Where is the library of puzzles kept?

A. This depends on your version of Windows:

Windows 95, 98, ME C:\SadMan Software\Sudoku\
Windows NT4 C:\Winnt\All Users\Application Data\SadMan Software\Sudoku\
Windows XP, 2000, 2003 C:\Documents and Settings\All Users\Application Data\SadMan Software\Sudoku
Vista I don't know!
Windows 7, 8, 10 C:\Program Data\SadMan Software\Sudoku
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