+1 to exclude antivirus software. We have had to do the same as John Weeks
suggesting, on .NET/Window.Forms platform. Especially occurs with Avast
software
In all cases - you must wait, until file freed by another process.

2015-08-31 20:06 GMT+03:00 John Weeks <j...@wavemetrics.com>:

>
> > On Aug 31, 2015, at 9:54 AM, Igor Mironchik <igor.mironc...@gmail.com>
> wrote:
> >
> > But this file nobody axcept my application is trying to read.
>
> Do you have virus protection software on your machine? We have had to
> implement a system of re-tries to get around the fact that virus protection
> software will often open and check a file right after the file is created.
>
> -John Weeks
>
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