Below are links for FREE access to 2 codes. The test period (*)  will go up to June 30th. My goal is to help engineering teams from undeveloped countries. Maybe, after the test period , I will keep it FREE, I will wait for the reactions to decide. The user need only to register an e-mail and create a password. I even removed the e-mail confirmation.   Comments on errors and bugs are very welcome. Remember , this is an experimental period and bugs will come Comments and suggestions are