This manual is accompanied by a disk of exercises that must be installed in the PC, and that after October 2017, can display an installation error.
This error in some cases is caused by the certificate that accompanies the environment Adobe Air with which the application is developed.
According to this note the certificate has expired at the end of October 2017. Then, after this date, the installer signals error.
The easiest way to work around this error is to change the PC date before installing the software, moving it, for example to the 15th October 2017.
Once the installation is complete, we can reset the date to the correct value.
And we can update the development environment. Update that in my case happened in two steps, however without causing errors in the program.
Enjoy by ldfa.
P.S. For those wondering: "Because the author installs Complete First, seen who already has the Cambridge B2 certification?" The answer is: "a little revision :-) ".