Not so long ago i had the same problem as Roger in [RT 54555], but i was to lazy for RT report.
I think the problem with blurt_atomic on win32 is renaming an open file on win32
(http://perldoc.perl.org/perlport.html#System-Interaction).
my workaround was
http://github.com/tholen/sysadm-install-
perl/commit/c6b434a2d336a90159b9bad252650e178b610e42
after that 003_slurp.t was successful on my win32 machine. can you support this?
Thanks for this great module.
Thomas