about downloading separate files

[Jones Khoo]

is there a way to download separate files instead of a whole package 
when 
updating your cygwin system.

Take an example, I want to use gv, and it requires cygXmu-6.dll, since 
I don't 
have this file in my original Xfree86-bin, I need to download this 
file, yet I 
don't want to download a few M's package just for the sake of a few k's 
file 
via my slow connection.

Or can anyone send me this file, thanks.