problem when using os.startfile inside python thread

I'm using os.startfile inside a thread, sometime it works fine, and other-times its stops the process.
What is the solution for this problem ? and what dependencies make it work.?
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You should be more specific, show or better describe the code you use, and possibly write down some expectations, how it fails, when it fails. When working with threads, the reason can also be different than the os.startfile().
RayanCoheenAuthor Commented:
OK Pepr,
I couldn't add any part of my code here sir. I can describe the issue more specifically, I'm creating update function to  my application that need to launch some exe files that update the services  of my application  so  I do  use

Open in new window

to launch the  exe file but the application some times failed to start launching other application and  my process not responding after this  line executed and couldn't execute any line after this line.

I feel this strange, I don't understand  why  this line  can  launch  other applications  and  failed others. that is the issue .
I hope  that I described the issue more specific.

The os.startfile() was designed for Windows to launch the associated application for the given data file. This way, you probably do not want to use it for lauching your exe files. At least I am not sure how it should behave in the case.

You may want to use the instead (, or if you already use Python 3.5+.

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