Thank you Jgimmi !
Again , I don't know if this is off-topic too .. it seems I'm developping an off-topic acquired syndrom phobia ..
I've read this how-to
http://www.cromwell-intl.com/unix/op...ows-howto.html
then strictly followed the steps .. and I'm on OpenBSD.5.0 generic kernel ..
the problem is that when I start qemu with either cd inserted or samecd.iso in ~/windows .. the screen got dark and nothing happens ..