/Check-AppPatch /PatchLocation: /Format: Displays information if the MSP patches are applicable to the offline image. Multiple ...

/Check-AppPatch /PatchLocation: [/Format:]
            
  Displays information if the MSP patches are applicable to the offline image. 
  Multiple patch files can be specified.  Use the /Format option to specify a
  table or list format for the output.  If /Format is not specified, the output
  is formatted as a list.  This command is not supported against an online
  image.

    Example: 
      DISM.exe /Image:C:	est\offline /Check-AppPatch
        /PatchLocation:C:\AppPatches\patch.msp