Get-WindowsImage -ImagePath C:\WIM\install.wim

Remove-WindowsImage -ImagePath c:\wim\install.wim -index 1

Mount-WindowsImage -ImagePath c:\wim\install.wim -Index 1 -Path C:\Mountdir

Add-WindowsPackage -Path C:\Mountdir -PackagePath C:\MSU\New

Dismount-WindowsImage -Path C:\Mountdir -Save

Set-ExecutionPolicy Unrestricted

Examples:

Dism /online /Get-Intl

Dism /image:C:\Mountdir /Get-Intl

Dism /image:C:\Mountdir /distribution:C:\windows_distribution /Get-Intl