Yes, I have only 1 configuration. As show above both name and location are default.
Perhaps I was a little short on context in my original question. Sorry.
What I saw was, when the installer showed me the final screen and I ticked "Run TakeCommand", installer exited and TCMD was started but the TCStart that my TCMD.INI points to was not executed. Perhaps I jumped to conclusions, but that led me to think that the command to run TCMD in the installer was intensionally setup to ignore either the ini-file or the startup batches.
So let me rephrase my original observation that: (at least in my case) "the fresh instance of TCMD started by the installer did not run TCStart or TCexit although an immediate subsequent restart using my usual hyperlink proved that TCMD.INI and both startup batches were still setup correctly."