Hi Robert
The dism version gave me:
Deployment Image Servicing and Management tool
Version: 6.3.9600.16384
Error: 11
You cannot service a running 64-bit operating system with a 32-bit version of DISM.
Please use the version of DISM that corresponds to your computer's architecture.
The DISM log file can be found at C:\Windows\Logs\DISM\dism.log
When I did the Get-WindowsPackage command at the PS prompt I got 'VERBOSE: Dism PowerShell Cmdlets Version 6.3.0.0,' then the same error message as before: 'An attempt was made to load a program with an incorrect format.'
There is a copy of dism in \system32 and another in \sysWOW64. I get the same results running dism when I run dism after cd'ing to either directory.