krbcc32s.exe and Windows Scheduled Tasks

Jeffrey Altman jaltman at
Thu May 20 15:45:29 EDT 2010

On 5/20/2010 11:40 AM, Douglas E. Engert wrote:
> It appears that if any KfW command is used by a Scheduled task,
> the command will start krbcc32s. But when the task finishes, the
> krbcc32s continues to run. This is on Windows 2003 SP2 with KfW
> The commands being used in the task are ms2mit and aklog to use
> the ticket obtained be the task to get an AFS token.
> The KfW 3.2.2 source architecture.txt and implementation.txt say
> the Auto-Termination feature was never added.
> We are starting to test using kdestroy and the krbcc32s -k option
> to kill the process after the aklog.
> What should the behavior of krbcc32s be when the scheduled task
> ends?
> I assume windows sends some notification event to any processes
> that are part of the task. Is krbcc32s.exe failing to respond
> to the event?
> Is this fixed in later versions? I don't see anything in the
> 3.2.2 release notes about this issue. Other then "In fact, you
> generally should never have to kill krbcc32s."

Scheduled tasks are not part of a logon session.  Therefore, there is no
logoff event to cause krbcc32s.exe to terminate.  You must manually
terminate it as part of your task.

  krbcc32s.exe -k

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