In the end, I would not notice the obvious. With file history, backups are written to a custom location. I checked my file drive and found a directory structure that mirrors my source disk. There are several versions of each backup file, each of which has a date and time suffix. for example mytextfile.txt has several versions with names like mytextfile (2013_05_15 10_22_00 UTC).txt .
It was easy to match source files with backups using a simple regular expression. Optional Win API calls are not required.
I'm still curious to know for future reference if there is a more “scientific” way to do this.
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