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Editorial Team
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Asked: 2026-05-24T02:47:47+00:00

I need to terminate a frozen thread, I set IsBackground as true but it

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I need to terminate a frozen thread, I set IsBackground as true but it stays alive. Thread’s properties:

ThreadState = AbortRequested

IsBackground = true

When I examine the frozen spot I find the line below:

resultDetect = Detect(input, ref output);

The spot is a 3rd party code (Method Detect). The thread only updates resultDetect as you see. I need to abort that thread and re-start a new one to continue. Otherwise, the application waits and does nothing -fresh resultDetect needed-

How can I kill the thread that doesn’t die?

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1 Answer

  1. Editorial Team

    There’s only one way to safely kill a hung thread in your application: Environment.Exit And even that can fail if the thread is running kernel code.

    It’s best not to use third-party code that hangs. If you have no choice, then run it in a separate process.

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