@PascalDragon
Could you please explain ?
The code-sample shows a very simple way of testing this.
This issue has now been reproduced by some people.
Just build FPC trunk and Lazarus trunk. And build+look at startlazarus.
Reason for asking.
I am using GetExeExt on many places in my own code without problem. As does Lazarus. So, this issue is unique in its occurrence at startlazarus. And will be very hard to reproduce. But in startlazarus, it is very visible.