[syslinux] New MEMDISK-ISO

[Lindgren Daniel]

> A slight correction would be: The Windows PE must either use 
> .WIM files or some other sort of RAM disk.  If the Windows PE 
> requires access to the boot media (such as a "live CD" PE), 
> you will have to wait until I've finished WinVBlock's ODD 
> (optical disc drive) support.

Yes, I should have made that clear. To boot WinPE over PXE using
memdisk-iso (or Microsoft's method) it has to be configured to boot to a
RAM disk.

MS has documented the procedure here:
http://technet.microsoft.com/en-us/library/dd799303(WS.10).aspx

Cheers,
Daniel