Hibernation Mode With Windows Server 2008 and Hyper-V

On occasion I need to run Hyper-V for testing on my laptop.  Most of the time though I would love to have the power management function such as hibernation which is disabled by Hyper-V.  In order to get around this I have updated the following registry key which disables Hyper-V on startup.

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\hvboot]"Start"=dword:00000003

Now when I want to run Hyper-V I just click on a .bat file on my desktop which contains the following commands. 

net start hvboot 
net start vmms
net start nvspwmi
net start vhdsvc
PAUSE

Now that you have enabled Hyper-V the power management features will no longer be available until you reboot the system.  This isn't exactly a fix but it's a great workaround.