At last I can break the silence
OK... It's not a super-duper juicy revelation, but it's exciting to me.
Raymond Chen has finally gone public with his book: https://blogs.msdn.com/oldnewthing/archive/2006/12/07/1233002.aspx
Many, many moons ago I was contacted by AW and asked to be one of the reviewers. Of course I said "Yes", and the chapters started arriving. I asked Raymond if I could blog about this, but he requested that I keep it quiet.
So somewhere at home I have WinWord drafts of the book. No, they're not for sale. :-)