You have one on me

Some time ago I got the FFedit file and tried to use it
I never could figure it out as the files created were very different from the original IL2 files

I was using it for IL2 and also to figure out the works of the PID (Physical interface devices in USB)
So I now can only roughly edit the data fields with a Hex editor
I would like to be able to use FFedit though

I guess I am too dum
I then lost interest and ... the damn file...