The trial runs 15min at a time and can then be restarted. These packages contain QCAD, bundled with a free trial of QCAD Professional. The e-mail subject is 'Order / Commande / Bestellung' + your order number. Note: if you have already purchased QCAD Professional or QCAD/CAM, you can access your purchased software and e-books as well as updates directly through the download link that was sent to you via e-mail directly after your purchase.