"'mongoimport' is not recognized as an internal or external command" when creating db using mongojs

How to create DB, using mongojs? I tried to run command, but there are errors...

var db = require('mongojs').connect('learn', ['mikecollection']),
    mycollection = db.collection('mikecollection'),
    query_results,
    data = require('./data.json'),
    sys = require('sys');

var util = require('util'),
    exec = require('child_process').exec,
    child;

child = exec('mongoimport --db mikeDB --collection mycol --file "A:\Users\Mike\Desktop\nodejs\2_temp\data.json"',
  function (error, stdout, stderr) {
      console.log('stdout: ' + stdout);
      console.log('stderr: ' + stderr);
      if (error !== null) {
          console.log('exec error: ' + error);
      }
  });

Error:

Error: Command failed: 'mongoimport' is not recognized as an internal or external command –