Hey there, I just would like to confirm. We are using this bit of code to talk to PD: t_binbuf *b = binbuf_new(); binbuf_text(b, msg, strlen(msg)); binbuf_eval(b, 0, 0, 0); binbuf_free(b); Question is whether that is safe to use from another thread or not. It seems like it is not. Can anyone confirm? cheers -- Torsten