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  #1  
Old 26-03-2009
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Join Date: Mar 2009
Posts: 19
Port currently owned by unknown windows application

Hello,

Let me explain the situation in the shortest way possible:

I have a Java program that is supposed to recover from a bar code reader the value of the barcode read.

The bar code reader is connected via a serial port.

However, when I launch the application, the program raises this exception:
"Port currently owned by unknown windows application ".

But even when I remove the bar code reader, the same exception is raised.

My question is simple:

I want to know the COM1 port using by which application and how to unregistered it?

Thank you.
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  #2  
Old 26-03-2009
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Join Date: Mar 2008
Posts: 198
Re: Port currently owned by unknown windows application

Here the link which will give you all the Info you want:

http://support.microsoft.com/kb/q92447/
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  #3  
Old 26-03-2009
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Join Date: Jan 2008
Posts: 1,515
Re: Port currently owned by unknown windows application

Normally COM ports are being used by modems. It is possible there's a conflict with your modem and the port you're trying to use for your program.

Try disabling your modem under Hardware Devices, and try again.
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  #4  
Old 26-03-2009
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Join Date: Dec 2008
Posts: 1,108
Re: Port currently owned by unknown windows application

Get Sysinternals ProcessExplorer

http://www.sysinternals.com/Utilitie...sExplorer.html

Go to 'Find'->'Find Handle' and enter
serial1 and click 'Search'.
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