Sorry for forking a new thread.
I have read your discussion about booting Windows from linuxbios and understand that compatibility of open source bios is the issue. then, how about this idea. WARN: I dont know this is legal in your country. consult an attorney before you do something.
Proposal: Just use proprietary BIOS. you can buy it from BIOS upgrading company. and even I think you MIGHT be able to use a BIOS comes with your PC. I mean, you back up your proprietary BIOS before burn linuxBIOS and use it. For example, you save the bios image to HDD and use it.
--- Okajima, Jun. Tokyo, Japan.