thomasrapp wrote:Interesting suggestion because the documentation says that if the requester fails to open, it will revert to an alert. Now we have an infinite loop, don't we.
Revert to an alert. LOL.

I wouldn't say something about IExec-Alert, because it is meant to show an error code. Displaying this in a GrimReaper is ok.
Though it could be suitably displayed in a system requester the Grim does show an alert code. Might not be as obvious as if you have to dig for info and go deeper than the first window.
But the GR also opens for IIntuition->DisplayAlert and IIntuition->TimedDisplayAlert. I surely consider this a bug. These functions are meant to give some information to the user if everything else fails. But if a GR opens instead, the information is lost.
That's what I found. This would have been the function I used. The input string now rendered useless.