Exemple #1
0
extern "C" HRESULT MspEngineExecutePackage(
    __in_opt HWND hwndParent,
    __in BURN_EXECUTE_ACTION* pExecuteAction,
    __in BURN_VARIABLES* pVariables,
    __in BOOL fRollback,
    __in PFN_MSIEXECUTEMESSAGEHANDLER pfnMessageHandler,
    __in LPVOID pvContext,
    __out BOOTSTRAPPER_APPLY_RESTART* pRestart
    )
{
    HRESULT hr = S_OK;
    INSTALLUILEVEL uiLevel = pExecuteAction->mspTarget.pPackage->Msp.fDisplayInternalUI ? INSTALLUILEVEL_DEFAULT : static_cast<INSTALLUILEVEL>(INSTALLUILEVEL_NONE | INSTALLUILEVEL_SOURCERESONLY);
    WIU_MSI_EXECUTE_CONTEXT context = { };
    WIU_RESTART restart = WIU_RESTART_NONE;

    LPWSTR sczCachedDirectory = NULL;
    LPWSTR sczMspPath = NULL;
    LPWSTR sczPatches = NULL;
    LPWSTR sczProperties = NULL;
    LPWSTR sczObfuscatedProperties = NULL;

    // default to "verbose" logging
    DWORD dwLogMode = WIU_LOG_DEFAULT | INSTALLLOGMODE_VERBOSE;

    // get cached MSP paths
    for (DWORD i = 0; i < pExecuteAction->mspTarget.cOrderedPatches; ++i)
    {
        LPCWSTR wzAppend = NULL;
        BURN_PACKAGE* pMspPackage = pExecuteAction->mspTarget.rgOrderedPatches[i].pPackage;
        AssertSz(BURN_PACKAGE_TYPE_MSP == pMspPackage->type, "Invalid package type added to ordered patches.");

        if (BOOTSTRAPPER_ACTION_STATE_INSTALL == pExecuteAction->mspTarget.action)
        {
            hr = CacheGetCompletedPath(pMspPackage->fPerMachine, pMspPackage->sczCacheId, &sczCachedDirectory);
            ExitOnFailure(hr, "Failed to get cached path for MSP package: %ls", pMspPackage->sczId);

            // Best effort to set the execute package cache folder variable.
            VariableSetString(pVariables, BURN_BUNDLE_EXECUTE_PACKAGE_CACHE_FOLDER, sczCachedDirectory, TRUE);

            hr = PathConcat(sczCachedDirectory, pMspPackage->rgPayloads[0].pPayload->sczFilePath, &sczMspPath);
            ExitOnFailure(hr, "Failed to build MSP path.");

            wzAppend = sczMspPath;
        }
        else // uninstall
        {
            wzAppend = pMspPackage->Msp.sczPatchCode;
        }

        if (NULL != sczPatches)
        {
            hr = StrAllocConcat(&sczPatches, L";", 0);
            ExitOnFailure(hr, "Failed to semi-colon delimit patches.");
        }

        hr = StrAllocConcat(&sczPatches, wzAppend, 0);
        ExitOnFailure(hr, "Failed to append patch.");
    }

    // Wire up the external UI handler and logging.
    hr = WiuInitializeExternalUI(pfnMessageHandler, uiLevel, hwndParent, pvContext, fRollback, &context);
    ExitOnFailure(hr, "Failed to initialize external UI handler.");

    //if (BURN_LOGGING_LEVEL_DEBUG == logLevel)
    //{
    //    dwLogMode | INSTALLLOGMODE_EXTRADEBUG;
    //}

    if (pExecuteAction->mspTarget.sczLogPath && *pExecuteAction->mspTarget.sczLogPath)
    {
        hr = WiuEnableLog(dwLogMode, pExecuteAction->mspTarget.sczLogPath, 0);
        ExitOnFailure(hr, "Failed to enable logging for package: %ls to: %ls", pExecuteAction->mspTarget.pPackage->sczId, pExecuteAction->mspTarget.sczLogPath);
    }

    // set up properties
    hr = MsiEngineConcatProperties(pExecuteAction->mspTarget.pPackage->Msp.rgProperties, pExecuteAction->mspTarget.pPackage->Msp.cProperties, pVariables, fRollback, &sczProperties, FALSE);
    ExitOnFailure(hr, "Failed to add properties to argument string.");

    hr = MsiEngineConcatProperties(pExecuteAction->mspTarget.pPackage->Msp.rgProperties, pExecuteAction->mspTarget.pPackage->Msp.cProperties, pVariables, fRollback, &sczObfuscatedProperties, TRUE);
    ExitOnFailure(hr, "Failed to add properties to obfuscated argument string.");

    LogId(REPORT_STANDARD, MSG_APPLYING_PATCH_PACKAGE, pExecuteAction->mspTarget.pPackage->sczId, LoggingActionStateToString(pExecuteAction->mspTarget.action), sczPatches, sczObfuscatedProperties, pExecuteAction->mspTarget.sczTargetProductCode);

    //
    // Do the actual action.
    //
    switch (pExecuteAction->mspTarget.action)
    {
    case BOOTSTRAPPER_ACTION_STATE_INSTALL: __fallthrough;
    case BOOTSTRAPPER_ACTION_STATE_REPAIR:
        hr = StrAllocConcatSecure(&sczProperties, L" PATCH=\"", 0);
        ExitOnFailure(hr, "Failed to add PATCH property on install.");

        hr = StrAllocConcatSecure(&sczProperties, sczPatches, 0);
        ExitOnFailure(hr, "Failed to add patches to PATCH property on install.");

        hr = StrAllocConcatSecure(&sczProperties, L"\" REBOOT=ReallySuppress", 0);
        ExitOnFailure(hr, "Failed to add reboot suppression property on install.");

        hr = WiuConfigureProductEx(pExecuteAction->mspTarget.sczTargetProductCode, INSTALLLEVEL_DEFAULT, INSTALLSTATE_DEFAULT, sczProperties, &restart);
        ExitOnFailure(hr, "Failed to install MSP package.");
        break;

    case BOOTSTRAPPER_ACTION_STATE_UNINSTALL:
        hr = StrAllocConcatSecure(&sczProperties, L" REBOOT=ReallySuppress", 0);
        ExitOnFailure(hr, "Failed to add reboot suppression property on uninstall.");

        // Ignore all dependencies, since the Burn engine already performed the check.
        hr = StrAllocFormattedSecure(&sczProperties, L"%ls %ls=ALL", sczProperties, DEPENDENCY_IGNOREDEPENDENCIES);
        ExitOnFailure(hr, "Failed to add the list of dependencies to ignore to the properties.");

        hr = WiuRemovePatches(sczPatches, pExecuteAction->mspTarget.sczTargetProductCode, sczProperties, &restart);
        ExitOnFailure(hr, "Failed to uninstall MSP package.");
        break;
    }

LExit:
    WiuUninitializeExternalUI(&context);

    ReleaseStr(sczCachedDirectory);
    ReleaseStr(sczMspPath);
    StrSecureZeroFreeString(sczProperties);
    ReleaseStr(sczObfuscatedProperties);
    ReleaseStr(sczPatches);

    switch (restart)
    {
        case WIU_RESTART_NONE:
            *pRestart = BOOTSTRAPPER_APPLY_RESTART_NONE;
            break;

        case WIU_RESTART_REQUIRED:
            *pRestart = BOOTSTRAPPER_APPLY_RESTART_REQUIRED;
            break;

        case WIU_RESTART_INITIATED:
            *pRestart = BOOTSTRAPPER_APPLY_RESTART_INITIATED;
            break;
    }

    // Best effort to clear the execute package cache folder variable.
    VariableSetString(pVariables, BURN_BUNDLE_EXECUTE_PACKAGE_CACHE_FOLDER, NULL, TRUE);

    return hr;
}
Exemple #2
0
extern "C" HRESULT ExeEngineExecutePackage(
    __in BURN_EXECUTE_ACTION* pExecuteAction,
    __in BURN_VARIABLES* pVariables,
    __in BOOL fRollback,
    __in PFN_GENERICMESSAGEHANDLER pfnGenericMessageHandler,
    __in LPVOID pvContext,
    __out BOOTSTRAPPER_APPLY_RESTART* pRestart
    )
{
    HRESULT hr = S_OK;
    WCHAR wzCurrentDirectory[MAX_PATH] = { };
    BOOL fChangedCurrentDirectory = FALSE;
    int nResult = IDNOACTION;
    LPCWSTR wzArguments = NULL;
    LPWSTR sczArgumentsFormatted = NULL;
    LPWSTR sczArgumentsObfuscated = NULL;
    LPWSTR sczCachedDirectory = NULL;
    LPWSTR sczExecutablePath = NULL;
    LPWSTR sczCommand = NULL;
    LPWSTR sczCommandObfuscated = NULL;
    STARTUPINFOW si = { };
    PROCESS_INFORMATION pi = { };
    DWORD dwExitCode = 0;
    GENERIC_EXECUTE_MESSAGE message = { };

    // get cached executable path
    hr = CacheGetCompletedPath(pExecuteAction->exePackage.pPackage->fPerMachine, pExecuteAction->exePackage.pPackage->sczCacheId, &sczCachedDirectory);
    ExitOnFailure1(hr, "Failed to get cached path for package: %ls", pExecuteAction->exePackage.pPackage->sczId);

    // Best effort to set the execute package cache folder variable.
    VariableSetString(pVariables, BURN_BUNDLE_EXECUTE_PACKAGE_CACHE_FOLDER, sczCachedDirectory, TRUE);

    hr = PathConcat(sczCachedDirectory, pExecuteAction->exePackage.pPackage->rgPayloads[0].pPayload->sczFilePath, &sczExecutablePath);
    ExitOnFailure(hr, "Failed to build executable path.");

    // pick arguments
    switch (pExecuteAction->exePackage.action)
    {
    case BOOTSTRAPPER_ACTION_STATE_INSTALL:
        wzArguments = pExecuteAction->exePackage.pPackage->Exe.sczInstallArguments;
        break;

    case BOOTSTRAPPER_ACTION_STATE_UNINSTALL:
        wzArguments = pExecuteAction->exePackage.pPackage->Exe.sczUninstallArguments;
        break;

    case BOOTSTRAPPER_ACTION_STATE_REPAIR:
        wzArguments = pExecuteAction->exePackage.pPackage->Exe.sczRepairArguments;
        break;

    default:
        hr = E_UNEXPECTED;
        ExitOnFailure(hr, "Failed to get action arguments for executable package.");
    }

    // build command
    if (wzArguments && *wzArguments)
    {
        hr = VariableFormatString(pVariables, wzArguments, &sczArgumentsFormatted, NULL);
        ExitOnFailure(hr, "Failed to format argument string.");

        hr = StrAllocFormattedSecure(&sczCommand, L"\"%ls\" %s", sczExecutablePath, sczArgumentsFormatted);
        ExitOnFailure(hr, "Failed to create executable command.");

        hr = VariableFormatStringObfuscated(pVariables, wzArguments, &sczArgumentsObfuscated, NULL);
        ExitOnFailure(hr, "Failed to format obfuscated argument string.");

        hr = StrAllocFormatted(&sczCommandObfuscated, L"\"%ls\" %s", sczExecutablePath, sczArgumentsObfuscated);
    }
    else
    {
        hr = StrAllocFormatted(&sczCommand, L"\"%ls\"", sczExecutablePath);
        ExitOnFailure(hr, "Failed to create executable command.");

        hr = StrAllocFormatted(&sczCommandObfuscated, L"\"%ls\"", sczExecutablePath);
    }
    ExitOnFailure(hr, "Failed to create obfuscated executable command.");

    if (BURN_EXE_PROTOCOL_TYPE_BURN == pExecuteAction->exePackage.pPackage->Exe.protocol)
    {
        // Add the list of dependencies to ignore, if any, to the burn command line.
        if (pExecuteAction->exePackage.sczIgnoreDependencies && BURN_EXE_PROTOCOL_TYPE_BURN == pExecuteAction->exePackage.pPackage->Exe.protocol)
        {
            hr = StrAllocFormattedSecure(&sczCommand, L"%ls -%ls=%ls", sczCommand, BURN_COMMANDLINE_SWITCH_IGNOREDEPENDENCIES, pExecuteAction->exePackage.sczIgnoreDependencies);
            ExitOnFailure(hr, "Failed to append the list of dependencies to ignore to the command line.");

            hr = StrAllocFormatted(&sczCommandObfuscated, L"%ls -%ls=%ls", sczCommandObfuscated, BURN_COMMANDLINE_SWITCH_IGNOREDEPENDENCIES, pExecuteAction->exePackage.sczIgnoreDependencies);
            ExitOnFailure(hr, "Failed to append the list of dependencies to ignore to the obfuscated command line.");
        }

        // Add the list of ancestors, if any, to the burn command line.
        if (pExecuteAction->exePackage.sczAncestors)
        {
            hr = StrAllocFormattedSecure(&sczCommand, L"%ls -%ls=%ls", sczCommand, BURN_COMMANDLINE_SWITCH_ANCESTORS, pExecuteAction->exePackage.sczAncestors);
            ExitOnFailure(hr, "Failed to append the list of ancestors to the command line.");

            hr = StrAllocFormatted(&sczCommandObfuscated, L"%ls -%ls=%ls", sczCommandObfuscated, BURN_COMMANDLINE_SWITCH_ANCESTORS, pExecuteAction->exePackage.sczAncestors);
            ExitOnFailure(hr, "Failed to append the list of ancestors to the obfuscated command line.");
        }
    }

    // Log before we add the secret pipe name and client token for embedded processes.
    LogId(REPORT_STANDARD, MSG_APPLYING_PACKAGE, LoggingRollbackOrExecute(fRollback), pExecuteAction->exePackage.pPackage->sczId, LoggingActionStateToString(pExecuteAction->exePackage.action), sczExecutablePath, sczCommandObfuscated);

    if (!pExecuteAction->exePackage.fFireAndForget && BURN_EXE_PROTOCOL_TYPE_BURN == pExecuteAction->exePackage.pPackage->Exe.protocol)
    {
        hr = EmbeddedRunBundle(sczExecutablePath, sczCommand, pfnGenericMessageHandler, pvContext, &dwExitCode);
        ExitOnFailure1(hr, "Failed to run bundle as embedded from path: %ls", sczExecutablePath);
    }
    else if (!pExecuteAction->exePackage.fFireAndForget && BURN_EXE_PROTOCOL_TYPE_NETFX4 == pExecuteAction->exePackage.pPackage->Exe.protocol)
    {
        hr = NetFxRunChainer(sczExecutablePath, sczCommand, pfnGenericMessageHandler, pvContext, &dwExitCode);
        ExitOnFailure1(hr, "Failed to run netfx chainer: %ls", sczExecutablePath);
    }
    else // create and wait for the executable process while sending fake progress to allow cancel.
    {
        // Make the cache location of the executable the current directory to help those executables
        // that expect stuff to be relative to them.
        if (::GetCurrentDirectoryW(countof(wzCurrentDirectory), wzCurrentDirectory))
        {
            fChangedCurrentDirectory = ::SetCurrentDirectoryW(sczCachedDirectory);
        }

        si.cb = sizeof(si); // TODO: hookup the stdin/stdout/stderr pipes for logging purposes?
        if (!::CreateProcessW(sczExecutablePath, sczCommand, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
        {
            ExitWithLastError1(hr, "Failed to CreateProcess on path: %ls", sczExecutablePath);
        }

        if (pExecuteAction->exePackage.fFireAndForget)
        {
            ::WaitForInputIdle(pi.hProcess, 5000);
            ExitFunction();
        }

        do
        {
            message.type = GENERIC_EXECUTE_MESSAGE_PROGRESS;
            message.dwAllowedResults = MB_OKCANCEL;
            message.progress.dwPercentage = 50;
            nResult = pfnGenericMessageHandler(&message, pvContext);
            hr = (IDOK == nResult || IDNOACTION == nResult) ? S_OK : IDCANCEL == nResult ? HRESULT_FROM_WIN32(ERROR_INSTALL_USEREXIT) : HRESULT_FROM_WIN32(ERROR_INSTALL_FAILURE);
            ExitOnRootFailure(hr, "Bootstrapper application aborted during EXE progress.");

            hr = ProcWaitForCompletion(pi.hProcess, 500, &dwExitCode);
            if (HRESULT_FROM_WIN32(WAIT_TIMEOUT) != hr)
            {
                ExitOnFailure1(hr, "Failed to wait for executable to complete: %ls", sczExecutablePath);
            }
        } while (HRESULT_FROM_WIN32(WAIT_TIMEOUT) == hr);
    }

    hr = HandleExitCode(pExecuteAction->exePackage.pPackage, dwExitCode, pRestart);
    ExitOnRootFailure1(hr, "Process returned error: 0x%x", dwExitCode);

LExit:
    if (fChangedCurrentDirectory)
    {
        ::SetCurrentDirectoryW(wzCurrentDirectory);
    }

    StrSecureZeroFreeString(sczArgumentsFormatted);
    ReleaseStr(sczArgumentsObfuscated);
    ReleaseStr(sczCachedDirectory);
    ReleaseStr(sczExecutablePath);
    StrSecureZeroFreeString(sczCommand);
    ReleaseStr(sczCommandObfuscated);

    ReleaseHandle(pi.hThread);
    ReleaseHandle(pi.hProcess);

    // Best effort to clear the execute package cache folder variable.
    VariableSetString(pVariables, BURN_BUNDLE_EXECUTE_PACKAGE_CACHE_FOLDER, NULL, TRUE);

    return hr;
}
Exemple #3
0
extern "C" HRESULT MsuEngineExecutePackage(
    __in BURN_EXECUTE_ACTION* pExecuteAction,
    __in BOOL fRollback,
    __in PFN_GENERICMESSAGEHANDLER pfnGenericMessageHandler,
    __in LPVOID pvContext,
    __out BOOTSTRAPPER_APPLY_RESTART* pRestart
    )
{
    HRESULT hr = S_OK;
    int nResult = IDNOACTION;
    LPWSTR sczCachedDirectory = NULL;
    LPWSTR sczMsuPath = NULL;
    LPWSTR sczSystemPath = NULL;
    LPWSTR sczWusaPath = NULL;
    LPWSTR sczCommand = NULL;
    SC_HANDLE schWu = NULL;
    BOOL fWuWasDisabled = FALSE;
    STARTUPINFOW si = { };
    PROCESS_INFORMATION pi = { };
    GENERIC_EXECUTE_MESSAGE message = { };
    DWORD dwExitCode = 0;
    BOOL fDoDependency = FALSE;

    // get wusa.exe path
    hr = PathGetKnownFolder(CSIDL_SYSTEM, &sczSystemPath);
    ExitOnFailure(hr, "Failed to find System32 directory.");

    hr = PathConcat(sczSystemPath, L"wusa.exe", &sczWusaPath);
    ExitOnFailure(hr, "Failed to allocate WUSA.exe path.");

    // build command
    switch (pExecuteAction->msuPackage.action)
    {
    case BOOTSTRAPPER_ACTION_STATE_INSTALL:
        // get cached executable path
        hr = CacheGetCompletedPath(TRUE, pExecuteAction->msuPackage.pPackage->sczCacheId, &sczCachedDirectory);
        ExitOnFailure1(hr, "Failed to get cached path for package: %ls", pExecuteAction->msuPackage.pPackage->sczId);

        hr = PathConcat(sczCachedDirectory, pExecuteAction->msuPackage.pPackage->rgPayloads[0].pPayload->sczFilePath, &sczMsuPath);
        ExitOnFailure(hr, "Failed to build executable path.");

        // format command
        hr = StrAllocFormatted(&sczCommand, L"\"%ls\" \"%ls\" /quiet /norestart", sczWusaPath, sczMsuPath);
        ExitOnFailure(hr, "Failed to format MSU install command.");
        break;

    case BOOTSTRAPPER_ACTION_STATE_UNINSTALL:
        // format command
        hr = StrAllocFormatted(&sczCommand, L"\"%ls\" /uninstall /kb:%ls /quiet /norestart", sczWusaPath, pExecuteAction->msuPackage.pPackage->Msu.sczKB);
        ExitOnFailure(hr, "Failed to format MSU uninstall command.");
        break;

    default:
        hr = E_UNEXPECTED;
        ExitOnFailure(hr, "Failed to get action arguments for MSU package.");
    }

    if (pExecuteAction->msuPackage.sczLogPath && *pExecuteAction->msuPackage.sczLogPath)
    {
        hr = StrAllocConcat(&sczCommand, L" /log:", 0);
        ExitOnFailure(hr, "Failed to append log switch to MSU command-line.");

        hr = StrAllocConcat(&sczCommand, pExecuteAction->msuPackage.sczLogPath, 0);
        ExitOnFailure(hr, "Failed to append log path to MSU command-line.");
    }

    LogId(REPORT_STANDARD, MSG_APPLYING_PACKAGE, LoggingRollbackOrExecute(fRollback), pExecuteAction->msuPackage.pPackage->sczId, LoggingActionStateToString(pExecuteAction->msuPackage.action), sczMsuPath ? sczMsuPath : pExecuteAction->msuPackage.pPackage->Msu.sczKB, sczCommand);

    hr = EnsureWUServiceEnabled(&schWu, &fWuWasDisabled);
    ExitOnFailure(hr, "Failed to ensure WU service was enabled to install MSU package.");

    // create process
    si.cb = sizeof(si);
    if (!::CreateProcessW(sczWusaPath, sczCommand, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
    {
        ExitWithLastError1(hr, "Failed to CreateProcess on path: %ls", sczWusaPath);
    }

    do
    {
        message.type = GENERIC_EXECUTE_MESSAGE_PROGRESS;
        message.dwAllowedResults = MB_OKCANCEL;
        message.progress.dwPercentage = 50;
        nResult = pfnGenericMessageHandler(&message, pvContext);
        hr = (IDOK == nResult || IDNOACTION == nResult) ? S_OK : IDCANCEL == nResult ? HRESULT_FROM_WIN32(ERROR_INSTALL_USEREXIT) : HRESULT_FROM_WIN32(ERROR_INSTALL_FAILURE);
        ExitOnRootFailure(hr, "Bootstrapper application aborted during MSU progress.");

        // wait for process to terminate
        hr = ProcWaitForCompletion(pi.hProcess, 500, &dwExitCode);
        if (HRESULT_FROM_WIN32(WAIT_TIMEOUT) != hr)
        {
            ExitOnFailure1(hr, "Failed to wait for executable to complete: %ls", sczWusaPath);
        }
    } while (HRESULT_FROM_WIN32(WAIT_TIMEOUT) == hr);

    // get process exit code
    if (!::GetExitCodeProcess(pi.hProcess, &dwExitCode))
    {
        ExitWithLastError(hr, "Failed to get process exit code.");
    }

    // We'll normalize the restart required error code from wusa.exe just in case. Most likely
    // that on reboot we'll actually get WU_S_REBOOT_REQUIRED.
    if (HRESULT_FROM_WIN32(ERROR_SUCCESS_REBOOT_REQUIRED) == static_cast<HRESULT>(dwExitCode))
    {
        dwExitCode = ERROR_SUCCESS_REBOOT_REQUIRED;
    }

    // handle exit code
    switch (dwExitCode)
    {
    case S_OK: __fallthrough;
    case WU_S_ALREADY_INSTALLED:
        fDoDependency = TRUE;
        __fallthrough;
    case S_FALSE: __fallthrough;
    case WU_E_NOT_APPLICABLE:
        *pRestart = BOOTSTRAPPER_APPLY_RESTART_NONE;
        hr = S_OK;
        break;

    case ERROR_SUCCESS_REBOOT_REQUIRED: __fallthrough;
    case WU_S_REBOOT_REQUIRED:
        fDoDependency = TRUE;
        *pRestart = BOOTSTRAPPER_APPLY_RESTART_REQUIRED;
        hr = S_OK;
        break;

    default:
        hr = E_UNEXPECTED;
        break;
    }

    if (fDoDependency)
    {
        if (BOOTSTRAPPER_ACTION_STATE_INSTALL == pExecuteAction->msuPackage.action)
        {
            hr = DependencyRegisterPackage(pExecuteAction->msuPackage.pPackage);
            ExitOnFailure(hr, "Failed to register the package dependency providers.");
        }
        else if (BOOTSTRAPPER_ACTION_STATE_UNINSTALL == pExecuteAction->msuPackage.action)
        {
            hr = DependencyUnregisterPackage(pExecuteAction->msuPackage.pPackage);
            ExitOnFailure(hr, "Failed to unregister the package dependency providers.");
        }
    }

LExit:
    ReleaseStr(sczCachedDirectory);
    ReleaseStr(sczMsuPath);
    ReleaseStr(sczSystemPath);
    ReleaseStr(sczWusaPath);
    ReleaseStr(sczCommand);

    ReleaseHandle(pi.hProcess);
    ReleaseHandle(pi.hThread);

    if (fWuWasDisabled)
    {
        SetServiceStartType(schWu, SERVICE_DISABLED);
    }

    return hr;
}