Grasshopper launcher rhino 6 problems

Had GHlauncher installed with rhino 5, when i installed rhino 6, i kept 5 and ghlauncher
after using 6 for a while there were some crashes and incompatibilities, so i uninstalled 6, but now ghlauncher doesn’t work properly
when i double click a gh file, nothing happens, it seems like ghlauncher is trying to open the file with 6.
however, when an instance of 5 is already open, double clicking a gh file, works just fine.
how do i fix this? is there some left over code from 6 i need to remove?

I kinda got it fixed editing registry

Computer\HKEY_CLASSES_ROOT\Grasshopper Document\shell\open\command

delete command
and change the value of default to
"C:\Program Files\Rhinoceros 5 (64-bit)\System\Rhino.exe" “%1” “open”

the only problem being i can’t double click gh files to open them in the current instance, it’ll always open a new rhino, which is not a huge deal

But if someone have a proper fix, please share

Hello - I guess you should check with the developer of that thing -