Hello Sir/Madam, If you just install CADian2011, your authority code would be issued through internet automatically without our support alike RESET a CADIan. How to download CADian 2011 ? Please refer to this steps below. 1. Move to [www.cadian.com >> Download >> Patch Version] at first. 2. You can come to CADian webhard as mentioned there. 3. There are some CADian versions at webhard. 4. And would you download and install CADian 2011 if your serial No is I14-ooooo-ooooooo ? 5. Now CADian will be executed. (ID and Password will be asked while registering it) Regards, CADian