/Get-WimInfo /WimFile: /Index: | /Name: Displays information about the images contained in the specified WIM file. Examples: ...

/Get-WimInfo /WimFile: [/Index: | /Name:] 

  Displays information about the images contained in the specified WIM file. 

    Examples: 
      DISM.exe /Get-WimInfo /WimFile:C:	est\images\myimage.wim 

      DISM.exe /Get-WimInfo /WimFile:C:	est\images\myimage.wim /Index:1