Announced at PDC 2008
The Virtual Drive support in Windows 7 has some nice enhancements. There is now built in support for mounting existing VHD’s. You can create a new fixed or dynamic VHD from the drive control panel. My favorite feature? You can mount a VHD at boot time and then boot to the image. Imagine creating a test install of Windows 7 on a VHD. Boot to the test VHD, not your normal desktop and work with system. On the next boot you can continue to work on this VHD or perform a rollback to the original VHD image.

I wouldn’t go so far to claim that you can mount vhd’s at boot time, like Microsoft did, without any proof to back it up.
Saying that, I am wondering if you ever tried mounting a VHD to boot from? I am currently trying to add a windows xp VHD to the boot menu using bcdedit.exe, but unsuccessful.
Get on the bandwagon and give it a shot. I feel like i’m the only one attempting this.
Lotacus,
This will be discussed on some MSDN blogs soon (including mine), I promise.
Thanks,
mk
this is nice post guy… help me alot… thanks
Hi there I like your post
Booting to a VHD is great, because you can leave your existing XP or Vista installation alone and isolated. You can even use the same partition. Programs like Portlock Leap Frog, will automatically update legacy boot managers to support VHD boot, if you are not technical savvy.
Nice blog. I added to my twitter. Your topic Windows 7 – VHD changes very good. i post it to my forum http://bit.ly/4Tnwzn