Topic: open remote desktop via link

My app is built for an office network running mostly windows machines. I want to add an option to open remote desktop on the client machine by clicking a link. The windows executable for that is mstsc.exe, and the connection will open directly if you supply a connection file (*.rdp) as cmd argument:

C:\> mstsc connection.rdp

I want to run this on the client side, but so far wasn't able to do so. I am using the ruby system function in my controller:

in the view:

<%= link_to 'connect', :url => { :action => 'run_remote' } %>

in the controller:
def run_remote
  system("mstsc", "#{RAILS_ENV}/lib/connection.rdp")

The server runs linux, but I tested this on the windows computer. What am I doing wrong? Should the connection file be kept on the client side?...