Run command prompt as Administrator
Runtime.getRuntime().exec("runas /profile /user:Administrator \"cmd.exe /c Powrprof.dll,SetSuspendState\"");
Also plz see comments
Running as admin without Admin rights
You have a few options
A. Create a shortcut with admin priv.
The shortcut will run cmd /c Rundll32.exe Powrprof.dll,SetSuspendState
Your Java code will run the shortcut:
Runtime rt = Runtime.getRuntime();
rt.exec("cmd /c start \"\" \"myshortcut.lnk\"")
Right click the shortcut icon > properties > advanced > run as administrator
B. Run the java process as administrator
Again, create a shortcut and set to run as administrator. Any processes spawned will also have admin privileges. Your java code will run:
rt.exec("cmd /c Powrprof.dll,SetSuspendState")
C. Use JNA to directly call SetSuspendState routine. The Java process will require admin priv (like B), but you won't have to spawn a process. If you like this, I can provide source code.
D. Use wizmo utility: wizmo quiet standby