[ESS] Is there a good way to set shell variables before running S+6?

[Tim Hesterberg]

>| Is there a good way to set shell variables before running ESS's S+6
>| command?  I don't want to set shell variables and export them
>| globally; I want them to apply only to the process from which S+
>| starts.
>
>Can you say more about your environment?

Sorry.  I should know better.

I run in
(1) 
Windows XP, 
GNU Emacs 21.2.1 (i386-msvc-nt5.1.2600) of 2002-03-19 on buffy
ess-version 5.1.24
Cygwin (not sure what version; might be somewhat older, 2001, 
	DLL version 1.3.3?)
bash shell


(2) Solaris, 
GNU Emacs 21.1.1 (sparc-sun-solaris2.8, X toolkit, Xaw3d scroll bars) of 2001-12-02 on solaris
ess-version 5.1.24
csh