SOLVED.
Maybe the root, or the beginning of my problem (after I caused it by installing the sqlite component) was the sqlite*.dll.
Besides the attempts already mentioned, I had gone looking for the dll and found nothing but sqlite3.dll; certainly, not a match. I put it in the lazarus directory and, of course, the problem persisted.
Then, I started the bumbling around in an effort to find a fix. I really screwed things up. Then, I got "Application will not start... 0xc000007b" error.
That took a while. Finally, I downloaded (and paid for) Restoro, an application for finding and repairing (the paid for part) low level windows errors.
Still had the 0xc000007b error.
Uninstalled lazarus and wiped the lazarus directory.
Installed lazarus and, voila, it starts, now.
Thank you for all your efforts.
Sherril