Fortunately Tosh it is not OEM. They re-validated it when I had to a re-install for the third time following two HDD crashes but that was a few months ago AND on other MS downloads during the recent past they called it a genuine copy and validated it!
Its working OK alright but I don't want to suffer the arrows of outrageous fortune if I let them validate it again.
Would there be a contact with them to justify my copy - anyone?