Windows 7 Login Screen Image Across Multiple Monitors

I'm looking to force the Windows 7 Login background image (DefaultBackgound.jpg) to stretch across multiple monitors. Have managed to change it with registry hacks (HKLM\Software\Microsoft\Windows\CurrentVersion\Authentication\LoginUI\Background) plus image file placement, (C:\windows\system32\oobe) but cannot get it to stretch across multiple monitors ala WinXP/Vista.

Anyone who's figured out how to do this? Your help is much appreciated!
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Not sure that its is possible currently for the Login screen..

Dual monitor support for standard windows operations try..

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IF you also want to just configure the background to display across multiple monitors try..
Hi jimbodidley,

Try this as well:

Hope it helps, please let me know.
Iain MacMillanIT Regional Manager - UKCommented:
you can change the screen ok, and we also set a dimmed version of our corp wallpaper, so you could read the poorly designed WHITE text for logging in correctly, but to my knowledge, you cannot have it display on more than one monitor initially.

on my dual screen system, with XP, both screens displayed the wallpaper on boot-up and when locked.  now with Win 7 64, it doesn't - when locked for a while and screensaver kicks in, you can sometimes get wallpaper appearing on the 2nd screen, when the first goes to standby, but move the mouse and its black again.

as mentioned, there might be 3rd party apps to solve it, but nothing so far I know of, by using Win 7 on it own.
JimbodidleyAuthor Commented:
Thanks to all who have responded, but this appears to not be possible at this time.

Perhaps M/S will enable this in a future TweakUI utility set.

Thanks again.
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