From ggrothendieck at gmail.com  Sat May 23 14:11:09 2009
From: ggrothendieck at gmail.com (Gabor Grothendieck)
Date: Sat, 23 May 2009 08:11:09 -0400
Subject: [Rd] Strange install key for R
In-Reply-To: <4A17E0CD.70804@statistik.tu-dortmund.de>
References: <971536df0905221412g2d703064ub4d704e9a7a23bbc@mail.gmail.com> 
	<4A17E0CD.70804@statistik.tu-dortmund.de>
Message-ID: <971536df0905230511k36d0dcecyf99fa9dc5e10aec@mail.gmail.com>

2009/5/23 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>
>
> Gabor Grothendieck wrote:
>>
>> One user of my batchfiles
>> http://batchfiles.googlecode.com
>> found they did not find the R registry key because it mysteriously
>> was at hklm\software\wow6432Node. ? The system
>> was a 64 bit system. I've always seen the key at
>> hklm\software\R-core\R which is what the batchfiles assume.
>
> So you have not been on 64-bit Windows before - and you still you those
> batchfiles? Anyway, it does redirect the entries for (almost?) all 32-bit
> Software. You might want to read MS Documentation if you feel this is an
> important issue.

For architectures I don't have I rely on users to provide feedback.
On 64 bit Windows, the key is not being redirected by Windows.
I assume that this is dependent on how one accesses the key.  Perhaps
redirection is supported through certain APIs and not others.  At any rate,
I am assuming from your answer that R is not involved in such redirection
and am adding code to handle both sets of keys.



[Rd] Strange install key for R
Gabor Grothendieck