Windows Job File Format

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On Windows a .JOB file specifies task configuration. A .JOB file consists of two main sections, fixed-length and variable-length.

fixed-length section

The fixed-length section is 68 bytes in size and consists of:

offset size value description
0 2 Product version
2 2 File version
4 16 Job UUID (or GUID)
20 2 Application name size offset
The offset is relative from the start of the file.
22 2 Trigger offset
The offset is relative from the start of the file.
24 2 Error Retry Count
26 2 Error Retry Interval
28 2 Idle Deadline
30 2 Idle Wait
32 4 Priority
36 4 Maximum Run Time
40 4 Exit Code
44 4 Status
48 4 Flags
52 2 Year
54 2 Month
56 2 Weekday
58 2 Day
60 2 Hour
62 2 Minute
64 2 Second
66 2 Milli second


Value Identifier Description
0x00800000 REALTIME_PRIORITY_CLASS The task can run at the highest possible priority. The threads of a real-time priority class process preempt the threads of all other processes, including operating system processes performing important tasks.
0x01000000 HIGH_PRIORITY_CLASS The task performs time-critical tasks that can be executed immediately for it to run correctly. The threads of a high-priority class process preempt the threads of normal or idle priority class processes.
0x02000000 IDLE_PRIORITY_CLASS The task can run in a process whose threads run only when the machine is idle, and are preempted by the threads of any process running in a higher priority class.
0x04000000 NORMAL_PRIORITY_CLASS The task has no special scheduling requirements.

variable-length section

See Also

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