title: MongoDB authentication on Windows Sharded Cluster
body: <p>I have been tasked to prepare a Sharded MongoDB Cluster on a windows environment. This is the first time I work with this product. I have been trying to get authentication on MongoDB 2.4 to work on this windows Sharded Cluster environment and it's not working. Once I enable the auth option  on the 3 configuration servers, the MongoS instance is unable to start, when I remove the auth option, the MongoS instance works without any issues.</p>
  
  <p>Can someone please shed some light on how to get authentication to work? The documentation mentions a "KeyFile" option but I've tried to use it in windows and the option is not recognized.</p>
  
  <p>Thanks everyone.</p>
  
  <p>Jaime Gonzalez </p>