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Subject: Re: cmd.exe and powershell.exe cannot follow <JUNCTIONS> on NTFS for
 *.exe
To: cygwin AT cygwin DOT com
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On Tue, Jun 17, 2025 at 5:25 PM Aurélien Couderc
<aurelien DOT couderc2002 AT gmail DOT com> wrote:
>
> Cygwin creates <JUNCTIONS> instead of <SYMLINK> on NTFS, but cmd.exe
> cannot find the *.exe if they are linked as <JUNCTIONS>.
>
> Two test cases:
> $ bash -c $'rm -f id_vers15.exe ; cp /usr/bin/id.exe id_vers15.exe ;
> ln -sf id_vers15.exe myid.exe ; cmd /C \'.\\\\\myid.exe\''
> $ bash -c $'rm -f id_vers15.exe ; cp /usr/bin/id.exe id_vers15.exe ;
> ln -sf id_vers15.exe myid.exe ; powershell -Command
> \'.\\\\\myid.exe\''
>
> In both test cases the copied and linked myid.exe cannot be executed.
>
> Is there a way to fix this?

Why does Cygwin not use SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE?

Aurélien
-- 
Aurélien Couderc <aurelien DOT couderc2002 AT gmail DOT com>
Big Data/Data mining expert, chess enthusiast

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