Many thanks to Dennis Nelson for his excellent comments.
As far as I can see this is the free trial offered at http://amazing-share-studio.com/download/dr_recovery.exe
I have followed both links on Checkout for downloading (by the way I didnt’ get a complete download I think with the “mirror” = original site when trying several times) , and when I visited amazing-share-studio.com afterwards the download link for the trial had alread changed color to “already visited”.
I think that’s the reason why Dennis Nelson was allowed to recover 20 files only.
That’s possibly a very unfriendly act of amazing-share-studio.com to offer an unusable trial as SoS giveaway. I hope this error (????) will be corrected by amazing-share-studio.com very soon.
Evidently they have changed their name in the meantime as I remember that I met their products “Any xyz” elsewhere before but never tried before.
I’m collecting recovery programs (non destructive ones) as in worst case I’ll try one after theother, as outcome need not be identical.
But best three advices: backup, backup and backup.
And sorry that I won’t bother to try out this trial.
And thanks to Ashraf (MrBoss) and others for great SoS site.