As a curiosity, this http://perl5.git.perl.org/perl.git?a=search&h=HEAD&st=grep&s=utime lead to http://grep.cpan.me/?q=SetFileTime to find
Win32::UTCFileTime - Get/set UTC file times with stat/utime on Win32
Win32API::File::Time - Set file times, even on open or readonly files.

FWIW, its worth remembering there is Win32::Unicode