ROBOLAB 2.9 is an upgrade product. The installer for ROBOLAB 2.9 asks that you enter the serial number from a previous version of ROBOLAB (2.0 - 2.5.4). The number is printed on your 2.5.4 or earlier CD or case. If you can't find your original packaging from your previous version of ROBOLAB, you can contact your LEGO Education distributor and they can verify your purchase of an earlier version of ROBOLAB and provide you with a 2.5.4 serial number to enter.
For a list of LEGO Education distributors, click here.