Lexia-3 Diagbox error 20 (failure of the activation), how to solve?

Q: During the installation of Lexia-3, I got ERROR reading “Failure of the activation (error 20).

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A: lexia3 pp2000 software and diagbox v6.01 software was stored in the same one CD, and it is easily to get diagbox error 20, the solution is to download diagbox V6.01 software
at: http://www.chinaautodiag.com/download/diagbox-v6.01-setup.zip (the two software is separately stored in two different CD) , try to reinstall and the problem will be solved.