LastChance runs any nominated programs on shut-down.
I’m using it to auto-copy just the updated or new files with XXCOPY (another good freeware enhanced XCOPY32) to a second drive.
Works best running a .bat file, eg
C:WINDOWSCOMMANDXXCOPY.EXE “c:my documents*.*” G:MYSTUFF /bn/r/e/q/y/V2
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exit