title: Exceptions when connecting to the HandHeld RFID Reader with C#
body: <p>I'm developing an application in C# in Visual Studio 2008 with the EMDK v2.3 to read tags with a RFID reader integrated in the HandHeld MC9090G with Windows Mobile 6.1. I've read the documentation to perform this task, but when I run the code it's throwing exceptions that I couldn't find the cause.
  I'm using the Symbol.RFID3 assembly.</p>
  
  <p>When I use</p>
  
  <p>1) Throws the exception: "OperationFailureException"</p>
  
  <pre><code>string hostname = "localhost";//localhost because the RFID reader is included in the HandHeld
  RFIDReader rfid3 = new RFIDReader(hostname, 0, 0);
  rfid3.Connect(); // line that throws the Exception
  </code></pre>
  
  <p>2) Throws the exception: "InvalidUsageException"</p>
  
  <pre><code>string hostname = "localhost";//localhost because the RFID reader is included in the HandHeld
  RFIDReader rfid3 = new RFIDReader(hostname, 5084, 10);
  rfid3.Connect(); //line that throws the Exception"
  </code></pre>
  
  <p>Any ideas regarding the cause?</p>