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Date:	Sat, 19 Apr 2014 11:42:27 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: dos telnet.exe not showing up with cygwin "ls"
Message-ID:	<20140419094227.GF16638@calimero.vinschen.de>
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On Apr 19 00:41, Andy wrote:
> Larry Hall (Cygwin <reply-to-list-only-lh <at> cygwin.com> writes:
> >On 04/18/2014 06:36 PM, Andy wrote:
> >> I'm curious about the circumstance that allows a file that is
> >> readable and executable by all to invisible to cygwin.  Just
> >> something to be aware of when using cygwin, that some mechanism may
> >> cause some of the Windows file system to be invisible.
> >
> > Sounds to me like you installed 32-bit Cygwin on a 64-bit Windows
> > O/S.  If so, the issue you're seeing isn't Cygwin-specific.  All
> > Windows 32-bit apps would experience the same thing.  If you need
> > Cygwin to see both 32 and 64-bit apps/dlls on 64-bit Windows, install
> > 64-bit Cygwin.
> >=20
> > <http://cygwin.com/setup-x86_64.exe>
>=20
> Yes, I'm aware of the 64-bit version of cygwin.  I wasn't aware of this
> hiccup between 32 and 64-bit apps (that the former can't see the latter).=
=20
> All the more reason to move to 64-bit sooner rather than later.  When I
> installed the 32-bit cygwin, it was some time ago, when I was concerned
> about compatibility with all things 32-bit.  Now that 64-bit is much more
> prevalent, I the tides have shifted.

As Larry wrote, this has nothing to do with Cygwin:

64 bit apps on 64 bit find their stuff as usual in C:\Windows\System32.

For 32 bit apps on 64 bit Windows, all access to C:\Windows\System32
is redirected to the directory C:\Windows\SysWOW64, which is populated.
with the 32 bit WIndows tools and DLLs.

Since Vista you can also access the 64 bit C:\Windows\System32 from 32
bit apps, by using the fake path C:\Windows\Sysnative


HTH,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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