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From: "Soegtrop, Michael" <michael.soegtrop@intel.com>
To: Wouter van Doorn <wouter@vandoorn.tv>,
        "cygwin@cygwin.com"	<cygwin@cygwin.com>
Subject: RE: Compiled programs fail to run from Cygwin Terminal, but work from windows cmd
Date: Thu, 22 Jun 2017 17:46:21 +0000
Message-ID: <0F7D3B1B3C4B894D824F5B822E3E5A175B275C65@IRSMSX102.ger.corp.intel.com>
References: <CANZ2p_ckjzWEp0uPoJ8MAXh=0B6ZhWQVt9v_NmsFP-fpoX-sEg@mail.gmail.com> <oiepk2$78o$1@blaine.gmane.org> <CANZ2p_cpjbjvZfOgSKAmsCT92QHC1i-yPc2BosJgL6u4LCdypQ@mail.gmail.com> <oigj20$2ot$1@blaine.gmane.org> <CANZ2p_dgYfAemU55ssSUkJdnX4ALEAFcWtw+h9R_vM4Z-VYzaw@mail.gmail.com>
In-Reply-To: <CANZ2p_dgYfAemU55ssSUkJdnX4ALEAFcWtw+h9R_vM4Z-VYzaw@mail.gmail.com>
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Dear Wouter,

when things get bizarre on Windows, I tend to use Sysinternals/Microsoft ProcMon. It is free and can be downloaded here:

https://technet.microsoft.com/en-us/sysinternals/processmonitor.aspx

ProcMon shows you all Windows system calls with parameters and error results. You should see the CreatProcess call and possibly can see why it fails. Since Cygwin in the end creates a windows process with windows system calls, it should also help for Cygwin. In case your process does start and fails during initialization, you can also see the Windows system calls it does. If there are DLLs missing, you can also see that.

Best regards,

Michael
Intel Deutschland GmbH
Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany
Tel: +49 89 99 8853-0, www.intel.de
Managing Directors: Christin Eisenschmid, Christian Lamprechter
Chairperson of the Supervisory Board: Nicole Lau
Registered Office: Munich
Commercial Register: Amtsgericht Muenchen HRB 186928

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