The command specified is unknown or not supported when running DISM.exe against a Windows Vista with Service Pack 1 or a ...

The command specified is unknown or not supported when running DISM.exe against a Windows Vista with Service Pack 1 or a Windows Server 2008 target image. 
For more information, see the Help documentation available in the Windows Automated Installation Kit (Windows-AIK) or the Windows OEM Preinstallation Kit (OPK).