[R] Using system to run a stand alone program that requires input in Windows

[Dr Carbon]

Under Windows I want to run a stand alone program that takes a number
of commands from the user. I've been running the program from the
command line using <

C:\Data\> foo.exe < params.txt

where foo is the program is params.txt is a text file with a few lines
(9) of parameters.

I want to run this from R using system a la:

system("foo.exe", input = "params.txt")

but that doesn't do it. What am I missing?

platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    2              
minor    1.0            
year     2005           
month    04             
day      18             
language R