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I am running to "Access denied" errors while trying to access a COM port?I want to findout who is using the COM port and kill that process?This has been a long pending problem for me,any pointers/suggestions are very much appreciated

could not open port 'COM11': WindowsError(5, 'Access is denied.')
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  • This doesn't exactly strike me as a programming question. Is it? –  Jan 26 '17 at 20:52
  • Possible duplicate of [How do I determine which process is using a serial port?](http://stackoverflow.com/questions/42197/how-do-i-determine-which-process-is-using-a-serial-port) –  Jan 26 '17 at 20:55
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    Try Serial Port Monitor (http://www.aggsoft.com/serial-port-monitor.htm). If you try to open this port the program will show the process that opened this port. If it will show "system" then it is a driver or something similar. – Helen Downs Jan 27 '17 at 04:17

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