This is for the previous Reader vulnerability. The new one is very much in the Javascript functions:

http://www.securityfocus.com/bid/34736

Vista isn't popular, but it is very flexible with group policy. You can manage all power settings via GPO in Vista.

http://www.energystar.gov/ia/products/power_mgt/Vista_on_Win2000_2003.pdf

If you use group policy preferences (requires a Vista/2008 to manage the policy) you can use that to configure power settings on XP.

WSUS is also smart enough to wake the machine up at nighttime and apply patches that it detected during the day.