Wix安装器忽略ALLUSERS参数问题及解决方案咨询

问题背景 #

用Wix制作了一个简易安装器，会将安装包和install.cmd脚本解压到C:\Windows\temp并自动执行脚本。但发现两种运行场景下安装路径不一致：

• 通过Wix安装器运行时，INSTALL.log显示WixPerUserFolder为C:\windows\system32\config\systemprofile\AppData\Local\Apps\Remote Desktop
• 直接在命令行运行install.cmd时，路径则为C:\Users\Admin\AppData\Local\Apps\Remote Desktop
  显然脚本中指定的ALLUSERS=1参数在Wix环境下没有生效，需要修复这个问题。

核心原因 #

问题出在Wix自定义动作的身份模拟设置：当前的CustomAction配置了Impersonate="no"，这会让脚本以系统账户（SYSTEM）身份执行，而非当前登录的用户账户。系统账户的上下文环境和普通用户不同，即使脚本里指定了ALLUSERS=1，也会导致安装路径指向系统配置目录，而非用户个人目录。

解决方案 #

1. 修改自定义动作的身份模拟属性 #

将Wix配置中CustomAction的Impersonate="no"改为Impersonate="yes"，这样脚本会以当前登录用户的身份运行，环境变量和用户上下文与手动执行脚本时一致，ALLUSERS=1参数就能正确生效。

修改后的CustomAction代码：

<CustomAction Id="RunWrapExe" Return="asyncNoWait" Execute="deferred" 
              FileKey="File100" ExeCommand=""
              HideTarget="no" Impersonate="yes" />

注意：由于安装器设置了InstallScope="perMachine"，默认会请求管理员权限，Impersonate="yes"会让脚本在用户的高权限上下文下运行，保证安装权限足够。

2. 直接在Wix中调用msiexec（推荐） #

跳过中间的install.cmd脚本，直接在Wix的自定义动作里调用msiexec并传递参数，减少中间环节的干扰，更可靠地控制安装行为。

替换原自定义动作和执行序列：

<!-- 新增直接调用msiexec的自定义动作 -->
<CustomAction Id="RunMSI" Return="check" Execute="deferred" Impersonate="yes"
              ExeCommand='msiexec.exe ALLUSERS=1 /i "[WindowsFolder]Temp\RemoteDesktop_1.2.5255.0_x64.msi" /l* "[WindowsFolder]Temp\INSTALL.log" /quiet /norestart' />

<InstallExecuteSequence>
    <!-- 替换原来的RunWrapExe为新动作 -->
    <Custom Action="RunMSI" After="InstallFiles">NOT REMOVE~="ALL"</Custom>
    <PublishComponents Suppress="yes" />
    <PublishFeatures Suppress="yes" />
    <PublishProduct Suppress="yes" />
    <RegisterProduct Suppress="yes" />
    <RegisterUser Suppress="yes" />
</InstallExecuteSequence>

3. 检查脚本中的环境变量 #

脚本里设置了TMP和TEMP指向系统临时目录，但这不是路径异常的核心原因。不过可以检查SetVariables.cmd中是否有修改ALLUSERS或用户目录相关的逻辑，避免参数被意外覆盖。

附原代码 #

原AppInstaller.wxs #

<?xml version='1.0'?>
<Wix xmlns='http://schemas.microsoft.com/wix/2006/wi'>
   <Product Id='*' UpgradeCode="3508345-7155-452D-879E-7AC8592FC9B6" 
        Name='AppInstaller' Language='1033' Version='1.0.0.0' 
        Manufacturer='ABC'> 
    
    <Package Description='AppInstaller script' InstallerVersion='200' InstallScope="perMachine" Compressed='yes' />
    <Property Id="AllUSERS" Value="1"/>

    <Media Id='1' Cabinet='setup.cab' EmbedCab='yes' />

    <!-- Package components: define which files to be included in self-extracting package. -->
    <Directory Id='TARGETDIR' Name='SourceDir'>
        <Directory Id="WindowsFolder">
            <Directory Id="INSTALLLOCATION" Name="Temp">
                <Component Id='AppInstallerComponent' DiskId='1' Guid=''>
                    <File Id="File0" Name="RemoteDesktop_1.2.5255.0_x64.msi" Source="Files\RemoteDesktop_1.2.5255.0_x64.msi" />
                </Component>
            </Directory>
        </Directory>

        <Directory Id="TempFolder">
            <Directory Id="tmpdir" Name="~_tmpdir">
                <Component Id='AppInstallScript' DiskId='1' Guid=''>
                    <File Id="File100" Name="install.cmd" Source="Files\install.cmd" />
                </Component>
            </Directory>  
        </Directory>
    </Directory>

    <Feature Id='InstallFeature' Title='Install Feature' Level='1'>
        <ComponentRef Id='AppInstallerComponent' />
        <ComponentRef Id='AppInstallScript' />
    </Feature>

    <!-- Run Action: define which file to run after the package is extracted -->
    <CustomAction Id="RunWrapExe" Return="asyncNoWait" Execute="deferred" 
                  FileKey="File100" ExeCommand=""
                  HideTarget="no" Impersonate="no" />

    <InstallExecuteSequence>
        <Custom Action="RunWrapExe" 
                After="InstallFiles">NOT REMOVE~="ALL"</Custom>
        <PublishComponents Suppress="yes" />
        <PublishFeatures Suppress="yes" />
        <PublishProduct Suppress="yes" />
        <RegisterProduct Suppress="yes" />
        <RegisterUser Suppress="yes" />
    </InstallExecuteSequence>

   </Product>
</Wix>

原install.cmd #

REM The following is required in all INSTALL.CMD files
Call c:\system.sav\util\SetVariables.cmd
Set block=%~dp0
Set TMP=C:\Windows\Temp
Set TEMP=%TMP%
 
REM Install Remote Desktop & capture logs
start /wait msiexec.exe ALLUSERS=1 /i C:\Windows\Temp\RemoteDesktop_1.2.5255.0_x64.msi /l* C:\Windows\Temp\INSTALL.log /quiet /norestart

REM if %ERRORLEVEL% equ 0 del /F /Q C:\Windows\Temp\RemoteDesktop_1.2.5255.0_x64.msi

内容的提问来源于stack exchange，提问作者Ming