http://bugs.winehq.org/show_bug.cgi?id=16522
--- Comment #6 from nameless bl4ck.3yed@gmail.com 2008-12-16 03:14:16 --- (In reply to comment #2)
Why does this matter? What in gods name are you trying to do with this? Why not just reboot and start from disc if you want to install?
I was trying to install windows to a laptop without cd-rom. Anyway wine would have to run the installer only until the first reboot(copy some files and install mbr).