Issue #1984 has been updated by Roger Pack. Hmm. I can't reproduce with 1.9 either, I thought I had been able to but apparently not. With 1.8 it's C:\dev\ruby\recr>irb >> require "\\dev\\ruby\\recr\\mytest" LoadError: 127: The specified procedure could not be found. - Init_\dev\ruby\recr\mytest \dev\ruby\recr\mytest.so from \dev\ruby\recr\mytest.so from (irb):1 from :0 >> require '\dev\ruby\recr\mytest' LoadError: 127: The specified procedure could not be found. - Init_\dev\ruby\recr\mytest \dev\ruby\recr\mytest.so from \dev\ruby\recr\mytest.so from (irb):2 from :0 >> require '/dev/ruby/recr/mytest' => true # this one works for some reason. -r ---------------------------------------- http://redmine.ruby-lang.org/issues/show/1984 ---------------------------------------- http://redmine.ruby-lang.org