This is a REALLY nasty error....
First, it got a  better. I have done nothing, but sometimes it works. Other times it crashes with same error but no pattern recognizable.... :-(
But the opera thing is repeatable. BUT ONLY after the first start of FARR when opera is the first search.
I don´t know if it is economic to look for the cause, because my XP installation is quite old and I use a lot of shell tools.
I use executor too, could this be a problem? FARR is a candidate to replace executor because of it´s even more mightier functionality :-)
I will try to uninstall and use the non installer version.

If you have a debug Version I would like to help finding the error! But have a lot to work to do currently, so there could be delays....

Greetings, Frank!

Yes, it happens when I start typing....
Eg.: I serch for opera, then I type o....p....e.... then the error occurs ......

Strange......