But you seem to have spent a couple of more hours here... :)

OK, to leave something more useful than a sigh, here is the line that does the job in XYplorer (sets the created date of each selected item to that item's modified date):


For one-time usage you can paste that line into the address bar and press Enter.

(Obviously, if you need the reverse job, simply swap "c" and "m".)

Looks cool, but I don't get it to work with XYplorer, using the portable version apimonitor-x86.exe. I have XYplorer.exe listed and selected in "Monitored Processes" but no API calls are listed.