[R] how to install JGR manually?

[Carl Witthoft]

Here's the problem: on Windows, the 'jgr.exe' tool starts up by checking 
  for a connecting to the 'net in order to grab the support packages. 
Well,  we have machines at work that are not and never will be connected 
to the Internet.   I tried manually installing all the packages (JGR, 
Rjava,  etc) but the jgr.exe still tries to find a connection.

Is there any way around this?

thanks
Carl