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I have certain file in the disk which I am unable to delete, as it mentions that it's being used by a certain process.

How do I identify the process which is using this file?

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Open Process Explorer, use the "Find handle" button.

Another popular tool is Unlocker.

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It's so weird, the Process explorer doesn't seem to identify the process which uses a certain mysql jdbc jar file. – user39186 Apr 7 '11 at 5:48

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