You might have seen the similar script in other blogs for migrating users / groups. Here is my contribution for the same requirement. You can use this script for migrating bulk AD users and AD groups in a single shot. I  have created this script...

  Happy New Year – 2012 Recently I had worked with my good friend Bobby on a special requirement for one of his customers. Customer has a SharePoint web application created in the default zone enabled with SSL and the same web application was published...