id="ConsoleApp1.dll" Guid="75ed96b5-a187-46aa-9def-69e475f06bd7" MultiInstance="yes">
                <File Id="ConsoleApp1.dll" Name="ConsoleApp1.dll" Source="$(var.ConsoleApp1_TargetDir)ConsoleApp1.dll" KeyPath="yes" />
            </Component>
            <Component Id="ConsoleApp1.exe" Guid="{F4665DAB-DD96-4A06-9E0E-D58765F4A3B9}" MultiInstance="yes">
                <File Id="ConsoleApp1.exe" Name="ConsoleApp1.exe" Source="$(var.ConsoleApp1_TargetDir)ConsoleApp1.exe" KeyPath="yes" />
            </Component>
        </ComponentGroup>
    </Fragment>
</Wix>

关键说明 #

• 用[ProductName]作为目录的Name属性值，Windows Installer会在安装时自动解析为当前实例的产品名称。
• 避免将ProductName作为目录Id，防止与产品名称属性混淆，导致目录路径无法动态更新。

内容的提问来源于stack exchange，提问作者Rod