Hi Thomas,
I ran a test with the attached file and it create nio_tfd_data.c correctly.
Please note that you may also edit httpsrv_main.c to match your html files and the subfolders where they are created.
As you can see the code is expecting index.html to be inside folder 'web' which is inside folder filesystem.
sprintf(indexes[i], "\\index.html");
params[i].root_dir = "tfs:\\web";
Regards,
Carlos