Helped me to pass the exam, but ...

There are 2 license key per CD-Rom, which are registered online.
Once registered, the key is "used up".
This is until today (07.10.2009) in the product description.

The software was planned as exam preparation for me and my colleagues.

My operating system: Windows Vista (test license - limited).
After the trial license was expired, including the first of the two license key was unusable.

Request from the publisher:
A resounding NO to the reactivation of the first key.

The key of my colleague is now useless, since his classroom computer broke.

Conclusion:
- The entire 70-620 CD is now unusable.
- The assigned stars from me (2 pieces) are only for the content.
- For the next tests only books are purchased.