I was wondering is their a way to use HOXS64 to load roms through file explorer ?. I have it set as the default for D64, T64 and PRG files but it wont load them by double clicking on them. It will only open the emulator.
I had this issue also the way to fix it is go to manage emulator click on Stella then the edit associated platforms tab and click just below where it says associated platform and put atari for atari 2600.