Custom Handlers

jimsrply

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Is there a simply way to view CUSTOM HANDLERS or CUSTOM TRIGGERS

in the Task Scheduler?

If not what application do I need?

I do hope some one else finds this very annoying not being able to VIEW

schedules running.

Please don't reply WHY.
 

My Computer

System One

  • OS
    win8 x32 & x64
You need to be a little more specific. What about the task scheduler doesn't meet your needs?

I don't understand what your problem is. I see no difficulty in viewing triggers or actions. What is wrong with the normal method (been there since Vista)?
 

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I'm sorry this is not the reply I was looking for.

As you see from my question I did state PLEASE DON'T REPLY WHY!
 

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Why not??
 

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I didn't ask you why. I asked you to explain how the system does not do what you want, since it looks to me like it does exactly what you want.

You need to explain WHAT it is you want to do in more detail. I am not asking you why. I'm asking what you are looking for, since your question is non-sensical.
 

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No, it doesn't. That's the point. The task scheduler in Windows 8 is identical to the one in Windows 7, and the one in Vista before it. They are exactly the same.
 

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I can't remember too much about Vista because it didn't stay on my disk very long.
So you may be your right about it being the same.

There are actions you can't read. Take another look.
That was the reason for original question.
So I think this my last reply.
 

My Computer

System One

  • OS
    win8 x32 & x64
No, there are no actions you can't read. You are going to have to explain yourself in more detail. You're being vague, and unclear.

Tell us EXACTLY what you want to do, and we will tell you how to do it.
 

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I'm not sure what imsrply is saying but I want to know how to have task scheduler to display a message. Win8 says its a deprecated function.
 

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Display a message how?
 

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Ahh.. I would imagine they no longer support those because of the security issues with allowing desktop interactivity with services. Microsoft has disabled that functionality in many places, because it enabled Shatter attacks.

There seems to be other ways to do this, however, by executing scripts that will do what you want.
 

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I didn't ask you why. I asked you to explain how the system does not do what you want, since it looks to me like it does exactly what you want.

You need to explain WHAT it is you want to do in more detail. I am not asking you why. I'm asking what you are looking for, since your question is non-sensical.

I know this is an old thread, however, as nobody actually replied to the answer, I'll resurrect it and clarify as requested. That said, the question was actually completely clear, as the term Custom Handler is displayed throughout the Task Scheduler interface.

Anyway, start the Task Manager and choose any of a number of standard tasks created by the system, e.g., Maintenance Configurator, Regular Maintenance, Badge Update, BindingWorkItemQueueHandler.

Look at the Action for each of the tasks. The action is listed as Custom Handler. Try to look at that action to see what it does. Try to edit it. You can't!

The system unceremoniously informs you that the Task Scheduler, the program designed to handle all scheduled tasks on your system is unable to edit the action for that task! It can't even tell you what the custom handler is! Furthermore, and not surprisingly, while the system is willing to tell you that the Task Scheduler is unable to edit Custom Handler actions, it makes no mention of what program can edit such actions.

Furthermore, if you go onto TechNet to look at the "full" documentation for the Task Scheduler, the Custom Handler action is not even mentioned!

I would label that "not doing what I want"! ;)
 

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You can't view Custom Handlers or Custom Triggers because there's nothing to view. They're compiled code, in DLL's. They implement the interfaces defined in the task scheduler API, these are found here:

Task Scheduler Interfaces (Windows)

You can see which DLL is called by viewing the Task definition. For example, Badge Update, notice the source is WinStoreUI.dll:

schtasks /query /XML /TN "\Microsoft\Windows\WS\Badge Update"

HTML:
<?xml version="1.0" encoding="UTF-16"?>
<Task version="1.4" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">
  <RegistrationInfo>
    <URI>\Microsoft\Windows\WS\Badge Update</URI>
    <Author>$(@%SystemRoot%\WinStore\WinStoreUI.dll,-600)</Author>
    <Source>$(@%SystemRoot%\WinStore\WinStoreUI.dll,-601)</Source>
    <Description>$(@%SystemRoot%\WinStore\WinStoreUI.dll,-602)</Description>
    <SecurityDescriptor>D:(A;;FA;;;BA)(A;;FA;;;SY)(A;;FR;;;BU)</SecurityDescriptor>
    <Date>2011-05-13T12:24:14.5690357</Date>
  </RegistrationInfo>
  <Triggers>
    <WnfStateChangeTrigger>
      <StateName>7510bca33a1b8741</StateName>
    </WnfStateChangeTrigger>
  </Triggers>
  <Settings>
    <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
    <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>
    <StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>
    <AllowHardTerminate>true</AllowHardTerminate>
    <UseUnifiedSchedulingEngine>true</UseUnifiedSchedulingEngine>
    <StartWhenAvailable>false</StartWhenAvailable>
    <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>
    <IdleSettings>
      <StopOnIdleEnd>true</StopOnIdleEnd>
      <RestartOnIdle>false</RestartOnIdle>
    </IdleSettings>
    <AllowStartOnDemand>true</AllowStartOnDemand>
    <Enabled>true</Enabled>
    <Hidden>false</Hidden>
    <RunOnlyIfIdle>false</RunOnlyIfIdle>
    <WakeToRun>false</WakeToRun>
    <ExecutionTimeLimit>P3D</ExecutionTimeLimit>
    <Priority>7</Priority>
  </Settings>
  <Principals>
    <Principal id="Users">
      <GroupId>S-1-5-4</GroupId>
      <RunLevel>LeastPrivilege</RunLevel>
    </Principal>
  </Principals>
  <Actions Context="Users">
    <ComHandler>
      <ClassId>{00CCDDF6-5107-424D-853D-3907AE5502DC}</ClassId>
    </ComHandler>
  </Actions>
</Task>
 

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Look at the Action for each of the tasks. The action is listed as Custom Handler. Try to look at that action to see what it does. Try to edit it. You can't!
Because you don't need to edit it. This is not a user task, but a system task. You can export the task to XML, find the handler GUID, search regedit for it, etc, etc, but editing it still won't make sense.

If you want to edit, delete the task and import the modified XML. Still doesn't make sense, but perhaps it would satisfy those who insist on editing such tasks. I doubt, though :)
 

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