Paul and ess-help,

I have a draft of the ESS repair that will work simultaneously for 32 and 64
bit R.
I need a bit more testing and expect to post it in the next few days.

 I've just run into this problem with 64 bit R.  I came into the
> problem after a user had installed R, both the 32 bit and 64 bit
> versions, over and over in an effort to make Emacs find it.
>
> I noticed that Win7 now has those 2 folders
>
> C:\Program Files
> C:\Program Files (x86)
>
Yes, the trick is to know how to live with those.  Details when I verify my
repair works.



> I'm a little interested to know about the ~1 thing and how it works
> when there is the (x86) folder.
>

File names in Windows can be very long and may include embedded blanks in
the names,
for example "A really long name.html".
DOS was restricted to names with up to 8 letters in the base name and up to
3 letters in
the extension and no embedded blanks, for example "abcd.r".  This is called
the 8.3 naming
system.

All Windows file names map to an 8.3 name on a specific computer.  The names
are usually the same from one machine to another, but are not guaranteed to
be the same.
It depends on the sequence in which the files were added to the file system.
Windows and DOS provide the /x option on the dir command to show the 8.3
name.


C:\emacs\ess\lisp>dir essd-r*.el /x
 Volume in drive C has no label.
 Volume Serial Number is 1CD3-C69F
 Directory of C:\emacs\ess\lisp
01/23/2009  03:47 PM            11,219 ESSD-R~1.EL  essd-r-args.el
01/23/2009  03:47 PM            22,163              essd-r.el
07/21/2009  11:41 PM             8,136 ESSD-R~2.EL  essd-rgui.el
               3 File(s)         41,518 bytes
               0 Dir(s)  20,744,585,216 bytes free
On the 64 bit machine I used on campus, I found
c:\>dir p*/x
 Volume in drive C is Windows7_OS
 Volume Serial Number is 841D-369E
 Directory of c:\
07/13/2009  11:20 PM    <DIR>                       PerfLogs
05/05/2010  02:43 PM    <DIR>          PROGRA~1     Program Files
05/05/2010  02:25 PM    <DIR>          PROGRA~2     Program Files (x86)


Rich

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