[RESOVLED] my application is blocking shutdown

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i have created an application that runs in background. when i minimize it, it will appear on the task bar. it is working fine, but when i turn off my computer, windows says that my application is blocking the shut down process. how do i close my application when i shut down my computer?
i developed it using vs2013 and published it on windows XP computer.

What I have tried:

finding answer over the internet, this is my first time to encouter this.

Posted 2-Aug-16 0:45am

ProgrammingEnthusiast

Updated 2-Aug-16 22:01pm

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Ralf Meier 2-Aug-16 6:49am

OK ... tell us something more about your application.
How do you finish it normally ?
Are there any Threads, Tasks or Backgroundworkers in this application ?

ProgrammingEnthusiast 2-Aug-16 20:50pm

i used threads and background worker on it. there's also a timer

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Kornfeld Eliyahu Peter · Answer 1 · 2016-08-02T00:53:00

There are certain talks (messages) between the Os and your application while OS try to shut down...
OS actually sent a WM_QUERYENDSESSION to your application, but as you didn't handled it it got a false response, marking your application as blocking...
Read this paper, to see how prepare your application to properly play during shut down process:
Guidelines for Applications (Windows)[^]

ProgrammingEnthusiast · Answer 2 · 2016-08-02T20:29:00

Solution 2

i have already resolved it by adding this code during form_closing event of my main form.
If e.CloseReason = CloseReason.WindowsShutDown Then Me.Dispose

Posted 2-Aug-16 20:29pm