Thanks for bringing this up and specially for putting this all in one place - because I found this:

>Top level form loses WIndows focus Thread #639485 Message #640213

And it was a thing that I'd have to search for. Now I just followed the link to the thread.

One of the reasons I'm rather searching UT than KB is that UT is much more helpful. I've found things in KB which were misleading, obsolete, and largely disregarding far better solutions that already existed here. Many were helpful, of course, but finding them proved to be a cumbersome job.