Thanks for pointing out the transcripts Chris. (Must read webpages closer in future).
Thanks Rondon for the link to the podcast.
I hadn't read the transcripts when I mentioned "Easter Eggs", and I was not suggesting that this was such, only that programmers have been known to add "extras" to programmes, including Easter Eggs and backdoor access, and these seem to regularly get past the procedures that are meant to check for them.
Whether this is such, is difficult to say, based on the situation stated so far. I look forward to seeing (hearing) the results of Steve Gibson's further investigations.
As to whether this was a deliberate M$ backdoor, I think Steve made it quite clear that he was in no way claiming it was, based on the "evidence" he had so far collated, only that it seemed
to be a deliberate programme function, and not a piece of buggy code.
As I said, I look forward to more on this.