You are welcome, Samuel. I wish it were perfect, but I have don't have enough Windows knowledge to make it so, even if it were possible... but it is good enough for me for now. Glad to know it works with AutoHide=Off also, I figured that was somewhat orthogonal, but I never got around to verifying that it was.
This thread may be interesting to you: Send window to back
but the Alt-Escape doesn't seem to do much to the taskbar in a quick try, it does work for other windows. Not sure if the program/script would do better on the taskbar.
Of course, you only need to bring windows you presently care about back in front of taskbar, that may or may not always be all of them that overlap.