These e-courses are no longer sold or maintained.
They are incompatible with the latest macOS versions (later than "Sierra") and with the lastest Windows versions (10 and future versions).
(The licence also only allows use on Windows and macOS PCs, not on Android or iOS tablets or smartphones.)
If you are in Windows (≥ 7 and < 10) or macOS (version ≤ Sierra) and the e-course does not work or you are encountering an activation problem, please do not hesitate to contact us. Please ensure that your message includes your order number and/or your licence key.