Invoke windows commands from RTC javascript

Hi all,

    I am trying to invoke a simple windows command from javascript within RTC and was unsuccessful.  This command is invoked when the buildtrackingitem entered "Declare Green" state.  I tried WScript.Shell but not working so far.  Please see the script snippet below for more details.  Any suggestion/help would be much appreciated.

dojo.provide("com.test.providers.script.ValidateStatetoDeploy");

dojo.require("com.ibm.team.workitem.api.common.Status");
dojo.require("com.ibm.team.workitem.api.common.Severity");
dojo.require("com.ibm.team.workitem.api.common.WorkItemAttributes");

dojo.require("dojo.data.ItemFileWriteStore");

(function() {
   
    var vStatus = com.ibm.team.workitem.api.common.Status;
    var Severity = com.ibm.team.workitem.api.common.Severity;
    var WorkItemAttributes = com.ibm.team.workitem.api.common.WorkItemAttributes;
   
    dojo.declare("com.test.providers.script.ValidateStatetoDeploy", null, {

    validate: function(attributeId, workItem, configuration) {
 
 if (workItem.getValue(WorkItemAttributes.TYPE) === "com.ibm.team.workItemType.buildtrackingitem" && workItem.getValue(WorkItemAttributes.STATE) === "com.ibm.team.workitem.buildTrackingWorkflow.state.s3") {

  //invoke windows command here
  
  try{
  var shell = WScript.CreateObject("WScript.Shell");
  } catch(err){
  console.log(err);
  }

  shell.Run("echo > C:\tmp\validatefile.txt");
  
/*  try{
  var wsh = new ActiveXObject("WScript.Shell"); 
  }catch(err){
     console.log(err);
  }

  wsh.Run("echo > C:\tmp\validateFile.txt");
*/

  return vStatus.OK_STATUS;

 } else {
  var serverity = configuration.getChild("parameters").getStringDefault("severity", Severity.ERROR.name);
  var message = configuration.getChile("parameters").getStringDefault("message", "");
  return new vStatus(Severity[severity], message); 
      }
 }
});
})();