Hello,
I'm a new user of doublecad and also french, so perhap's my english is not perfect...
http://forums.doublecad.com 
I've downloaded doublecad's free version but I didn't find the request form for ask the activation code ; so, please, someone can help me ?
I'm afraid that over 30 days, the version downloaded doesn't work anymore

Thank you very much for your answer.