[syslinux] Get MEMDISK parameters from WinPE 32/64-bit?

[Miller, Shao]

Hey Daniel,

Alternatively, does Windows 7 not provide a PXE boot-loader at all?
BOOTMGR or something?  I would find that difficult to believe, but it's
possible.  If it does, you can continue to use PXELINUX and can chain to
the Windows 7 PE (3.0) using the pxechain.com included with Syslinux.
If you can pass parameters to the PXE-style BOOTMGR counterpart
(whatever its modern incarnation is), you might be able to gather those
parameters from the booted Registry.  For XP/2003, the
TXTSETUP.SIF/BOOT.INI parameters are passed at
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ :
SystemStartOptions.

- Shao Miller