Of course I will let you know
RootFileNameMru:
I noticed that the entries in this looked like those of the Camera Wizard... but it appeared to be less entries.
The first I did was remove (accidental) the complete RootFileNameMru file. After reboot this was fortunately restored by Windows.
But this time it was empty (no entrys).
The DirectoryNameMru:
opened it by double clicking. On the left part you see the binarycodes and on the right some mixed up digits and characters.
I placed the cursor in this pop up, right click highlighted it, right click again, choose "cut", closed all screens, and reboot.
After that I went back to this file to see what happened. It was empty (besides 0000) and the Wizard only contained some entries where I can choose from. But not ALL the entrys from the previous photo transfers.
Perhaps it's better to safe the entries first, but you can copy it but no pasting (noticed that).
Think that "File" -> "Export" could do the trick?
Forgive me my 'strange' English
p.s. if this answer is not what you wanted, please explain in other words what you want.