含NSSM服务的软件卸载失败问题求助

使用Wix制作的安装包，安装阶段可成功部署并启动XXXService服务，但执行卸载操作时失败并触发回滚，推测原因是XXXService服务仍处于运行状态，导致main.exe文件无法被删除。

原Wix配置代码如下：

<?xml version="1.0" encoding="UTF-8"?>
<?if $(env.ARCH) = x64 ?>
  <?define ProductName = "Uninstall Bug (64 bit)" ?>
  <?define Win64 = "yes" ?>
  <?define PlatformProgramFilesFolder = "ProgramFiles64Folder" ?>
<?else ?>
  <?define ProductName = "Uninstall Bug" ?>
  <?define Win64 = "no" ?>
  <?define PlatformProgramFilesFolder = "ProgramFilesFolder" ?>
<?endif ?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Product Id="1edc84cf-3a2b-4be9-ab5d-a1553c37e8ef" Name="Uninstall Bug" Language="1033" Version="1.0.0.0" Manufacturer="Example" UpgradeCode="2a82c6fe-9e93-4ccd-8e6c-c04de9a8289b">
    <Package InstallerVersion="200" Compressed="yes" />

    <MediaTemplate EmbedCab="yes" />

    <Feature Id="ProductFeature" Title="Uninstall Bug" Level="1">
        <ComponentGroupRef Id="MyComponentGroupId" />
    </Feature>

    <Directory Id="TARGETDIR" Name="SourceDir">
        <Directory Id="$(var.PlatformProgramFilesFolder)">
            <Directory Id="INSTALLDIR" Name="Uninstall Bug" />
        </Directory>
    </Directory>

    <ComponentGroup Id="MyComponentGroupId">
        <Component Id="MyComponent" Directory="INSTALLDIR" Guid="dfb1e839-1f62-4613-b323-daa3166caab5" KeyPath="yes">
            <File Id="MainFile" Source="src/main.exe" />
            <?if Win64 = "yes" ?>
            <File Id="NSSMFIle" Source="distrib/nssm/win64/nssm.exe" />
            <?else ?>
            <File Id="NSSMFIle" Source="distrib/nssm/win32/nssm.exe" />
            <?endif ?>
        </Component>
    </ComponentGroup>

    <CustomAction Id="CreateService" Directory="INSTALLDIR" Execute="deferred" Impersonate="no"
    ExeCommand='"[INSTALLDIR]nssm" install XXXService "[INSTALLDIR]main.exe" xxx' />
    <CustomAction Id="SetServiceDirectory" Directory="INSTALLDIR" Execute="deferred" Impersonate="no"
    ExeCommand='"[INSTALLDIR]nssm" set XXXService AppDirectory [INSTALLDIR]' />
    <CustomAction Id="StartService" Directory="INSTALLDIR" Execute="deferred" Impersonate="no"
    ExeCommand='"[INSTALLDIR]nssm" start XXXService' />
    <CustomAction Id="StopService" Directory="INSTALLDIR" Execute="deferred" ExeCommand='"[INSTALLDIR]nssm" stop XXXService' Impersonate="no" Return="ignore" />
    <CustomAction Id="UninstallService" Directory="INSTALLDIR" Execute="deferred" ExeCommand='"[INSTALLDIR]nssm" remove XXXService confirm' Impersonate="no" Return="ignore" />
    <InstallExecuteSequence>
        <Custom Action="CreateService" After="InstallServices" />
        <Custom Action="SetServiceDirectory" After="InstallServices" />
        <Custom Action="StartService" After="StartServices" />
        <Custom Action="UninstallService" Before="DeleteServices" />
        <Custom Action="StopService" Before="StopServices" />
    </InstallExecuteSequence>
  </Product>
</Wix>

解决方案 #

1. 调整卸载动作的执行顺序 #

当前自定义动作的时序存在逻辑问题，需确保服务先停止、再卸载，且这两个动作都在文件删除前完成。修改InstallExecuteSequence部分：

<InstallExecuteSequence>
    <Custom Action="CreateService" After="InstallServices" />
    <Custom Action="SetServiceDirectory" After="InstallServices" />
    <Custom Action="StartService" After="StartServices" />
    <!-- 仅在卸载时执行，先停止服务再卸载，都放在文件删除步骤之前 -->
    <Custom Action="StopService" Before="DeleteFiles">REMOVE="ALL"</Custom>
    <Custom Action="UninstallService" After="StopService">REMOVE="ALL"</Custom>
</InstallExecuteSequence>

2. 使用Wix原生ServiceControl管理服务（推荐） #

依赖自定义nssm命令容易出现时序偏差，改用Wix原生的ServiceInstall和ServiceControl元素，能让MSI更可靠地处理服务生命周期：

<ComponentGroup Id="MyComponentGroupId">
    <Component Id="MyComponent" Directory="INSTALLDIR" Guid="dfb1e839-1f62-4613-b323-daa3166caab5" KeyPath="yes">
        <File Id="MainFile" Source="src/main.exe" />
        <?if Win64 = "yes" ?>
        <File Id="NSSMFIle" Source="distrib/nssm/win64/nssm.exe" />
        <?else ?>
        <File Id="NSSMFIle" Source="distrib/nssm/win32/nssm.exe" />
        <?endif ?>
        <!-- 注册服务基本信息，让Wix识别该服务 -->
        <ServiceInstall
            Id="XXXServiceInstall"
            Name="XXXService"
            DisplayName="XXXService"
            Type="ownProcess"
            Start="auto"
            ErrorControl="normal"
            Vital="no" />
        <!-- 自动处理服务启停与卸载，Wait="yes"确保操作完成后再继续流程 -->
        <ServiceControl
            Id="XXXServiceControl"
            Name="XXXService"
            Start="install"
            Stop="both"
            Remove="uninstall"
            Wait="yes" />
    </Component>
</ComponentGroup>

修改后可直接移除自定义的StartService、StopService、UninstallService动作。

3. 确保服务完全停止（自定义动作场景） #

如果仍需使用nssm自定义动作，可修改StopService命令，增加超时等待确保服务完全停止：

<CustomAction Id="StopService" Directory="INSTALLDIR" Execute="deferred" 
ExeCommand='"[INSTALLDIR]nssm" stop XXXService timeout 10' Impersonate="no" Return="check" />

timeout 10表示等待10秒，Return="check"会在服务停止失败时反馈状态（可根据需求调整为ignore）。

内容的提问来源于stack exchange，提问作者porton