Well, Unlike most people I was unwilling to rip apart my laptop to get a boot wire running through my car. So being lazy ol' me I found out a way to boot your laptop when you have AC Power out of hibernation.
First if you don't have this, go grab it!
Puts your laptop into hibernation when AC power is removed.
1) Start up scheduled tasks in Windows
2) Create Task
3) Under General Tab make sure you have a Name and run it with "Highest Privileges"
4) Go to triggers tab and create new trigger
5) Choose daily and set a start time anytime about 5+ minutes ahead. along with "Repeat task every 1 minute or lower" if possible "for a duration of: indefinate".
6) Click ok and go to actions and create new
7) Choose "Action: Display a message" with Title and Message whatever you want.
8) Go to conditions and make sure
"Start task only if computer is on AC Power"
"Stop if computer switches to battery"
"Wake computer to run this task"
9) Click ok and save in!
Now when the time comes and it is run "or you click run" it will run it every minute or whatever you choose till AC Power is found. Then it will kick you out of hibernation mode so you can do what you need to!
Hope this helped out a bit
Yes, what happens is the computer will not boot out of hibernation till "AC Power" is received. It will boot it out of hibernation since it believes there is a necessary task. Also, the computer shouldn't be using too much power because it is running by computer internal clock.
K, maybe just on your pc...I'm running xp sp3 and it comes out of standby perfectly but nothing for hibernation..
Enable hibernation and try it again. Be sure you did the right instructions and that it doesn't stop the task when using batteries.
(I originally did this on Windows 7 as my CarOS but moved to XP and it still works)
This doesn't work for me even using "standby". I'm using XP Pro SP3 on a Sony VAIO laptop. The conditions you show in your Step 8 are a little different than in my version of "Scheduled Tasks". Under the "Settings" tab at the bottom under "Power Management" there are three check boxes--
"Don't start the task if the computer is running on batteries."
"Stop the task if battery mode begins."
"Wake the computer to run the task."
There is no option for ""Start task only if computer is on AC Power" . No matter what combinations of "Power Management" you use it will not wake from hibernate when AC power is reconnected. If you set the "Auto Hibernate.exe" to "Standby" and check only "Wake the computer to run the task.", when the AC power is removed it will endlessly cycle between "Standby" and "Fully On" until the AC power is reconnected. Not sure how to get your version of "Scheduled Tasks".