R help - Jan 2002 - internet2 and proxies

gday R gurus,

I've never attempted to use download.file before on my win2k machine but
this version 1.4 looks exciting.  However, I'm not getting something right.

I've passed my R shortcut --internet2 and I can tell it's using the
wininet
calls because it's asking about authentication but how do I tell it my
username/password?

The help file only talks about user/pw for non wininet and I've searched
cran.  I thought wininet should prompt me via a dialog box.  I'm running
ie5.

thanks,
John Strumila

> {a <- CRAN.packages()
+ install.packages(select.list(a[,1],,TRUE), .libPaths()[1], available=a)}
trying URL `http://cran.r-project.org/bin/windows/contrib/PACKAGES'
Error in download.file(url = paste(contriburl, "PACKAGES", sep =
"/"),  :
        cannot open: HTTP status was `407 Proxy Authentication
Required'
> 
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On Mon, 7 Jan 2002, Strumila, John wrote:
> gday R gurus,
>
> I've never attempted to use download.file before on my win2k machine
but
> this version 1.4 looks exciting.  However, I'm not getting something
right.
Actually, it's unchanged for a while.
> I've passed my R shortcut --internet2 and I can tell it's using the
wininet
> calls because it's asking about authentication but how do I tell it my
> username/password?
>
> The help file only talks about user/pw for non wininet and I've
searched
> cran.  I thought wininet should prompt me via a dialog box.  I'm
running
> ie5.
You thought wrong: that's not what it is documented (by Microsoft) to do.
Where did that idea come from?
>From the same help file (download.file.Rd)
  There is an alternative method if you have Internet Explorer 4 or
  later installed.   You can use the flag \code{--internet2}, when
  the `Internet Options' of the system are used to choose proxies and so
  on; these are set in the Control Panel and are those used for Internet
  Explorer.  This version does not support \code{cacheOK = FALSE}.

Clear enough?  This worked for people under 1.3.1, and we've had not
contrary reports for 1.4.0.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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