I don't have access to a windows box at the moment, but I'd probably just try it out and see what I get. File::stat claims to just be a by-name interface to the normal stat call, so I'd see what the following gives me:

perl -e 'use Data::Dumper; print Dumper(stat("file.txt"));'
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The Win32::File docs do mention that it exports a list of constants that look like attributes to me, (and which aren't part of the usual stat info) so again I'd probably just try it out and call Dumper on the result.