Oh, in fact, I talked with Tygre who told me he managed to launch DukTape alone and NetSurf alone on his emulator. So, that means the binding doesn't work. Maybe the DukTape issue comes from there. He told me to look nsgenbind/test/data/bindings/browser-duk.bnd and nsgenbind/src/nsgenbind.c (NetScript downloads these files to compile NetSurf). I don't know if it can be useful and if it can help, I'm going to see in, but I prefer to warn you, just in case you would like to see...