Error DISM DISM Package Manager: PID=2484 Invalid package location specified D:\ServicePack\IE8-WindowsXP-KB976662-x86-CHS.exe. Must be a directory, or a file with a '.mum' or '.cab' extension - CDISMPackageManager::Internal_CreatePackageByPath(hr:0x80070057)。
查閱WinPE文檔，發現WinPE有如下限制：DISM只能安裝cab、msu和inf 文件。必須使用 OCSetup 聯機安裝 Microsoft 系統安裝程序系統msi文件。
最初制作cmd文件比較繁瑣，需要下載所有補丁程序，然後逐壹輸入補丁文件名。
Dism /Image:D:\Windows_7_ULTIMATE /Add-Package /PackagePath:D:\ServicePack\Windows6.1-KB978886-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB983590-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB975467-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB978601-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2347290-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB979900-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB982665-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB977074-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB982132-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB980195-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2423089-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2443685-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2207566-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2416400-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2305420-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB974571-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB980408-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB982799-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB978542-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2079403-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB979482-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB974431-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2296011-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2387149-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB982214-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2378111-x86.msu /PackagePath:D:\ServicePack\IE8-WindowsXP-KB976662-x86-CHS.exe /PackagePath:D:\ServicePack\Windows6.1-KB972270-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB977165-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB975560-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2296199-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2385678-x86.msu /PackagePath:D:\ServicePack\WindowsDefender.msi /PackagePath:D:\ServicePack\Windows6.1-KB981852-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2286198-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2416471-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2281679-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2442962-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB981332-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB979309-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB979687-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB980232-x86.msu /PackagePath:D:\ServicePack\Windows6.1-KB2436673-x86.msu /PackagePath:D:\ServicePack\windows-kb890830-v3.14.exe /PackagePath:D:\ServicePack\Windows6.1-KB979916-x86.msu
從log文件提示的錯誤信息得到靈感，原來PackagePath參數可以是目錄。於是簡化為：
Dism /Image:D:\Windows_7_ULTIMATE /Add-Package /PackagePath:D:\ServicePack
這樣將來不管有多少補丁程序需要集成，壹行簡單的命令就全部搞定。