lost key for eDrawing professional

Hello

I had eDrawing professional 2011 installed on my computer and I used it from time to time, successfully.

My hardDisk died on me, so I had to re-install all the computer.

I installed the eDrawing 2011 too, but now it is just eDrawing, without the word professional at the upper bar, and the measure tool is disabled (gray out)

What can I do ?

Thanks a lot

Oran

SolidworksEdrawings