Thanks both of you.
After some trial and error I found the problem. I can not edit the itby bity little line of text that is truncated.
So I have to copy and paste into notepad, increase the font size,turn on ward-wrap and then edit the line. Than past eit back.
To verify my work, I open a CMD box and increase font size
See picture below. I put F:\QB64 on the tail.
Now I can invoke the EXE files in that folder when I am working in another place.