Well, installed it, and indeed it does not display anu method for activation.
Next stepi downloaded the trial from Donemax itself, and installed that one (it did delete most of the sharewareparts), and ran it. No activation displayed. So reading more at Donemax : trial would only give 200MB restore (copy from D : The trial version allows you to recover 200MB files for free, if you want to recover unlimited files, just enter a valid license code to upgrade to full version.) Hey just tested and recoverd 14 GB, no issues at all.. SO best to safe the serial, and test it.
Maybe it is not data but time related. Anyway it works..(reminds me at first glance to EasUs).
Hope it helps anyone.