On Windows 2003 how can I get the active power scheme using powercfg?

Question

On Windows 7 I can use the parameter getactivescheme to get this information. How can I get it on Windows 2003?

On Windows 7 I can run the following code:

PS C:\Users\e> powercfg -getactivescheme
Power Scheme GUID: 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c  (High performance)

On Windows 2003, I get an error:

PS G:\> powercfg -getactivescheme
Invalid Parameters -- try "/?" for help
PS G:\>

Anyone can help? Thanks.

Answer 1

This is a quote from Microsoft

/query, /q
Use the following command to query each scheme to find out the settings: powercfg /query scheme For example, if you run powercfg /query "always on", the settings for the Always On scheme appear. [...]

If you do not specify a particular scheme, the default scheme settings appear. For example, if you run powercfg /query, the settings of the current scheme appear. The current scheme is listed in the Power Options tool in Control Panel.

In Windows 7 Powercfg -query displays the name and GUID of your active scheme in the first line. Maybe the strategie for Windows 2003 would be similar. The following example shows you how to extract the scheme name with windows batch commands. Of course you can convert this example to powershell.

@echo off
powercfg -query > list.txt
set /p line=< list.txt  
for /F "tokens=2 delims=()" %%a in ("%line%") do set string=%%a
echo %string%
del list.txt
pause 

How it works

• Pipe the output of powercfg -query to a temp text file
• Read back only the first line of the temp file
• strip out everything between ( and )
• display the scheme name with echo
• delete the temp file