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Subject: RE: All Cygwin versions:How do I modify the Cygwin information stored  in the registry?
Date: Wed, 13 Jun 2007 07:35:50 -0400
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From: "Buchbinder, Barry (NIH/NIAID) [E]" <BBuchbinder AT niaid DOT nih DOT gov>
To: <Helge DOT Kleve AT t-online DOT de>, <cygwin AT cygwin DOT com>
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From: Helge Kleve AT xxx; Sent: Wednesday, June 13, 2007 4:12 AM
> Hello, I have tried to set a variable in the windows registry for the
mounting of cygwin directories. 
> This is to have the possibility to switch between different cygwin
installations without changing the registry.
> But is way don't work!!
>
> It seems that it is the Type REG_EXPAND_SZ that causes the error. 
> Is it possible that the Type REG_EXPAND_SZ is not right support by
cygwin?
>
>I will switch between a local installation and a installion on a net
drive and to change a environment variable is a easy way to do this job.
>
> thanks for help
> helge

Do not edit the registry for cygwin.  Use mount, umount, and regtool*.
In this case, you will probably only need mount.  Launch cygwin from a
batch file that sets up the mount table before launching bash (or
whatever shell you are using).

See
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
http://cygwin.com/cygwin-ug-net/using.html#mount-table
http://cygwin.com/cygwin-ug-net/using-utils.html#mount
http://cygwin.com/cygwin-ug-net/using-utils.html#umount

* regtool example:
http://cygwin.com/cygwin-ug-net/setup-maxmem.html

Good Luck.

- Barry

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