Hi, Thanks for your reply. I have tried to find the email with the instructions, and i know that X-Sim did send me an email about this when i donated for the offline version, but i just cannot find the email, which is my fault. If i have to send you another donation in order to receive a new offline keycode its not a problem, your website has enabled me to build a diy motion simulator, and i am very,very grateful for that. So i'm sorry for losing the instructions and for creating a problem, but i am happy to re-donate in order to receive a new offline version. Thanks, Andy.