Windows’ built-in Deployment Image Servicing and Management (DISM) command, a.k.a. dism.exe, is something of a Swiss Army knife when it comes to working on Windows OS images. Among its many capabilities — such as adding optional Windows features and packages, taking image inventories, performing image cleanups, and more — DISM includes an /Add-Package option. This option allows users to install Microsoft Catalog updates in .cab or .msu files to a targeted Windows image.
