A.
In the FAQs, "How do I schedule commands?" (http://www.windowsitpro.com/Article/ArticleID/15153/15153.html ) and " I am unable to stop a process from Task Manager even though I'm an Administrator, what can I do?"
( http://www.windowsitpro.com/Article/ArticleID/14613/14613.html ), I explain how to submit a command by using the scheduler service with the /interactive switch to start a program. Because the scheduler service runs as the local system, the program would also run with local system credentials. With Winternals' Psexec utility (which you can download at http://www.sysinternals.com/Utilities/PsExec.html), you can use the -s switch to run a program as the system account. The following example shows how to start a cmd.exe session under the system account:
whoami
SAVILLTECH\john
psexec -s cmd.exe
PsExec v1.60 - Execute processes remotely
Copyright (C) 2001-2005 Mark Russinovich
Sysinternals - www.sysinternals.com
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\WINDOWS\system32>whoami
NT AUTHORITY\SYSTEM
C:\WINDOWS\system32>exit
cmd.exe exited on WKSSAVD800 with error code 0.
When you use the -s switch, Psexec temporarily installs on the computer a service named "psexec running psexesvc.exe" which is removed after the application running as system is closed. Thus to run under the system context, you'll need permissions to install services.
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