XFilesDialog works better in some respects than File-Ex with Corel software.
But the upgrade policy makes you a PenPal with Catalin for life. You provide the pen (and cheques) and Catalin will be your pal.
I think he just recompiles the program every few months to make it appear there are GREAT changes in his program.
If you only have a limited budget, go with File-Ex. I own both, so I feel I have the right to express an opinion on this software!