Packages (.cab files, also known as WinPE optional components) Add languages, hotfixes, or support for features like PowerShell and the HTML Application Language (HTA).
You can customize device drivers, such as drivers that support network cards or storage devices. This topic covers the common ways to customize a WinPE image. In addition to customizations that are common to Windows and winPE images, such as drivers and packages, WinPE also has some customizations specific to it. You can mounting and customize a WinPE image following the same process as any other Windows image.