which configuration belongs to what character

[Mithrahn]

As Canadane says, there's no way to find out beyond what she describes without poking around the LOG files for clues.

What I do after finding out which character a folder is for (using the 'log in, log out, DIR the folders to look at the timestamps' method) is then make use of the Windows 7+ 'Link' feature to create symbolic name to the folder using the command-line command MKLINK.

Or you could also keep a txt file, as a sort of Index/Contents file detailing which folder belongs to which.
(Just suggestion alternative ways to remember)