I have been looking for a utility that when ran will show the time remaining before the system is put into S3/S4 mode (TimeRemaining) as well as the Idleness, to help troubleshoot power management problems. These two pieces of information will help determine why power management (system going to StandBy) isn't working. I wasn't able to find a utility so I am trying to write one and can't seem to get it to work. I found the PowrProf.dll function http://msdn.microsoft.com/en-us/library/aa3726